说明：准备出一个系列，所谓精髓讲C#语言要点。这个系列没有先后顺序，不过尽量做到精。可能会不断增删整理，本系列最原始出处是csdn博客,谢谢关注。C#精髓第四讲 GridView 72般绝技作者：清清月儿主页：http://blog.csdn.net/21aspnet/           时间：2007.3.24-26为了写本文，又搭工又搭料，累的2天2宿没睡觉，这篇文章实在是耗费我太多的心血，版权永远属于CSDN社区的我，请不要试图修改本文，破坏全文的完整性，希望您尊重我的劳动成果！快速预览：GridView无代码分页排序GridView选中，编辑，取消，删除GridView正反双向排序GridView和下拉菜单DropDownList结合GridView和CheckBox结合鼠标移到GridView某一行时改变该行的背景色方法一鼠标移到GridView某一行时改变该行的背景色方法二GridView实现删除时弹出确认对话框GridView实现自动编号GridView实现自定义时间货币等字符串格式GridView实现用“...”代替超长字符串GridView一般换行与强制换行GridView显示隐藏某一列GridView弹出新页面/弹出新窗口GridView固定表头(不用javascript只用CSS，2行代码，很好用)GridView合并表头多重表头无错完美版（以合并3列3行举例）GridView突出显示某一单元格（例如金额低于多少，分数不及格等）GridView加入自动求和求平均值小计GridView数据导入Excel/Excel数据读入GridView=================================如果你喜欢《GridView 72般绝技》这个博客帖子，那么你应该喜欢我的新书我的新书《asp.net开发技巧精讲》2011.12.12日，写在我的新书开印之前 ================================= 1.GridView无代码分页排序：效果图：1.AllowPaging设为True，aspx代码中是Allowpaging="True"；2.默认1页10条，如果要修改每页条数，修改PageSize即可，在aspx代码中是PageSize="12"。3.默认的是单向排序的，右击GridView弹出“属性”，选择AllowSorting为True即可。2.GridView选中，编辑，取消，删除：效果图：后台代码：你可以使用sqlhelper,本文没用。代码如下：using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;public partial class _Default : System.Web.UI.Page{//清清月儿http://blog.csdn.net/21aspnet     SqlConnection sqlcon;    SqlCommand sqlcom;    string strCon = "Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码";    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            bind();        }    }    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)    {        GridView1.EditIndex = e.NewEditIndex;        bind();    }//删除    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)    {        string sqlstr = "delete from 表 where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";        sqlcon = new SqlConnection(strCon);        sqlcom = new SqlCommand(sqlstr,sqlcon);        sqlcon.Open();        sqlcom.ExecuteNonQuery();        sqlcon.Close();        bind();    }//更新    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)    {        sqlcon = new SqlConnection(strCon);        string sqlstr = "update 表 set 字段1='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',字段2='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "',字段3='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='"            + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";        sqlcom=new SqlCommand(sqlstr,sqlcon);        sqlcon.Open();        sqlcom.ExecuteNonQuery();        sqlcon.Close();        GridView1.EditIndex = -1;        bind();    }//取消    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)    {        GridView1.EditIndex = -1;        bind();    }//绑定    public void bind()    {        string sqlstr = "select * from 表";        sqlcon = new SqlConnection(strCon);        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);        DataSet myds = new DataSet();        sqlcon.Open();        myda.Fill(myds, "表");        GridView1.DataSource = myds;        GridView1.DataKeyNames = new string[] { "id" };//主键        GridView1.DataBind();        sqlcon.Close();    }}前台主要代码：                            ... ...
                             
                              
                                  
                                   
                                   
                                   
                                   
                                   
                                   
                               
                              
                              
                              
                              
                          
     3.GridView正反双向排序：效果图：点姓名各2次的排序，点其他也一样可以。后台代码：using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;public partial class Default3 : System.Web.UI.Page{//清清月儿的博客http://blog.csdn.net/21aspnet     SqlConnection sqlcon;    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=";    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            ViewState["SortOrder"] = "身份证号码";            ViewState["OrderDire"] = "ASC";            bind();        }    }    protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)    {        string sPage = e.SortExpression;        if (ViewState["SortOrder"].ToString() == sPage)        {            if (ViewState["OrderDire"].ToString() == "Desc")                ViewState["OrderDire"] = "ASC";            else                ViewState["OrderDire"] = "Desc";        }        else        {            ViewState["SortOrder"] = e.SortExpression;        }        bind();    }    public void bind()    {               string sqlstr = "select top 5 * from 飞狐工作室";        sqlcon = new SqlConnection(strCon);        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);        DataSet myds = new DataSet();        sqlcon.Open();        myda.Fill(myds, "飞狐工作室");        DataView view = myds.Tables["飞狐工作室"].DefaultView;        string sort = (string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"];        view.Sort = sort;        GridView1.DataSource = view;        GridView1.DataBind();        sqlcon.Close();    }}前台主要代码：
                             
                              
                                   
                                   
                                   
                                   
                                                              
                              
                              
                              
                              
                          
      4.GridView和下拉菜单DropDownList结合：效果图：后台代码：using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;public partial class Default4 : System.Web.UI.Page{    SqlConnection sqlcon;    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";    protected void Page_Load(object sender, EventArgs e)    {        DropDownList ddl;        if (!IsPostBack)        {            string sqlstr = "select top 5 * from 飞狐工作室";            sqlcon = new SqlConnection(strCon);            SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);            DataSet myds = new DataSet();            sqlcon.Open();            myda.Fill(myds, "飞狐工作室");            GridView1.DataSource = myds;            GridView1.DataBind();            for (int i = 0; i <= GridView1.Rows.Count - 1; i++)            {                DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];                if (Convert.ToString(mydrv["员工性别"]).Trim() == "True")                {                    ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");                    ddl.SelectedIndex = 0;                }                if (Convert.ToString(mydrv["员工性别"]).Trim() == "False")                {                    ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");                    ddl.SelectedIndex = 1;                }            }            sqlcon.Close();        }    }    public SqlDataReader ddlbind()    {        string sqlstr = "select distinct 员工性别 from 飞狐工作室";        sqlcon = new SqlConnection(strCon);        SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon);        sqlcon.Open();        return sqlcom.ExecuteReader();    }前台主要代码：
                             
                              
                                   
                                   
                                   
                                       
                                            
                                             
                                         
                                    
                                   
                                                              
                              
                              
                              
                              
                          
     5.GridView和CheckBox结合：效果图：后台代码：using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;public partial class Default5 : System.Web.UI.Page{//清清月儿http://blog.csdn.net/21aspnet    SqlConnection sqlcon;    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            bind();        }    }    protected void CheckBox2_CheckedChanged(object sender, EventArgs e)    {        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)        {            CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");            if (CheckBox2.Checked == true)            {                cbox.Checked = true;            }            else            {                cbox.Checked = false;            }        }    }    protected void Button2_Click(object sender, EventArgs e)    {        sqlcon = new SqlConnection(strCon);        SqlCommand sqlcom;        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)        {            CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");            if (cbox.Checked == true)            {                string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[i].Value + "'";                sqlcom = new SqlCommand(sqlstr, sqlcon);                sqlcon.Open();                sqlcom.ExecuteNonQuery();                sqlcon.Close();            }        }        bind();    }    protected void Button1_Click(object sender, EventArgs e)    {        CheckBox2.Checked = false;        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)        {            CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");            cbox.Checked = false;        }    }    public void bind()    {        string sqlstr = "select top 5 * from 飞狐工作室";        sqlcon = new SqlConnection(strCon);        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);        DataSet myds = new DataSet();        sqlcon.Open();        myda.Fill(myds, "tb_Member");        GridView1.DataSource = myds;        GridView1.DataKeyNames = new string[] { "身份证号码" };        GridView1.DataBind();        sqlcon.Close();    }}前台主要代码：
                             
                              
                                   
                                       
                                            
                                         
                                    
                                    
                                   
                                                              
                                                              
                              
                              
                              
                              
                          
                          
                         
                         
     6.鼠标移到GridView某一行时改变该行的背景色方法一：效果图：做法：双击GridView的OnRowDataBound事件；在后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示：protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)    {        int i;        //执行循环，保证每条数据都可以更新        for (i = 0; i < GridView1.Rows.Count; i++)        {            //首先判断是否是数据行            if (e.Row.RowType == DataControlRowType.DataRow)            {                //当鼠标停留时更改背景色                e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");                //当鼠标移开时还原背景色                e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");            }        }    }前台代码：        
     
    
      
        
                   
                        
                         
                         
                         
                     
                    
                    
                    
                    
                    
                
               
              
      
    
     
7.鼠标移到GridView某一行时改变该行的背景色方法二：效果图：做法：和上面的一样就是代码不同protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)    {        //int i;        ////执行循环，保证每条数据都可以更新        //for (i = 0; i < GridView1.Rows.Count; i++)        //{        //    //首先判断是否是数据行        //    if (e.Row.RowType == DataControlRowType.DataRow)        //    {        //        //当鼠标停留时更改背景色        //        e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");        //        //当鼠标移开时还原背景色        //        e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");        //    }        //}        //如果是绑定数据行        if (e.Row.RowType == DataControlRowType.DataRow)        {            //鼠标经过时，行背景色变            e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");            //鼠标移出时，行背景色变            e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");        }    }8.GridView实现删除时弹出确认对话框：效果图：实现方法：双击GridView的OnRowDataBound事件；在后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示：    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)    {        //如果是绑定数据行        if (e.Row.RowType == DataControlRowType.DataRow)        {             if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)            {                ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除：/"" + e.Row.Cells[1].Text + "/"吗?')");            }        }    }9.GridView实现自动编号：效果图：实现方法：双击GridView的OnRowDataBound事件；在后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示：    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)    {        //如果是绑定数据行 //清清月儿http://blog.csdn.net/21aspnet         if (e.Row.RowType == DataControlRowType.DataRow)        {            ////鼠标经过时，行背景色变            //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");            ////鼠标移出时，行背景色变            //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");            ////当有编辑列时，避免出错，要加的RowState判断            //if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)            //{            //    ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除：/"" + e.Row.Cells[1].Text + "/"吗?')");            //}        }        if (e.Row.RowIndex != -1)        {            int id = e.Row.RowIndex + 1;            e.Row.Cells[0].Text = id.ToString();        }    } 注意这时最好把前台的第一列的表头该为“编号”，因为以前的第一列被“吃掉”了。
                             
                              
                                  
                                   
                                   
                                   
                                   
                                   
                                   
                               
                              
                              
                              
                              
                          
     10.GridView实现自定义时间货币等字符串格式：效果图：图1-未格式化前图2-格式化后解决方法：在asp.net 2.0中，如果要在绑定列中显示比如日期格式等，如果用下面的方法是显示不了的
     主要是由于htmlencode属性默认设置为true,已防止XSS攻击，安全起见而用的，所以，可以有以下两种方法解决1、
     
      
       
      
     将htmlencode设置为false即可另外的解决方法为，使用模版列
     
      
       
        
         
        
        
         
          '>
         
        
       
      
     前台代码：
                 
                      
                       
                       
                       
                       
                   
                  
                  
                  
                  
                  
              
             
     附录-常用格式化公式：{
    0:C}  货币；{
    0:D4}由0填充的4个字符宽的字段中显示整数；{
    0:000.0}四舍五入小数点保留第几位有效数字；{
    0:N2}小数点保留2位有效数字；{
   0:N2}%   小数点保留2位有效数字加百分号；{
    0:D}长日期；{
   0:d}短日期；{
   0:yy-MM-dd}   例如07-3-25；；{
   0:yyyy-MM-dd}  例如2007-3-25 11.GridView实现用“...”代替超长字符串：效果图：解决方法：数据绑定后过滤每一行即可for (int i = 0; i <= GridView1.Rows.Count - 1; i++)        {            DataRowView mydrv;            string gIntro;            if (GridView1.PageIndex == 0)            {                mydrv = myds.Tables["飞狐工作室"].DefaultView[i];//表名                gIntro = Convert.ToString(mydrv["家庭住址"]);//所要处理的字段                GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);            }            else            {                mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];                gIntro = Convert.ToString(mydrv["家庭住址"]);                GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);            }        } 调用的方法：    public string SubStr(string sString, int nLeng)    {        if (sString.Length <= nLeng)        {            return sString;        }        string sNewStr = sString.Substring(0, nLeng);        sNewStr = sNewStr + "...";        return sNewStr;    }后台全部代码：using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;public partial class _Default : System.Web.UI.Page{    SqlConnection sqlcon;    SqlCommand sqlcom;    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            ViewState["SortOrder"] = "身份证号码";            ViewState["OrderDire"] = "ASC";            bind();        }    }    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)    {        GridView1.EditIndex = e.NewEditIndex;        bind();    }    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)    {        string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";        sqlcon = new SqlConnection(strCon);        sqlcom = new SqlCommand(sqlstr,sqlcon);        sqlcon.Open();        sqlcom.ExecuteNonQuery();        sqlcon.Close();        bind();    }    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)    {        sqlcon = new SqlConnection(strCon);        string sqlstr = "update 飞狐工作室 set 姓名='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"            + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";        sqlcom=new SqlCommand(sqlstr,sqlcon);        sqlcon.Open();        sqlcom.ExecuteNonQuery();        sqlcon.Close();        GridView1.EditIndex = -1;        bind();    }    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)    {        GridView1.EditIndex = -1;        bind();    }    public void bind()    {        string sqlstr = "select top 5 * from 飞狐工作室";        sqlcon = new SqlConnection(strCon);        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);        DataSet myds = new DataSet();        sqlcon.Open();        myda.Fill(myds, "飞狐工作室");        GridView1.DataSource = myds;        GridView1.DataKeyNames = new string[] { "身份证号码" };        GridView1.DataBind();        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)        {            DataRowView mydrv;            string gIntro;            if (GridView1.PageIndex == 0)            {                mydrv = myds.Tables["飞狐工作室"].DefaultView[i];                gIntro = Convert.ToString(mydrv["家庭住址"]);                GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);            }            else            {                mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];                gIntro = Convert.ToString(mydrv["家庭住址"]);                GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);            }        }               sqlcon.Close();    }    public string SubStr(string sString, int nLeng)    {        if (sString.Length <= nLeng)        {            return sString;        }        string sNewStr = sString.Substring(0, nLeng);        sNewStr = sNewStr + "...";        return sNewStr;    }    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)    {        //如果是绑定数据行         if (e.Row.RowType == DataControlRowType.DataRow)        {            ////鼠标经过时，行背景色变            //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");            ////鼠标移出时，行背景色变            //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");            ////当有编辑列时，避免出错，要加的RowState判断            //if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)            //{            //    ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除：/"" + e.Row.Cells[1].Text + "/"吗?')");            //}        }        if (e.Row.RowIndex != -1)        {            int id = e.Row.RowIndex + 1;            e.Row.Cells[0].Text = id.ToString();        }    }} 11.GridView一般换行与强制换行：效果图：首先设置
     gridview里有一列绑定的数据很长，显示的时候在一行里面显示，页面拉得很宽。原因是连续英文段为一个整体导致的，在RowDataBound中添加上了一句e.Row.Cells[2].Style.Add("word-break", "break-all")就可以。如果要给所有的列增加此属性： protected void Page_Load(object sender, EventArgs e)    {        //正常换行        GridView1.Attributes.Add("style", "word-break:keep-all;word-wrap:normal");        //下面这行是自动换行        GridView1.Attributes.Add("style", "word-break:break-all;word-wrap:break-word");        if (!IsPostBack)        {             bind();//调用数据绑定即可        }    }总之：善用CSS的word-break:break-all;word-wrap:break-word属性即可，这个属性是通用的对于顽固的南换行问题都可以解决，不局限于GridView。 12.GridView显示隐藏某一列：本方案为月儿独创，不同于网上其他方式，我觉得用一个CheckBox更人性化，这样可以隐藏不必要的列，让用户自己选择需要出现的列，在处理多列时这是一个很好的解决方案！效果图：图1-开始图2-点击显示的CheckBox后解决方案：public void bind()    {        string sqlstr = "select top 5 * from 飞狐工作室";        sqlcon = new SqlConnection(strCon);        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);        DataSet myds = new DataSet();        sqlcon.Open();        myda.Fill(myds, "飞狐工作室");        GridView1.DataSource = myds;        GridView1.DataKeyNames = new string[] { "身份证号码" };        GridView1.DataBind();        sqlcon.Close();        GridView1.Columns[3].Visible = false;//一开始隐藏        CheckBox1.Checked = false;//如果不这样后面的代码会把他True    }双击CheckBox1，在CheckedChanged方法里写上代码，最后代码如下：protected void CheckBox1_CheckedChanged(object sender, EventArgs e)    {         GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;         Response.Write("GridView1的第4列现在的显示隐藏状态是："+GridView1.Columns[3].Visible.ToString());    }注意：CheckBox1的AutoPostBack要True！后台全部代码如下：using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;public partial class _Default : System.Web.UI.Page{    SqlConnection sqlcon;    SqlCommand sqlcom;     string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            ViewState["SortOrder"] = "身份证号码";            ViewState["OrderDire"] = "ASC";            bind();                   }    }    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)    {        GridView1.EditIndex = e.NewEditIndex;        bind();    }    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)    {        string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";        sqlcon = new SqlConnection(strCon);        sqlcom = new SqlCommand(sqlstr,sqlcon);        sqlcon.Open();        sqlcom.ExecuteNonQuery();        sqlcon.Close();        bind();    }    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)    {        sqlcon = new SqlConnection(strCon);        string sqlstr = "update 飞狐工作室 set 姓名='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"            + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";        sqlcom=new SqlCommand(sqlstr,sqlcon);        sqlcon.Open();        sqlcom.ExecuteNonQuery();        sqlcon.Close();        GridView1.EditIndex = -1;        bind();    }    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)    {        GridView1.EditIndex = -1;        bind();    }    public void bind()    {        string sqlstr = "select top 5 * from 飞狐工作室";        sqlcon = new SqlConnection(strCon);        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);        DataSet myds = new DataSet();        sqlcon.Open();        myda.Fill(myds, "飞狐工作室");        GridView1.DataSource = myds;        GridView1.DataKeyNames = new string[] { "身份证号码" };        GridView1.DataBind();        sqlcon.Close();        GridView1.Columns[3].Visible = false;        CheckBox1.Checked = false;    }    protected void CheckBox1_CheckedChanged(object sender, EventArgs e)    {         GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;         Response.Write("GridView1的第4列现在的显示隐藏状态是："+GridView1.Columns[3].Visible.ToString());    }}前台代码：        
     
    
      
                   
                               
                                
                                    
                                     
                                     
                                     
                                     
                                     
                                     
                                 
                                
                                
                                
                                
                            
               
       
      
    
     
 13.GridView弹出新页面/弹出制定大小位置新窗口：效果图：方案一：简单的方法，新窗口不固定大小 
                             
                              
                                  
                                   
                                   
                                   
                           
                                   
                                   
                                   
                               
                              
                              
                              
                              
                          
     DataNavigateUrlFields是链接的字段名，DataNavigateUrlFormatString是路径。方案二：精确控制弹出窗口大小位置
     使用的是结合javascript的window.open方法，关于window.open的参数网上有很多帖子，本站也有许多参考弹出窗口大全 http://blog.csdn.net/21aspnet/archive/2004/10/25/150231.aspx   即可！  14.GridView固定表头(不用javascript只用CSS!，很好用)：效果图：代码：                
     
    
      
                   
                               
                                
                                    
                                     
                                     
                                     
                                                            
                                
                                
                                
                                
                            
               
      
    
     
用法：CSS设如上的样式，HeaderStyle加CssClass="Freezing，套住GridView的Div设置高度宽度 
     
      15.GridView合并表头多重表头无错完美版（以合并3列3行举例）效果图：后台代码：using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;using System.Drawing;public partial class _Default : System.Web.UI.Page{    SqlConnection sqlcon;    SqlCommand sqlcom;    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            bind();                   }    }    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)    {        GridView1.EditIndex = e.NewEditIndex;        bind();    }    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)    {        sqlcon = new SqlConnection(strCon);        string sqlstr = "update 飞狐工作室 set 姓名='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"            + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";        sqlcom=new SqlCommand(sqlstr,sqlcon);        sqlcon.Open();        sqlcom.ExecuteNonQuery();        sqlcon.Close();        GridView1.EditIndex = -1;        bind();    }    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)    {        GridView1.EditIndex = -1;        bind();    }    public void bind()    {        string sqlstr = "select top 10 * from 飞狐工作室";        sqlcon = new SqlConnection(strCon);        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);        DataSet myds = new DataSet();        sqlcon.Open();        myda.Fill(myds, "飞狐工作室");        GridView1.DataSource = myds;        GridView1.DataKeyNames = new string[] { "身份证号码" };        GridView1.DataBind();        sqlcon.Close();    }//这里就是解决方案    protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)    {        switch (e.Row.RowType)        {            case DataControlRowType.Header:                //第一行表头                TableCellCollection tcHeader = e.Row.Cells;                tcHeader.Clear();                tcHeader.Add(new TableHeaderCell());                tcHeader[0].Attributes.Add("rowspan", "3"); //跨Row                tcHeader[0].Attributes.Add("bgcolor", "white");                tcHeader[0].Text = "";                tcHeader.Add(new TableHeaderCell());                //tcHeader[1].Attributes.Add("bgcolor", "Red");                tcHeader[1].Attributes.Add("colspan", "6"); //跨Column                tcHeader[1].Text = "全部信息";                //第二行表头                tcHeader.Add(new TableHeaderCell());                tcHeader[2].Attributes.Add("bgcolor", "DarkSeaGreen");                tcHeader[2].Text = "身份证号码";                tcHeader.Add(new TableHeaderCell());                tcHeader[3].Attributes.Add("bgcolor", "LightSteelBlue");                tcHeader[3].Attributes.Add("colspan", "2");                tcHeader[3].Text = "基本信息";                tcHeader.Add(new TableHeaderCell());                tcHeader[4].Attributes.Add("bgcolor", "DarkSeaGreen");                tcHeader[4].Text = "福利";                tcHeader.Add(new TableHeaderCell());                tcHeader[5].Attributes.Add("bgcolor", "LightSteelBlue");                tcHeader[5].Attributes.Add("colspan", "2");                tcHeader[5].Text = "联系方式";                //第三行表头                tcHeader.Add(new TableHeaderCell());                tcHeader[6].Attributes.Add("bgcolor", "Khaki");                tcHeader[6].Text = "身份证号码";                tcHeader.Add(new TableHeaderCell());                tcHeader[7].Attributes.Add("bgcolor", "Khaki");                tcHeader[7].Text = "姓名";                tcHeader.Add(new TableHeaderCell());                tcHeader[8].Attributes.Add("bgcolor", "Khaki");                tcHeader[8].Text = "出生日期";                tcHeader.Add(new TableHeaderCell());                tcHeader[9].Attributes.Add("bgcolor", "Khaki");                tcHeader[9].Text = "薪水";                tcHeader.Add(new TableHeaderCell());                tcHeader[10].Attributes.Add("bgcolor", "Khaki");                tcHeader[10].Text = "家庭住址";                tcHeader.Add(new TableHeaderCell());                tcHeader[11].Attributes.Add("bgcolor", "Khaki");                tcHeader[11].Text = "邮政编码";                break;        }    }}前台：    
          
      
    
       
                   
                                
                                 
                                     
                                      
                                      
                                      
                                       
                                      
                                      
                                                            
                                 
                                 
                                 
                                 
                             
                
       
    
      
16.GridView突出显示某一单元格（例如金额低于多少，分数不及格等）效果图：解决方案：主要是绑定后过滤 GridView1.DataBind();        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)        {            DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];            string score = Convert.ToString(mydrv["起薪"]);            if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等            {                GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;            }        }        sqlcon.Close();全部后台代码：using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;using System.Drawing;public partial class Default7 : System.Web.UI.Page{    SqlConnection sqlcon;    SqlCommand sqlcom;    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            bind();        }    }    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)    {        GridView1.EditIndex = e.NewEditIndex;        bind();    }    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)    {        sqlcon = new SqlConnection(strCon);        string sqlstr = "update 飞狐工作室 set 姓名='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"            + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";        sqlcom = new SqlCommand(sqlstr, sqlcon);        sqlcon.Open();        sqlcom.ExecuteNonQuery();        sqlcon.Close();        GridView1.EditIndex = -1;        bind();    }    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)    {        GridView1.EditIndex = -1;        bind();    }    public void bind()    {        string sqlstr = "select top 10 * from 飞狐工作室";        sqlcon = new SqlConnection(strCon);        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);        DataSet myds = new DataSet();        sqlcon.Open();        myda.Fill(myds, "飞狐工作室");        GridView1.DataSource = myds;        GridView1.DataKeyNames = new string[] { "身份证号码" };        GridView1.DataBind();        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)        {            DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];            string score = Convert.ToString(mydrv["起薪"]);            if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等            {                GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;            }        }        sqlcon.Close();    }}前台代码：    
          
      
    
       
                   
                                
                                 
                                     
                                      
                                      
                                      
                                       
                                      
                                      
                                                            
                                 
                                 
                                 
                                 
                             
                
       
    
      
 17.GridView加入自动求和求平均值小计效果图：解决方案：    private double sum = 0;//取指定列的数据和，你要根据具体情况对待可能你要处理的是intprotected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)    {               if (e.Row.RowIndex >= 0)        {            sum += Convert.ToDouble(e.Row.Cells[6].Text);        }        else if (e.Row.RowType == DataControlRowType.Footer)        {            e.Row.Cells[5].Text = "总薪水为：";            e.Row.Cells[6].Text = sum.ToString();            e.Row.Cells[3].Text = "平均薪水为：";            e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();                   }    }后台全部代码：using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;using System.Drawing;public partial class Default7 : System.Web.UI.Page{    SqlConnection sqlcon;    SqlCommand sqlcom;    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            bind();        }    }    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)    {        GridView1.EditIndex = e.NewEditIndex;        bind();    }    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)    {        sqlcon = new SqlConnection(strCon);        string sqlstr = "update 飞狐工作室 set 姓名='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"            + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";        sqlcom = new SqlCommand(sqlstr, sqlcon);        sqlcon.Open();        sqlcom.ExecuteNonQuery();        sqlcon.Close();        GridView1.EditIndex = -1;        bind();    }    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)    {        GridView1.EditIndex = -1;        bind();    }    public void bind()    {        string sqlstr = "select top 5 * from 飞狐工作室";        sqlcon = new SqlConnection(strCon);        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);        DataSet myds = new DataSet();        sqlcon.Open();        myda.Fill(myds, "飞狐工作室");        GridView1.DataSource = myds;        GridView1.DataKeyNames = new string[] { "身份证号码" };        GridView1.DataBind();        sqlcon.Close();    }    private double sum = 0;//取指定列的数据和    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)    {               if (e.Row.RowIndex >= 0)        {            sum += Convert.ToDouble(e.Row.Cells[6].Text);        }        else if (e.Row.RowType == DataControlRowType.Footer)        {            e.Row.Cells[5].Text = "总薪水为：";            e.Row.Cells[6].Text = sum.ToString();            e.Row.Cells[3].Text = "平均薪水为：";            e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();                   }    }}前台：唯一的花头就是设置ShowFooter="True" ，否则默认表头为隐藏的！
                              
                               
                                   
                                    
                                    
                                    
                                    
                                    
                                    
                                                          
                               
                               
                               
                               
                           
        18.GridView数据导入Excel/Excel数据读入GridView效果图：解决方案：页面增加一个按钮，单击事件添加如下方法：protected void Button1_Click(object sender, EventArgs e)    {        Export("application/ms-excel", "学生成绩报表.xls");    }    private void Export(string FileType, string FileName)    {        Response.Charset = "GB2312";        Response.ContentEncoding = System.Text.Encoding.UTF7;        Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());        Response.ContentType = FileType;        this.EnableViewState = false;        StringWriter tw = new StringWriter();        HtmlTextWriter hw = new HtmlTextWriter(tw);        GridView1.RenderControl(hw);        Response.Write(tw.ToString());        Response.End();    }//如果没有下面方法会报错类型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内    public override void VerifyRenderingInServerForm(Control control)    {    }还有由于是文件操作所以要引入名称空间IO和Text后台代码：using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;using System.Drawing;using System.IO;using System.Text;public partial class Default7 : System.Web.UI.Page{    SqlConnection sqlcon;    SqlCommand sqlcom;    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            bind();        }    }       public void bind()    {        string sqlstr = "select top 5 * from 飞狐工作室";        sqlcon = new SqlConnection(strCon);        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);        DataSet myds = new DataSet();        sqlcon.Open();        myda.Fill(myds, "飞狐工作室");        GridView1.DataSource = myds;        GridView1.DataKeyNames = new string[] { "身份证号码" };        GridView1.DataBind();        sqlcon.Close();    }    protected void Button1_Click(object sender, EventArgs e)    {        Export("application/ms-excel", "学生成绩报表.xls");    }    private void Export(string FileType, string FileName)    {        Response.Charset = "GB2312";        Response.ContentEncoding = System.Text.Encoding.UTF7;        Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());        Response.ContentType = FileType;        this.EnableViewState = false;        StringWriter tw = new StringWriter();        HtmlTextWriter hw = new HtmlTextWriter(tw);        GridView1.RenderControl(hw);        Response.Write(tw.ToString());        Response.End();    }    public override void VerifyRenderingInServerForm(Control control)    {    }   }前台：
                              
                               
                                   
                                    
                                    
                                    
                                    
                                    
                                                          
                               
                               
                               
                               
                           
              
      读取Excel数据的代码：这个很简单的private DataSet CreateDataSource()    {        string strCon;        strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";        OleDbConnection olecon = new OleDbConnection(strCon);        OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strCon);        DataSet myds = new DataSet();        myda.Fill(myds);        return myds;    }    protected void Button1_Click(object sender, EventArgs e)    {        GridView1.DataSource = CreateDataSource();        GridView1.DataBind();    }
     

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