!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

script runat="server">
  // 計算數據，完全可以從數據看取得
  ICollection CreateDataSource()
  {
    System.Data.DataTable dt =new System.Data.DataTable();
    System.Data.DataRow dr;
    dt.Columns.Add(new System.Data.DataColumn("序號", typeof(System.String)));
    dt.Columns.Add(new System.Data.DataColumn("學生姓名", typeof(System.String)));
    dt.Columns.Add(new System.Data.DataColumn("語文", typeof(System.Decimal)));
    dt.Columns.Add(new System.Data.DataColumn("數學", typeof(System.Decimal)));
    dt.Columns.Add(new System.Data.DataColumn("英語", typeof(System.Decimal)));
    dt.Columns.Add(new System.Data.DataColumn("計算機", typeof(System.Decimal)));

    for (int i =0; i 8; i++)
    {
      System.Random rd =new System.Random(Environment.TickCount * i); ;
      dr = dt.NewRow();
      dr[0] = i.ToString();
      dr[1] ="【孟子】"+ i.ToString();
      dr[2] = System.Math.Round(rd.NextDouble() *100, 2);
      dr[3] = System.Math.Round(rd.NextDouble() *100, 2);
      dr[4] = System.Math.Round(rd.NextDouble() *100, 2);
      dr[5] = System.Math.Round(rd.NextDouble() *100, 2);
      dt.Rows.Add(dr);
    }
    System.Data.DataView dv =new System.Data.DataView(dt);
    return dv;
  }

  protected void Page_Load(object sender, EventArgs e)
  {
    if (!IsPostBack)
    {

      GridView2.DataSource = GridView1.DataSource = CreateDataSource();
      GridView2.DataBind();
      GridView1.DataBind();
    }
  }

  protected void Button1_Click(object sender, EventArgs e)
  {
    Ret1.Text ="";
    foreach (GridViewRow gvr in GridView1.Rows)
    {
      CheckBox ch = (CheckBox)gvr.FindControl("ItemCheckBox");
      if (ch.Checked)
      {
        Ret1.Text +="li>GridView1 您選擇的是（鍵值）："+ GridView1.DataKeys[gvr.DataItemIndex].Value.ToString();
      }
    }
  }

  protected void Button2_Click(object sender, EventArgs e)
  {
    Ret2.Text ="";
    foreach (GridViewRow gvr in GridView2.Rows)
    {
      CheckBox ch = (CheckBox)gvr.FindControl("ItemCheckBox");
      if (ch.Checked)
      {
        Ret2.Text +="li>GridView2 您選擇的是（鍵值）："+ GridView2.DataKeys[gvr.DataItemIndex].Value.ToString();
      }
    }
  }

  protected void CheckAll(object sender, EventArgs e)
  {
    CheckBox cbx = (CheckBox)sender;
    foreach (GridViewRow gvr in GridView1.Rows)
    {
      CheckBox ch = (CheckBox)gvr.FindControl("ItemCheckBox");
      ch.Checked = cbx.Checked;
    }
  }
/script>

html xmlns="http://www.w3.org/1999/xhtml">
head>
  title>GridView 實現服務器端和客戶端全選的兩種方法/title>

  script type="text/javascript">
  //![CDATA[
  function CheckAll(oCheckbox)
  {
   var GridView2 = document.getElementById("%=GridView2.ClientID %>");
   for(i =1;i GridView2.rows.length; i++)
   {
    GridView2.rows[i].cells[0].getElementsByTagName("INPUT")[0].checked = oCheckbox.checked;
   }
  }

  //]]>
  /script>

/head>
body>
  form id="Form1" runat="server">
    table style="width:800px;font-size:12px;">
      tr valign="top">
        td>
          asp:GridView ID="GridView1" runat="server" Font-Size="12px" BackColor="#FFFFFF"
            GridLines="Both" CellPadding="4" DataKeyNames="序號" AutoGenerateColumns="false">
            HeaderStyle BackColor="#EDEDED" Height="26px"/>
            Columns>
              asp:TemplateField>
                HeaderTemplate>
                  asp:CheckBox ID="CheckBox1" runat="server" Text="全選" AutoPostBack="true" OnCheckedChanged="CheckAll"/>
                /HeaderTemplate>
                ItemTemplate>
                  asp:CheckBox ID="ItemCheckBox" runat="server"/>
                /ItemTemplate>
              /asp:TemplateField>
              asp:BoundField DataField="學生姓名" HeaderText="學生姓名"/>
              asp:BoundField DataField="語文" HeaderText="語文"/>
              asp:BoundField DataField="數學" HeaderText="數學"/>
              asp:BoundField DataField="英語" HeaderText="英語"/>
              asp:BoundField DataField="計算機" HeaderText="計算機"/>
            /Columns>
          /asp:GridView>
          asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="得到選擇的行值"/>
        /td>
        td align="right">
          asp:GridView ID="GridView2" runat="server" Font-Size="12px" BackColor="#FFFFFF"
            GridLines="Both" CellPadding="4" DataKeyNames="序號" AutoGenerateColumns="false">
            HeaderStyle BackColor="#EDEDED" Height="26px"/>
            Columns>
              asp:TemplateField>
                HeaderTemplate>
                  input id="Checkbox2" type="checkbox" onclick="CheckAll(this)" runat="server"/>label>全選/label>
                /HeaderTemplate>
                ItemTemplate>
                  asp:CheckBox ID="ItemCheckBox" runat="server"/>
                /ItemTemplate>
              /asp:TemplateField>
              asp:BoundField DataField="學生姓名" HeaderText="學生姓名"/>
              asp:BoundField DataField="語文" HeaderText="語文"/>
              asp:BoundField DataField="數學" HeaderText="數學"/>
              asp:BoundField DataField="英語" HeaderText="英語"/>
              asp:BoundField DataField="計算機" HeaderText="計算機"/>
            /Columns>
          /asp:GridView>
          asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="得到選擇的行值"/>
        /td>
      /tr>
      tr valign="top">
        td>
          asp:Literal ID="Ret1" runat="server">/asp:Literal>
        /td>
        td align="right">
          asp:Literal ID="Ret2" runat="server">/asp:Literal>
        /td>
      /tr>
    /table>
  /form>
/body>
/html>