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<%@ Page Language="C#" AutoEventWireup="true" %>

<!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E章】" + 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.le