1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Web;
5 using System.Web.UI;
6 using System.Web.UI.WebControls;
7 using System.Data;
8 using System.Data.SqlClient;
9 using System.Configuration;
10
11 public partial class _Default : System.Web.UI.Page
12 {
13 string constr = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
14 protected void Page_Load(object sender, EventArgs e)
15 {
16 SqlConnection conn = new SqlConnection(constr);
17 conn.Open();
18 string sql = "select * from student";
19 SqlDataAdapter da = new SqlDataAdapter(sql, conn);
20 DataSet ds = new DataSet();
21 da.Fill(ds);
22 GridView1.DataSource = ds;
23 GridView1.DataBind();
24 }
25 protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
26 {
27 for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
28 {
29 CheckBox chk = (CheckBox)GridView1.Rows[i].FindControl("chkCheck");
30 if (chkAll.Checked == true)
31 {
32 chk.Checked = true;
33 }
34 else
35 {
36 chk.Checked = false;
37 }
38 }
39 }
40 }
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chkCheck" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<configuration>
<connectionStrings >
<add name="constr" connectionString="server=.sqlexpress;database=db2016;uid=sa;pwd=123;"/>
</connectionStrings>
<system.web>
<compilation debug="true" targetFramework="4.0" />
</system.web>
</configuration>
