Add checkbox to existing checkbox col. header of wpfdatagrid

try this ..

http://dotnetgenetics.blogspot.in/2012/09/add-checkbox-in-wpf-datagrid.html
http://www.devcurry.com/2011/04/wpf-4-datagrid-delete-multiple-rows.html

Default.aspx code

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>





   
   


   

   

   
   
            
   
   
   
   
   
   
   
   
   
 

   

   

Default.aspx.vb code

Imports System.Data.SqlClient
Imports System.Data
Partial Class _Default
    Inherits System.Web.UI.Page
    Dim strConnString As String = System.Configuration.ConfigurationManager.ConnectionStrings.Item("ConnectionString").ToString()
    Dim con As New SqlConnection(strConnString)
    Dim str As String
    Dim com As SqlCommand
    Dim sqlda As SqlDataAdapter
    Dim ds As DataSet
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        con.Open()
        str = "select * from student"
        com = New SqlCommand(Str, con)
        Dim reader As SqlDataReader
        reader = com.ExecuteReader()
        GridView1.DataSource = reader
        GridView1.DataBind()
        con.Close()
    End Sub
End Class

http://www.c-sharpcorner.com/uploadfile/vipinakhil/checkun-check-checkboxes-items-in-Asp-Net-datagrid-using-javascript/default.aspx