how to use checkbox in datagrid using asp.net with csharp code

Otherwise, use this code:

<%@ Page Language="vb" Src="ChkBoxDataGrid.aspx.vb" Inherits="DotNetJohn.ChkBoxDataGrid" %>

ChkBoxDataGrid

AutoGenerateColumns="False"

BorderColor="#999999"

BorderStyle="None"

BorderWidth="1px"

BackColor="White"

CellPadding="3"

GridLines="Vertical">

Text='<%# DataBinder.Eval(Container.DataItem,"CompanyName") %>'

runat="server" />

Text='<%# DataBinder.Eval(Container.DataItem,"CustomerID") %>'

Runat="server" />

Runat="server"

Font-Name="Verdana"

Font-Size="10px" />

Imports System.Data

Imports System.Data.SqlClient

Imports System.Configuration

Imports System.Web.UI.WebControls

Namespace DotNetJohn

Public Class ChkBoxDataGrid : Inherits System.Web.UI.Page

Protected btnShow As Button

Protected dtgCusts As DataGrid

Protected lblSelections As Label

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

If Not IsPostBack Then

btnShow.Attributes.Add("onClick", "javascript:return confirm('Are you sure you want to delete these rows?')")

BindTheData

End If

End Sub

Sub BindTheData

Dim objConn As SqlConnection

Dim objCmd As SqlCommand

objConn = New SqlConnection(ConfigurationSettings.AppSettings("NorthwindConnection"))

Dim strSql As String

strSql = "SELECT Top 10 CustomerID, CompanyName, ContactName, " _

& "ContactTitle, City, Country, Phone FROM Customers"

Try

objCmd = New SqlCommand(strSql, objConn)

objConn.Open

dtgCusts.DataSource = objCmd.ExecuteReader()

dtgCusts.DataBind()

Catch

Finally

If objConn.State = ConnectionState.Open Then

objConn.Close()

objConn.Dispose()

End If

End Try

End Sub

Sub ShowSelections(sender As System.Object, e As System.EventArgs)

Dim dgItem As DataGridItem

Dim chkSelected As CheckBox

Dim strCompanyName As String

Dim strCustomerID As String

lblSelections.Text = "
Fooled Ya! The following rows were marked for deletion, "

lblSelections.Text += "but not actually deleted:

"

For Each dgItem in dtgCusts.Items

chkSelected = dgItem.FindControl("chkSelection")

If chkSelected.Checked Then

strCompanyName = CType(dgItem.FindControl("lblCompanyName"), Label).Text

strCustomerID = CType(dgItem.FindControl("lblCustomerId"), Label).Text

lblSelections.Text += "Company Name: " & strCompanyName & " | "

lblSelections.Text += "Customer ID: " & strCustomerID & "
"

End If

End Sub

End Class

End Namespace

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Akkiraju Ivaturi14y ago
Otherwise, use this code:
<%@ Page Language="vb" Src="ChkBoxDataGrid.aspx.vb" Inherits="DotNetJohn.ChkBoxDataGrid" %>

ChkBoxDataGrid

AutoGenerateColumns="False"
BorderColor="#999999"
BorderStyle="None"
BorderWidth="1px"
BackColor="White"
CellPadding="3"
GridLines="Vertical">

Text='<%# DataBinder.Eval(Container.DataItem,"CompanyName") %>'
runat="server" />

Text='<%# DataBinder.Eval(Container.DataItem,"CustomerID") %>'
Runat="server" />

Runat="server"
Font-Name="Verdana"
Font-Size="10px" />

Imports System.Data
Imports System.Data.SqlClient
Imports System.Configuration
Imports System.Web.UI.WebControls

Namespace DotNetJohn

Public Class ChkBoxDataGrid : Inherits System.Web.UI.Page
Protected btnShow As Button
Protected dtgCusts As DataGrid
Protected lblSelections As Label

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Not IsPostBack Then
btnShow.Attributes.Add("onClick", "javascript:return confirm('Are you sure you want to delete these rows?')")
BindTheData
End If
End Sub

Sub BindTheData
Dim objConn As SqlConnection
Dim objCmd As SqlCommand
objConn = New SqlConnection(ConfigurationSettings.AppSettings("NorthwindConnection"))
Dim strSql As String
strSql = "SELECT Top 10 CustomerID, CompanyName, ContactName, " _
& "ContactTitle, City, Country, Phone FROM Customers"
Try
objCmd = New SqlCommand(strSql, objConn)
objConn.Open
dtgCusts.DataSource = objCmd.ExecuteReader()
dtgCusts.DataBind()
Catch
Finally
If objConn.State = ConnectionState.Open Then
objConn.Close()
objConn.Dispose()
End If
End Try
End Sub

Sub ShowSelections(sender As System.Object, e As System.EventArgs)
Dim dgItem As DataGridItem
Dim chkSelected As CheckBox
Dim strCompanyName As String
Dim strCustomerID As String

lblSelections.Text = "
Fooled Ya! The following rows were marked for deletion, "
lblSelections.Text += "but not actually deleted:

"
For Each dgItem in dtgCusts.Items
chkSelected = dgItem.FindControl("chkSelection")
If chkSelected.Checked Then
strCompanyName = CType(dgItem.FindControl("lblCompanyName"), Label).Text
strCustomerID = CType(dgItem.FindControl("lblCustomerId"), Label).Text
lblSelections.Text += "Company Name: " & strCompanyName & " | "
lblSelections.Text += "Customer ID: " & strCustomerID & "
"
End If
Next
End Sub

End Class

End Namespace
Akkiraju Ivaturi14y ago
You can use the following article:
http://www.c-sharpcorner.com/uploadfile/vipinakhil/checkun-check-checkboxes-items-in-Asp-Net-datagrid-using-javascript/