Here we will see how to Check/uncheck all
CheckBoxes within a GridView in ASP.NET. To do that we create a asp.net form
with GridView control and two Button control on the form. When we click Button
checked all the Checkbox will be checked (Mark as tick) and click on the second
Button Unchecked all the checkboxes will be unchecked.
Now creating a article table in the SQL server
database. The table looks like the below.
Figure1
Now Create a web application in asp. net.
Drag and drop a GridView control and two Button
control on the Form.
Figure2.
.aspx code
<div>
<asp:GridView ID="GridView2" runat="server">
<Columns>
<asp:TemplateField ShowHeader="false">
<ItemTemplate>
<asp:CheckBox ID="chkid" runat="server" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<br />
<asp:Button ID="Button1" runat="server" onclick="Button1_Click"
Text="Check " />
<asp:Button ID="Button2" runat="server" Text="Uncheck "
onclick="Button2_Click" />
</div>
.CS code
Imports
System.Data.SqlClient
Public Class WebForm1
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal
sender As Object,
ByVal e As
System.EventArgs)
Handles Me.Load
If Not
IsPostBack Then
Dim con As New SqlConnection("Data
Source=(local); uid=sa; pwd=Password$2; database=master")
con.Open()
Dim dt As New SqlDataAdapter("select
* from Article", con)
Dim ds As New DataSet()
dt.Fill(ds,
"article")
GridView2.DataSource = ds
GridView2.DataBind()
End If
End Sub
Protected Sub Button1_Click(ByVal
sender As Object,
ByVal e As EventArgs) Handles
Button1.Click
CheckState(True)
End Sub
Private Sub CheckState(ByVal
p As Boolean)
For Each row
As GridViewRow In GridView2.Rows
Dim chkcheck As CheckBox =
DirectCast(row.FindControl("chkid"),
CheckBox)
chkcheck.Checked =
p
Next
End Sub
Protected Sub Button2_Click(ByVal
sender As Object,
ByVal e As EventArgs) Handles
Button2.Click
CheckState(False)
End Sub
End Class
Now run the application and test it.
Figure3
Now Click on the Check Button.
Figure4
Now click on the uncheck Button to uncheck all the checkbox.
Figure5