This article will show you how you can detect the checkbox
check inside gridview on button click on asp.net using c#.net.
Some of my previous articles are as follows: Auto
Generated Row No GridView In Asp.Net Using C#.Net, Get
Distinct Value From DataTable Using C#.Net and VB.Net, Page
Count Display in GridView Footer In Asp.Net Using C#.Net, GridView
Bind Using DataTable With Paging In Asp.Net Using C#.Net, Single
RadioButton Selection in GridView In Asp.Net Using C#.Net, Bind
and Validate GridView TextBox Value by jQuery In Asp.Net Using C#, Bind
and Validate GridView TextBox Value by RequiredFieldValidator In Asp.Net Using
C#, Populate
Data in GridView on DropdownList Selected Role in Asp.net Using C#.net, Search
and Display Data In GridView From Database Table In Asp.Net Using C#.Net, Read
XML File Data Using Linq Query and Add in DataTable to Bind GridView in Asp.net
Using C#.Net, Bind
& Search XML File Data and Display in GridView in Asp.net Using C#.Net,
Search
GridView Record on Button Click By Using C#.Net in Asp.Net.
So for this article first we will create a new asp.net application and add the below code into the aspx page.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication1.WebForm1"
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD
XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Detect
Checked CheckBox Indise GridView on Button Click In Asp.Net Using C#.Net
</title>
</head>
<body>
<form id="form1" runat="server">
<table width="100%" cellpadding="4" cellspacing="4">
<tr>
<td align="left">
<asp:GridView ID="GridView1" runat="server" Width="100%" AutoGenerateColumns="False"
AllowPaging="True">
<Columns>
<asp:TemplateField HeaderText="">
<ItemTemplate>
<asp:CheckBox ID="CheckBox1"
runat="server"
/>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<asp:Label ID="lblName"
runat="server"
Text='<%# Eval("Name") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Address"
HeaderText="Address"
/>
<asp:BoundField DataField="UserType"
HeaderText="UserType"
/>
</Columns>
</asp:GridView>
</td>
</tr>
</table>
<asp:Label ID="lblSelectedName" runat="server"
Style="color:
#FF0000" Text=""></asp:Label>
<br />
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Submit" />
</form>
</body>
</html>
|
In this I have added gridview and a button control and label
control. So when user click on button checkbox selected row name we will
display on the label control.
Now please check the code which we will used for managing
the checkbox control detection inside gridview.
using System;
using System.Data.SqlClient;
using System.Data;
using System.Web.UI.WebControls;
using System.Collections;
namespace WebApplication1
{
public partial class WebForm1 : System.Web.UI.Page
{
protected
void Page_Load(object
sender, EventArgs e)
{
if
(!IsPostBack)
{
GetDistinctValue();
}
}
private
void GetDistinctValue()
{
SqlConnection
con = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["con"].ToString());
try
{
DataTable
objdt = new DataTable();
string
query = "select * from UserDetail;";
SqlDataAdapter
da = new SqlDataAdapter(query,
con);
con.Open();
da.Fill(objdt);
con.Close();
if
(objdt.Rows.Count > 0)
{
GridView1.DataSource =
objdt;
GridView1.DataBind();
}
}
catch
{
con.Close();
}
}
protected
void Button1_Click(object
sender, EventArgs e)
{
string
SelectedName = "";
foreach
(GridViewRow item in
GridView1.Rows)
{
CheckBox
checkbox1 = (CheckBox)item.FindControl("CheckBox1");
if
(checkbox1.Checked == true)
{
Label
lblName = (Label)item.FindControl("lblName");
SelectedName =
SelectedName + lblName.Text + ",";
}
}
lblSelectedName.Text =
SelectedName;
}
}
}
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In above code I have first bind the grid view and then on
button click event I have detected checkbox control and on the bases of
selection I have detected the name of label control to check the name to
display.
Have a look of the code to detect the checkbox checked.
protected void Button1_Click(object sender, EventArgs
e)
{
string
SelectedName = "";
foreach
(GridViewRow item in
GridView1.Rows)
{
CheckBox
checkbox1 = (CheckBox)item.FindControl("CheckBox1");
if
(checkbox1.Checked == true)
{
Label
lblName = (Label)item.FindControl("lblName");
SelectedName =
SelectedName + lblName.Text + ",";
}
}
lblSelectedName.Text = SelectedName;
}
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Now we have done the application to check the output.
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