This blog post will demonstrate the process of integrating mutually exclusive checkboxes within an ASP.NET GridView. Additionally, I will provide further details and insights to enhance your understanding of this topic.
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="MutuallyexGrid.aspx.cs" Inherits="MutuallyexGrid" %>
<!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>Untitled Page</title>
<script type="text/javascript" language="javascript">
function uncheckOthers(id)
{
var elm = document.getElementsByTagName('input');
for(var i = 0; i < elm.length; i++)
{
if(elm.item(i).id.substring(id.id.lastIndexOf('_')) == id.id.substring(id.id.lastIndexOf('_')))
{
if( elm.item(i).type == "checkbox" && elm.item(i)!=id)
elm.item(i).checked = false;
}
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" OnRowDataBound="GridView1_RowDataBound"
CellPadding="4" ForeColor="#333333" GridLines="None">
<Columns>
<asp:TemplateField HeaderText="Select">
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Contact Name" HeaderText="Name" />
</Columns>
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<EditRowStyle BackColor="#999999" />
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
</asp:GridView>
</div>
</form>
</body>
</html>
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class MutuallyexGrid : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
GridView1.DataSource = _sampleData;
GridView1.DataBind();
}
}
public DataTable _sampleData
{
get
{
DataTable dt = (DataTable)Session["DataTable"];
if (dt == null)
{
dt = new DataTable();
dt.Columns.Add(new DataColumn("Contact Name", typeof(string)));
dt.Columns.Add(new DataColumn("Company Name", typeof(string)));
dt.Columns.Add(new DataColumn("City", typeof(string)));
dt.Columns.Add(new DataColumn("Country", typeof(string)));
dt.Rows.Add(new object[] { "Maria Anders", "Alfreds Futterkiste", "Berlin", "Germany" });
dt.Rows.Add(new object[] { "Ana Trujillo", "Emparedados y helados ", "México D.F.", "Mexico" });
dt.Rows.Add(new object[] { "Antonio Moreno", "Antonio Moreno TaquerÃa", "México D.F.", "Mexico" });
Session["DataTable"] = dt;
}
return dt;
}
set
{
Session["DataTable"] = value;
}
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
try
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
string strScript = "uncheckOthers(" + ((CheckBox)e.Row.Cells[0].FindControl("CheckBox1")).ClientID + ");";
((CheckBox)e.Row.Cells[0].FindControl("CheckBox1")).Attributes.Add("onclick", strScript);
}
}
catch (Exception Ex)
{
//report error
}
}
}