What is checkbox in asp.net?
A Checkbox control are used to display a check box that allows the user to select a true or false condition.
Checkbox control inherited from :
Object->Control->WebControl->Checkbox
The following example demonstrates how to use CheckBox Control to indicate whether discount apply or not on given amount.
Create a web page and add the following code :
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table style="padding:1rem;">
<tr>
<td>
<b> Orignal amount :</b>
</td>
<td>
1500 Rs.
</td>
</tr>
<tr>
<td>
<b> 10% Discount</b>
</td>
<td>
<asp:CheckBox ID="chkBox" runat="server" OnCheckedChanged="OnCheckedChanged_Clicked" AutoPostBack="true" />
</td>
</tr>
</table>
<asp:Label ID ="lblAfterDiscount" runat="server"></asp:Label>
</div>
</form>
</body>
</html>
Add following code in cs file
using System;
namespace tutorials
{
public partial class Checkbox : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void OnCheckedChanged_Clicked(object sender,EventArgs e)
{
float orignalAmount = 1500;
if (chkBox.Checked)
{
float Discount = (1500 / 100) * 10;
orignalAmount = orignalAmount - Discount;
lblAfterDiscount.Text = "Amount after 10% discount : "+orignalAmount;
}
else
{
lblAfterDiscount.Text = "Amount without discount : " + orignalAmount;
}
}
}
}
No comments:
Post a Comment