Asp. NET checkbox check box control Use _ Base application

We can use two types of ASP.net controls to add a check box to a Web forms page: A separate CheckBox control or a CheckBoxList control. Both controls provide a way for the user to enter Boolean data (TRUE or FALSE, yes or no).

Here we use the checkbox alone and look at its properties first

Property	Description	. NET
AutoPostBack	Specify whether the form will be returned to the server immediately after the Checked property has changed. The default is False.	1.0
CausesValidation	Specify whether to perform validation when clicking the Button control.	2.0
Checked	Specify whether the check box is selected.	1.0
Inputattributes	The collection of property names and values used by the Input element of the CheckBox control.	2.0
Labelattributes	A collection of property names and values used by the Label element of the CheckBox control.	2.0
Runat	Specify that the control is a server control. Must be set to "server".	1.0
Text	The text label associated with the check box.	1.0
TextAlign	The alignment of the text label associated with the check box. (right or left)	1.0
ValidationGroup	The group of controls to validate when a CheckBox control is sent back to the server.	2.0
OnCheckedChanged	The name of the function to be executed when the Checked property is changed.

Let's do a simple example to illustrate

Foreground code:

<%@ Page language= "C #" autoeventwireup= "true" codefile= "CheckBox.aspx.cs" inherits= "Webcontrols_checkbox"%> <! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">  

Background code:

Using System;
Using System.Collections.Generic;
Using System.Web;
Using System.Web.UI;
Using System.Web.UI.WebControls;

public partial class WebControls_CheckBox:System.Web.UI.Page
{
 protected void Page_Load (object sender, EventArgs e)
 {

 }
 protected void btnSubmit_Click (object sender, EventArgs e)
 {
 Lblstate.text = String. Empty;
 if (chksport.checked)
 {
  Lblstate.text = Lblstate.text + chksport.text;
 }
 if (chksport2.checked)
 {
  if (lblState.Text.Length = = 0)
  {
  lblstate.text = Chksport2.text;
  }
  Else
  {
  Lblstate.text = Lblstate.text + "," + Chksport2.text;
  }}
 if (chksport3.checked)
 {
  if (lblState.Text.Length = = 0)
  {
  lblstate.text = Chksport2.text;
  }
  Else
  {
  Lblstate.text = Lblstate.text + ', ' + Chksport3.text;
  }
 }
 }
}

Operation Effect: