CheckBox Control:

This Control is used to provide the selection of two or more options from the given group of options

Properties of checkbox Control: 

                                          

1.     Auto Post Back: (options:[True/False(Default)])                                                       2.     Checked   :(options:[True/False(Default)])      
                                  

AutoPostBack: 

• When set to true page request is submitted as PostBack to server, when default Event that CheckedChanged is fired
• When set to false page request will not be submitted to the  server when default Event that CheckedChanged is fired

CheckedProperty:

• Stores value of true, when checkbox is activated otherwise stores false

Default Event of checkbox:

• If CheckedChanged this Event is fired when CheckBox is activated otherwise stores false

Example with Checkbox Control:

Create a New WebPage ,Design the web page

•     Set the following properties for TextBox1:-

          ID                      ---      txtSample

•    Set the following properties forCheckBox1:- 

DI                         ----              chkPlaying

Text                      ----              Playing

AutoPostBack       ----              True

• Set the following properties forCheckBox1:-

ID                         ----              chkPlaying

Text                      ----              Playing

AutoPostBack      ----              True

Goto Source and write the following Code

protected void btnSubmit_Click(object sender, EventArgs e) {         string S = txtSample.Text + "  Hobbies Are    ";         if (chkBrowsing.Checked == true)             S = S + chkBrowsing.Text + "  ";         if (chkPlaying.Checked == true)             S = S + chkPlaying.Text;         lblDisplay.Text = S;  }

Run the WebPage & Check