How to call and use OnCheckedChanged Event in RadioButton in Asp.Net

1.File-> New-> Website->  ASP.NET Web Site(Visual C#) -> Ok

(Now You will see a Default.aspx page. To create your own page->click on dropdown list below Edit->click Add new item->Select Web Form->click Add)


 2.ToolBox-> Double Click on Label(or drag and drop Label on Design view)-> Right click on Label->Select Properties->change Text properties to  Select your Gender?

3. ToolBox-> Double Click on RadioButton->Right click on RadioButton->Select properties->Change text properties to Male->AutoPostBack properties to True->GroupName properties to RadioButtonControl

  ToolBox-> Double Click on RadioButton->Right click on RadioButton->Select properties->Change text properties to Female->AutoPostBack properties to True->GroupName properties to RadioButtonControl

4.ToolBox-> Double Click on Label-> Right click on Label->Select Properties->change Text properties to
 Blank(delete the label text so when you  run nothing will show)
 Your Design window should look like this

5.Right click on Male RadioButton(RadioButton1)->properties->Click Events->Double click on CheckedChanged events(to get the code behind)

And write this code:

6..Right click on Female RadioButton(RadioButton2)->properties->Click Events->on CheckedChanged events DropDownList select RadioButton_CheckedChanged(it is the event name which we created on our first RadioButton's CheckedChanged Event)

7.Click F5 to run your project.

After Running the project

After clicking Male RadioButton

After Clicking Female RadioButton