Introduction to RadioButton Control in Asp.net

Below is the introduction to RadioButton Control in asp.net :

  • RadioButton control is the option button that can be checked on/off.
  • Use a radio button when you want the user to choose only one option.When you want the user to choose all appropriate options, use a check box.
  • When a user clicks on a radio button, it becomes checked, and all other radio buttons with same group become unchecked.
  • All RadioButtons in the same group must have the same GroupName property.

Properties Of RadioButton Control

Below is the description of the properties of RadioButton control :-

Introduction to RadioButton Control in Asp.net

Adding RadioButton Control to WebForm

  • Drag & Drop the RadioButton control from the Toolbox task pane to your Web Page.
  • Set properties for the control in the Properties task pane.

Introduction to RadioButton Control in Asp.net

Use RadioButton Control in Asp.net

  • You can use the GroupName property when only one selection is possible from a list of available options.When this property is set, only one RadioButton in the specified group can be selected at a time.
  • If you want to perform operation on selection of RadioButton then you will set the AutoPostBack to true.

Example:-

When user wants to select his/her favorite color.

  • Design Web Form (WebForm1.aspx page).

Introduction to RadioButton Control in Asp.net

  • Generate Code in Code-Behind File (WebForm1.aspx.cs page).

Introduction to RadioButton Control in Asp.net

  • Output: Press “F5” or “Ctrl + F5”. Select Your Favorite Color.

Introduction to RadioButton Control in Asp.net


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