How to: Add RadioButtonList Web Server Controls to a Web Forms Page
You can add a radio button to a Web Forms page in two ways:
By adding a RadioButtonList Web server control and then adding individual list items to the control.
By adding an individual RadioButton Web server control.
This topic addresses how to add a RadioButtonList Web server control and then add individual list items to the control. For information about adding an individual RadioButton Web server control, see How to: Add RadioButton Web Server Controls to a Web Forms Page.
For details about the differences between these approaches, see RadioButton and RadioButtonList Web Server Controls Overview.
When you use a RadioButtonList control, you add a single control to the page. Adding items to the control is a separate process that depends on whether you will display a static list in the control or a list generated dynamically at run time.
To add a RadioButtonList Web server control to a Web Forms page
From the Standard tab of the Toolbox, drag a RadioButtonList control onto the page.
Optionally, in the Properties window, change the orientation of the caption by setting the TextAlign property.
Optionally, change the layout of the control to display multiple columns. For details, see How to: Set Layout in a RadioButtonList Web Server Control.
Create items for the control in one of the following ways:
By creating them as individual items. For details, see How to: Add Items in List Web Server Controls.
By binding data to the control. For details, see How to: Populate List Web Server Controls from a Data Source.