System.Web.UI.WebControls Namespace   RadioButton Class

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Sets or retrieves the name of the group that the radio button belongs to.

Inline	<asp:radiobutton groupname = strName ... >
Script	RadioButton.GroupName [ = strName ]

strName

String specifying The name of the group that the radio button belongs to.

The property is read/write with no default value.

Use the GroupName property to specify a grouping of radio buttons to create a mutually exclusive set of controls. The property can be used when only one selection is possible from a list of available options, as in the case of gender.

When this property is set, only one RadioButton in the specified group can be selected at a time.

The following example illustrates how to set the GroupName property of radio button controls at design time.

<h5>The first president of the United States was:</h5>

   <table>
   <tr><td>
      <asp:RadioButton id = "Radio1" Text = "Abraham Lincoln" 
         GroupName = "choices" runat = "server" /><br>
      <asp:RadioButton id = "Radio2" Text = "Christopher Columbus" 
         GroupName = "choices" runat = "server" /><br>
      <asp:RadioButton id = "Radio3" Text = "George Washington" 
         GroupName = "choices" runat = "server" /><br>
      <asp:RadioButton id = "Radio4" Text = "Robert Plant" 
         GroupName = "choices" runat = "server" /><br>
   </td></tr>
   </table>

   <p><asp:button text = "Submit" onClick = "chkAnswer" runat = "server" />

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RadioButton Members

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