asp.net gridview單選按鈕

Question

http://www.asp.net/data-access/tutorials/adding-a-gridview-column-of-radio-buttons-cs

請參考上面的鏈接。如何以編程方式選擇RadioButton？

Answer 1

void SetPrimaryContactID() 
{ 
    if (grvCustomerContact.Rows.Count > 0) 
    { 
     foreach (GridViewRow gr in grvCustomerContact.Rows) 
     { 
      Label l = (Label)gr.FindControl("lblContacts_ID"); 
      bool s = hd_PrimaryContact.Value.Equals(l.Text); 
      if (hd_PrimaryContact.Value.Equals(l.Text)) 
      { 
       Literal output = (Literal)gr.FindControl("RadioButtonMarkup"); 
       output.Text = string.Format(@"<input type='radio' name='PrimaryConactGroup'" + @"id='RowSelector{0}' value='{0}' checked='checked' />", gr.RowIndex); 
      } 
     } 

    } 
}