sqlSubmit | Flink-based sqlSubmit program | SQL Database library

//If Page is with Master Page Add 
  Control form = Master.FindControl("form1");
  Control content1 = form.FindControl("ContentPlaceHolder1"); 
  //and Replace this with content1 in loop. Same with LINQ version

  foreach (Control c in content1.Controls)
 // Here this refers to Page Controls. If page is with MasterPage then first 
 //we need to go to parent container.
 //Let's say all your controls are inside of Panel, then you need to use 
 //panel1.Controls where panel1 is ID of Panel.
            {
            if (c is RadioButtonList)
            {
                if (c.ID.Contains("id"))
                {
                    string FullID = c.ID.ToString();
                }
            }
            }