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Find control recursively via extension method

/ Published in: C#
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And usage:

protected void Page_Load(object sender, EventArgs e)

{

Label theLabel = form1.FindControlR("ControlToFind") as Label;

if (theLabel != null)

{

theLabel.Text = "Found it!";

}

}

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  1. public static class Extensions
  2. 	{
  3. 		/// <summary>
  4. 		/// Searches recursively in this control to find a control with the name specified.
  5. 		/// </summary>
  6. 		/// <param name="root">The Control in which to begin searching.</param>
  7. 		/// <param name="id">The ID of the control to be found.</param>
  8. 		/// <returns>The control if it is found or null if it is not.</returns>
  9. 		public static Control FindControlR(this Control root, string id)
  10. 		{
  11. 			System.Web.UI.Control controlFound;
  12. 			if (root != null)
  13. 			{
  14. 				controlFound = root.FindControl(id);
  15. 				if (controlFound != null)
  16. 				{
  17. 					return controlFound;
  18. 				}
  19.  
  20. 				foreach (Control c in root.Controls)
  21. 				{
  22. 					controlFound = c.FindControlR(id);
  23.  
  24. 					if (controlFound != null)
  25. 					{
  26. 						return controlFound;
  27. 					}
  28. 				}
  29. 			}
  30.  
  31. 			return null;
  32. 		}
  33. 	}

URL: http://aspadvice.com/blogs/name/archive/2008/03/31/Creating-a-Recursive-FindControl-Extension-Method.aspx

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