ASP.NET: Using FindControl Recursively.

FindControl can be a bit of a pain, especially as it doesn't contain recursive support; that being, you need to know the direct parent of an object before you can start your search.

I have attached a method which is useful, especially when creating generic methods for groups of objects where the parent is unknown.

        /// <summary>

        /// Finds a Control recursively. Note finds the first match and exists

        /// </summary>

        /// <param name="RootControl">Root control to start looking in.</param>

        /// <param name="ControlToFind">The control to find within it recursively.</param>

        /// <returns>The control if it exists.</returns>

        public Control FindControlRecursive(Control RootControl, string ControlToFind)

        {

            if (RootControl.ID == ControlToFind)

                return RootControl;

            foreach (Control Ctl in RootControl.Controls)

            {

                Control FoundCtl = FindControlRecursive(Ctl, ControlToFind);

                if (FoundCtl != null)

                    return FoundCtl;

            }

            return null;

        }