public static void DecryptControlsValue(string[] controlIDs, Control container)
        {
            foreach (string ctrlID in controlIDs)
            {
                Control ctrl = container.FindControlByID(ctrlID, true);

                if (ctrl != null)
                {
                    string ctrlValue = GetControlValue(ctrl);

                    if (string.IsNullOrEmpty(ctrlValue) == false)
                    {
                        SetControlValue(ctrl, DecryptValue(ctrlValue));
                    }
                }
            }
        }
		internal UploadProgressContentEventArgs(Control container)
		{
			this.AfterFileSelectorContainer = container.FindControlByID("afterFileSelector", true);
		}