System.Web.UI.UpdatePanel.Update C# (CSharp) Method

		public void Update ()
		{
			if (UpdateMode == UpdatePanelUpdateMode.Always)
				throw new InvalidOperationException ("The Update method can only be called on UpdatePanel with ID '" + ID + "' when UpdateMode is set to Conditional.");
			
			_requiresUpdate = true;
		}
	}

        public void OnEvent(object sender, EventArgs e)
        {
            UpdatePanel owner = Owner;

            if (owner != null && owner.UpdateMode != UpdatePanelUpdateMode.Always)
            {
                owner.Update();
            }
        }