To simplify what I am doing: I have a control and I want to set it's visible property and value on seperate threads; both will be using a database transaction. When I run the code, both threads execute correctly but the page doesn't show the changes in the properties. I know I am missing some logic as I am new to this. Here is my code:

 private delegate void VisibleDelegate(object sender, EventArgs e);

 private delegate void CalculateDelegate(object sender, EventArgs e);

PageLoad

{

textbox txt = new textbox();

txt.TextChanged += new EventHandler(Calculate);

txt.TextChanged += new EventHandler(VisibleSwitch);

}

        private void VisibleSwitch(object sender, EventArgs e)

            {

                VisibleDelegate ad = new VisibleDelegate(MyClass.VisibilitySwitch);

                AsyncCallback CallbackHandler = new AsyncCallback(MyCallbackMethodVis);

                ad.BeginInvoke(sender, e, CallbackHandler, null);

            }

        private void Calculate(object sender, EventArgs e)

            {

                CalculateDelegate ad = new CalculateDelegate(MyClass.SetCalculate);

                AsyncCallback CallbackHandler = new AsyncCallback(MyCallbackMethodCalc);

                ad.BeginInvoke(sender, e, cphPanels, CallbackHandler, null);

            }

        public void MyCallbackMethodVis(IAsyncResult ar)

        {

            AsyncResult result = (AsyncResult)ar;

            AsyncCustomDelegate gsld = (AsyncCustomDelegate)result.AsyncDelegate;

            gsld.EndInvoke(ar);

        }

        public void MyCallbackMethodCalc(IAsyncResult ar)

        {

            AsyncResult result = (AsyncResult)ar;

            result.AsyncDelegate.GetType();

            CalculateDelegate gsld = (CalculateDelegate)result.AsyncDelegate;

            gsld.EndInvoke(ar);

        }

Thank you in advance for helping.