910211 - how can i have ResizeEnd event in Silverlight?

[hamidi]

hi
regarding to the solution given by Jeffrey Tan in the following post:

http://bytes.com/topic/c-sharp/answers/280000-there-done-resizing-event

i've this question that when my application is a Silverlight application what can i do? WndProc is not available to be overridden, is it?

[Aimee Bailey]

I am sure there are many other ways to do it, but the first thing that came to mind when I saw this question, was to use a simple timer that monitors weather the control is resizing, or has finished resizing. Here is the crude example of how you could achieve this:

    public partial class UserControl1 : UserControl
    {
        delegate void FinishedResizeHandler(Size finalSize);
        event FinishedResizeHandler FinishedResizing;
        DispatcherTimer ResizeMonitor;
        Size PreviousSize;

        public UserControl1()
        {
            InitializeComponent();
            SetupFinishResizing(500);
            FinishedResizing += UserControl1_FinishedResizing;
        }

        void UserControl1_FinishedResizing(Size finalSize)
        {
            label1.Content = finalSize.ToString();
        }

        void SetupFinishResizing(int delayInMs)
        {
            // Setup a simple timer.
            ResizeMonitor = new DispatcherTimer();
            ResizeMonitor.Interval = TimeSpan.FromMilliseconds(delayInMs);
            ResizeMonitor.Tick += delegate(object sender, EventArgs e)
            {
                // if the control has stopped resizing.
                if (RenderSize == PreviousSize)
                {
                    ResizeMonitor.Stop();
                    if (FinishedResizing != null) FinishedResizing(PreviousSize);
                }
            };

            // Catch the size changed event.
            SizeChanged += delegate(object sender, SizeChangedEventArgs e)
            {
                ResizeMonitor.Start();
                PreviousSize = e.NewSize;
            };
        }
    }

Note that I used a dispatcher timer for threading convenience, and a label within the user control to display the final size. Hope this helps you on the path to finding a solution!

Aimee Bailey

[RhysW]

Edit: Already answered, duplicate question http://bytes.com/topic/c-sharp/answe...esizeend-event