In C#, how do you send a refresh/repaint message to a WPF grid or canvas?
Question
How do you send a refresh message to a WPF grid or canvas?
In other words, I have noticed while in debug mode, I can write code that sends a line to the display and then, if that line is not right, I can adjust it -- but the previous line is still there. Now, the code I am writing sends information to the display based on what the user clicks. So this must mean that the display is not refreshed each time a new set of lines and boxes and text goes to the grid or canvas in WPF.
Using C# code, how do you send a refresh/repaint message to a WPF grid or canvas?
Solution
Refresh update WPF Controls like Winforms
public static class ExtensionMethods
{
private static Action EmptyDelegate = delegate() { };
public static void Refresh(this UIElement uiElement)
{
uiElement.Dispatcher.Invoke(DispatcherPriority.Render, EmptyDelegate);
}
}
OTHER TIPS
I'm used to winforms so this is only a guess, but look for an Invalidate()
method.
Licensed under: CC-BY-SA with attribution
Not affiliated with StackOverflow