Does someone else know how to trigger an update in the UI?
How to force Visual Studio to update the UI?
I'm working on this Visual Studio extension, in the code below when the ToggleEnabled()
function is called, it triggers OnToggleEnabled
-> OnToggleEnabledHandler
.
At private void OnToggleEnabledHandler()
these attempts are not working, and the UI is not being updated.
With this, I'm trying to make the LayoutChangedHandler function get called.
How I could "force" Visual Studio to update its UI?
-Walkthrough-
A shortcut sent to VS triggers the Execute(AsyncPackage package) function, and it triggers the ToggleEnabled() function:
{
private readonly IAdornmentLayer _layer;
private readonly IWpfTextView _view;
private readonly VariableExpander _variableExpander;
private string _contentTypeName;
public static bool Enabled { get; set; }
public static event Action OnToggleEnabled;
static ImageAdornmentManager()
{
Enabled = true;
}
public static void ToggleEnabled()
{
ThreadHelper.ThrowIfNotOnUIThread();
Enabled = !Enabled;
UIMessage.Show($"Comment: {Enabled}. Scroll editor window to update.");
OnToggleEnabled?.Invoke();
}
public ImageAdornmentManager(IWpfTextView view)
{
_view = view;
_layer = view.GetAdornmentLayer("ImageCommentLayer");
_view.LayoutChanged += LayoutChangedHandler;
_contentTypeName = view.TextBuffer.ContentType.TypeName;
_view.TextBuffer.ContentTypeChanged += contentTypeChangedHandler;
OnToggleEnabled += OnToggleEnabledHandler;
}
private void OnToggleEnabledHandler()
{
Console.Write("OnToggleEnabledHandler");
_view.VisualElement.InvalidateMeasure();
_view.VisualElement.InvalidateArrange();
_view.VisualElement.InvalidateVisual();
_view.LayoutChanged += (sender, e) => { };
}
}
I have posted this same question on StackOverflow.
2 answers
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Philip Schoeman 0 Reputation points
2024-07-22T21:51:44.65+00:00 I see it is an old post, but for those that are looking for a way to force an update in the UI. The only way I could find, was to measure it, it triggers a layout refresh:
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync(Package.DisposalToken); WpfTextView.VisualElement.Measure(WpfTextView.VisualElement.RenderSize); var size = WpfTextView.VisualElement.DesiredSize;