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feat: add generic constraint to fix null reference issue.

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This commit is contained in:
Dong Bin
2025-07-08 15:18:41 +08:00
parent e8dff305aa
commit 0323a873d5
1 changed files with 3 additions and 2 deletions
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5
src/Ursa/Common/VisualHelpers.cs
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@@ -1,13 +1,14 @@
using Avalonia; using Avalonia;
using Avalonia.Controls;
using Avalonia.VisualTree; using Avalonia.VisualTree;
namespace Ursa.Common; namespace Ursa.Common;
public static class VisualHelpers public static class VisualHelpers
{ {
public static T? GetContainerFromEventSource<T>(this Visual? source) public static T? GetContainerFromEventSource<T>(this Visual? source) where T: Control
{ {
var item = source.GetSelfAndVisualAncestors().OfType<T>().FirstOrDefault(); var item = source?.GetSelfAndVisualAncestors().OfType<T>().FirstOrDefault();
return item; return item;
} }
} }