[Windows] - Handle Dynamic Updates for CanDrag and AllowDrop in Drag and Drop Gesture #27845
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Hey there @prakashKannanSf3972! Thank you so much for your PR! Someone from the team will get assigned to your PR shortly and we'll get it reviewed. |
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| [Test] | ||
| [Category(UITestCategories.DragAndDrop)] | ||
| public void DragAndDropShouldWorkRunTime() |
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This test is failing on Windows:
at UITest.Appium.HelperExtensions.Wait(Func`1 query, Func`2 satisfactory, String timeoutMessage, Nullable`1 timeout, Nullable`1 retryFrequency) in /_/src/TestUtils/src/UITest.Appium/HelperExtensions.cs:line 2352
at UITest.Appium.HelperExtensions.WaitForAtLeastOne(Func`1 query, String timeoutMessage, Nullable`1 timeout, Nullable`1 retryFrequency) in /_/src/TestUtils/src/UITest.Appium/HelperExtensions.cs:line 2367
at UITest.Appium.HelperExtensions.WaitForElement(IApp app, String marked, String timeoutMessage, Nullable`1 timeout, Nullable`1 retryFrequency, Nullable`1 postTimeout) in /_/src/TestUtils/src/UITest.Appium/HelperExtensions.cs:line 663
at Microsoft.Maui.TestCases.Tests.Issues.Issue12726.DragAndDropShouldWorkRunTime() in /_/src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue12726.cs:line 23
at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
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Thank you for pointing this out! The failure appears to be due to the programmatic drop operation not functioning correctly on the Windows platform in the CI environment, despite working on local machines. I have modified the test accordingly, and it should pass in the next CI run.
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Apr 14, 2025
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…and Drop Gesture (#27845) * Fixed-Drag-And-Drop-RunTime * Modified-Test * Reverted-test * Modified-Code * Reverted-Unwanted-Changes * Modified.
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…and Drop Gesture (dotnet#27845) * Fixed-Drag-And-Drop-RunTime * Modified-Test * Reverted-test * Modified-Code * Reverted-Unwanted-Changes * Modified.
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…and Drop Gesture (dotnet#27845) * Fixed-Drag-And-Drop-RunTime * Modified-Test * Reverted-test * Modified-Code * Reverted-Unwanted-Changes * Modified.
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…and Drop Gesture (dotnet#27845) * Fixed-Drag-And-Drop-RunTime * Modified-Test * Reverted-test * Modified-Code * Reverted-Unwanted-Changes * Modified.
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…and Drop Gesture (dotnet#27845) * Fixed-Drag-And-Drop-RunTime * Modified-Test * Reverted-test * Modified-Code * Reverted-Unwanted-Changes * Modified.
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…and Drop Gesture (#27845) * Fixed-Drag-And-Drop-RunTime * Modified-Test * Reverted-test * Modified-Code * Reverted-Unwanted-Changes * Modified.
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…and Drop Gesture (#27845) * Fixed-Drag-And-Drop-RunTime * Modified-Test * Reverted-test * Modified-Code * Reverted-Unwanted-Changes * Modified.
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…and Drop Gesture (dotnet#27845) * Fixed-Drag-And-Drop-RunTime * Modified-Test * Reverted-test * Modified-Code * Reverted-Unwanted-Changes * Modified.
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Issue Details
Dynamically changing the
CanDragorAllowDropproperty does not enable the expected drag-and-drop functionality when initially set tofalse. As a result, components cannot be made draggable or droppable by updating these properties at runtime.Root Cause
Event subscriptions were only set up during initialization. Changing
CanDragorAllowDropdynamically did not trigger a re-subscription, preventing the component from responding to both drag and drop events.Description of Change
Added
PropertyChangedevent handling forDragGestureRecognizerandDropGestureRecognizerto ensure that drag-and-drop event subscriptions are updated dynamically when the properties change.Issues Fixed
Fixes #12726
Validated the behaviour in the following platforms
Output
Before-Fix.2.mp4
After-Fix.2.mp4