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Merged
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Aug 5, 2025
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Update main-thread.md #2969

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Update main-thread.md
JohanSmarius Aug 4, 2025
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Merge branch 'main' into patch-7
jfversluis Aug 5, 2025
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2 changes: 1 addition & 1 deletion docs/platform-integration/appmodel/main-thread.md
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Expand Up @@ -33,7 +33,7 @@ With the <xref:Microsoft.Maui.ApplicationModel.MainThread> class, you can determ

:::code language="csharp" source="../snippets/shared_1/AppModelPage.xaml.cs" id="runcode_test_thread":::

This check isn't necessary. `BeginInvokeOnMainThread` itself tests if the current code is running on the main thread or not. If the code is running on the main thread, `BeginInvokeOnMainThread` just calls the provided method directly. If the code is running on a secondary thread, `BeginInvokeOnMainThread` invokes the provided method on the main thread. Therefore, if the code you run is the same, regardless of the main or secondary thread, simply call `BeginInvokeOnMainThread` without checking if it's required. There is negligible overhead in doing so.
For this scenario, this check isn't necessary. `BeginInvokeOnMainThread` itself tests if the current code is running on the main thread or not. If the code is running on the main thread, `BeginInvokeOnMainThread` just calls the provided method directly. If the code is running on a secondary thread, `BeginInvokeOnMainThread` invokes the provided method on the main thread. Therefore, if the code you run is the same, regardless of the main or secondary thread, simply call `BeginInvokeOnMainThread` without checking if it's required. There is negligible overhead in doing so.

The only reason you would need to check the `IsMainThread` property is if you have branching logic that does something different based on the thread.

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