Fix Dashboard auto-refresh: async loop, tab close, legend duplication#839
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erikdarlingdata merged 1 commit intodevfrom Apr 14, 2026
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…gend duplication Replace DispatcherTimer with async Task.Delay loop to prevent priority starvation under heavy UI load. Don't cancel the loop on Unloaded (WPF fires Unloaded on tab switch/close, not just control destruction). Catch OperationCanceledException from SQL queries without killing the loop. Skip auto-refresh ticks while a full refresh is in progress to prevent concurrent chart rendering that duplicates legends. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
Unloaded— WPF fires this on tab switch/close, not just destructionOperationCanceledExceptionfrom SQL queries without killing the loopTest plan
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