A terrible example of usage of Application.DoEvents()

Hi team,
I'm moving this from here: https://github.com/dotnet/dotnet-api-docs.pl-pl/issues/2

@wojciechsura commented 8 hours ago
This is not how UI should be updated during execution of asynchronous task :(
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- ID: 94fb6a12-9a26-6c22-543a-c827659638ad
- Version Independent ID: 5fe323f8-f152-4fbb-c628-07096f92f8b3
- Content: [BackgroundWorker.IsBusy Property (System.ComponentModel)](https://docs.microsoft.com/pl-pl/dotnet/api/system.componentmodel.backgroundworker.isbusy?view=netframework-4.8#feedback)
- Content Source: [xml/System.ComponentModel/BackgroundWorker.xml](https://github.com/dotnet/dotnet-api-docs.pl-pl/blob/live/xml/System.ComponentModel/BackgroundWorker.xml)
- Product: dotnet-api
- Technology: system.componentmodel
- GitHub Login: @dotnet-bot
- Microsoft Alias: dotnetcontent