microsoft / microsoft/WPF-Samples
DataTemplatingIntro NullReferenceException
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issue-type-bug
- Dominant language
- C#
- Stars
- 5.7k
- Forks
- 3.3k
- Avg merge
- 12d 8h
- Merged PRs (30d)
- 2
Description
MainWindow.xaml design window displays NullRreferenceException after this line added:
<local:TaskListDataTemplatedSelector x:Key="MyDataTemplateSelector"/>
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with MainWindow.xaml and the added TaskListDataTemplatedSelector resource. Reproduce the NullReferenceException in the design window and trace which part of that selector or its setup is unavailable there. Done means the DataTemplatingIntro design window opens without the exception.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp
- Domain
- desktop
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100