35 lines
1.1 KiB
Markdown
35 lines
1.1 KiB
Markdown
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## Multi-line ASP.Net TextBox spacing changed when using AntiXSSEncoder
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### Scope
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Minor
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### Version Introduced
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4.5
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### Source Analyzer Status
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Available
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### Change Description
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In .NET Framework 4.0, extra lines were inserted between lines of a multi-line text box on postback, if using the `AntiXSSEncoder`. In .NET Framework 4.5, those extra line breaks are not included, but only if the web app is targeting .NET 4.5
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- [x] Quirked
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- [ ] Build-time break
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### Recommended Action
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Be aware that 4.0 web apps retargeted to .NET 4.5 may have multi-line text boxes improved to no longer insert extra line breaks. If this is not desirable, the app can have the old behavior when running on .NET Framework 4.5 by targeting the .NET Framework 4.0.
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### Affected APIs
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* Not detectable via API analysis
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### Category
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ASP.NET
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[More information](http://connect.microsoft.com/VisualStudio/feedback/details/748052/textbox-with-multiline-textmode-adds-additional-linebreak-to-the-output)
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<!--
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### Notes
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Encoder is set in a config file. See bug repro for example.
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-->
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<!-- breaking change id: 92 -->
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