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Add breaking changes for WPF
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‎docs/core/compatibility/3.0.md‎

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***
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## WPF
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| Title | Type of change |
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|----------------------------------------------------------------------------------------------------------|-------------------|
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| [Drag-and-drop behavior changed when dragging text from a text editor control](wpf/3.0/drag-and-drop.md) | Behavioral change |
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***
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## See also
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- [What's new in .NET Core 3.0](../whats-new/dotnet-core-3-0.md)

‎docs/core/compatibility/7.0.md‎

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| [Obsoletions and warnings](windows-forms/7.0/obsolete-apis.md) | ✔️ | ❌ |
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| [Some APIs throw ArgumentNullException](windows-forms/7.0/apis-throw-argumentnullexception.md) | ❌ | ✔️ |
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## WPF
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| Title | Type of change |
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|----------------------------------------------------------------------------------------|-------------------|
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| [Restored drag-and-drop operations behavior on text editors](wpf/7.0/drag-and-drop.md) | Behavioral change |
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## XML and XSLT
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| Title | Binary compatible | Source compatible |

‎docs/core/compatibility/wpf.md‎

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---
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title: WPF breaking changes
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description: Lists the breaking changes in Windows Presentation Foundation for .NET
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ms.date: 11/04/2024
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---
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# Breaking changes in Windows Presentation Foundation
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Windows Presentation Foundation (WPF) support was added to .NET Core 3.0, and has continued to evolve with the latest releases of .NET. This article lists the breaking changes for WPF.
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The following breaking changes are documented on this page:
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| Breaking change | Version introduced |
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| - | :-: |
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| [Restored drag-and-drop operations behavior on text editors](wpf/7.0/drag-and-drop.md) | 7.0 |
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| [Drag-and-drop behavior changed when dragging text from a text editor control](wpf/3.0/drag-and-drop.md) | 3.0 |
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## .NET 7
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- [Restored drag-and-drop operations behavior on text editors](wpf/7.0/drag-and-drop.md)
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## .NET Core 3.0
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- [Drag-and-drop behavior changed when dragging text from a text editor control](wpf/3.0/drag-and-drop.md)

‎docs/core/compatibility/wpf/3.0/drag-and-drop.md‎

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---
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title: "Breaking change: 'Text drag-and-drop operations'"
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description: Learn about a breaking change in Windows Presentation Foundation (WPF) and .NET Core 3.0. Drag-and-drop behavior changed when dragging text from a text editor control.
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ms.date: 11/4/2024
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ai-usage: ai-assisted
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---
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# .NET Core 3.0 altered drag-and-drop behavior on text editors
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.NET Core 3.0 introduced a change in how text editor controls create a <xref:System.Windows.DataObject?displayProperty=fullName> when dragging text to another control. The change disabled autoconversion, causing the operation to keep the data as <xref:System.Windows.DataFormats.Text?displayProperty=nameWithType> or <xref:System.Windows.DataFormats.UnicodeText?displayProperty=nameWithType> instead of converting it to <xref:System.Windows.DataFormats.StringFormat?displayProperty=nameWithType>.
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## Version introduced
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.NET Core 3.0
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## Previous behavior
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The data type on <xref:System.Windows.DataObject?displayProperty=fullName> when dragging text from a text editor control was <xref:System.Windows.DataFormats.StringFormat?displayProperty=nameWithType>.
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## New behavior
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The data type on <xref:System.Windows.DataObject?displayProperty=fullName> when dragging text from a text editor control is <xref:System.Windows.DataFormats.Text?displayProperty=nameWithType> or <xref:System.Windows.DataFormats.UnicodeText?displayProperty=nameWithType>.
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## Type of breaking change
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This change is a [behavioral change](../../categories.md#behavioral-change).
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## Reason for change
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The change was unintentional.
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## Recommended action
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This change was reverted in .NET 7. Upgrade to .NET 7 or later.
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## Affected APIs
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- <xref:System.Windows.DataObject?displayProperty=fullName>

‎docs/core/compatibility/wpf/7.0/drag-and-drop.md‎

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---
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title: "Breaking change: 'Revert behavior with text drag-and-drop operations'"
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description: Learn about a breaking change in Windows Presentation Foundation (WPF) and .NET 7. Drag-and-drop behavior was reverted to .NET Framework behavior behavior when dragging text from a text editor control.
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ms.date: 11/4/2024
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ai-usage: ai-assisted
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---
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# .NET 7 restored drag-and-drop operations behavior on text editors
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.NET 7 addresses a regression introduced in .NET Core 3.0 concerning drag operations in text editor controls. This update restores the behavior to match that of the .NET Framework, ensuring consistency in how data is set during drag operations.
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## Version introduced
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.NET 7
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## Previous behavior
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The data type on <xref:System.Windows.DataObject?displayProperty=fullName> when dragging text from a text editor control is <xref:System.Windows.DataFormats.Text?displayProperty=nameWithType> or <xref:System.Windows.DataFormats.UnicodeText?displayProperty=nameWithType>.
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## New behavior
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The data type on <xref:System.Windows.DataObject?displayProperty=fullName> when dragging text from a text editor control is <xref:System.Windows.DataFormats.StringFormat?displayProperty=nameWithType>.
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## Type of breaking change
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This change is a [behavioral change](../categories.md#behavioral-change).
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## Reason for change
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The change is made to match the behavior of the .NET Framework, ensuring consistency and expected behavior across different .NET versions.
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## Recommended action
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Upgrade older projects to the latest version of .NET to restore the behavior.
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## Affected APIs
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- <xref:System.Windows.DataObject?displayProperty=fullName>

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