051 WPF TextBox defaults to undo limit of 100.md

51: WPF TextBox defaults to undo limit of 100

Scope

Edge

Version Introduced

4.5

Source Analyzer Status

Planned

Change Description

In .NET 4.5, the default undo limit for a WPF textbox is 100 (as opposed to being unlimited in .NET 4.0)

• Quirked
• Build-time break

Recommended Action

If an undo limit of 100 is too low, the limit can be set explicitly with the TextBox's UndoLimit property

Affected APIs

• T:System.Windows.Controls.TextBox

Category

Windows Presentation Foundation (WPF)

More information