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how-to-detect-when-text-in-a-textbox-has-changed.md

This example shows one way to use the xref:System.Windows.Controls.Primitives.TextBoxBase.TextChanged event to execute a method whenever the text in a xref:System.Windows.Controls.TextBox control has ...
GitHub

how-to-add-a-watermark-to-a-textbox.md

The following example shows how to aid usability of a <xref:System.Windows.Controls.TextBox> by displaying an explanatory background image inside of the <xref:System.Windows.Controls.TextBox> until ...
heise online

GUI frameworks for .NET – Part 2: WPF and WinUI 3

After the first part of this series dealt with Windows Forms, we will now look at Windows Presentation Foundation (WPF) and Windows UI Library 3 (WinUI 3). Both GUI frameworks are based on XAML ...