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TextPattern Search and Selection Sample

This sample demonstrates the Microsoft UI Automation TextPattern and TextPatternRange classes.

The sample consists of a WPF client and the choice of a FlowDocumentReader (Windows Presentation Foundation (WPF)) target or a WordPad (Win32) target. The client uses the TextPattern control pattern class and the TextPatternRange class to interact with the text controls in the target.

The functionality demonstrated by the sample includes the ability to search for and select a string of text within the target, manipulate the existing selections within the target by expanding or contracting them to a specific TextUnit, and navigate forward or backward within the text of the target.


Three WPF documents are provided in the Content folder of the TextProvider project.

This sample demonstrates a specific feature of the Windows Presentation Foundation (WPF) and, consequently, does not follow application development best practices. For comprehensive coverage of Windows Presentation Foundation (WPF) and Microsoft .NET Framework application development best practices, refer to the following as appropriate:

Accessibility - Accessibility Best Practices

Security - Windows Presentation Foundation Security

Localization - WPF Globalization and Localization Overview

Download sample

  • Install the Windows Software Development Kit (SDK) and open its build environment command window. On the Start menu, point to All Programs, Microsoft Windows SDK, and then click CMD Shell.

  • Download the sample, usually from the software development kit (SDK) documentation, to your hard disk drive.

  • To build the sample from the build environment command window, go to the source directory of the sample. At the command prompt, type MSBUILD.

  • To build the sample in Microsoft Visual Studio, load the sample solution or project file and then press CTRL+SHIFT+B.

  • To run the compiled sample from the build environment command window, execute the .exe file in the Bin\Debug or Bin\Release folder contained under the sample source code folder.

  • To run the compiled sample with debugging in Visual Studio, press F5.