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docs-desktop/dotnet-desktop-guide/framework/wpf/controls/change-selection-in-a-richtextbox-programmatically.md
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Change Selection in a RichTextBox Programmatically 03/30/2017 devdivchpfy22 Learn how to change selection in a RichTextBox programmatically.
csharp
vb
changing selections in a text box [WPF]
changing selections in a RichTextBox [WPF]
f1213205-1ad7-4cd2-b115-460173cc5aa3

Change Selection in a RichTextBox Programmatically

This example shows how to programmatically change the current selection in a xref:System.Windows.Controls.RichTextBox. This selection is the same as if the user had selected the content by using the user interface.

Code example for a RichTextBox control

The following [!INCLUDETLA#tla_xaml] code describes a named xref:System.Windows.Controls.RichTextBox control with simple content.

[!code-xamlRichTextBoxMiscSnippets_snip#ChangeSelectionProgrammaticalyExampleWholePage]

Code example to select text from a RichTextBox

The following code programmatically selects some arbitrary text when the user clicks inside the xref:System.Windows.Controls.RichTextBox.

[!code-csharpRichTextBoxMiscSnippets_snip#ChangeSelectionProgrammaticalyCodeExampleWholePage] [!code-vbRichTextBoxMiscSnippets_snip#ChangeSelectionProgrammaticalyCodeExampleWholePage]

See also