| title | description | ms.date | ms.custom | dev_langs | helpviewer_keywords | ms.assetid | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
How to: Extract the Text Content from a RichTextBox |
Learn how to extract the Text Content from a RichTextBox. |
03/30/2017 |
devdivchpfy22 |
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f13c093f-1a05-45b3-ac8f-c9ea5e4a11c5 |
This example shows how to extract the contents of a xref:System.Windows.Controls.RichTextBox as plain text.
The following Extensible Application Markup Language (XAML) code describes a named xref:System.Windows.Controls.RichTextBox control with simple content.
[!code-xamlRichTextBoxSnippets#_RTB_XAML]
The following code implements a method that takes a xref:System.Windows.Controls.RichTextBox as an argument, and returns a string representing the plain text contents of the xref:System.Windows.Controls.RichTextBox.
The method creates a new xref:System.Windows.Documents.TextRange from the contents of the xref:System.Windows.Controls.RichTextBox, using the xref:System.Windows.Documents.FlowDocument.ContentStart%2A and xref:System.Windows.Documents.FlowDocument.ContentEnd%2A to indicate the range of the contents to extract. xref:System.Windows.Documents.FlowDocument.ContentStart%2A and xref:System.Windows.Documents.FlowDocument.ContentEnd%2A properties each return a xref:System.Windows.Documents.TextPointer, and are accessible on the underlying FlowDocument that represents the contents of the xref:System.Windows.Controls.RichTextBox. xref:System.Windows.Documents.TextRange provides a Text property, which returns the plain text portions of the xref:System.Windows.Documents.TextRange as a string.
[!code-csharpRichTextBoxSnippets#_RTB_StringFrom] [!code-vbRichTextBoxSnippets#_RTB_StringFrom]