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XAML Errors and Help

The Windows Presentation Foundation (WPF) Designer for Visual Studio provides a full Extensible Application Markup Language (XAML) compiler and language service. You edit XAML in XAML view. If the XAML is incorrect, errors are displayed in the Error List window. For more information, see Error List Window.

Error List

The Error List window displays errors which occur when loading the XAML. You load XAML by opening a XAML file with the File menu, by double-clicking a XAML file in Solution Explorer, or by pasting XAML into XAML view.

Help Integration

The Error List window provides full integration with the Visual Studio Help system. Select an error in the Error List window, and press F1 to see the corresponding Help topic. For more information, see Walkthrough: Interpreting XAML Errors in the WPF Designer

XAML Loader and Error Messages

The Help topic for each WPF Designer error message describes the nature of the XAML load error. The following table shows the categories of XAML errors. For more information, see XAML Parser Architecture

XAML Loading Phase

Error message

XML Syntax Verification

This error is raised when the XAML file is not a well-formed XML document.

XAML Syntax Verification

This error is raised when the file is a valid XML document, but is not a well-formed XAML document.

Model and Object Instantiation

This error is raised when the file is a well-formed XAML document, but contains one or more type mismatches.

See Also

Tasks

Walkthrough: Editing XAML in the WPF Designer

Walkthrough: Interpreting XAML Errors in the WPF Designer

Concepts

Split View: Viewing the WPF Design Surface and XAML at the Same Time

XAML Parser Architecture

XAML Overview

Reference

Error List Window

Other Resources

Error Message Reference for the WPF Designer

WPF Designer

Using Resources