JetBrains Rider 2019.2 Help

Code Inspection and Quick-Fixes in XAML

The key features of JetBrains Rider's code analysis are also supported in XAML. You can find the detailed information on these features in the corresponding topics of the Code Analysis section. In the main topic of the section, you can also find the feature matrix and check what exactly is supported in XAML.

In this topic, you can find some examples of using code analysis features in XAML.

Code Inspection

JetBrains Rider detects various problems in XAML files, such as unresolved symbols, incorrect document structure, unused import directives, and so on. Whenever a problem is encountered, JetBrains Rider highlights it and displays some description in a tooltip. In the example below, JetBrains Rider warns that the namespace alias is not used inside the current file and highlights it in grey:

JetBrains Rider: XAML code highlighting

In the following example, JetBrains Rider highlights a problem with resolving a method inside an event subscription:

JetBrains Rider: XAML code highlighting

The analysis is performed by applying code inspections to the current document or in any specified scope.

To look through the list of available inspections for XAML, open the Editor | Inspection Severity page of JetBrains Rider settings Ctrl+Alt+S, and then expand the XAML node.

Solution-Wide Analysis

JetBrains Rider does not only analyze errors in the current XAML file, but also inspects all files in the whole solution and shows the results of the analysis in the Errors in Solution window. It takes dependencies between files into account and updates the results when you change code.

JetBrains Rider: XAML errors in solution
For more information, see Solution-Wide Analysis.

Examples of Quick-Fixes

Make field private

To change visibility of a field declared in XAML, use the appropriate quick-fix.

JetBrains Rider: Make field private quick-fix in XAML

After applying the quick-fix, the value of FieldModifier is changed to private.

JetBrains Rider: Make field private quick-fix in XAML

Remove redundant namespace alias

To remove a redundant namespace alias, use the appropriate quick-fix.

JetBrains Rider: Remove redundant namespace alias quick-fix in XAML
After applying the quick-fix, the namespace alias directive is removed.
JetBrains Rider: Remove redundant namespace alias quick-fix in XAML

Remove type qualifier

When the type, to which the style should be applied, is specified in the TargetType attribute, there is no need to add a qualifier for each property of the Button class. JetBrains Rider detects such cases and offers the quick-fix.

JetBrains Rider: Remove type qualifier quick-fix in XAML
Last modified: 13 November 2019