JetBrains Rider 2020.2 Help

Coding Assistance in XAML

Most of JetBrains Rider's coding assistance features are also supported in XAML. You can find the detailed information on these features in the corresponding topics of the Coding Assistance section.

In this topic, you can find some examples of using coding assistance features in XAML.

Syntax highlighting

JetBrains Rider highlights classes, fields, properties, events, and so on with different colors, so that they can be distinguished easily.

JetBrains Rider: Syntax highlighting in XAML
You can establish a custom color scheme. For more information, see Colors and fonts of IDE text.

Color assistance

JetBrains Rider highlights color usages with corresponding color and shows additional information on the tooltip. You can also press Alt+Enter on a highlighted color usage, choose Pick color from palette and define a color using a visual palette.

JetBrains Rider: Color assistance in XAML

Inlay hints

Inlay hints are available in XAML for markup property names and DataContext, as well as for margins and paddings.

You can toggle the following hints for XAML on the Environment | Editor | Inlay Hints page of JetBrains Rider settings Ctrl+Alt+S:

Show implicit attribute names

Whether to show inlay hints for implicit attribute names, for example:

JetBrains Rider: Inlay hints in XAML for implicit attribute names
Show thickness argument hints

Whether to show inlay hints for Thckness values (in the arguments of Margin, Padding, and so on) to see the correspondence between arguments and values:

JetBrains Rider: Inlay hints in XAML for margins and padding
Show missing Grid.Row/Column hints

Whether to show hints for missing Grid.Row and Grid.Column arguments:

JetBrains Rider: Inlay hints in XAML for missing Grid.Row/Column attributes
Show implicit attribute names

Whether to show hints for DataContext types in bindings:

JetBrains Rider: Inlay hints in XAML for DataContext

Typing assistance

JetBrains Rider provides a couple of useful features that can save your efforts on typing. So you write more code with less keystrokes.

  • synchronous tag editing— any change of the opening tag is simultaneously applied to the closing tag and vice versa

  • smart slash— as soon as you type the slash at the end of an opening tag, the tag is automatically converted to the empty one

Code completion

JetBrains Rider provides a full set of code completion features as well. So you can complete tags:

JetBrains Rider: Code completion in XAML
And attributes in XAML:
JetBrains Rider: CCode completion in XAML
Moreover, JetBrains Rider suggests appropriate symbols and actions depending on the context:
JetBrains Rider: Code completion in XAML
Also, you can complete closing tags. JetBrains Rider provides the list of tags that are not closed at the current caret position.

Examples of context actions

JetBrains Rider provides a set of context actions that target XAML code. You can find the full list of these actions in the Editor | Context actions | XAML page of JetBrains Rider Settings. If necessary, you can also disable some of the actions using this page.

As soon as a context action becomes available for the current caret position, JetBrains Rider displays the corresponding action indicator ThemedIcon ContextAction Screen Gray png to the left of the caret. Sometimes however, JetBrains Rider provides several contextually available features for the current caret position. In this case, the action indicator corresponding to the action with the highest priority is shown, and all other actions only appear when you expand the action list by clicking on the action indicator or pressing Alt+Enter Context actions have the lowest priority, therefore, they often appear at the bottom of the action list.

Here are some examples of context actions for XAML:

Convert attribute to nested element

If you want to convert an attribute to a nested element, use this context action.

JetBrains Rider: Convert attribute to nested element context action in XAML

After applying this context action, the attribute is converted to a child tag with the same value, so that you can provide a more complex value for the property.

JetBrains Rider: Convert attribute to nested element context action in XAML

Convert tag to an attribute

If the value of a property is simple, there is no need to have it in a separate tag, so you can convert it to an attribute using this context action.

JetBrains Rider: 'Convert tag to an attribute' context action in XAML

After applying this context action, the tag is converted to the attribute.

JetBrains Rider: 'Convert tag to an attribute' context action in XAML
Last modified: 06 November 2020