MarkUpExtension In WPF

MarkUpExtension

MarkupExtension resolves value of a property at the runtime. These are dynamic placeholders for attribute values in XAML. They are surrounded by curly braces (i.e {}) like StaticResource NormalBackgorundBrush}”.

The first identifier within a pair of curly braces is the name of the extension.

Some built-in MarkUpExtension are given below.

• Binding - For binding the values of two properties.
• TemplateBinding - For binding a control template to dependency property of control.
• DynamicResource - For auto updating lookup of the resource entry.
• StaticResoure - For one time lookup of the resource entry.
• X:Null - For returning null.
• X:Static - For resolving value of static property.

Example

Now, if you type text into textbox, as the text property changes, the binding mark up extension automatically updates the content of the label.