Custom Attributes for WPF Applications

WPF applications use the predefined automation property AutomationProperties.AutomationId to specify a stable identifier for the WPF control as follows:

<Window x:Class="Test.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="350" Width="525">
  <Grid>
    <Button AutomationProperties.AutomationId="AID_buttonA">The
Button</Button>
  </Grid>
</Window> 

Silk4NET automatically uses this property for identification in the locator. WPF application locators look like the following:

/WPFWindow[@caption='MainWindow']//WPFButton[@automationId='AID_buttonA']