It seems like enum or #define of c++.
Let's look below xaml code,
<Style TargetType="{x:Type Label}"> <Setter Property="FontFamily" Value="Arial" /> <Setter Property="FontSize" Value="10" /> <Setter Property="HorizontalAlignment" Value="Right" /> <Setter Property="FontWeight" Value="Bold" /> </Style> <Style TargetType="{x:Type Button}"> <Setter Property="FontFamily" Value="Arial" /> <Setter Property="FontSize" Value="10" /> <Setter Property="Margin" Value="4" /> </Style>
In the above code, line 2, 3 and line 9, 10 are exactly the same. In case, by means of 'BasedOn' property, the duplicate can be removed.
<Style x:Key="defaultControlStyle" TargetType="{x:Type Control}"> <Setter Property="FontFamily" Value="Arial" /> <Setter Property="FontSize" Value="10" /> </Style> <Style TargetType="{x:Type Label}" BasedOn="{StaticResource defaultControlStyle}"> <Setter Property="HorizontalAlignment" Value="Left" /> <Setter Property="FontWeight" Value="Bold" /> </Style> <Style TargetType="{x:Type Button}" BasedOn="{StaticResource defaultControlStyle}"> <Setter Property="Margin" Value="2" /> </Style>
To begin with, 'defaultControlStyle' is declared as a common style, and then each control style are using by 'BasedOn' property.
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