#84 – Store Reusable Objects in a Resource Dictionary

Assume that you want to set the background color for two buttons to the same color.  You could specify a SolidColorBrush for each button’s Background property :

 <Button Name="btnOne" Content="Dum" Height="23" Width="75" Click="Button_Click">
     <Button.Background>
         <SolidColorBrush Color="AliceBlue"/>
     </Button.Background>
 </Button>
 <Button Name="btnTwo" Content="Dee" Height="23" Width="75" >
     <Button.Background>
         <SolidColorBrush Color="AliceBlue"/>
     </Button.Background>
 </Button>

In doing this, you created two different brushes.  But you could have been more efficient by creating a single brush, storing it in the resource dictionary of the parent window and then referencing the common brush when specifying the buttons’ Background property :

 <Window.Resources>
     <SolidColorBrush x:Key="aliceBrush" Color="AliceBlue"/>
 </Window.Resources>
 <StackPanel Name="spContainer">
     <Button Name="btnOne" Background="{StaticResource aliceBrush}" Content="Dum" Height="23" Width="75" Click="Button_Click" />
     <Button Name="btnTwo" Background="{StaticResource aliceBrush}" Content="Dee" Height="23" Width="75" />
 </StackPanel>

We created the common brush in the window’s resource dictionary–specified by the Resources property–and then referred to it in each Button using the StaticResource markup extension and a key.

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About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

One Response to #84 – Store Reusable Objects in a Resource Dictionary

  1. Pingback: #148 – Property Values Set Using Expressions Overwrite the Base Value « 2,000 Things You Should Know About WPF

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