Reference resource in code
<UserControl x:Class='SilverlightApplication3.MainPage'
xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'
xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
xmlns:d='http://schemas.microsoft.com/expression/blend/2008'
xmlns:mc='http://schemas.openxmlformats.org/markup-compatibility/2006'
mc:Ignorable='d'
d:DesignWidth='640'
d:DesignHeight='480'>
<UserControl.Resources>
<LinearGradientBrush x:Key="ButtonFace">
<GradientStop Offset="0.00" Color="Purple" />
<GradientStop Offset="0.50" Color="White" />
<GradientStop Offset="1.00" Color="Yellow" />
</LinearGradientBrush>
</UserControl.Resources>
<Grid x:Name="LayoutRoot" Background="White">
<StackPanel>
<Button Content="Change the Resource" Margin="5"
Click="cmdChange_Click"
Background="{StaticResource ButtonFace}"></Button>
<Button Content="Replace the Resource (not allowed)" Margin="5"
Click="cmdReplace_Click"
Background="{StaticResource ButtonFace}"></Button>
</StackPanel>
</Grid>
</UserControl>
//File: Page.xaml.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
namespace SilverlightApplication3
{
public partial class MainPage : UserControl
{
public MainPage()
{
InitializeComponent();
}
private void cmdChange_Click(object sender, RoutedEventArgs e)
{
LinearGradientBrush brush = (LinearGradientBrush)this.Resources["ButtonFace"];
Color color = brush.GradientStops[0].Color;
brush.GradientStops[0].Color = brush.GradientStops[2].Color;
brush.GradientStops[2].Color = color;
}
private void cmdReplace_Click(object sender, RoutedEventArgs e)
{
SolidColorBrush brush = new SolidColorBrush(Colors.Yellow);
this.Resources["ButtonFace"] = brush;
}
}
}
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