Paint Grid background with LinearGradientBrush 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'>
<Grid Name="grid1">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<TextBox VerticalAlignment="Stretch" HorizontalAlignment="Stretch"
TextWrapping="Wrap"
Margin="10,10,13,10" Name="txtQuestion"
FontFamily="Verdana" FontSize="24"
Grid.Row="0" Text="[Place question here.]">
</TextBox>
<Button VerticalAlignment="Top" HorizontalAlignment="Left"
Margin="10,0,0,20" Width="127" Name="cmdAnswer"
Click="cmdAnswer_Click" Grid.Row="1" Content="Ask">
</Button>
<TextBox VerticalAlignment="Stretch" HorizontalAlignment="Stretch"
Margin="10,10,13,10" Name="txtAnswer"
IsReadOnly="True" FontFamily="Verdana" FontSize="24" Foreground="Green"
Grid.Row="2" Text="[Answer will appear here.]">
</TextBox>
<Grid.Background>
<LinearGradientBrush>
<LinearGradientBrush.GradientStops>
<GradientStop Offset="0.00" Color="Yellow" />
<GradientStop Offset="0.50" Color="White" />
<GradientStop Offset="1.00" Color="Purple" />
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Grid.Background>
</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 cmdAnswer_Click(object sender, RoutedEventArgs e)
{
txtAnswer.Text = "asdf";
LinearGradientBrush brush = new LinearGradientBrush();
GradientStop gradientStop1 = new GradientStop();
gradientStop1.Offset = 0;
gradientStop1.Color = Colors.Yellow;
brush.GradientStops.Add(gradientStop1);
GradientStop gradientStop2 = new GradientStop();
gradientStop2.Offset = 0.5;
gradientStop2.Color = Colors.White;
brush.GradientStops.Add(gradientStop2);
GradientStop gradientStop3 = new GradientStop();
gradientStop3.Offset = 1;
gradientStop3.Color = Colors.Purple;
brush.GradientStops.Add(gradientStop3);
grid1.Background = brush;
}
}
}
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