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POWhat can cause my template to be ignored in this Custom Control
 

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  1. POWhat can cause my template to be ignored in this Custom Control
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    <p><strong>EDIT:</strong> Original title: When I add a custom control based on a timer, my templates are ignored.</p> <p>I'm working on the 70-511 training kit from Microsoft Press, and combined two practice exercises together from chapter 5. </p> <p>The problem is that when I add the custom control to my MainWindow, it runs, but the triggers on the Button template are ignored. When the same control is removed, the triggers are honored. </p> <p>For those who don't have access to the book, and don't feel like analyzing the code, it's a custom control with a label that has a dependency property setup to update on a timer object (once per second) with the current system time.</p> <p>As you might infer from my attached code, the custom control is in a separate assembly referenced by the 5_3 project. </p> <p>I'm a bit stumped on this one. What is causing this? </p> <p>Here is the code:</p> <p>MainWindow.xaml:</p> <pre><code>&lt;Window x:Class="chapter5_3.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" xmlns:my="clr-namespace:chapter5_3CustomControl;assembly=chapter5_4CustomControl"&gt; &lt;Window.Resources&gt; &lt;ControlTemplate TargetType="{x:Type Button}" x:Key="ButtonTemplate"&gt; &lt;Border Name="Bord1" BorderBrush="Olive" BorderThickness="{TemplateBinding BorderThickness}"&gt; &lt;Grid&gt; &lt;Rectangle Name="rect1"&gt; &lt;Rectangle.Fill&gt; &lt;SolidColorBrush x:Name="rosyBrush" Color="RosyBrown"/&gt; &lt;/Rectangle.Fill&gt; &lt;/Rectangle&gt; &lt;ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" /&gt; &lt;/Grid&gt; &lt;/Border&gt; &lt;ControlTemplate.Triggers&gt; &lt;Trigger Property="IsMouseOver" Value="True" &gt; &lt;Trigger.EnterActions&gt; &lt;BeginStoryboard Name="bst2"&gt; &lt;Storyboard AutoReverse="False"&gt; &lt;ColorAnimation Duration="0:0:.3" Storyboard.TargetProperty="Color" Storyboard.TargetName="rosyBrush" &gt; &lt;ColorAnimation.By&gt; &lt;Color A="0" R="100" B="0" G="0"/&gt; &lt;/ColorAnimation.By&gt; &lt;/ColorAnimation&gt; &lt;/Storyboard&gt; &lt;/BeginStoryboard&gt; &lt;/Trigger.EnterActions&gt; &lt;Trigger.ExitActions&gt; &lt;StopStoryboard BeginStoryboardName="bst2" /&gt; &lt;/Trigger.ExitActions&gt; &lt;/Trigger&gt; &lt;Trigger Property="IsPressed" Value="True"&gt; &lt;Trigger.EnterActions&gt; &lt;BeginStoryboard Name="bst1"&gt; &lt;Storyboard&gt; &lt;ThicknessAnimation Storyboard.TargetName="Bord1" Storyboard.TargetProperty="BorderThickness" By=".1" Duration="0:0:.3" /&gt; &lt;ColorAnimation AutoReverse="False" To="DarkRed" Duration="0:0:.3" Storyboard.TargetProperty="Color" Storyboard.TargetName="rosyBrush" /&gt; &lt;/Storyboard&gt; &lt;/BeginStoryboard&gt; &lt;/Trigger.EnterActions&gt; &lt;Trigger.ExitActions&gt; &lt;StopStoryboard BeginStoryboardName="bst1" /&gt; &lt;/Trigger.ExitActions&gt; &lt;/Trigger&gt; &lt;Trigger Property="IsEnabled" Value="False"&gt; &lt;Setter TargetName="rect1" Property="Fill" Value="Gray"&gt;&lt;/Setter&gt; &lt;/Trigger&gt; &lt;/ControlTemplate.Triggers&gt; &lt;/ControlTemplate&gt; &lt;/Window.Resources&gt; &lt;Grid&gt; &lt;Button Template="{StaticResource ResourceKey=ButtonTemplate}" Height="23" Width="100" BorderThickness="2" Name="btnHello" Content="Hello" IsEnabled="False"&gt; &lt;/Button&gt; &lt;ToolBarPanel&gt; &lt;CheckBox IsChecked="True" Content="Enable Button" Name="cbEnabled" Checked="cbEnabled_Checked" Unchecked="cbEnabled_Checked"/&gt; &lt;/ToolBarPanel&gt; &lt;my:CustomControl1 Name="customControl11" /&gt; &lt;/Grid&gt; </code></pre> <p></p> <p>CustomControl1.xaml: (separate assembly)</p> <pre><code>&lt;ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:chapter5_3CustomControl"&gt; &lt;Style TargetType="{x:Type local:CustomControl1}"&gt; &lt;Setter Property="Template"&gt; &lt;Setter.Value&gt; &lt;ControlTemplate TargetType="{x:Type local:CustomControl1}"&gt; &lt;Border Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}"&gt; &lt;TextBlock Foreground="{TemplateBinding Foreground}" HorizontalAlignment="Center" Text="{Binding Path=Time}" /&gt; &lt;/Border&gt; &lt;/ControlTemplate&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;/Style&gt; </code></pre> <p></p> <p>CustomControl.cs</p> <pre><code>public class CustomControl1 : Control { public static readonly DependencyProperty TimeProperty; System.Timers.Timer myTimer = new System.Timers.Timer(); delegate void SetterDelegate(); static CustomControl1() { FrameworkPropertyMetadata metadata = new FrameworkPropertyMetadata(); TimeProperty = DependencyProperty.Register("Time", typeof(string), typeof(CustomControl1), metadata); DefaultStyleKeyProperty.OverrideMetadata(typeof(CustomControl1), new FrameworkPropertyMetadata(typeof(CustomControl1))); } public CustomControl1() { myTimer.Elapsed += timer_elapsed; myTimer.Interval = 1000; myTimer.Start(); this.DataContext = this; } void TimeSetter() { SetValue(TimeProperty, DateTime.Now.ToLongTimeString()); } void timer_elapsed(object sender, System.Timers.ElapsedEventArgs e) { Dispatcher.Invoke(new SetterDelegate(TimeSetter), System.Windows.Threading.DispatcherPriority.Normal); } } </code></pre> <p><strong>Edit:</strong></p> <p>I wanted to plug a free tool that I use called snoop! You can find it here, and I recommend it as it allows you to inspect your controls at runtime! Snoop Lives here at time of edit: <a href="http://snoopwpf.codeplex.com/" rel="nofollow">http://snoopwpf.codeplex.com/</a> It has saved me a lot of time!</p>
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