Help -- Using {TemplateBinding Content} withTextBlock in ControlTemplate

11-04-2009 12:13 PM |

Basically I have a button that I built a control template for. It is currently working but VS 2010 complains about the following line of code in my control template

<TextBlock Text="{TemplateBinding Content}" Foreground="{TemplateBinding Foreground}" x:Name="cContentTextBlock"  /> 

The control template is for a Button and I have a variety of VisualStates that target this TextBlock.
I can see why VS2010 complains... What if the content isn't actually text? This would cause problems. For me the big deal is that I want to set the Foreground of the text in response to Visual State changes.

Any ideas on how I could accomplish this? (try it, it works... but the vs2010 designer chokes on it)

The following is the entire style:
  

	<Style x:Key="PassiveLinkButton" TargetType="Button">
		<Setter Property="Cursor" Value="Hand" />
		<Setter Property="Template">
			<Setter.Value>
				<ControlTemplate>
					<Grid>
						<vsm:VisualStateManager.VisualStateGroups>
							<vsm:VisualStateGroup x:Name="CommonStates">
								<vsm:VisualState x:Name="MouseOver">
									<Storyboard>
										<ObjectAnimationUsingKeyFrames Storyboard.TargetName="cMouseOverBorder" Storyboard.TargetProperty="BorderBrush">
											<DiscreteObjectKeyFrame KeyTime="0">
												<DiscreteObjectKeyFrame.Value>
													<SolidColorBrush Color="Black" />
												</DiscreteObjectKeyFrame.Value>
											</DiscreteObjectKeyFrame>
										</ObjectAnimationUsingKeyFrames>
									</Storyboard>
								</vsm:VisualState>
								<vsm:VisualState x:Name="Normal"/>
								<vsm:VisualState x:Name="Pressed">
									<Storyboard>
										<ObjectAnimationUsingKeyFrames Storyboard.TargetName="cMouseOverBorder" Storyboard.TargetProperty="BorderBrush">
											<DiscreteObjectKeyFrame KeyTime="0">
												<DiscreteObjectKeyFrame.Value>
													<SolidColorBrush Color="Blue" />
												</DiscreteObjectKeyFrame.Value>
											</DiscreteObjectKeyFrame>
										</ObjectAnimationUsingKeyFrames>
										<ObjectAnimationUsingKeyFrames Storyboard.TargetName="cContentTextBlock" Storyboard.TargetProperty="Foreground">
											<DiscreteObjectKeyFrame KeyTime="0">
												<DiscreteObjectKeyFrame.Value>
													<SolidColorBrush Color="Blue" />
												</DiscreteObjectKeyFrame.Value>
											</DiscreteObjectKeyFrame>
										</ObjectAnimationUsingKeyFrames>
									</Storyboard>
								</vsm:VisualState>
								<vsm:VisualState x:Name="Disabled"/>
							</vsm:VisualStateGroup>
						</vsm:VisualStateManager.VisualStateGroups>
						<Border x:Name="cFocusBorder" 
									BorderThickness="1" 
									BorderBrush="{StaticResource BorderBrush}"
									Margin="2">
							<Grid>
								<Grid.ColumnDefinitions>
									<ColumnDefinition Width="Auto" />
									<ColumnDefinition Width="*" />
								</Grid.ColumnDefinitions>
								<Border x:Name="cMouseOverBorder" 
									BorderBrush="Transparent" BorderThickness="0,0,0,1" Margin="0 0 0 2">
									<StackPanel HorizontalAlignment="Left">
										<TextBlock Text="{TemplateBinding Content}" Foreground="{TemplateBinding Foreground}" 
													x:Name="cContentTextBlock" Margin="2 2 2 0"
													HorizontalAlignment="Center" />
									</StackPanel>
								</Border>
							</Grid>
						</Border>
					</Grid>
				</ControlTemplate>
			</Setter.Value>

		</Setter>
	</Style>

Re: Help -- Using {TemplateBinding Content} withTextBlock in ControlTemplate

11-04-2009 12:26 PM |

Are you using Beta 2 Visual Studio 2010?

Re: Help -- Using {TemplateBinding Content} withTextBlock in ControlTemplate

11-04-2009 4:26 PM |

The error was generated with VS 2010 Beta 2.  I am under the impression the error is correct but perhaps I am not right in this.

Re: Help -- Using {TemplateBinding Content} withTextBlock in ControlTemplate

11-11-2009 12:05 PM |

Hi Min-Hong,

So you believe my syntax is OK but it is an error in VS2010?  I ask because I am trying to determine if I need to not follow this particular practice.

Thanks !

Re: Help -- Using {TemplateBinding Content} withTextBlock in ControlTemplate

11-13-2009 2:10 AM |

Hi Berandor,

   I test it in VS2008 both the desin view and the program works fine. And  in vs2010 the program also works fine but the design view gives us an exception.

Best Regards