How can I bind a data inside a style? - xaml

This XAML tag doesn't work:
<Label Content="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}" />
in this XAML code:
<Style x:Key="textBoxStyle" TargetType="{x:Type TextBox}">
<Style.Triggers>
<Trigger Property="Validation.HasError" Value="True">
<Setter Property="Background" Value="Red"/>
<!--<Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}" />-->
<Setter Property="ToolTip">
<Setter.Value>
<StackPanel Orientation="Vertical">
<Label Background="AliceBlue" Content="Input Error"/>
<Label Content="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}" />
</StackPanel>
</Setter.Value>
</Setter>
</Trigger>
</Style.Triggers>
</Style>
I want to pass (Validation.Errors)[0].ErrorContent data of a TextBox in a Label inside ToolTip property


Using RelativeSource Self on a Label will get you the Label as the source, whereas you want the TextBox. Try a RelativeSource FindAncestor:
<Label Content="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type TextBox}}, Path=(Validation.Errors)[0].ErrorContent}" />

Related

How to pass model value to a StaticResource?

I create a WinUI3 Datagrid, I want to change the datacell background color depend on cell value,
But I don't know how to pass model value into valueconverter?
This is my code:
<Page.Resources>
<local:NameToBrushConverter x:Key="NameToBrushConverterKey"></local:NameToBrushConverter>
<Style x:Key="CellStyle" TargetType="controls:DataGridCell">
<Setter Property="Background" Value="{Binding Source={RelativeSource self} , Converter={StaticResource NameToBrushConverterKey}}" />
</Style>
</Page.Resources>
<StackPanel>
<controls:DataGrid Name="dataGrid1"
Height="600" Margin="12"
AutoGenerateColumns="False"
ItemsSource="{x:Bind MyViewModel.Customers}" >
<controls:DataGrid.Columns >
<controls:DataGridTextColumn Header="FirstName" Binding="{Binding FirstName}" x:Name="name" CellStyle="{StaticResource CellStyle}" >
</controls:DataGridTextColumn>
</controls:DataGrid.Columns>
</controls:DataGrid>
</StackPanel>
How to pass MyViewModel.Customers's FirstName value into NameToBrushConverterKey ?
I tried the way: <Setter Property="Background" Value="{Binding Source={RelativeSource self}, Path=DataContext.FirstName, Converter={StaticResource NameToBrushConverterKey}}" />
But it's nothing happend.

where is the code behind implemented for this xaml

I have a xaml without a x:Class, this xaml has command bindings for some buttons. I want to add a new button and add some functionality to this button.
If I add x:Class, I get the error this class doesn't have the command methods.
How can I know, where are the commands implemented? How can I functionality to my button?
PS: I am working iwth the Vault Standards project from Autodesk
This is my xaml:
<WPF:MainWindow
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
x:Name="FileWindow"
xmlns:WPF="clr-namespace:CreateObject.WPF;assembly=CreateObject"
AllowsTransparency="False" Background="#F0F0F0" ResizeMode="NoResize" SizeToContent="WidthAndHeight">
<Window.Resources>
<Style x:Key="DynamicDataGridCellStyle" TargetType="{x:Type DataGridCell}">
<Setter Property="KeyboardNavigation.IsTabStop" Value="False" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<ComboBox ItemsSource="{Binding ListValues}"
Text="{WPF:ValidatedBinding Value, StringFormat=N}" IsEditable="True"
BorderThickness="0" />
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
<Setter Property="Foreground"
Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}" />
<Setter Property="BorderBrush" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
</Trigger>
<Trigger Property="IsKeyboardFocusWithin" Value="True">
<Setter Property="BorderBrush" Value="{DynamicResource {x:Static DataGrid.FocusBorderBrushKey}}" />
</Trigger>
<DataTrigger Binding="{Binding EnforceListValues}" Value="True">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<ComboBox ItemsSource="{Binding ListValues}" SelectedItem="{WPF:ValidatedBinding Value}"
BorderThickness="0"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</DataTrigger>
<DataTrigger Binding="{Binding ListValues.Count}" Value="0">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<TextBox Text="{WPF:ValidatedBinding Value, StringFormat=N}" BorderThickness="0" CharacterCasing="{Binding Case}" />
</ControlTemplate>
</Setter.Value>
</Setter>
</DataTrigger>
<DataTrigger Binding="{Binding Typ}" Value="DateTime">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<DatePicker SelectedDate="{WPF:ValidatedBinding Value}" SelectedDateFormat="Short"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</DataTrigger>
<DataTrigger Binding="{Binding Typ}" Value="Bool">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<ComboBox Text="{WPF:ValidatedBinding Value}" IsEditable="True">
<ComboBoxItem Content="True" />
<ComboBoxItem Content="False" />
</ComboBox>
</ControlTemplate>
</Setter.Value>
</Setter>
</DataTrigger>
</Style.Triggers>
</Style>
<Style x:Key="DynamicDataGridLabelStyle" TargetType="{x:Type DataGridCell}">
<Setter Property="KeyboardNavigation.IsTabStop" Value="False" />
<Setter Property="Height" Value="22" />
<Setter Property="Margin" Value="0,4,0,0" />
<Setter Property="BorderThickness" Value="0" />
<Setter Property="IsHitTestVisible" Value="False" />
</Style>
<Style TargetType="{x:Type Label}" BasedOn="{StaticResource {x:Type Label}}">
<Setter Property="Margin" Value="0,0,0,0" />
<Setter Property="Padding" Value="5,3,3,2" />
<Setter Property="VerticalAlignment" Value="Stretch" />
<Setter Property="HorizontalAlignment" Value="Stretch" />
<Setter Property="BorderBrush" Value="#FFABADB3" />
<Setter Property="BorderThickness" Value="1,1,1,0" />
<Style.Triggers>
<DataTrigger Binding="{Binding Content, RelativeSource={RelativeSource Self}}" Value="{x:Null}">
<Setter Property="BorderThickness" Value="1" />
<Setter Property="BorderBrush" Value="#ff0000" />
</DataTrigger>
</Style.Triggers>
</Style>
<Style TargetType="{x:Type TextBox}" BasedOn="{StaticResource {x:Type TextBox}}">
<Setter Property="Margin" Value="0,0,0,0" />
<Setter Property="VerticalAlignment" Value="Stretch" />
<Setter Property="HorizontalAlignment" Value="Stretch" />
<Setter Property="VerticalContentAlignment" Value="Center" />
<Setter Property="BorderBrush" Value="#FFABADB3" />
<Setter Property="BorderThickness" Value="0,1,1,0" />
<Setter Property="Padding" Value="5,3,3,2" />
<Setter Property="TextWrapping" Value="Wrap"></Setter>
<Style.Triggers>
<Trigger Property="Validation.HasError" Value="true">
<Setter Property="ToolTip"
Value="{Binding (Validation.Errors)[0].ErrorContent, RelativeSource={x:Static RelativeSource.Self}}" />
</Trigger>
<DataTrigger Binding="{Binding IsReadOnly, RelativeSource={RelativeSource Self}}" Value="True">
<Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowColorKey}}" />
</DataTrigger>
</Style.Triggers>
</Style>
<Style TargetType="{x:Type ComboBox}" BasedOn="{StaticResource {x:Type ComboBox}}">
<Setter Property="Margin" Value="0,0,0,0" />
<Setter Property="VerticalContentAlignment" Value="Center" />
<Setter Property="VerticalAlignment" Value="Stretch" />
<Setter Property="HorizontalAlignment" Value="Stretch" />
<Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.ControlLightLightBrushKey}}" />
<Setter Property="BorderBrush" Value="#FFABADB3" />
<Setter Property="BorderThickness" Value="0,1,1,0" />
<Style.Triggers>
<Trigger Property="Validation.HasError" Value="true">
<Setter Property="ToolTip"
Value="{Binding (Validation.Errors)[0].ErrorContent, RelativeSource={x:Static RelativeSource.Self}}" />
</Trigger>
</Style.Triggers>
</Style>
<Style TargetType="{x:Type DatePicker}">
<Setter Property="Height" Value="22" />
<Style.Triggers>
<Trigger Property="Validation.HasError" Value="true">
<Setter Property="ToolTip"
Value="{Binding (Validation.Errors)[0].ErrorContent, RelativeSource={x:Static RelativeSource.Self}}" />
</Trigger>
</Style.Triggers>
</Style>
<Style x:Key="Required" TargetType="{x:Type TextBox}" BasedOn="{StaticResource {x:Type TextBox}}">
<Style.Triggers>
<DataTrigger Binding="{Binding Text, RelativeSource={RelativeSource Self}}" Value="">
<Setter Property="BorderBrush" Value="Red" />
<Setter Property="BorderThickness" Value="1,1,1,1" />
</DataTrigger>
</Style.Triggers>
</Style>
<Style x:Key="NumSchmCtrlStyle" TargetType="{x:Type WPF:DSNumSchemeCtrl}">
<Setter Property="Height" Value="Auto" />
<Setter Property="ToolTipService.ShowOnDisabled" Value="True" />
<Setter Property="BorderBrush" Value="Gray" />
<Setter Property="BorderThickness" Value="0,1,1,0" />
<Style.Triggers>
<DataTrigger Binding="{Binding EditMode}" Value="True">
<Setter Property="Visibility" Value="Collapsed" />
</DataTrigger>
</Style.Triggers>
</Style>
<Style x:Key="DocTypeStyle" TargetType="{x:Type ComboBox}" BasedOn="{StaticResource {x:Type ComboBox}}">
<Style.Triggers>
<DataTrigger Binding="{Binding EditMode}" Value="True">
<Setter Property="Visibility" Value="Collapsed" />
</DataTrigger>
</Style.Triggers>
</Style>
<Style x:Key="TemplateCbStyle" TargetType="{x:Type ComboBox}" BasedOn="{StaticResource {x:Type ComboBox}}">
<Style.Triggers>
<DataTrigger Binding="{Binding CreateMode}" Value="True">
<Setter Property="ItemsSource" Value="{Binding Templates}" />
</DataTrigger>
<DataTrigger Binding="{Binding EditMode}" Value="True">
<Setter Property="Visibility" Value="Collapsed" />
</DataTrigger>
<DataTrigger Binding="{Binding ElementName=TemplateTB, Path=Visibility}" Value="Visible">
<Setter Property="Visibility" Value="Collapsed" />
</DataTrigger>
</Style.Triggers>
</Style>
<Style x:Key="ButtonGridStyle" TargetType="{x:Type Grid}">
<Setter Property="Margin" Value="0,15,2,5" />
</Style>
<!-- This XmlDataProvider is used for defining Name/TemplatePath pairs that are used in the combo box "Document Type" and can be easily extended -->
<XmlDataProvider x:Key="DocTypes"
Source="C:\ProgramData\Autodesk\Vault 2020\Extensions\DataStandard\Vault\Configuration\File.xml"
XPath="/DocTypeData" />
<BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" />
</Window.Resources>
<Grid x:Name="grdMain" Margin="5">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Grid x:Name="grdGeneralProps" Margin="0"
ToolTip="{Binding UIString[LBL73], FallbackValue='General Properties'}"
Width="Auto">
<Grid.RowDefinitions>
<RowDefinition Height="auto" />
<RowDefinition Height="auto" />
<RowDefinition Height="auto" />
<RowDefinition Height="auto" />
<RowDefinition Height="auto" />
<RowDefinition Height="auto" />
<RowDefinition Height="auto" />
<RowDefinition Height="auto" />
<RowDefinition Height="auto" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="140"/>
<ColumnDefinition Width="220"/>
</Grid.ColumnDefinitions>
<Label Content="{Binding UIString[LBL8], FallbackValue=Categories}" Grid.Row="0" Grid.Column="0" />
<ComboBox x:Name="Categories" ItemsSource="{Binding PsList[GetCategories], Mode=OneTime}"
DisplayMemberPath="Name" SelectedItem="{Binding DynamicPropertiesCategory}"
SelectedValuePath="Name" SelectedValue="{Binding Prop[_Category].Value}"
Grid.Row="0" Grid.Column="1"
IsEnabled="{Binding CreateMode}" />
<Label Content="{Binding UIString[LBL23], FallbackValue=DocTypes}" Grid.Row="1" Grid.Column="0"
Visibility="{Binding Visibility, ElementName=DocTypeCombo}" />
<ComboBox ItemsSource="{Binding Source={StaticResource DocTypes}, XPath=DocTypeInfo}"
x:Name="DocTypeCombo"
Grid.Row="1"
Grid.Column="1"
IsEnabled="{Binding CreateMode}"
DisplayMemberPath="DocName"
SelectedValuePath="Path"
SelectedValue="{Binding TemplatePath}"
SelectedIndex="0"
Style="{StaticResource DocTypeStyle}" />
<Label Content="{Binding UIString[LBL9], FallbackValue=Templates}" Grid.Row="2" Grid.Column="0" >
<Label.Style>
<Style TargetType="{x:Type Label}">
<Setter Property="BorderBrush" Value="#FFABADB3" />
<Setter Property="BorderThickness" Value="1,1,1,0" />
<Style.Triggers>
<MultiDataTrigger>
<MultiDataTrigger.Conditions>
<Condition Binding="{Binding EditMode}" Value="True" />
<Condition Binding="{Binding Visibility, ElementName=TemplateCB}"
Value="Collapsed" />
</MultiDataTrigger.Conditions>
<Setter Property="Visibility" Value="Collapsed" />
</MultiDataTrigger>
</Style.Triggers>
</Style>
</Label.Style>
</Label>
<ComboBox x:Name="TemplateCB" Grid.Row="2" Grid.Column="1" IsSynchronizedWithCurrentItem="True"
SelectedItem="{Binding SelectedTemplate}" Style="{StaticResource TemplateCbStyle}" />
<TextBox x:Name="TemplateTB" Grid.Row="2" Grid.Column="1" Text="{Binding UIString[LBL28]}" IsHitTestVisible="False">
<TextBox.Style>
<Style TargetType="{x:Type TextBox}">
<Setter Property="TextWrapping" Value="Wrap"></Setter>
<Setter Property="Visibility" Value="Collapsed" />
<Style.Triggers>
<MultiDataTrigger>
<MultiDataTrigger.Conditions>
<Condition Binding="{Binding SelectedItem, ElementName=TemplateCB}"
Value="{x:Null}" />
<Condition Binding="{Binding CreateMode}" Value="True" />
</MultiDataTrigger.Conditions>
<Setter Property="Visibility" Value="Visible" />
<Setter Property="Background" Value="#F0F0F0" />
</MultiDataTrigger>
</Style.Triggers>
</Style>
</TextBox.Style>
</TextBox>
<Label Content="{Binding UIString[LBL10],FallbackValue=Numberingscheme}" Grid.Column="0" Grid.Row="3"
Visibility="{Binding Visibility, ElementName=NumSchms}" />
<ComboBox Grid.Column="1" Grid.Row="3"
x:Name="NumSchms" DisplayMemberPath="Name"
SelectedValuePath="Name"
SelectedValue="{Binding Prop[_NumSchm].Value}"
ItemsSource="{Binding PsList[GetNumSchms], Mode=OneTime}"
IsEnabled="{Binding HasItems, RelativeSource={RelativeSource Self}}"
Visibility="{Binding NotEditMode, Converter={StaticResource BooleanToVisibilityConverter}}" />
<Label Content="{Binding UIString[LBL31], FallbackValue=Number}" Grid.Column="0" Grid.Row="4" Height="Auto"
Visibility="{Binding Visibility, ElementName=DSNumSchmsCtrl}" />
<WPF:DSNumSchemeCtrl Grid.Column="1" Grid.Row="4" x:Name="DSNumSchmsCtrl"
IsEnabled="{Binding ElementName=NumSchms, Path=IsEnabled}"
Scheme="{Binding ElementName=NumSchms, Path=SelectedItem}"
GeneratedNumberProperty="_GeneratedNumber" Style="{StaticResource NumSchmCtrlStyle}" />
<Label Content="{Binding UIString[LBL5],FallbackValue=Path}" Grid.Column="0" Grid.Row="6"
BorderThickness="1" />
<TextBox Text="{WPF:ValidatedBinding Prop[_FilePath].Value}" Grid.Column="1" Grid.Row="6" IsReadOnly="True"
IsTabStop="False" BorderThickness="0,1,1,1" />
<Label Content="{Binding UIString[LBL6],FallbackValue=Filename}" Grid.Row="5" Grid.Column="0"
Visibility="{Binding NumSchmFieldsEmpty, ElementName=DSNumSchmsCtrl, Converter={StaticResource BooleanToVisibilityConverter}}" />
<Grid Grid.Row="5" Grid.Column="1">
<TextBox Grid.Column="0" x:Name="FILENAME" Text="{WPF:ValidatedBinding Name}"
IsTabStop="False" Visibility="{Binding NumSchmFieldsEmpty, ElementName=DSNumSchmsCtrl, Converter={StaticResource BooleanToVisibilityConverter}}" />
<Button x:Name="TranslationButton" Content="..."
Grid.Column="1" Width="20"
HorizontalAlignment="Right" Height="24" IsCancel="True" />
<!-- -->
</Grid>
</Grid>
<DataGrid Grid.Column="1" x:Name="DSDynCatPropGrid" MaxHeight="350"
ItemsSource="{Binding DynamicProperties}"
ToolTip="{Binding UIString[LBL63], FallbackValue='Category Properties'}"
AutoGenerateColumns="False"
HeadersVisibility="Column"
ScrollViewer.CanContentScroll="True"
EnableRowVirtualization="False"
HorizontalGridLinesBrush="WhiteSmoke"
VerticalGridLinesBrush="WhiteSmoke" BorderBrush="Gray" MaxWidth="380"
Margin="5,0,0,0" VerticalAlignment="Top">
<DataGrid.Columns>
<DataGridTextColumn Binding="{Binding Name}" CellStyle="{StaticResource DynamicDataGridLabelStyle}"
MinWidth="140" Width="Auto" IsReadOnly="True">
<DataGridTextColumn.HeaderTemplate>
<DataTemplate>
<TextBlock
Text="{Binding DataContext.UIString[LBL64], RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}" />
</DataTemplate>
</DataGridTextColumn.HeaderTemplate>
</DataGridTextColumn>
<DataGridTextColumn Binding="{Binding Value}" Width="*"
CellStyle="{StaticResource DynamicDataGridCellStyle}" IsReadOnly="True">
<DataGridTextColumn.HeaderTemplate>
<DataTemplate>
<TextBlock
Text="{Binding DataContext.UIString[LBL65], RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}" />
</DataTemplate>
</DataGridTextColumn.HeaderTemplate>
</DataGridTextColumn>
</DataGrid.Columns>
</DataGrid>
<Grid x:Name="ButtonGrid" Style="{StaticResource ButtonGridStyle}" Grid.Row="2" Grid.ColumnSpan="2">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="80" />
<ColumnDefinition />
<ColumnDefinition Width="80" />
<ColumnDefinition Width="20" />
<ColumnDefinition Width="80" />
</Grid.ColumnDefinitions>
<Button x:Name="btnOK" Content="{Binding UIString[BTN1], FallbackValue=OK}"
Command="{Binding CloseWindowCommand, ElementName=FileWindow}" IsEnabled="{Binding IsNotReadonly}"
Grid.Column="2" Width="80" Height="24" IsDefault="True" />
<Button x:Name="btnEsc" Content="{Binding UIString[BTN2], FallbackValue=Esc}"
Command="{Binding CancelWindowCommand, ElementName=FileWindow}" Grid.Column="4" Width="80"
HorizontalAlignment="Right" Height="24" IsCancel="True" />
<Button x:Name="MyButtonCopied" Content="{Binding UIString[BTN2], FallbackValue=Esc}"
Command="{Binding CancelWindowCommand, ElementName=FileWindow}" Grid.Column="1" Width="80"
HorizontalAlignment="Right" Height="24" IsCancel="True" />
</Grid>
</Grid>
Thanks

Assuming you are using Visual Studio, two ways to find where the .CS file is located: 1) add an event and have Visual Studio automatically create the event method. Visual studio will open the .CS file. Once open, you know where it is located. 2) right click on a property and select "Peek Definition". Once shown, hover over the CS filename and the hint will tell you where the file is located.

Xaml Change text of TextBlock When Combobox Selection Change

I'm currently facing a problem in one of my Xaml Files. I created a combox with 2 fixed combobox Items. I also created a textblock. Here is the xaml code :
<StackPanel>
<TextBlock Grid.Column="0" x:Name="UserSettingsConnectorGroupBoxProductTextBlock" HorizontalAlignment="Left" TextWrapping="Wrap" Text="{Binding Strings.UserSettingsConnectorGroupBoxProductText, Source={StaticResource StringLocalizer}}" VerticalAlignment="Center" Margin="10,0,0,0" />
<ComboBox Grid.Column="1" x:Name="UserSettingsConnectorGroupBoxProductComboBox" VerticalAlignment="Center" Width="300" HorizontalAlignment="Left" Margin="10,5,0,0" SelectionChanged="UserSettingsConnectorGroupBoxProductComboBox_SelectionChanged" >
<ComboBoxItem Content="Microsoft Deployment Toolkit" />
<ComboBoxItem Content="Microsoft System Center Configuration Manager" />
</ComboBox>
<StackPanel Orientation="Vertical" HorizontalAlignment="Left" Margin="10,0,0,0">
<TextBlock Name="ConnectorTextBlock" Text="toto" Margin="0,5" >
<TextBlock.Style>
<Style TargetType="TextBlock">
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=UserSettingsConnectorGroupBoxProductComboBox, Path=Text}" Value="Microsoft Deployment Toolkit">
<Setter Property="Text" Value="{Binding Strings.UserSettingsConnectorGroupBoxProductTextBlockConnectorPathMDT, Source={StaticResource StringLocalizer}}" />
</DataTrigger>
<DataTrigger Binding="{Binding ElementName=UserSettingsConnectorGroupBoxProductComboBox, Path=Text}" Value="Microsoft System Center Configuration Manager">
<Setter Property="Text" Value="{Binding Strings.UserSettingsConnectorGroupBoxProductTextBlockConnectorPathSCCM, Source={StaticResource StringLocalizer}}" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
<StackPanel Orientation="Horizontal" >
<TextBox Name="ConnectorTextBox" Margin="0,5" Width="300">
</TextBox>
<Button Content="Test" Margin="5" Width="100" HorizontalAlignment="Right"/>
</StackPanel>
<Button Content="Save" Width="100" HorizontalAlignment="Left" Margin="0,5" IsEnabled="False"/>
</StackPanel>
And a preview :
enter image description here
I would like the text of textBlock named "ConnectorTextBox" changes when the combobox Selected Item Changes. In order to do this, i created 2 datatriggers in TextBlock bound to "Text" Property of Combobox Control. Depending on the value of Text property, the Text value of textblock changes.
But it does not function. Only default value "Toto" is diplayed, even if i change my combobox Selection.
Any help would be greatly appreciated :) :)
Regis

Avoid setting Text property of TextBlock. Try this
<TextBlock Name="ConnectorTextBlock" Margin="0,5" >
<TextBlock.Style>
<Style TargetType="TextBlock">
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=UserSettingsConnectorGroupBoxProductComboBox, Path=Text}" Value="Microsoft Deployment Toolkit">
<Setter Property="Text" Value="{Binding Strings.UserSettingsConnectorGroupBoxProductTextBlockConnectorPathMDT, Source={StaticResource StringLocalizer}}" />
</DataTrigger>
<DataTrigger Binding="{Binding ElementName=UserSettingsConnectorGroupBoxProductComboBox, Path=Text}" Value="Microsoft System Center Configuration Manager">
<Setter Property="Text" Value="{Binding Strings.UserSettingsConnectorGroupBoxProductTextBlockConnectorPathSCCM, Source={StaticResource StringLocalizer}}" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
If you want to set a default value, do it as below
<TextBlock Name="ConnectorTextBlock" Margin="0,5" >
<TextBlock.Style>
<Style TargetType="TextBlock">
<Setter Property="Text" Value="Toto" />
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=UserSettingsConnectorGroupBoxProductComboBox, Path=Text}" Value="Microsoft Deployment Toolkit">
<Setter Property="Text" Value="{Binding Strings.UserSettingsConnectorGroupBoxProductTextBlockConnectorPathMDT, Source={StaticResource StringLocalizer}}" />
</DataTrigger>
<DataTrigger Binding="{Binding ElementName=UserSettingsConnectorGroupBoxProductComboBox, Path=Text}" Value="Microsoft System Center Configuration Manager">
<Setter Property="Text" Value="{Binding Strings.UserSettingsConnectorGroupBoxProductTextBlockConnectorPathSCCM, Source={StaticResource StringLocalizer}}" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
Hope this helps!!

How can I use the same style on several TextBlock controls, but have each control using different bindings and triggers?

I'd like to have several TextBlocks generally looking the same, but each needs to react on another trigger and in another way. I've tried to use a common style (MyTextBlockStyle) and add triggers later. But I get allways error meesages like "the property 'style' has been declared twice" or simillar.
To explain what I mean, I've made an example with 3 TextBlocks. 2 of them are bound to each a different CheckBox, and each triggering a different property (displayed text vs. foreground color). A third TextBlock shall change its background color depending of the content of a TextbBox. How can I achieve something like this?
<UserControl.Resources>
<Style x:Key="MyTextBlockStyle" TargetType="TextBlock">
<Setter Property="Background" Value="Yellow"/>
<Setter Property="Foreground" Value="Black"/>
<Setter Property="Margin" Value="10"/>
<Setter Property="Padding" Value="5"/>
</Style>
</UserControl.Resources>
<Grid >
<StackPanel Margin="10">
<CheckBox x:Name="CheckBox01" Content="Change Background of TextBlock 1" IsChecked="False" Foreground="White" Margin="5" />
<CheckBox x:Name="CheckBox02" Content="Change Background of TextBlock 2" IsChecked="False" Foreground="White" Margin="5" />
<TextBox x:Name="TextBox03" Padding="10" Background="White" Text="Enter Text here ..." Tooltip="Change Background of TextBlock 3"/>
<TextBlock Style="{StaticResource MyTextBlockStyle}" >
<TextBlock.Style>
<Style TargetType="TextBlock">
<Setter Property="Text" Value="No" />
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=CheckBox01, Path=IsChecked}" Value="True">
<Setter Property="Text" Value="Yes!" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
<TextBlock Style="{Static Resource MyTextBlockStyle}" Text="Something different">
<TextBlock.Style>
<Style TargetType="TextBlock">
<Setter Property="Foreground" Value="Red" />
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=CheckBox02, Path=IsChecked}" Value="True">
<Setter Property="Foreground" Value="Green" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
<TextBlock Style="{Static Resource MyTextBlockStyle}" Text="Anything else">
<TextBlock.Style>
<Style TargetType="TextBlock">
<Setter Property="Background" Value="Yellow" />
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=TextBox03, Path=Text}" Value="">
<Setter Property="Background" Value="Blue" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
</StackPanel>
</Grid >

Please try this code.It works.I guess as you wish
<Window.Resources>
<Style TargetType="TextBlock">
<Style.Triggers>
<MultiDataTrigger>
<MultiDataTrigger.Conditions>
<Condition Binding="{Binding ElementName=CheckBox01,Path=IsChecked}" Value="True"/>
<Condition Binding="{Binding RelativeSource={RelativeSource Mode=Self}, Path=Tag}" Value="tb1"/>
</MultiDataTrigger.Conditions>
<Setter Property="TextBlock.Background" Value="Orange"/>
</MultiDataTrigger>
<MultiDataTrigger>
<MultiDataTrigger.Conditions>
<Condition Binding="{Binding ElementName=CheckBox02,Path=IsChecked}" Value="True"/>
<Condition Binding="{Binding RelativeSource={RelativeSource Mode=Self}, Path=Tag}" Value="tb2"/>
</MultiDataTrigger.Conditions>
<Setter Property="TextBlock.Background" Value="Pink"/>
</MultiDataTrigger>
<MultiDataTrigger>
<MultiDataTrigger.Conditions>
<Condition Binding="{Binding ElementName=TextBox03,Path=Text}" Value=""/>
<Condition Binding="{Binding RelativeSource={RelativeSource Mode=Self}, Path=Tag}" Value="tb3"/>
</MultiDataTrigger.Conditions>
<Setter Property="TextBlock.Background" Value="Green"/>
</MultiDataTrigger>
</Style.Triggers>
</Style>
</Window.Resources>
<Grid>
<StackPanel Margin="10">
<CheckBox x:Name="CheckBox01" Content="Change Background of TextBlock 1" IsChecked="False" Margin="5"/>
<CheckBox x:Name="CheckBox02" Content="Change Background of TextBlock 2" IsChecked="False" Margin="5"/>
<TextBox x:Name="TextBox03" Padding="10" Background="White" Text="Enter Text here ..."/>
<TextBlock Tag="tb1"/>
<TextBlock Tag="tb2" Text="Something different"/>
<TextBlock Tag="tb3" x:Name="tb3" Text="Anything else"/>
</StackPanel>
</Grid >

You are looking for the BasedOn Property. It gets me all the time.
<TextBlock>
<TextBlock.Style>
<Style TargetType="TextBlock" BasedOn="MyTextBlockStyle">
<Setter Property="Text" Value="No" />
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=CheckBox01, Path=IsChecked}" Value="True">
<Setter Property="Text" Value="Yes!" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>

How to change button background color depending on bound command canexecute?

I Have a ItemTemplate in which is a simple button bound on a command, which can be executable or not depending on some property.
I'd like the color of this button's background to change if the command isn't executable.
I tried several methods, but I can't find anyway to do this purely in XAML (I'm doing this in a study context, and code behind isn't allowed).
Here's my code for the button :
<Button x:Name="Dispo" HorizontalAlignment="Center" Margin="0" VerticalAlignment="Center" Width="30" Height="30"
Grid.Column="2" Grid.Row="0"
Command="{Binding AddEmpruntCommandModel.Command}"
CommandParameter="{Binding ElementName='flowCars', Path='SelectedItem'}"
vm:CreateCommandBinding.Command="{Binding AddEmpruntCommandModel}" >
<Button.Style>
<Style TargetType="{x:Type Button}">
<Style.Triggers>
<Trigger Property="IsEnabled" Value="True">
<Setter Property="Button.Background" Value="Green"/>
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Button.Background" Value="Red"/>
</Trigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>

You can specify your own template like that:
<Button Content="OK" Command="{Binding SomeCommand}">
<Button.Style>
<Style>
<Setter Property="Button.Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border x:Name="Border" Background="Green">
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="false">
<Setter TargetName="Border" Property="Background" Value="Red" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Button.Style>
</Button>