I want to set a style for my DataGrid, but I do not know where is the problem
the backgroud property does not work with its value in the presence of the Template property.
my code:
<Style x:Key="DataGridStyle1" TargetType="{x:Type DataGrid}">
<Setter Property="CellStyle" Value="{DynamicResource GridStyle1}"/>
</Style>
<Style x:Key="GridStyle1" TargetType="DataGridCell">
<Style.Triggers>
<Trigger Property="IsSelected" Value="True" >
<Setter Property="Background" Value="SeaGreen"/>
</Trigger>
</Style.Triggers>
<Style.Setters>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type DataGridCell}">
<Border Name="DataGridCellBorder">
<ContentControl Content="{TemplateBinding Content}">
<ContentControl.ContentTemplate>
<DataTemplate>
<TextBlock Background="Transparent" TextWrapping="WrapWithOverflow" TextTrimming="CharacterEllipsis"
Height="auto" Width="auto" Text="{Binding Text}"/>
</DataTemplate>
</ContentControl.ContentTemplate>
</ContentControl>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style.Setters>
</Style>
Help me please.
You have explicitly set TextBlock background to Transparent, so it won't pick value from DataGridCell. You should bind with background of DataGridCell using RelativeSource like this:
<TextBlock Background="{Binding Background, RelativeSource={RelativeSource
Mode=FindAncestor, AncestorType=DataGridCell}}"
TextWrapping="WrapWithOverflow" TextTrimming="CharacterEllipsis"
Height="auto" Width="auto" Text="{Binding Text}"/>
Related
I have below WPF Toolkit DataGrid. I have created a custom column using DataGridTemplateColumn which contains a toggle button (without text).
When datagrid row is selected, toggle button background color is correctly changed with the same color as row selection but the cell's background is not changing the color, it remains white. Why?
This is the appearance of the DataGridTemplateColumn column before and after row selection.
Before:
After:
Here the code:
<UserControl.Resources>
<ResourceDictionary>
<!-- Body content datagrid cell vertical centering -->
<Style x:Key="Body_Content_DataGrid_Centering" TargetType="{x:Type dg:DataGridCell}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type dg:DataGridCell}">
<Grid Background="{TemplateBinding Background}">
<ContentPresenter VerticalAlignment="Center" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ResourceDictionary>
</UserControl.Resources>
<!-- Other Stuff -->
<dg:DataGrid x:Name="MyDg"
ItemsSource="{Binding Path=ListOfItems}"
Margin="3 5 5 5"
AutoGenerateColumns="False"
CanUserAddRows="False" CanUserResizeRows="False"
SelectionMode="Single"
SelectedItem="{Binding Path=MySelectedItem}"
ColumnWidth="*"
AlternationCount="2"
Focusable="False" SelectionUnit="FullRow"
CellStyle="{StaticResource Body_Content_DataGrid_Centering}">
<dg:DataGrid.Columns>
<dg:DataGridTemplateColumn Header="Selection" Width="Auto" CanUserResize="False">
<dg:DataGridTemplateColumn.CellStyle>
<Style TargetType="dg:DataGridCell">
<Setter Property="HorizontalAlignment" Value="Center"/>
</Style>
</dg:DataGridTemplateColumn.CellStyle>
<dg:DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<ToggleButton Content="" IsChecked="{Binding Path=IsSelected}">
<ToggleButton.Template>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<StackPanel Orientation="Horizontal">
<Image MaxWidth="32" MaxHeight="32">
<Image.Style>
<Style>
<Setter Property="Image.Source" Value="/My.Graphics;component/PNG/Unchecked.png" />
<Style.Triggers>
<DataTrigger Binding="{Binding IsChecked,
RelativeSource={RelativeSource Mode=FindAncestor,
AncestorType={x:Type ToggleButton}}}" Value="True">
<Setter Property="Image.Source" Value="/My.Graphics;component/PNG/Checked.png" />
</DataTrigger>
</Style.Triggers>
</Style>
</Image.Style>
</Image>
<!-- <ContentPresenter Content="{TemplateBinding Content}" Margin="0,0,0,0" />-->
</StackPanel>
</ControlTemplate>
</ToggleButton.Template>
</ToggleButton>
</DataTemplate>
</dg:DataGridTemplateColumn.CellTemplate>
</dg:DataGridTemplateColumn>
</dg:DataGrid.Columns>
</dg:DataGrid>
Finally, I have solved it, the problem was in the style declaration for the DataGridTemplateColumn.
Despite setting toggle button background to Transparent it was not working as Raviraj suggested.
Finally the solution was to change the piece of code regarding to the DataGridTemplateColumn:
<dg:DataGridTemplateColumn.CellStyle>
<Style TargetType="dg:DataGridCell">
<Setter Property="HorizontalAlignment" Value="Center"/>
</Style>
</dg:DataGridTemplateColumn.CellStyle>
By this one:
<dg:DataGridTemplateColumn.CellStyle>
<Style TargetType="dg:DataGridCell">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type dg:DataGridCell}">
<Grid Background="{TemplateBinding Background}">
<ContentPresenter HorizontalAlignment="Center" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</dg:DataGridTemplateColumn.CellStyle>
Doing this is working.
Below the result.
Before row selection:
After row selection:
Set the background color of your the column template to transparent.
Something like this:
<DataTemplate>
<ToggleButton Background="Transparent" Content="" IsChecked="{Binding Path=IsSelected}">
I am trying to create a sort of left menu for navigation inside the desktopapplication. My idea is to use Buttons as Listview items which should behave in this way: when i hover with the mouseover them theri background should change color (becomes darkCyan) and when i click one its background color should change persistently (to darkCyan) until i click on another button of the list. The problem is that i am using a the DataTemplate property to specify how the buttons should look like and I am tryin to apply the triggers to change the background color on the ControlTemplate of the ListView. The result is that sometimes the background color changes but the command related to the button is not fired other times the contrary. I think that I am doing the things in the wrong element of the tree view, but I don't have enough knowledge of the tree view so I am not understanding what I am doing wrong. Here is the code of the XAML in which i define the styles for the Buttons and the ListView
<Window.Resources>
<DataTemplate DataType="{x:Type viewModels:TripViewModel}">
<views:TripView />
</DataTemplate>
<Style TargetType="{x:Type Button}">
<Setter Property="Height"
Value="50" />
<Setter Property="Background"
Value="#555D6F" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border>
<Grid Background="Transparent">
<ContentPresenter HorizontalAlignment="Center"
VerticalAlignment="Center" />
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style TargetType="{x:Type ListViewItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListViewItem}">
<Border BorderBrush="Transparent"
BorderThickness="0"
Background="{TemplateBinding Background}">
<ContentPresenter HorizontalAlignment="Center"
VerticalAlignment="Center" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver"
Value="True">
<Setter Property="Background"
Value="DarkCyan" />
</Trigger>
<Trigger Property="IsSelected"
Value="True">
<Setter Property="Background"
Value="DarkCyan" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
And here is the code in which I create the ListView
<ListView Name="MenuButtons"
ItemsSource="{Binding PageViewModels}"
Background="Transparent"
IsSynchronizedWithCurrentItem="True">
<ListView.ItemTemplate>
<DataTemplate>
<Button Content="{Binding Name}"
Command="{Binding DataContext.ChangePageCommand, RelativeSource={RelativeSource AncestorType={x:Type Window}}}"
Margin="0" />
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
Anyone can help?
Thanks
I have solved the issue by using a ListBox instead of a ListView and setting the ItemContainer to be a button in the following way
<ListBox.ItemTemplate>
<ItemContainerTemplate>
<Button Content="{Binding Name}"
Command="{Binding DataContext.ChangePageCommand, RelativeSource={RelativeSource AncestorType={x:Type Window}}}"
Margin="0" />
</ItemContainerTemplate>
</ListBox.ItemTemplate>
I needed a placeholder for TextBox and found this working code:
<Style x:Key="placeHolder" TargetType="{x:Type TextBox}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TextBox}">
<Grid>
<TextBox Text="{Binding Path=Text,
RelativeSource={RelativeSource TemplatedParent},
Mode=TwoWay,
UpdateSourceTrigger=PropertyChanged}"
x:Name="textSource"
Background="Transparent"
Panel.ZIndex="2"
BorderThickness="0,0,0,1"/>
<TextBox Text="{TemplateBinding Tag}" Background="{TemplateBinding Background}" Panel.ZIndex="1">
<TextBox.Style>
<Style TargetType="{x:Type TextBox}">
<Setter Property="Foreground" Value="Transparent"/>
<Style.Triggers>
<DataTrigger Binding="{Binding Path=Text, Source={x:Reference textSource}}" Value="">
<Setter Property="Foreground" Value="LightGray"/>
</DataTrigger>
</Style.Triggers>
</Style>
</TextBox.Style>
</TextBox>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
This is my TextBox:
<TextBox x:Name="isci_tb" HorizontalAlignment="Left" Height="25" Margin="0,0,0,0" TextWrapping="Wrap"
VerticalAlignment="Center" Width="120" BorderThickness="0, 0, 0, 1" TextChanged="isci_tb_TextChanged" Tag="išči" Style="{StaticResource placeHolder}">
<TextBox.Background>
<ImageBrush/>
</TextBox.Background>
</TextBox>
Since I am new to XAML I don't see where or what changes the border of my button. I wish to only have the bottom border but instead all 4 borders are shown.
Set the BorderThickness property of the inner TextBox in your template to 0:
<Style x:Key="placeHolder" TargetType="{x:Type TextBox}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TextBox}">
<Grid>
<TextBox Text="{Binding Path=Text,
RelativeSource={RelativeSource TemplatedParent},
Mode=TwoWay,
UpdateSourceTrigger=PropertyChanged}"
x:Name="textSource"
Background="Transparent"
Panel.ZIndex="2"
BorderThickness="0,0,0,1"/>
<TextBox Text="{TemplateBinding Tag}" Background="{TemplateBinding Background}" Panel.ZIndex="1"
BorderThickness="0">
<TextBox.Style>
<Style TargetType="{x:Type TextBox}">
<Setter Property="Foreground" Value="Transparent"/>
<Style.Triggers>
<DataTrigger Binding="{Binding Path=Text, Source={x:Reference textSource}}" Value="">
<Setter Property="Foreground" Value="LightGray"/>
</DataTrigger>
</Style.Triggers>
</Style>
</TextBox.Style>
</TextBox>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
I have a ListView control with a list of system messages in it, and a corresponding "action" button that will help my user resolve the message:
If the message is an error message, I want the Foreground of the text and the action button (the [more...] part) to turn red. As you can see, it's not doing that.
I'm using a Style.Trigger bound to the message data's Severity to set the Foreground. This works fine for the TextBlock in the DataTemplate, but fails to affect the Button in that Template. My XAML looks like this:
<ListView x:Name="ImageCenterStatus" Background="{DynamicResource SC.ControlBrush}" Margin="10,22,10,0" FontSize="12" Grid.Column="1" ClipToBounds="True" ScrollViewer.HorizontalScrollBarVisibility="Disabled">
<ListView.ItemTemplate>
<DataTemplate>
<WrapPanel>
<TextBlock TextWrapping="WrapWithOverflow" cal:Message.Attach="[Event MouseUp] = [Action DoStatusAction($dataContext)]" Text="{Binding Path=DisplayedMessage}"/>
<Button x:Name="ActionButton" Content="{Binding Path=DisplayedActionLabel}" FontSize="12" cal:Message.Attach="DoStatusAction($dataContext)" Style="{DynamicResource SC.ActionButtonHack}"></Button>
</WrapPanel>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Style.Triggers>
<DataTrigger Binding="{Binding Path=Severity}" Value="Warning">
<Setter Property="Foreground" Value="#FFCE7A16" />
</DataTrigger>
<DataTrigger Binding="{Binding Path=Severity}" Value="Error">
<Setter Property="Foreground" Value="#FFD13636" />
</DataTrigger>
</Style.Triggers>
</Style>
</ListView.ItemContainerStyle>
</ListView>
The Button has its own Style, SC.ActionButtonHack, but I am very careful not to override the Foreground anywhere that style:
<Style x:Key="SC.ActionButtonHack" TargetType="{x:Type Button}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<ContentPresenter x:Name="contentPresenter" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Why does the TextBlock in the DataTemplate respond to the Foreground change in the Trigger, but not the Button?
What do I need to do to get the button to respect the Foreground change?
Bind TextElement.Foreground of ContentPresenter to ListViewItem's foreground to get it work:
<Style x:Key="SC.ActionButtonHack" TargetType="{x:Type Button}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<ContentPresenter x:Name="contentPresenter"
TextElement.Foreground="{Binding Foreground,
RelativeSource={RelativeSource Mode=FindAncestor,
AncestorType=ListViewItem}}"
HorizontalAlignment="Center"
VerticalAlignment="Center" Margin="0"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
OR
Either bind it on Button itself:
<Button x:Name="ActionButton"
Foreground="{Binding Foreground, RelativeSource={RelativeSource
Mode=FindAncestor, AncestorType=ListViewItem}}"
Content="{Binding Path=Name}" FontSize="12"
Style="{DynamicResource SC.ActionButtonHack}"/>
I'm using the WPF Toolkit for a .Net 4.0 application written in C#. I have a Chart containing a Column Series bound to a dictionary. The chart works fine but I'd like to show the actual value of each column, either in a textbox below each column, in the middle of each column, or on top of each column. I've been searching for a while and haven't been able to find any information on this. I set up a style for the chart as well as the ColumnSeries, but have not made any progress yet. Any suggestions?
My Chart xaml is:
xmlns:DV="clr-namespace:System.Windows.Controls.DataVisualization;assembly=System.Windows.Controls.DataVisualization.Toolkit"
xmlns:DVC="clr-namespace:System.Windows.Controls.DataVisualization.Charting;assembly=System.Windows.Controls.DataVisualization.Toolkit"
...
<Page.Resources>
<Style x:Key="MyChart" TargetType="DVC:Chart">
<Setter Property="PlotAreaStyle">
<Setter.Value>
<Style TargetType="Grid">
<Setter Property="Background" Value="#FF2D2D30" />
</Style>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="NoLegend" TargetType="DV:Legend">
<Setter Property="Visibility" Value="Hidden" />
<Setter Property="Width" Value="0" />
</Style>
<Style x:Key="ColumnSeriesStyle" TargetType="{x:Type DVC:ColumnSeries}">
<Setter Property="IsTabStop" Value="False"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type DVC:ColumnSeries}">
<Canvas x:Name="PlotArea" Visibility="Visible">
<TextBox Text="{Binding Path=Value.Value}" IsReadOnly="True"/>
</Canvas>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Page.Resources>
...
<DVC:Chart Name="TempChart" Style="{StaticResource MyChart}" LegendStyle="{StaticResource NoLegend}">
<DVC:Chart.Series>
<DVC:ColumnSeries IndependentValueBinding="{Binding Path=Value.Value}"
DepdendentValueBinding="{Binding Path=Value.Value}"
ToolTip="{Binding Path=Value.Value}"
Style="{StaticResource ColumnSeriesStyle}">
<DVC:ColumnSeries.DependentRangeAxis>
<DVC:LinearAxis x:Name="TempYAxis"
</DVC:ColumnSeries.DependentRangeAxis>
</DVC:Chart.Series>
</DVC:Chart>
I managed to style my ColumnSeries with this:
<Style x:Key="ColumnSeriesStyle" TargetType="{x:Type DVC:ColumnSeries}">
<Setter Property="IsTabStop" Value="False"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type DVC:ColumnSeries}">
<Canvas x:Name="PlotArea" Visibility="Visible">
<!-- Actual Values -->
<ListBox x:Name="ActualValueListBox" HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"
Background="{StaticResource WindowBackground}" Foreground="#FFBB702F" BorderBrush="#FF2D2D30" ItemsSource="{Binding}" >
<ListBox.ItemTemplate>
<DataTemplate>
<TextBox HorizontalAlignment="Center" VerticalAlignment="Center" TextAlignment="Center" FontSize="12"
Foreground="{StaticResource ValueForeground}" Background="{StaticResource ValueBackground}" Width="40"
Text="{Binding Path=Value.Value}" />
</DataTemplate>
</ListBox.ItemTemplate>
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<UniformGrid Rows="1" Height="20"
Width="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type DVC:ColumnSeries}}, Path=ActualWidth}"/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
</Canvas>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>