Setting Grid.Column using DataTrigger in WPF - c#

I am trying to set the Grid.Column property using a datatrigger:
<Style TargetType="ListBox">
<Style.Triggers>
<DataTrigger Binding="{Binding View}" Value="HistoryLeft">
<Setter Property="Visibility" Value="Hidden"/>
</DataTrigger>
<DataTrigger Binding="{Binding View}" Value="HistoryRight">
<Setter Property="Grid.Column" Value="0"/>
<Setter Property="Grid.ColumnSpan" Value="2"/>
</DataTrigger>
</Style.Triggers>
</Style>
The Grid.ColumnSpan works fine but the Grid.Column does not set. Any ideas?
The XAML for the Listbox is:
<ListBox ItemsSource="{Binding HistoryItemsRight}" BorderThickness="0,1,0,0" Grid.Row="0" Grid.Column="1" ItemsPanel="{StaticResource NoHorizontalScroll}" Background="White" ScrollViewer.VerticalScrollBarVisibility="Visible"
HorizontalContentAlignment="Stretch" ItemContainerStyle="{StaticResource HistoryItem}"
ScrollViewer.HorizontalScrollBarVisibility="Disabled">
<ListBox.Style>
<Style TargetType="ListBox">
<Style.Triggers>
<DataTrigger Binding="{Binding View}" Value="HistoryLeft">
<Setter Property="Visibility" Value="Hidden"/>
</DataTrigger>
<DataTrigger Binding="{Binding View}" Value="HistoryRight">
<Setter Property="Grid.Column" Value="0"/>
<Setter Property="Grid.ColumnSpan" Value="2"/>
</DataTrigger>
</Style.Triggers>
</Style>
</ListBox.Style>
<ListBox.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="/Resources/HistoryViewTemplates.xaml"/>
<ResourceDictionary>
<DataTemplate DataType="{x:Type viewModel:HistoryItemView}">
<Grid Style="{StaticResource HistoryItemGrid}">
<Grid.ToolTip>
<controls:HistoryViewToolTip></controls:HistoryViewToolTip>
</Grid.ToolTip>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="30" MinWidth="30"/>
<ColumnDefinition Width="60" MinWidth="50"/>
<ColumnDefinition Width="250*" MinWidth="100"/>
</Grid.ColumnDefinitions >
<TextBlock Text="{Binding Date, StringFormat=' HH:mm:ss'}" Grid.Column="1"/>
<TextBlock Text="{Binding Path}" Grid.Column="2" HorizontalAlignment="Stretch"/>
<Button FontWeight="Bold" Padding="2,0,2,0" Margin="0,0,2,0" Width="19" Command="{Binding OperationToRight}" Grid.Column="0" Style="{StaticResource RightSideHistoryButton}" />
</Grid>
</DataTemplate>
</ResourceDictionary>
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</ListBox.Resources>
</ListBox>

This might have to do with Dependency Property Value Precedence. You probably set the Column explicitly while the ColumnSpan uses the default value of one.

Related

Avoid filter textox in checkbox column in datagrid in wpf

I have one datagrid.The columns header name is binding from one xml file.
Now I need to add filter text box for header template from datagrid.
without textbox filter option the datagrid shown as per the below.
After adding filter text box the datagrid as shown as below
I don't want to show textbox in first column i.e checkbox column,how to do this?
The xaml code is attached below
<UserControl .....>
<UserControl.Resources>
<ResourceDictionary>
<DataGridTemplateColumn x:Key="CustomCheckBoxTemplate">
<DataGridTemplateColumn.HeaderTemplate>
<DataTemplate >
<CheckBox Name="ColumnHearderCheckBox" IsThreeState="True" PreviewMouseLeftButtonDown="OnHeaderCheckBoxMouseButtonDown" />
</DataTemplate>
</DataGridTemplateColumn.HeaderTemplate >
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<CheckBox PreviewMouseLeftButtonDown="OnCellCheckBoxPreviewMouseLeftButtonDown" IsChecked="{Binding RelativeSource={RelativeSource FindAncestor,
AncestorType=DataGridRow}, Path=IsSelected,Mode=TwoWay}"/>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn >
<ContextMenu x:Key="ColumnHeaderContextMenu"
FontSize="{Binding PlacementTarget.FontSize, RelativeSource={RelativeSource Self}}">
<ContextMenu.ItemContainerStyle>
<Style TargetType="{x:Type MenuItem}" >
<EventSetter Event= "Click" Handler="OnContextMenuItemClicked" />
<Setter Property="IsCheckable" Value="True" />
<Setter Property="Header" Value="{Binding Header}" />
<Style.Triggers>
<DataTrigger Binding="{Binding Visibility}" Value="Visible">
<Setter Property="IsChecked" Value="True"/>
</DataTrigger>
<DataTrigger Binding="{Binding Visibility}" Value="Collapsed">
<Setter Property="IsChecked" Value="False"/>
</DataTrigger>
<DataTrigger Binding="{Binding Visibility}" Value="Hidden">
<Setter Property="IsChecked" Value="False"/>
</DataTrigger>
</Style.Triggers>
</Style>
</ContextMenu.ItemContainerStyle>
</ContextMenu>
</ResourceDictionary>
</UserControl.Resources>
<Grid Margin="5,0,0,0">
<Grid.Resources>
<Style TargetType="{x:Type DataGridColumnHeader}" BasedOn="{StaticResource {x:Type DataGridColumnHeader}}">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
<Setter Property="Height" Value="30"/>
<Setter Property="Foreground" Value="WhiteSmoke"/>
<Setter Property="FontSize" Value="14"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type DataGridColumnHeader}" >
<Border x:Name="Border"
Padding="2"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<Grid x:Name="LayoutGrid">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="{Binding RelativeSource={RelativeSource TemplatedParent},
Path=ActualHeight}" />
</Grid.ColumnDefinitions>
<StackPanel Orientation="Vertical">
<TextBlock Text="{Binding Content, RelativeSource=
{RelativeSource Mode=TemplatedParent}}"/>
<TextBox x:Name="txtId" Width="100" />
</StackPanel>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<DataTemplate x:Key="CustomTemplate">
<StackPanel Orientation="Horizontal" >
<Image Source="{Binding Converter={StaticResource StringToImageConverter}}" Height="30" Width="30" Margin="30,0,0,0" HorizontalAlignment="Right"/>
</StackPanel>
</DataTemplate>
<ContextMenu x:Key="RowMenu" DataContext="{Binding DataContext, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=DataGrid}}">
<MenuItem Header="Delete" Command="{Binding DeleteCommand}" CommandParameter="{Binding SelectedItems, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=DataGrid}}" >
</MenuItem>
<MenuItem Header="Edit" Command="{Binding EditCommand}"/>
</ContextMenu>
<Style x:Key="DefaultRowStyle" TargetType="{x:Type DataGridRow}" BasedOn="{StaticResource {x:Type DataGridRow}}">
<Setter Property="ContextMenu" Value="{StaticResource RowMenu}" />
</Style>
</Grid.Resources>
<DataGrid x:Name="dataGrid" IsReadOnly="True" ItemsSource="{Binding PatientStudyList}" SelectionMode="{Binding SelectionMode, Converter={StaticResource SelectionModeToStringConverter}}"
AlternationCount="2" GridLinesVisibility="Horizontal" AutoGenerateColumns="False" BorderThickness="1"
RowStyle="{StaticResource DefaultRowStyle}" HorizontalAlignment="Stretch">
<i:Interaction.Triggers>
<i:EventTrigger EventName="Unloaded">
<i:InvokeCommandAction Command="{Binding DataGridUnloadedCommand}"/>
</i:EventTrigger>
</i:Interaction.Triggers>
<DataGrid.ColumnHeaderStyle>
<Style TargetType="{x:Type DataGridColumnHeader}" BasedOn="{StaticResource {x:Type DataGridColumnHeader}}">
<Setter Property="ContextMenu" Value="{StaticResource ColumnHeaderContextMenu}" />
<Setter Property="Height" Value="50" />
</Style>
</DataGrid.ColumnHeaderStyle>
</DataGrid>
</Grid>
</UserControl>
You are changing the DataGridColumnHeader.Template with a new ControlTemplate
The CustomCheckBoxTemplate is providing a DataGridTemplateColumn.HeaderTemplate as DataTemplate which targets the DataGridColumnHeader.ContentTemplate. However, your ControlTemplate doesn't use the DataGridColumnHeader.ContentTemplate internally, so the HeaderTemplate part of your CustomCheckBoxTemplate will be ignored.
If it works for you, just define the DataGridColumnHeader.ContentTemplate instead of the DataGridColumnHeader.Template in your style (will behave a little differently).
<Style TargetType="{x:Type DataGridColumnHeader}" BasedOn="{StaticResource {x:Type DataGridColumnHeader}}">
...
<!-- Do not define Property="Template" here -->
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<!-- Similar to your ControlTemplate, but the TemplateBinding parts need to be reworked -->
Otherwise use the DataGridColumnHeader.ContentTemplate inside your ControlTemplate.
<!-- Old -->
<TextBlock Text="{Binding Content, RelativeSource=
{RelativeSource Mode=TemplatedParent}}"/>
<!-- Replace by -->
<ContentPresenter
Content="{Binding Content, RelativeSource={RelativeSource Mode=TemplatedParent}}"
ContentTemplate="{TemplateBinding ContentTemplate}"/>
Didn't test all part, so there might still be errors in my suggestion.
Edit Actually, the last part about the ContentPresenter doesn't prevent the txtId textbox. Here is an idea where the ControlTemplate is using Triggers to change the visible parts based on the ContentTemplate property being set. Note I changed some minor details like the ColumnDefinition Width for my testing.
<ControlTemplate TargetType="{x:Type DataGridColumnHeader}" >
<Border x:Name="Border"
Padding="2"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<Grid>
<Grid x:Name="LayoutGrid"
Visibility="Collapsed">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<StackPanel Orientation="Vertical">
<TextBlock Text="{Binding Content, RelativeSource={RelativeSource Mode=TemplatedParent}}"/>
<TextBox x:Name="txtId" Width="100" />
</StackPanel>
</Grid>
<ContentPresenter
x:Name="TemplatedContent"
Visibility="Visible"
Content="{Binding Content, RelativeSource={RelativeSource Mode=TemplatedParent}}"
ContentTemplate="{TemplateBinding ContentTemplate}"/>
</Grid>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="ContentTemplate" Value="{x:Null}">
<Setter Property="Visibility" TargetName="TemplatedContent" Value="Collapsed"/>
<Setter Property="Visibility" TargetName="LayoutGrid" Value="Visible"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>

WPF Custom ComboBox Showing "System.Windows.Styles" on item

I created a custom WPF ComboBox like this:
<ComboBox
x:Name="ComboBoxBtn"
VerticalAlignment="Top"
HorizontalAlignment="Left"
Margin="0,0,0,-1"
Width="300"
ItemsSource="{Binding Source, RelativeSource={RelativeSource AncestorType=UserControl}}"
SelectedItem="{Binding Path=Selected, Mode=TwoWay, RelativeSource={RelativeSource AncestorType=UserControl}}"
IsSynchronizedWithCurrentItem="True">
<ComboBox.ItemTemplate>
<DataTemplate>
<ContentControl>
<Style TargetType="ContentControl">
<Style.Triggers>
<DataTrigger Binding="{Binding Favorite}" Value="True">
<Setter Property="Content">
<Setter.Value>
<Grid>
<Grid.Style>
<Style TargetType="Grid">
<Setter Property="Background" Value="#FFE6E6FA"/>
</Style>
</Grid.Style>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Label Content="{Binding}" Width="250" />
<Button Grid.Column="1" Command="{Binding AddCommandButton, ElementName=root}"
CommandParameter="{Binding}">+</Button>
</Grid>
</Setter.Value>
</Setter>
</DataTrigger>
<DataTrigger Binding="{Binding Favorite}" Value="False">
<Setter Property="Content">
<Setter.Value>
<Grid>
<Grid.Style>
<Style TargetType="Grid">
<Setter Property="Background" Value="Yellow"/>
</Style>
</Grid.Style>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Label Content="{Binding}" Width="250" />
<Button Grid.Column="1" Command="{Binding RemoveCommandButton, ElementName=root}"
CommandParameter="{Binding}">-</Button>
</Grid>
</Setter.Value>
</Setter>
</DataTrigger>
</Style.Triggers>
</Style>
</ContentControl>
</DataTemplate>
</ComboBox.ItemTemplate>
</ComboBox>
The Source binding contains a ObservableColleciton where the client has a Favorite field and is supposed to show a different background and a different button. But when I open the ComboBox all the items have:
"System.Windows.Styles"
Your problem is you are setting Style as Content in the Content Control.
<ContentControl>
<Style TargetType="ContentControl">
...
</Style>
</ContentControl>
In order to set the style of the content control you should add:
<ContentControl.Style>
So the code above will look like this:
<ContentControl>
<ContentControl.Style>
<Style TargetType="ContentControl">
...
</Style>
<ContentControl.Style>
</ContentControl>
EDIT
By the way your code is very complex for the simple task of changing the background. Here is a simplified version:
<ComboBox.ItemTemplate>
<DataTemplate>
<Grid Name="PART_GRID" Background="Yellow">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Label Content="{Binding}"
Width="250" />
<Button Name="PART_BUTTON"
Grid.Column="1"
Content="-"
Command="{Binding AddCommandButton, ElementName=root}"
CommandParameter="{Binding}" />
</Grid>
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding Favorite}"
Value="True">
<Setter TargetName="PART_GRID"
Property="Background"
Value="#FFE6E6FA" />
<Setter TargetName="PART_BUTTON"
Property="Content"
Value="+" />
<Setter TargetName="PART_BUTTON"
Property="Command"
Value="{Binding RemoveCommandButton, ElementName=root}" />
</DataTrigger>
</DataTemplate.Triggers>
</DataTemplate>
</ComboBox.ItemTemplate>
In my case, I found that I had:
<ComboBox>
<Style>
</Style>
</ComboBox>
which was directly adding a style as an item, which is similar to the solution above.

Hide and show a usercontrol placed inside a usercontrol

I have two user controls(A & B) placed on a particular user control(C). I want these control to come up or show only when button is clicked. I bound the visibility of A and B controls to properties but of no use. I applied styles also to hide/show but again no success.
Also I want usercontrol C to be stretched if in case both A and B controls are not visible.
Here is the usercontrol xaml where main datacontext is RunViewModelObject
<UserControl>
<UserControl.Resources>
<Style TargetType="{x:Type Control}" x:Key="RTMLOVPanel">
<Setter Property="Visibility" Value="Hidden" />
<Style.Triggers>
<DataTrigger Binding="{Binding LovPaneVisible, ElementName=RtmLovView, Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" Value="true">
<Setter Property="Visibility" Value="Visible" />
</DataTrigger>
</Style.Triggers>
</Style>
<Style TargetType="{x:Type Control}" x:Key="AttachmentPanel">
<Setter Property="Visibility" Value="Hidden" />
<Style.Triggers>
<DataTrigger Binding="{Binding AttachmentsPaneVisible, ElementName=AttachmentsView, Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" Value="true">
<Setter Property="Visibility" Value="Visible" />
</DataTrigger>
</Style.Triggers>
</Style>
<ControlTemplate x:Key="RtmLovTemplate" x:Name="RtmLovView">
<Shared:SidePaneView_RtmLov/>
</ControlTemplate>
<ControlTemplate x:Key="AttachmentsTemplate" x:Name="AttachmentsView">
<Shared:SidePaneView_Attachments/>
</ControlTemplate>
</UserControl.Resources>
<Grid DataContext="{Binding RunViewModelObject}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<ContentControl Grid.Column="0" Template="{StaticResource ResourceKey=RtmLovTemplate}"
DataContext="{Binding LovObject}" Style="{DynamicResource RTMLOVPanel}" />
<ContentControl Grid.Column="0" Template="{StaticResource ResourceKey=AttachmentsTemplate}"
DataContext="{Binding AttachmentsObject}" Style="{DynamicResource AttachmentPanel}" />
<Grid Grid.Column="1" >
<ContentControl x:Name="CCRunView" Loaded="UserControl_Loaded" Unloaded="UserControl_Unloaded" >
<ContentControl.Content>
<UC:UCDynamicRunForm Visibility="{Binding DataSourceControlVisibility, Converter={StaticResource ResourceKey=BoolToOppositeVisibilityConverter}}" DataContext="{Binding UCDynamicFormVMObject}"/>
</ContentControl.Content>
</ContentControl>
</Grid>
</Grid>
</UserControl>

Alteration Color Change for Listbox

I have a listbox and I want to change the color of every other row. I have tested the following code, but the colors are not changing. Am I missing something?
<ListBox Height="250" BorderThickness="0" ItemsSource="{Binding Path=Results}" AlternationCount="2">
<ListBox.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" FontFamily="Sagoe UI" FontSize="14" Text="{Binding FirstName, StringFormat='User: {0}'}" Padding="2" />
<TextBlock Grid.Column="1" FontFamily="Sagoe UI" FontSize="14" Text="{Binding Company, StringFormat='Company: {0}'}" Padding="2" />
<TextBlock Grid.Column="2" FontFamily="Sagoe UI" FontSize="14" Text="{Binding Dept, StringFormat='Department: {0}'}" Padding="2" >
</TextBlock>
</Grid>
</DataTemplate>
<ListBox.ItemTemplate>
Here is my style and the closing tags for resoruces and dictionary
<Style TargetType="{x:Type ListBoxItem}">
<Style.Triggers>
<Trigger Property="ItemsControl.AlternationIndex" Value="0">
<Setter Property="Background" Value="#19f39611"></Setter>
</Trigger>
<Trigger Property="ItemsControl.AlternationIndex" Value="1">
<Setter Property="Background" Value="#19000000"></Setter>
</Trigger>
</Style.Triggers>
</Style>
</ResourceDictionary>
</UserControl.Resources>
Wow Forgot I was using RadListBox, so the answer is change the opening and closing Control Tags To
<telerik:RadListBox></telerik:RadListBox>
Then
<Style TargetType="{x:Type telerik:RadListBoxItem}">
<Style.Triggers>
<Trigger Property="ItemsControl.AlternationIndex" Value="0">
<Setter Property="Background" Value="#19f39611"></Setter>
</Trigger>
<Trigger Property="ItemsControl.AlternationIndex" Value="1">
<Setter Property="Background" Value="#19000000"></Setter>
</Trigger>
</Style.Triggers>
</Style>
</ResourceDictionary>
</UserControl.Resources>

How can I change listbox selected item background and foreground?

<Window.Resources>
<Style x:Key="ListBoxStyle" TargetType="{x:Type ListBox}">
<Setter Property="Background" Value="{StaticResource ResourceKey=ListboxBack}"/>
<Setter Property="Foreground" Value="Green"/>
<Setter Property="Width" Value="284"/>
<Setter Property="Height" Value="332"/>
<Setter Property="Margin" Value="18,77,0,151"/>
<Setter Property="ItemTemplate" Value="{DynamicResource DataTemplate1}"/>
<Setter Property="HorizontalAlignment" Value="Left"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="Padding" Value="0,0,0,0"/>
</Style>
<DataTemplate x:Key="DataTemplate1">
<Grid Width="276" Height="36" Background="{x:Null}" Opacity="1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="0.069*"/>
<ColumnDefinition Width="0.931*"/>
</Grid.ColumnDefinitions>
<TextBlock x:Name="recback" Padding="40,0,0,0" Text="{Binding [0], FallbackValue=Number}" Width="Auto" HorizontalAlignment="Stretch" Margin="-1.899,0,-5.334,0" Grid.Column="0" FontSize="13.333" Height="38.277" VerticalAlignment="Top" Foreground="Black" Background="{x:Null}" Opacity="1" Grid.ColumnSpan="2" />
<Rectangle HorizontalAlignment="Stretch" Height="1" Margin="3.5,0" VerticalAlignment="Bottom" Width="Auto" Fill="White" Grid.ColumnSpan="2"/>
</Grid>
</DataTemplate>
</Window.Resources>
<ListBox Style="{StaticResource ResourceKey=ListBoxStyle}" BorderThickness="0" x:Name="listBox1" Foreground="White" FontSize="18" d:LayoutOverrides="VerticalAlignment" BorderBrush="{x:Null}" />
I create ListBox with DataTemplate. DataTemplate contains a Rectangle and a Textblock. When I select item in ListBox I want to change TextBlock foreground and Rectangle background. Could you help me?
Use a similar to the following approach. This way you will override the default Brushes with the specified x:Key used of this ListBox Only. Perhaps you need additional or different x:Keys to override
<ListBox>
<ListBox.Resources>
<SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="LightBlue" />
<SolidColorBrush x:Key="{x:Static SystemColors.HighlightTextBrushKey}" Color="Green" />
</ListBox.Resources>
</ListBox>
By reading again your question i understand that perhaps you also need DataTriggers in your DataTemplate.
You might also try something like this Notice that Forground and BackGround should be set in the style not in TextBlock for this code to work:
<TextBlock x:Name="recback" Padding="40,0,0,0" Text="{Binding [0], FallbackValue=Number}" Width="Auto"
HorizontalAlignment="Stretch" Margin="-1.899,0,-5.334,0" Grid.Column="0" FontSize="13.333" Height="38.277"
VerticalAlignment="Top" Opacity="1" Grid.ColumnSpan="2">
<TextBlock.Style>
<Style TargetType="{x:Type TextBlock}">
<Setter Property="Foreground" Value="Black"/>
<Setter Property="Background" Value="{x:Null}"/>
<Style.Triggers>
<DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ListBoxItem}}, Path=IsSelected}" Value="True">
<Setter Property="Foreground" Value="Red"/>
<Setter Property="Background" Value="Yellow"/>
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>

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