I have a treeview with buckets and parts. Everything looks great except one feature. A property on bucket (bool IsEditable) allows the user to toggle editing on or off within the tree view for that node. But for some reason when wpf displays the collection of buckets in the treeview the togglebuttons do not show the proper text
Here is my xaml:
<Style TargetType="{x:Type ToggleButton}" x:Key="Editor">
<Style.Triggers>
<Trigger Property="IsChecked" Value="False">
<Setter Property="Content">
<Setter.Value>
<TextBlock Text="Edit"/>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsChecked" Value="True">
<Setter Property="Content">
<Setter.Value>
<TextBlock Text="Done"/>
</Setter.Value>
</Setter>
</Trigger>
</Style.Triggers>
</Style>
<DataTemplate x:Key="HierarchialItemTemplate">
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding BucketQty, UpdateSourceTrigger=PropertyChanged}"/>
<TextBlock Text=" "/>
<TextBlock Text="{Binding PartNum}"/>
</StackPanel>
</DataTemplate>
<DataTemplate x:Key="DisplayBucket">
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding Sequence}"/>
<TextBlock Text=" "/>
<TextBlock Text="{Binding Description}"/>
<ToggleButton IsChecked="{Binding IsEditable}" Width="25" Style="{StaticResource Editor}"/>
</StackPanel>
</DataTemplate>
<DataTemplate x:Key="EditBucket">
<StackPanel Orientation="Horizontal">
<TextBox Text="{Binding Sequence}"/>
<TextBlock Text=" "/>
<TextBox Text="{Binding Description}"/>
<ToggleButton IsChecked="{Binding IsEditable}" Width="25" Style="{StaticResource Editor}"/>
</StackPanel>
</DataTemplate>
<HierarchicalDataTemplate x:Key="TreeTemplate"
DataType="{x:Type domain:Bucket}"
ItemsSource="{Binding Parts}"
ItemTemplate="{StaticResource HierarchialItemTemplate}"
>
<ContentPresenter Content="{Binding}"
Style="{DynamicResource TreeNodeStyle}"/>
</HierarchicalDataTemplate>
<Style TargetType="{x:Type ContentPresenter}" x:Key="TreeNodeStyle">
<Setter Property="ContentTemplate" Value="{StaticResource DisplayBucket}"/>
<Style.Triggers>
<DataTrigger Binding="{Binding IsEditable}" Value="True">
<Setter Property="ContentTemplate" Value="{StaticResource EditBucket}"/>
</DataTrigger>
</Style.Triggers>
</Style>
The above is window.resources. In the Grid is
<TreeView x:Name="Buckets"
ItemsSource="{Binding Model.Job.Buckets}"
ItemTemplate="{StaticResource TreeTemplate}"
>
So for whatever reason when I add nodes I get a bucket with a toggle button, but the toggle button text only shows up for the last node added. If I click a toggle button, the text disappears out of the previous toggle button and shows up in the one just clicked. The effect is similar to what this person experienced, but I have no idea what the guy was talking about who answered the question ToggleButton Style only works on last ToggleButton.
Any thoughts?
You have couple of options (ordered from least to most dramatic):
1) Content
<Style TargetType="{x:Type ToggleButton}" x:Key="Editor">
<Style.Triggers>
<Trigger Property="IsChecked" Value="False">
<Setter Property="Content" Value="Edit" />
</Trigger>
<Trigger Property="IsChecked" Value="True">
<Setter Property="Content" Value="Done" />
</Trigger>
</Style.Triggers>
</Style>
2) ContentTemplate
<Style TargetType="{x:Type ToggleButton}" x:Key="Editor">
<Style.Triggers>
<Trigger Property="IsChecked" Value="False">
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<TextBlock Text="Edit"/>
</DataTemplate>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsChecked" Value="True">
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<TextBlock Text="Done"/>
</DataTemplate>
</Setter.Value>
</Setter>
</Trigger>
</Style.Triggers>
</Style>
3) ControlTemplate
<Style TargetType="{x:Type ToggleButton}" x:Key="Editor">
<Style.Triggers>
<Trigger Property="IsChecked" Value="False">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<TextBlock Text="Edit"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsChecked" Value="True">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<TextBlock Text="Done"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Trigger>
</Style.Triggers>
</Style>
The reason why your approach didn't work is that TextBlock control is created only once (i.e. not created as part of template - ControlTemplate or DataTemplate).
Related
I have some textbox whith style from a template like this
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TextBox}">
<Border Background="White" CornerRadius="8" x:Name="container">
<Grid>
<TextBox Background="White"
FontFamily="Poppins" FontSize="11"
VerticalAlignment="Center"
Padding="5"
Name="SearchBox"
Foreground="Black"
Margin="2"
BorderThickness="0"
Text="{TemplateBinding Text}"
/>
<TextBlock Text="{TemplateBinding Tag}" Name="Placeholder"
FontSize="11" FontFamily="Poppins"
Foreground="Gray"
VerticalAlignment="Center"
IsHitTestVisible="False"
Grid.Column="1" Padding="5" Margin="6,0,0,0">
<TextBlock.Style>
<Style TargetType="{x:Type TextBlock}">
<Style.Triggers>
<DataTrigger Binding="{Binding Text, ElementName=SearchBox}" Value="">
<Setter Property="Visibility" Value="Visible"></Setter>
</DataTrigger>
</Style.Triggers>
<Setter Property="Visibility" Value="Hidden"></Setter>
</Style>
</TextBlock.Style>
</TextBlock>
</Grid>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Background" Value="#E6E6E6" TargetName="container"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Just to show an placeholder. This works but something goes wrong when I try to bind property Text to a view model.
<TextBox Text="{Binding NombreCliente}"
Style="{StaticResource SearchTextBox}"
Grid.Row="1"
Tag="Nombre"/>
I've done test and while the textbox have this style the binding always return null or "".
I find in other ask that there's something whith binding parent and they solve whith this
<TextBox Text="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Text,
UpdateSourceTrigger=PropertyChanged}"....
But if i bind text to a template parent, how do I bind to viewmodel?
A template of a TextBox should not contain another TextBox control.
Replace it with a ScrollViewer and set the FontFamily and FontSize properties using Style setters:
<ControlTemplate TargetType="{x:Type TextBox}">
<Border Background="White" CornerRadius="8" x:Name="container">
<Grid>
<ScrollViewer x:Name="PART_ContentHost" Margin="2" Focusable="false" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden"/>
<TextBlock Text="{TemplateBinding Tag}" Name="Placeholder"
FontSize="11" FontFamily="Poppins"
Foreground="Gray"
VerticalAlignment="Center"
IsHitTestVisible="False"
Grid.Column="1" Padding="5" Margin="6,0,0,0">
<TextBlock.Style>
<Style TargetType="{x:Type TextBlock}">
<Style.Triggers>
<DataTrigger Binding="{Binding Text, ElementName=SearchBox}" Value="">
<Setter Property="Visibility" Value="Visible"></Setter>
</DataTrigger>
</Style.Triggers>
<Setter Property="Visibility" Value="Hidden"></Setter>
</Style>
</TextBlock.Style>
</TextBlock>
</Grid>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Background" Value="#E6E6E6" TargetName="container"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
If this is a template for use in a TextBox, then you have created it incorrectly.
In fact, instead of giving the TextBox room to display the text, you have overlapped it on top with another TextBox that has nothing to do with the one this template will use.
TextBox to display text looks in its template for a ScrollViewer named PART_ContentHost.
And all the property settings of the TextBox must be moved to Setters outside the template.
Example template:
<Style TargetType="TextBox">
<Setter Property="Background" Value="White"/>
<Setter Property="FontFamily" Value="Poppins"/>
<Setter Property="FontSize" Value="11"/>
<Setter Property="Padding" Value="5"/>
<Setter Property="Foreground" Value="Black"/>
<Setter Property="Margin" Value="2"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TextBox}">
<Border Background="{TemplateBinding Background}"
CornerRadius="8" x:Name="container"
Padding="{TemplateBinding Padding}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<Grid>
<ScrollViewer x:Name="PART_ContentHost"
Focusable="false"
HorizontalScrollBarVisibility="Hidden"
VerticalScrollBarVisibility="Hidden"/>
<TextBlock Text="{TemplateBinding Tag}" Name="Placeholder"
FontSize="11" FontFamily="Poppins"
Foreground="Gray"
VerticalAlignment="Center"
IsHitTestVisible="False"
Grid.Column="1" Padding="5" Margin="6,0,0,0">
<TextBlock.Style>
<Style TargetType="{x:Type TextBlock}">
<Style.Triggers>
<DataTrigger Binding="{Binding Text, ElementName=SearchBox}" Value="">
<Setter Property="Visibility" Value="Visible"></Setter>
</DataTrigger>
</Style.Triggers>
<Setter Property="Visibility" Value="Hidden"/>
</Style>
</TextBlock.Style>
</TextBlock>
</Grid>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Background" Value="#E6E6E6" TargetName="container"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
I am trying to change the foreground color of ComboBoxItem, however it does not apply, what am I doing wrong? Also I'm trying to change the foreground color of hovers on ComboBoxItem which does not work as well.
Here is my xaml:
<ComboBox Foreground="Yellow" Name="txtDispatch" HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="0,0,15,0" Grid.Column="2" Grid.Row="0" materialDesign:HintAssist.Hint="Select Dispatch" SelectionChanged="txtDispatch_SelectionChanged">
<ComboBox.ItemTemplate >
<DataTemplate >
<CheckBox Foreground="Yellow" Name="chkDispatch" Width="220" Checked="txtDispatch_Checked" Unchecked="txtDispatch_Checked" Content="{Binding Dispatch.id}" IsChecked="{Binding Check_Status}" CommandParameter="{Binding Dispatch.id}" />
</DataTemplate>
</ComboBox.ItemTemplate>
</ComboBox>
<ComboBox Foreground="Black">
<ComboBox.Style>
<Style TargetType="ComboBox">
<Setter Property="ItemContainerStyle">
<Setter.Value>
<Style TargetType="ComboBoxItem">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="False">
<Setter Property="Background" Value="White"/> <!--Optional-->
<Setter Property="Foreground" Value="Red"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="White"/> <!--Optional-->
<Setter Property="Foreground" Value="Yellow"/>
</Trigger>
</Style.Triggers>
</Style>
</Setter.Value>
</Setter>
</Style>
</ComboBox.Style>
<!-- Items List-->
<ComboBoxItem>1</ComboBoxItem>
<ComboBoxItem>2</ComboBoxItem>
<ComboBoxItem>3</ComboBoxItem>
<ComboBoxItem>4</ComboBoxItem>
<ComboBoxItem>5</ComboBoxItem>
</ComboBox>
Very Simple. Use the style.
I'm not entirely sure what I'm doing incorrect but it appears that my style trigger is not being recognized. I want to change the color of the Stroke when the listbox item is selected.
<ListBox ItemsSource="{Binding CityList}" DisplayMemberPath="Name" SelectionMode="Extended"
VirtualizingPanel.IsVirtualizing="true"
VirtualizingPanel.VirtualizationMode="Recycling"
Background="Brown">
<ListBox.ItemContainerStyle>
<Style TargetType="{x:Type ListBoxItem}">
<Setter Property="Canvas.Left" Value="{Binding Longitude, Converter={StaticResource longValueConverter}, ConverterParameter={StaticResource mapWidth}}"/>
<Setter Property="Canvas.Top" Value="{Binding Latitude, Converter={StaticResource latValueConverter}, ConverterParameter={StaticResource mapHeight}}"/>
<Setter Property="BorderThickness" Value="3" />
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<Grid>
<Ellipse x:Name="indicator"
Fill="#FF000000"
Height="10"
Width="10"
Stroke="Transparent"
StrokeThickness="2"/>
</Grid>
</DataTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter TargetName="indicator" Property="Stroke" Value="Red"/>
</Trigger>
</Style.Triggers>
</Style>
</ListBox.ItemContainerStyle>
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<Canvas IsItemsHost="True"
Width="{StaticResource mapWidth}"
Height="{StaticResource mapHeight}"/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
You can't use TargetName in a Style Setter.
Instead of setting the ContentTemplate property, you may set the Template property and add the Trigger to the ControlTemplate.Triggers collection:
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListBoxItem">
<Grid>
<Ellipse x:Name="indicator"
Fill="#FF000000"
Height="10"
Width="10"
Stroke="Transparent"
StrokeThickness="2"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter TargetName="indicator" Property="Stroke" Value="Red"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
You may also add a ContentPresenter to the Grid in the ControlTemplate, which would display the elements of the ItemTemplate (if you later decide to declare one).
I am having a DataGrid containing some Jobs.
What every job is doing is shown in the RowDetails.
Here I got multiple problems:
Problem: Why is the Imageon the ToggleButton only shown on the Selected and the last Row ?
This is my xaml:
<DataGridTemplateColumn>
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<ToggleButton IsChecked="{Binding RelativeSource={RelativeSource AncestorType=DataGridRow}, Path=DetailsVisibility, Converter={StaticResource BoolToVisConverter}, Mode=TwoWay}">
<ToggleButton.Style>
<Style TargetType="ToggleButton">
<Style.Triggers>
<Trigger Property="IsChecked" Value="True">
<Setter Property="Content">
<Setter.Value>
<Image Source="..\Resources\ic_expand_less_48px.png" Height="16" Width="16" />
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsChecked" Value="{x:Null}">
<Setter Property="Content">
<Setter.Value>
<Image Source="..\Resources\ic_expand_more_48px.png" Height="16" Width="16" />
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsChecked" Value="False">
<Setter Property="Content">
<Setter.Value>
<Image Source="..\Resources\ic_expand_more_48px.png" Height="16" Width="16" />
</Setter.Value>
</Setter>
</Trigger>
</Style.Triggers>
</Style>
</ToggleButton.Style>
</ToggleButton>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
when Style uses a UIElement for Content property (Image in this case), it creates a single instance of that element. When Style is applied to multiple controls only one of them display Content because UIElement cannot have multiple parents.
That is why in most cases custom templates are used. ToggleButton has ContentTemplate property to customize the appearance of content part: (the same code for other two triggers)
<Trigger Property="IsChecked" Value="False">
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<Image Source="..\Resources\ic_expand_more_48px.png" Height="16" Width="16" />
</DataTemplate>
</Setter.Value>
</Setter>
</Trigger>
I know another method with non-shared resource:
<Image x:Key="ExpandMoreImg" x:Shared="False"
Source="..\Resources\ic_expand_more_48px.png" Height="16" Width="16" />
<Trigger Property="IsChecked" Value="False">
<Setter Property="Content" Value="{StaticResource ExpandMoreImg}"/>
</Trigger>
Shared is set to false and there will be an instance of Image for each usage
I am trying to change the foreground color of ComboBoxItem, however it does not apply, what am I doing wrong? Also I'm trying to change the foreground color of hovers on ComboBoxItem which does not work as well.
Here is my xaml:
<ComboBox x:Name="tab5_2_num" ItemsSource="{Binding}" FontSize="13" FontFamily="/WPF;component/Font/#Agency FB" Margin="722,46,406,281" BorderThickness="1,1,1,4" Height="30">
<ComboBox.ItemTemplate>
<DataTemplate>
<Label Content="{Binding}" />
</DataTemplate>
</ComboBox.ItemTemplate>
<ComboBox.ItemContainerStyle>
<Style TargetType="{x:Type ComboBoxItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ComboBoxItem}">
<Label x:Name="lblCombo" Foreground="Black" FontFamily="/WPF;component/Font/#Agency FB" FontSize="13" Height="20" />
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter TargetName="lblCombo" Property="Background" Value="#FFF01F1F"/>
<Setter TargetName="lblCombo" Property="Foreground" Value="White" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ComboBox.ItemContainerStyle>
</ComboBox>
Since you have set Label in your ComboBoxItem's template, the Label set in DataTemplate won't work. So please try following code:
<ComboBox x:Name="tab5_2_num" Height="30" BorderThickness="1,1,1,4" FontFamily="/WPF;component/Font/#Agency FB" FontSize="13" ItemsSource="{Binding}">
<ComboBox.ItemContainerStyle>
<Style TargetType="{x:Type ComboBoxItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ComboBoxItem}">
<Label x:Name="lblCombo" Content="{Binding}" FontFamily="/WPF;component/Font/#Agency FB" FontSize="13" Foreground="Black" />
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter TargetName="lblCombo" Property="Background" Value="#FFF01F1F" />
<Setter TargetName="lblCombo" Property="Foreground" Value="White" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ComboBox.ItemContainerStyle>
</ComboBox>
It should work.
First of all I wonder if you see the Label content. You may need the following:
<Label Content={Binding} ... />