I have recently moved ContentControl on the View(xaml) inside a telerik RadPane like so:
<telerik:RadDocking.DocumentHost>
<telerik:RadSplitContainer Visibility="{Binding UserControlVisible}">
<telerik:RadPaneGroup>
<telerik:RadPane CanUserClose="False" Header="{Binding Operation}">
<ContentControl x:Name="ActiveItem" Margin="10" VerticalAlignment="Top" />
</telerik:RadPane>
</telerik:RadPaneGroup>
</telerik:RadSplitContainer>
</telerik:RadDocking.DocumentHost>
Since, I have done this my UserControls are not injected as the Content inside ContentControl. I have tried to explicitly bind Content Property on ContentControl to ActiveItem but that says, unable to find the associated view.
Any help will be much appreciated.
try to add a datatemplate to the current content:
<DataTemplate>
<ContentControl cal:View.Model="{Binding}" />
</DataTemplate>
Where cal is:
xmlns:cal="http://www.caliburnproject.org"
and bind the active item explicitly.
Now it looks like
<telerik:RadDocking.DocumentHost>
<telerik:RadSplitContainer Visibility="{Binding UserControlVisible}">
<telerik:RadPaneGroup>
<telerik:RadPane CanUserClose="False" Header="{Binding Operation}">
<ContentControl x:Name="ActiveItem" Margin="10" VerticalAlignment="Top" Content="{Binding ActiveItem}">
<ContentControl.ContentTemplate>
<DataTemplate>
<ContentControl cal:View.Model="{Binding}" />
</DataTemplate>
</ContentControl.ContentTemplate>
</ContentControl>
</telerik:RadPane>
</telerik:RadPaneGroup>
</telerik:RadSplitContainer>
</telerik:RadDocking.DocumentHost>
Related
On click of toggle button I want to show a context menu. As I want to change the visual appearance of context menu, I have created controltemplate and data template as below,
<TabItem>
<TabItem.HeaderTemplate>
<DataTemplate>
<ContextMenu ItemSource="{Binding Collection}">
<ContextMenu.Template>
<ControlTemplate>
<Grid Margin="10">
<ListBox Width="150" Height="70"/>
</Grid>
</ControlTemplate>
<ContextMenu.ItemTemplate>
<DataTemplate>
<StackPanel>
<CheckBox Content="{Binding Name}"/>
</StackPanel>
</DataTemplate>
</ContextMenu.ItemTemplate>
</ContextMenu.Template>
</ContextMenu>
</DataTemplate>
</TabItem.HeaderTemplate>
</TabItem>
Post this change I could see only a LisBox being shown clicking upon toggle button. I am not able to visualize the Data template that I had set (Checkbox). Data binding is also not working. Not able to figure out what could be the issue.
You should bind the ItemsSource property of the ListBox to the ItemsSource of the ContextMenu and define an ItemTemplate for the ListBox:
<ContextMenu ItemsSource="{Binding Collection}">
<ContextMenu.Template>
<ControlTemplate TargetType="ContextMenu">
<Grid Margin="10">
<ListBox ItemsSource="{TemplateBinding ItemsSource}" Width="150" Height="70">
<ListBox.ItemTemplate>
<DataTemplate>
<CheckBox Content="{Binding Name}"/>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
</ControlTemplate>
</ContextMenu.Template>
</ContextMenu>
What in the world is wrong with this ListBox? It is showing items as plain strings, not using the template I have provided:
<ListBox>
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Ellipse Width="20" Height="20" Fill="LightBlue" />
<TextBlock Text="{TemplateBinding Content}" Foreground="Red" />
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
<ListBox.Items>
<ListBoxItem>html</ListBoxItem>
<ListBoxItem>head</ListBoxItem>
<ListBoxItem>body</ListBoxItem>
<ListBoxItem>table</ListBoxItem>
<ListBoxItem>tr</ListBoxItem>
<ListBoxItem>td</ListBoxItem>
</ListBox.Items>
</ListBox>
From the Remarks section in the ItemTemplate MSDN page:
When you set an ItemTemplate on an ItemsControl, the UI is generated
as follows (using the ListBox as an example):
1.During content generation, the ItemsPanel initiates a request for the ItemContainerGenerator to create a container for each data item.
For ListBox, the container is a ListBoxItem. The generator calls back
into the ItemsControl to prepare the container.
2.Part of the preparation involves the copying of the ItemTemplate of the ListBox to be the ContentTemplate of the ListBoxItem.
3.Similar to all ContentControl types, the ControlTemplate of a ListBoxItem contains a ContentPresenter. When the template is applied,
it creates a ContentPresenter whose ContentTemplate is bound to the
ContentTemplate of the ListBoxItem.
4.Finally, the ContentPresenter applies that ContentTemplate to itself, and that creates the UI.
These steps are apparently not executed when you create ListBoxItem instances directly in XAML. It is however not strictly necessary to bind the ItemSource property. You may also directly set items like this:
<ListBox xmlns:sys="clr-namespace:System;assembly=mscorlib">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Ellipse Width="20" Height="20" Fill="LightBlue" />
<TextBlock Text="{TemplateBinding Content}" Foreground="Red" />
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
<ListBox.Items>
<sys:String>html</sys:String>
<sys:String>head</sys:String>
<sys:String>body</sys:String>
<sys:String>table</sys:String>
<sys:String>tr</sys:String>
<sys:String>td</sys:String>
</ListBox.Items>
</ListBox>
public class MyViewModel
{
public List<String> Items
{
get { return new List<String> { "html", "head", "body","table","tr","td" }; }
}
}
//This can be done in the Loaded event of the page:
DataContext = new MyViewModel();
Your XAML
<ListBox Margin="20" ItemsSource="{Binding Items}">
<ListBox.ItemTemplate>
<DataTemplate>
<Ellipse Width="20" Height="20" Fill="LightBlue" />
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding}" />
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
I have a button template:
<DataTemplate x:Key="TemplateTest">
<Button Margin="10" BorderThickness="2" Content="{Binding Text}" />
</DataTemplate>
I want to create a textbox and a button whose content is the same as the textbox's text.
<TextBox x:Name="TextBox" Margin="10">TextBox</TextBox>
<ContentControl DataContext="{Binding ElementName=TextBox}"
ContentTemplate="{StaticResource ResourceKey=TemplateTest}" />
But I don't get anything on the button in this way.
#DanPuzey's one still did not work for me in VS2012. Not sure why it did in Kaxaml
This did:
<TextBox x:Name="TextBox"
Margin="10"
Text="Hello World" />
<ContentControl Content="{Binding ElementName=TextBox,
Path=.}"
ContentTemplate="{StaticResource TemplateTest}" />
and
<DataTemplate x:Key="TemplateTest">
<Button Height="100"
Margin="10"
BorderThickness="2"
Content="{Binding Text}" />
</DataTemplate>
This is failing, quite simply, because you aren't setting the content of your content control: setting the DataContext doesn't change anything. Try this:
<ContentControl Content="{Binding ElementName=TextBox}" ContentTemplate="{StaticResource ResourceKey=TemplateTest}" />
The above worked for me in Kaxaml, but if it's not working for you then I'd suggest you try this instead, which explicitly binds to the text of the textbox:
<ContentControl Content="{Binding Text, ElementName=TextBox}" ContentTemplate="{StaticResource ResourceKey=TemplateTest}" />
first you should set the content of your contentControl to be binded to the text
<TextBox x:Name="TextBox" Margin="10">TextBox</TextBox>
<ContentControl Content="{Binding ElementName=TextBox,Path=Text}"
ContentTemplate="{StaticResource ResourceKey=TemplateTest}" />
now you need change the binding of the button:
<DataTemplate x:Key="TemplateTest">
<Button Margin="10" BorderThickness="2" Content="{Binding}" />
</DataTemplate>
I am not sure if {Binding ElementName=TextBox} sets the default Binding.Path.
You might try setting the Path to . : DataContext="{Binding ElementName=TextBox, Path=.}"
Or you can bind directly the Text property of your element:
<TextBox x:Name="TextBox" Margin="10">TextBox</TextBox>
<ContentControl DataContext="{Binding Text, ElementName=TextBox}"
ContentTemplate="{StaticResource ResourceKey=TemplateTest}" />
and
<DataTemplate x:Key="TemplateTest">
<Button Margin="10" BorderThickness="2" Content="{Binding}" />
</DataTemplate>
How can I pass the DataContext of LayoutRoot to the converter of the ContentControl inside the ListBox items template?
<Grid x:Name="LayoutRoot"
Background="White"
DataContext="{Binding Source={StaticResource myViewModel}}">
<StackPanel HorizontalAlignment="Left"
Margin="6,6,0,394"
Orientation="Vertical"
Width="200"
d:LayoutOverrides="Height">
<ListBox x:Name="listBox2"
ItemsSource="{Binding MyCollection, Mode=TwoWay}"
VerticalAlignment="Top"
Height="400">
<ListBox.ItemTemplate>
<DataTemplate>
<ContentControl Content="{Binding}"
ContentTemplate="{Binding Converter={StaticResource myConverter}}"/>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
<TextBox Text="{Binding Value1, Mode=TwoWay}"/>
</StackPanel>
</Grid>
I want to be able to touch the objects inside the DataContext from within the Converter and use them for TwoWay binding on controls within the ListBox item's DataTemplate.
Any ideas? Any suggestions?
Thank you.
I just got the DataContext up to the converter using:
<ContentControl Content="{Binding}"
ContentTemplate="{Binding Converter={StaticResource stringToDataTemplateConverter}, ConverterParameter={StaticResource myViewModel}}" />
Now I have another problem my dynamic property binding is not working.
(sorry for my bad english)
I'm not sure about what you are trying to do here but with SL 5 you can use RelativeSource to get the DataContext:
{Binding DataContext,RelativeSource={RelativeSource AncestorLevel=1,AncestorType=Grid}}
I have created a class Account.
Next, I have created another class ReorderWindowController which has a field/property SelectedAccount of type Account.
Finally, I have written ReorderWindow WPF window xaml file:
<Window ...
<Window.Resources>
<contollers:ReorderWindowController x:Key="WindowController" />
<DataTemplate DataType="{x:Type entities:Account}">
<Grid Width="140" Height="50" Margin="5">
<TextBlock Text="Some awesome text" />
<TextBlock Text="{Binding Name}" />
<TextBlock Text="Even more awesome text" />
</Grid>
</DataTemplate>
</Window.Resources>
<Grid>
<Grid
Name="AccountGrid"
DataContext="{Binding Source={StaticResource ResourceKey=WindowController},
Path=SelectedAccount}">
</Grid>
</Grid>
</Window>
When I run my code, AccountGrid is not showing anything. Why? How do I make object data bind to the Grid and how do I make it use my data template? Thanks.
Instead of a Grid use a ContentPresenter like this:
<Grid>
<ContentPresenter
Name="AccountGrid"
Content="{Binding Source={StaticResource ResourceKey=WindowController}, Path=SelectedAccount}">
</ContentPresenter>
</Grid>