I have a couple Comboboxes which use a DataTemplate and I am not able to set a Tooltip inside the DataTemplate to display. The DataTemplate utilizes a Textblock with a couple of <Run>'s. The Textblock inside the DataTemplate displays the data data properly except for the Tooltip (nothing pops up).
If I add the Tooltip directly to the Combobox it works but I do not want to do this because I would have to add the Tooltip to each Combobox that uses that DataTemplate.
Here is my ComboBox code
<ComboBox ItemsSource="{Binding Path=Items}"
SelectedItem="{Binding Path=HeaderRecord.Item}"
ItemTemplate="{StaticResource ItemTemplate}" />
Here is my Data Template
<DataTemplate x:Key="ItemTemplate" DataType="models:Item">
<TextBlock TextTrimming="CharacterEllipsis"
TextWrapping="NoWrap"
ToolTip="{Binding Path=Description, Mode=OneWay}">
<Run Text="{Binding Path=ItemNumber, Mode=OneWay}" />
<Run Text=": " />
<Run Text="{Binding Path=Description, Mode=OneWay}" />
</TextBlock>
</DataTemplate>
Related
I am currently working on a project using MVVM pattern and can't find anywhere a solution how to bind an ObservableCollection to a TabControl which has a template for an item of it.
For example, this is where I got so far:
<TabControl ItemsSource="{Binding ConnStringBufferOC}">
<TabControl.ItemTemplate>
<DataTemplate>
<Grid>
<TextBox Text="{Binding Username}"/>
<!-- Controls here -->
</Grid>
</DataTemplate>
</TabContro.ItemTemplate>
</TabControl>
This however only partialy works. It creates controls in the tab header area instead of the tab content area. I would want to bind each item to a new tab which has a header of a bound source from OC, for example:
Header="{Binding Name}"
And in the content area of each tab I would like to have controls, which have contents bound from the ObservableCollection in this example ConnStringBufferOC. So every tab has same controls only content bound to the controls is different.
You need to specify ContentTemplate for tab content and ItemTemplate for tab header
<TabControl ItemsSource="{Binding ConnStringBufferOC}">
<TabControl.ContentTemplate>
<DataTemplate>
<Grid>
<TextBox Text="{Binding Username}"/>
<!-- Controls here -->
</Grid>
</DataTemplate>
</TabControl.ContentTemplate>
<TabControl.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding Name}"/>
</DataTemplate>
</TabControl.ItemTemplate>
</TabControl>
I have a TreeView bound to an MVVM observable collection.
My item template is composed by an image and a textblock like the following code show:
<HierarchicalDataTemplate x:Key="TreeViewItemTemplate" ItemsSource="{Binding Items, Mode=OneWay, NotifyOnSourceUpdated=True}">
<TreeViewItem>
<TreeViewItem.Header>
<StackPanel Orientation="Horizontal">
<Image
Margin="-20,0,5,0"
Source="{Binding Icon, Converter={StaticResource TreeViewIconConverter}, Mode=OneWay}"
Style="{DynamicResource SmallIcon}"/>
<Label Content="{Binding Label}"/>
</StackPanel>
</TreeViewItem.Header>
</TreeViewItem>
</HierarchicalDataTemplate>
The problem happens when you Click over an item. If the Mouse cursor is over the StackPanel, the selection will not happen.
I have included also a screenshot to make this more clear.
Of course this happens because the StackPanel is now over the selection area.
Is there any workaround?
I found the answer by myself.
When you customize the TreeView using an hierarchical data template then you should not replicate the TreeViewItem.Header template because at runtime WPF will create one for you.
So, in order to have a custom TreeViewItem this code is enough:
<HierarchicalDataTemplate x:Key="TreeViewItemTemplate" ItemsSource="{Binding Items, Mode=OneWay, NotifyOnSourceUpdated=True}">
<StackPanel Orientation="Horizontal">
<Image
Margin="0,0,5,0"
Source="{Binding Icon, Converter={StaticResource TreeViewIconConverter}, Mode=OneWay}"
Style="{DynamicResource SmallIcon}"/>
<Label Content="{Binding Label}"/>
</StackPanel>
</HierarchicalDataTemplate>
I have a GridView cell in a ListView that is defined as a TextBlock and bound to a string on my ViewModel. I want to be able to change parts of the text into hyperlinks and part into different colors programatically.
Here is the XAML for the GridView cell:
<GridViewColumn.CellTemplate>
<DataTemplate>
<Border BorderThickness="2" BorderBrush="#dfdfdf" HorizontalAlignment="Stretch">
<TextBlock Text="{Binding Data}" Margin="3"/>
</Border>
</DataTemplate>
</GridViewColumn.CellTemplate>
And here's what it looks like at the moment:
An example of the text that is bound would be:
<color:#ff0000>Test item</color>
Test item 2
<link:http://www.google.com>Test hyperlink</link>
I have no problem with the regex to parse the bound text and pull out the required information but how would I go about changing the TextBlock into different colors and add a hyperlink?
Thanks in advance
You can put multiple Run elements inside a TextBlock and style then however you like.
Here is an example with a working hyperlink which even supports MVVM :)
<GridViewColumn.CellTemplate>
<DataTemplate>
<Border BorderThickness="2" BorderBrush="#dfdfdf" HorizontalAlignment="Stretch">
<TextBlock Margin="3">
<Run Text="{Binding Data}" />
<Run Text="Some more data" Background="Red" />
<Run Text="Click Me" Foreground="Blue" TextDecorations="Underline" >
<i:Interaction.Triggers>
<i:EventTrigger EventName="MouseDown">
<local:EventToCommand Command="{Binding LinkClickCommand, RelativeSource={RelativeSource FindAncestor, AncestorType=Window}}" />
</i:EventTrigger>
</i:Interaction.Triggers>
</Run>
</TextBlock>
</Border>
</DataTemplate>
</GridViewColumn.CellTemplate>
Note:
The Interaction.Triggers are from System.Windows.Interactivity and the EventToCommand from MVVMLight.
Similar to Blachshma's answer, but using a hyperlink right in there with the Run objects:
<TextBlock>
<Run Text="{Binding Data}" />
<Run Text="Some more data" Background="Red" />
<Hyperlink Command="{Binding Path=Command}">
<TextBlock Text="{Binding Path=Text}"/>
</Hyperlink>
</TextBlock>
Clearly I have a Command and Text properties to bind to for the hyperlink. Will look exactly the same, but will also respond to the command's CanExecute predicate (hyperlinks go grey).
I have a treeview inside of a dockpanel and all of the elements of the treeview are inside HierarchicalDataTemplates. Here is the code:
<DockPanel Margin="10,10,0,0" VerticalAlignment="Stretch" Grid.Row="0" Grid.RowSpan="5" Grid.Column="0">
<DockPanel.Resources>
<src:TreeViewFilter x:Key="MyList" />
<HierarchicalDataTemplate DataType="{x:Type src:TreeViewParent}" ItemsSource="{Binding Path=OrderAttributes}">
<TextBlock Text="{Binding Path=Name}" FontSize="24"/>
</HierarchicalDataTemplate>
<HierarchicalDataTemplate DataType="{x:Type src:OrderAttribute}" ItemsSource="{Binding Path=OrderAttributes}">
<TextBlock Text="{Binding Path=NameAndCount}" FontSize="16"/>
</HierarchicalDataTemplate>
</DockPanel.Resources>
<TreeView Name="treeView1" BorderThickness="2" ItemsSource="{Binding Source={StaticResource MyList}, UpdateSourceTrigger=PropertyChanged}" TreeViewItem.Selected="treeViewFilter"/>
</DockPanel>
As you can see, the DockPanel wraps around the TreeView. The icons I am trying to add would be in the second HierarchicalDataTemplate which binds to a string and displays as a textbox. Depending on the name of the "NameAndCount", I would choose an icon to be displayed next to it on the left.
Any ideas on a solution for my example? Or do I need to think about using different templates like StackPanel?
Add an Image-Control wherever you want, bind its Source to "NameAndCount" and use a IValueConverter to convert it to an image-path.
I have a data bound Listbox as shown below. I want the textblock that holds the data to wrap. And I have not been able to.
What is the problem here?
Here is my code:
<DataTemplate x:Key="policyLbTemplate">
<StackPanel>
<TextBlock Text="{Binding name}" FontWeight="Bold"/>
<TextBlock Text="{Binding description}" TextWrapping="Wrap" />
</StackPanel>
</DataTemplate>
<ListBox VerticalAlignment="Stretch" HorizontalAlignment="Stretch" ItemsSource="{Binding Policies}"
ItemTemplate="{StaticResource policyLbTemplate}"
HorizontalContentAlignment="Stretch" />
You need to add one property to the list box: ScrollViewer.HorizontalScrollBarVisibility="Disabled", then the text will wrap (otherwise it grows offscreen). I have done it in the following code and it works fine for me.
<ListBox Name="lstbIcons" HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"
VerticalAlignment="Stretch" ScrollViewer.HorizontalScrollBarVisibility="Disabled">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
<TextBlock Text="{Binding UserActionName}" FontWeight="Bold"/>
<TextBlock Text="{Binding Description}" TextWrapping="Wrap" />
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
This is most likely because there is nothing restricting the width of the TextBlock so that it is growing offscreen. Do Horizontal scrollbars appear?
See the following related questions and try the solutions described:
WP7 TextBlock inside a ListBox not wrapping text
Force TextBlock to wrap in WPF ListBox
windows phone 7 TextBlock TextWrapping not honored in listbox
http://social.msdn.microsoft.com/forums/en-US/wpf/thread/37236ac6-05c3-4acc-baca-abc871ba64e0