#1,011 – ComboBox Data Binding Basics, Part III

February 18, 2014 5 Comments

To display the items in a ComboBox using something more than a simple string, you set the ItemTemplate of the ComboBox to define the layout of each item.  When you set the ItemTemplate, you don’t set the DisplayMemberPath property.  DisplayMemberPath defines the template for each item in the ComboBox to be a TextBlock that displays a single string.

Below, we set an item template for a ComboBox that binds to a collection of Actor objects so that we display an image and some information about the actor, for each item.

        <ComboBox ItemsSource="{Binding ActorList}" Margin="20"
                  SelectedItem="{Binding SelectedActor}">
            <ComboBox.ItemTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Horizontal">
                        <Image Source="{Binding Image}" Height="100"/>
                        <StackPanel Margin="10,0">
                            <TextBlock Text="{Binding FullName}" FontWeight="Bold" />
                            <TextBlock Text="{Binding Dates}"/>
                            <TextBlock Text="{Binding KnownFor}" FontStyle="Italic"/>
                        </StackPanel>
                    </StackPanel>
                </DataTemplate>
            </ComboBox.ItemTemplate>
        </ComboBox>
        <Label Content="{Binding SelectedActor.NameAndDates}"/>

As we select an item, notice that the ComboBox changes size, so that the surface can show the entire item.

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#968 – ListBox Data Binding Basics, part V

December 10, 2013 1 Comment

If you want to display the items in a ListBox using something more than a simple string, you can set the ItemTemplate of the ListBox and define the exact layout of each item.  When you set the ItemTemplate, you don’t set the DisplayMemberPath property.  DisplayMemberPath simple defines the template for each item in the ListBox to be a TextBlock that displays a single string.

In the example below, we set an item template for a ListBox that binds to a collection of Actor objects so that we display an image and some information about the actor, for each item.

        <ListBox Margin="15" Width="250" Height="250"
                 ItemsSource="{Binding ActorList}"
                 SelectedItem="{Binding SelectedActor}">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Horizontal">
                        <Image Source="{Binding Image}" Height="80"/>
                        <StackPanel Margin="5">
                            <TextBlock Text="{Binding FullName}" FontSize="12" FontWeight="Bold"/>
                            <TextBlock Text="{Binding Dates}"/>
                            <TextBlock Text="{Binding KnownFor}" Margin="0,5,0,0" FontStyle="Italic"/>
                        </StackPanel>
                    </StackPanel>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>

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#911 – Use ItemTemplate to Control Content on Tabs

September 20, 2013 2 Comments

You can use the ItemContainerStyle of a TabControl to dictate the content that appears on the tabs, creating a style that sets each TabItem’s HeaderTemplate.

As a slightly more straightforward way to do the same thing, you can just set the TabControl’s ItemTemplate property to a DataTemplate that defines the content for each tab.

        <TabControl Margin="5"
                    ItemsSource="{Binding RomanDudes}">
            <!-- Change ItemTemplate to control content on tabs -->
            <TabControl.ItemTemplate>
                <DataTemplate>
                    <StackPanel>
                        <Image Source="{Binding Image}" Height="50"/>
                        <TextBlock Text="{Binding Name}" HorizontalAlignment="Center"/>
                    </StackPanel>
                </DataTemplate>
            </TabControl.ItemTemplate>
            <!-- Change ContentTemplate to control main content -->
            <TabControl.ContentTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Horizontal" VerticalAlignment="Top"
                                Margin="10">
                        <Image Source="{Binding Image}" Height="80"/>
                        <StackPanel Margin="10">
                            <TextBlock Text="{Binding Name}"/>
                            <TextBlock Text="{Binding ReignStart}"/>
                            <TextBlock Text="{Binding ReignEnd}"/>
                            <TextBlock Text="{Binding KnownFor}"/>
                        </StackPanel>
                    </StackPanel>
                </DataTemplate>
            </TabControl.ContentTemplate>
        </TabControl>

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