尝试在Windows Phone 7应用程序中为Telerik列表框创建项目模板时出现“创建模板失败”错误？

Question

我在C＃中的 Windows Phone 7 应用中有 Telerik RadDataBoundListbox 。我想为列表项添加项目模板。我在Visual Studio 2012中执行以下操作：

• 右键单击“文档大纲”中的列表框
• 选择修改其他模板
• 选择修改模板
• 选择创建空

当我这样做时，我在弹出的对话框中收到错误消息“创建模板失败”。

我注意到的一件事是编辑其他模板中的无选项到编辑生成的项目（ItemTemplate）“上下文菜单，就像有一个标准列表框（非Telerik）。创建/编辑Telerik数据绑定列表框的项目模板需要做什么？

此Telerik帮助页面提供了有关创建项目模板的说明，但是通过直接XAML编辑和通过DataTemplate元素而不是ItemTemplate，但它适用于RadListBox而不是RadDataboundListBox。我想知道是否有办法直接从IDE中完成，特别是来自Expression Blend：

Telerik RadListBox Custom Item Template

下面是列表框的当前XAML。

<phone:PhoneApplicationPage
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
    xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:Helpers="clr-namespace:FindAPet_WP7.Helpers" xmlns:ViewModel="clr-namespace:FindAPet_WP7.ViewModel" xmlns:telerikPrimitives="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Primitives"
    x:Class="FindAPet_WP7.Page4"
    SupportedOrientations="Portrait" Orientation="Portrait"
    mc:Ignorable="d"
    shell:SystemTray.IsVisible="True">

    <phone:PhoneApplicationPage.Resources>
        <Helpers:EnumToDescAttrConverter x:Key="EnumToDescAttrConverter"/>
        <!-- <telerik:BoolToVisibilityConverter x:Key="BoolToVisibilityConverter"/> -->
        <Helpers:BusyVisibilityConverter x:Key="BusyVisibilityConverter" />
    </phone:PhoneApplicationPage.Resources>
    <phone:PhoneApplicationPage.FontFamily>
        <StaticResource ResourceKey="PhoneFontFamilyNormal"/>
    </phone:PhoneApplicationPage.FontFamily>
    <phone:PhoneApplicationPage.FontSize>
        <StaticResource ResourceKey="PhoneFontSizeNormal"/>
    </phone:PhoneApplicationPage.FontSize>
    <phone:PhoneApplicationPage.Foreground>
        <StaticResource ResourceKey="PhoneForegroundBrush"/>
    </phone:PhoneApplicationPage.Foreground>

    <phone:PhoneApplicationPage.DataContext>
        <ViewModel:ViewModelLocator/>
    </phone:PhoneApplicationPage.DataContext>
    <!--LayoutRoot is the root grid where all page content is placed-->
    <Grid x:Name="LayoutRoot" Background="Transparent">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>

        <!--TitlePanel contains the name of the application and page title-->
        <StackPanel Grid.Row="0" Margin="12,17,0,28">
            <TextBlock Text="{Binding Main.AppName, Mode=OneWay}" Style="{StaticResource PhoneTextNormalStyle}"/>
            <TextBlock Text="Choose Shelters" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}" FontSize="48" Height="55"/>
        </StackPanel>

        <!--ContentPanel - place additional content here-->
        <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
            <Grid.RowDefinitions>
                <RowDefinition Height="0*"/>
                <RowDefinition Height="8*"/>
                <RowDefinition/>
            </Grid.RowDefinitions>
            <telerikPrimitives:RadBusyIndicator 
                Content="Telerik Loading..." 
                Foreground="#FF9EC6EE" 
                IsRunning="True" 
                Opacity="0.75" 
                Margin="3,48,-14,5" 
                Visibility="{Binding Main.IsBusyLoading, Converter={StaticResource BusyVisibilityConverter}, FallbackValue=Collapsed, Mode=OneWay}" FontSize="48" Grid.RowSpan="2" d:IsHidden="True" />
            <Button x:Name="btnTest" Content="Test" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="10,0,0,0" Height="72" Grid.Row="2" Width="129" Command="{Binding Main.DisplayMessageCommand, Mode=OneWay}"/>
            <telerikPrimitives:RadDataBoundListBox x:Name="listShelters" ItemsSource="{Binding Main.ShelterList}" SelectedItem="{Binding Main.SelectedShelter.IsChecked, Mode=TwoWay}" SelectionChanged="listShelters_SelectionChanged" Visibility="{Binding Main.IsBusyLoading, ConverterParameter=true, Converter={StaticResource BusyVisibilityConverter}, Mode=OneWay}" EmptyContent="" IsCheckModeActive="True" IsCheckModeEnabled="True" ItemCheckedStateChanged="listShelters_ItemCheckedStateChanged" CheckModeDeactivatedOnBackButton="False" DisplayMemberPath="Name" LayoutUpdated="listShelters_LayoutUpdated" Loaded="listShelters_Loaded" ItemCheckedPath="IsChecked" Grid.Row="1"/>
        </Grid>
    </Grid>

</phone:PhoneApplicationPage>