Question

我是WPF的新手，我无法解决这个问题，希望你们可以帮忙解决这个问题。问题是DesignerItemTemplate在项目控件中不起作用，我试着直接将它用于我可以拖动它的一个项目。如果代码看起来很乱，请原谅我。提前致谢

<UserControl.Resources>
    <ControlTemplate x:Key="MoveThumbTemplate" TargetType="{x:Type s:MoveThumb}">
        <Rectangle Fill="Transparent" />
    </ControlTemplate>

    <!-- ResizeDecorator Template -->
    <ControlTemplate x:Key="ResizeDecoratorTemplate" TargetType="{x:Type Control}">
        <Grid>
            <StackPanel VerticalAlignment="Top" HorizontalAlignment="Left" Height="15" Width="130" Margin="0,-15,-81,0" IsHitTestVisible="False">
                <TextBox Text="R101" BorderBrush="Transparent" IsHitTestVisible="False"  Background="Transparent" Height="17" FontSize="7" Foreground="#FF6DF90C"   VerticalContentAlignment="Stretch" MinHeight="1"  HorizontalAlignment="Stretch" CharacterCasing="Upper"   />
            </StackPanel>

            <s:ResizeThumb Height="1" Cursor="SizeNS"  BorderBrush="#FF160DCD" BorderThickness="1"
                           VerticalAlignment="Top" HorizontalAlignment="Stretch"/>
            <s:ResizeThumb Width="1" Cursor="SizeWE"   BorderBrush="#FF160DCD" BorderThickness="1"
                           VerticalAlignment="Stretch" HorizontalAlignment="Left"/>
            <s:ResizeThumb Width="1" Cursor="SizeWE"    BorderBrush="#FF160DCD" BorderThickness="1"
                           VerticalAlignment="Stretch" HorizontalAlignment="Right"/>
            <s:ResizeThumb Height="1" Cursor="SizeNS"    BorderBrush="#FF160DCD" BorderThickness="1"
                           VerticalAlignment="Bottom" HorizontalAlignment="Stretch"/>
            <s:ResizeThumb Width="2" Height="2" Cursor="SizeNWSE"   BorderBrush="#FF81F110" BorderThickness="1"
                           VerticalAlignment="Top" HorizontalAlignment="Left"/>
            <s:ResizeThumb Width="2" Height="2" Cursor="SizeNESW"   BorderBrush="#FF81F110" BorderThickness="1"
                           VerticalAlignment="Top" HorizontalAlignment="Right"/>
            <s:ResizeThumb Width="2" Height="2" Cursor="SizeNESW"   BorderBrush="#FF81F110" BorderThickness="1"
                           VerticalAlignment="Bottom" HorizontalAlignment="Left"/>
            <s:ResizeThumb Width="2" Height="2" Cursor="SizeNWSE"  BorderBrush="#FF81F110" BorderThickness="1"
                           VerticalAlignment="Bottom" HorizontalAlignment="Right"/>
        </Grid>
    </ControlTemplate>

    <!-- Designer Item Template-->
    <ControlTemplate x:Key="DesignerItemTemplate" TargetType="{x:Type ContentControl}">
        <Grid DataContext="{Binding RelativeSource={RelativeSource TemplatedParent}}">
            <s:MoveThumb Template="{StaticResource MoveThumbTemplate}" Cursor="SizeAll"/>
            <Control Template="{StaticResource ResizeDecoratorTemplate}"/>
            <ContentPresenter Content="{TemplateBinding Content}"/>
        </Grid>
    </ControlTemplate>
</UserControl.Resources>

<panZoom:PanAndZoomViewer  x:Name="panZoomViewer" Margin="2,2,2,45" ClipToBounds="True">
    <!--<Canvas>-->
    <Canvas x:Name="cnvImage" Background="Transparent">
        <Image x:Name="imgCurrent" VerticalAlignment="Center" HorizontalAlignment="Center" />
        <ItemsControl ItemsSource="{Binding InspectionItemList,Mode=TwoWay }">
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <ContentControl Canvas.Top="{Binding Y,Mode=TwoWay}" Canvas.Left="{Binding X,Mode=TwoWay }" 
                                    Width="{Binding Width,Mode=TwoWay}" MinWidth="1" 
                                    Height="{Binding Height,Mode=TwoWay}"   MinHeight="1"  
                                    Template="{Binding Mode=OneWay, Source={StaticResource DesignerItemTemplate}}" />
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>
    </Canvas>
    <!--</Canvas>-->
</panZoom:PanAndZoomViewer>

Answer 1

而不是

Template="{Binding Mode=OneWay, Source={StaticResource DesignerItemTemplate}}" />

试试这个：

Template="{StaticResource DesignerItemTemplate}" />

如果这没有帮助，请你提供一个更简单的例子来说明问题并描述你想要实现的目标。我不清楚你想要达成什么目标。

Answer 2

我发现了问题！它是继承到可观察对象的InspectionItemList集合对象。当我删除对象中的obeservable时它完美无缺。谢谢Clemens和Stackoverflow这个网站真的对我很有帮助。

WPF Itemcontrol datatemplate

2 个答案: