在WPF中进行数据模板切换 [英] Datatemplate switching in WPF

问题描述

如 MVVM友好DataTemplate切换 [ ^ ]我想根据整数变量切换我的Usercontrols。



可悲的是，屏幕保持白色，我无法弄明白为什么



我是什么尝试过：

As described in MVVM Friendly DataTemplate switching[^] I wanted to Switch my Usercontrols depending on an integer variable.

Sadly, the screen stays white, and I cannot figure out why

What I have tried:

<Window.Resources>
        <ControlTemplate x:Key="DeciderControl">
            <userControls:DeciderControl/>
        </ControlTemplate>
</Window.Resources>


    <Grid>
        <ListBox>
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Control x:Name="decider" Template="{StaticResource DeciderControl}"/>
                    <DataTemplate.Triggers>
                        <DataTrigger Binding="{Binding IntTest}" Value="1">
                            <Setter TargetName="decider" Property="Template" Value="{StaticResource DeciderControl}"/>
                        </DataTrigger>
                    </DataTemplate.Triggers>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
        </Grid>

IntTest始终为1，在构造函数中设置我的ViewModel。

userControl也可以工作 - 如果我只是在ListBox中显示它没关系。

IntTest is always 1, set in the Constructor of my ViewModel.
the userControl also works - if I just show it in the ListBox it's ok.

推荐答案

问这个作者文章，Pete O'Hanlon，在文章页面的评论与讨论部分加入讨论： MVVM友好的DataTemplate切换 [ ^ 。



点击添加评论或问题来提问。彼得会得到通知和更改来回答你。据我所知，他是一个非常敏感的人。

-SA

Ask the author of this article, Pete O'Hanlon, by joining the discussion at the "Comments and Discussions" section on the article page: MVVM Friendly DataTemplate switching[^].

Click "Add a Comment or Question" to ask your question. Peter will get a notification and a change to answer you. From what I know, he is quite a responsive person.

—SA

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