选项卡控件内的WPF Prism Region不在Region列表中 [英] WPF Prism Region inside a tab control isn't in the Region List

问题描述

我有一个带有附加区域的选项卡控件，并且我的选项卡控件内部还有一个内容控件，该内容带有另一个区域。

I've got a tab control with a region attached to it and I've also got a content control inside my tab controls content with another region.

我遇到的问题是-如果我调用RegisterViewWithRegion，它将视图添加到该区域没有问题（第一次，如果交换选项卡，则会出现问题）。但这不是很灵活，我正在寻找一种更好的方法。

The problem I'm having is - if I call RegisterViewWithRegion it adds the view to the region no problem (first time that is, get issues if you swap tabs). But this isn't very flexible and I'm looking for a better way to do that.

当我查看IRegionManager.Regions时，也只能看到-两个顶级区域。我看不到我的子区域 TabContentRegion 。有没有一种方法可以注册它，以便我可以以通常的方式添加视图并激活它们？

When I look inside IRegionManager.Regions as well - I can only see the two top level regions. I cant see my sub region TabContentRegion. Is there a way to register this so I can just work in the usual way with adding views and activating them?

   <TabControl TabStripPlacement="Left"
            Width="Auto"
            Height="Auto"
            cal:RegionManager.RegionName="TabRegion"
            Name="TabRegion"
            SelectedItem="{Binding SelectedTab}">
    <TabControl.ContentTemplate>
        <DataTemplate>

            <ContentControls:TransitionContentControl 
                cal:RegionManager.RegionName="TabContentRegion" />

        </DataTemplate>
    </TabControl.ContentTemplate>
</TabControl>

此代码将视图添加到TabRegion

This code adds the views to the TabRegion

 public void Load()
 {
     IConfigurationDetailsPresentationModel convDetailsView1 =
         this.Container.Resolve<IConfigurationDetailsPresentationModel>();

     IRegionManager manager = this.Container.Resolve<IRegionManager>();
     manager.RegisterViewWithRegion("TabRegion", () => convDetailsView1);

     IConversationDetailsPresentationModel conversationDetails = 
         this.Container.Resolve<IConversationDetailsPresentationModel>();
     manager.RegisterViewWithRegion("TabRegion", () => conversationDetails);
 }

然后这是我用来实际显示视图的代码TabContentRegion

Then this is the code I've been using to actually display the view in the TabContentRegion

 public IPresentationModel SelectedTab
 {
     get { return _selectedTab; }
     set
     {
         _selectedTab = value;

         IRegionManager service = this.Container.Resolve<IRegionManager>();

         if (service != null)
         {
             service.RegisterViewWithRegion(
                 "TabContentRegion",
                 () => _selectedTab.View);
         }
     }
 }

您可以看到-有点过时了，不太有效。有任何想法我做错了吗？

As you can see - it's a bit janky and doesn't quite work. Any ideas what I'm doing wrong?

感谢您的帮助！

推荐答案

在玩了很多游戏之后，我终于找到答案了！

After alot of playing and googling I finally came across and answer!

因为该区域位于数据模板中，所以人们认为棱镜的标准行为不会被采纳并使用区域代码进行注册。

because the region was inside a datatemplate, that ment that prisms standard behaviours wouldn't pick it up and register it with the region manager.

使用提供的代码此处，它帮助我解决了该问题并正常进行了！ ：）

using the code provided here it helped me to fix this and carry on as normal! :)

欢呼。
ste。

cheers. ste.

这篇关于选项卡控件内的WPF Prism Region不在Region列表中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！