WPF棱镜区域经理问题 [英] WPF Prism Region Manager Issue

问题描述

我正在尝试通过Prism学习WPF，并使用现代UI模板.我在使用区域管理器时遇到问题，无法在集合中找到区域，但是视图已正确注入.

I am trying to learn WPF with Prism and using Modern UI Template. I have Problem with region Manager, unable to find the region in collections but the views are getting injected properly.

这是我在做什么

步骤A:外壳窗口

<mui:ModernWindow x:Class="SimpleAccounting.Shell"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:mui="http://firstfloorsoftware.com/ModernUI"
        xmlns:prism="http://www.codeplex.com/prism"
        ContentSource="/PlaceHolders/AccountModulePlaceHolders/AccountListPlaceHolder.xaml"
       >
   
    <mui:ModernWindow.MenuLinkGroups>
        <mui:LinkGroup DisplayName="Accounts">
            <mui:LinkGroup.Links>
                <mui:Link DisplayName="New Account" Source="/PlaceHolders/AccountModulePlaceHolders/NewAccountPlaceHolder.xaml">
                </mui:Link>
                <mui:Link DisplayName="Available Accounts" Source="/PlaceHolders/AccountModulePlaceHolders/AccountListPlaceHolder.xaml" />
            </mui:LinkGroup.Links>
        </mui:LinkGroup>
    </mui:ModernWindow.MenuLinkGroups>
   
</mui:ModernWindow>

第2步:页面源或区域定义

Step 2 : Page Source or Region Definitions

<UserControl x:Class="SimpleAccounting.PlaceHolders.AccountModulePlaceHolders.AccountListPlaceHolder"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:mui="http://firstfloorsoftware.com/ModernUI"
             xmlns:prism="http://www.codeplex.com/prism"
             mc:Ignorable="d" 
             d:DesignHeight="300" d:DesignWidth="300">
  
    <ContentControl Name="NameAccountListPlaceHoldersRegion" prism:RegionManager.RegionName="AccountListPlaceHoldersRegion" Grid.Row="0" Grid.Column="0"></ContentControl>

</UserControl>

第3步:我拥有具有以下功能的模块

Step 3 : I am having Module which have

 public class SimpleAccountingModule : IModule
    {
        private readonly IRegionManager regionManager;
        private readonly IUnityContainer container;

        public SimpleAccountingModule(IRegionManager regionManager, IUnityContainer container)
        {
            this.regionManager = regionManager;
            this.container = container;
        }

        public void Initialize()
        {
           regionManager.RegisterViewWithRegion("AccountListPlaceHoldersRegion", typeof(Views.AccountList));
        }
    }

第4步:运行应用程序完美无问题.

Step 4 : Run the application works perfect no issues.

步骤5:在步骤3中进行调试时，我的区域管理器计数始终为零，而当我尝试在其中查找元素时，找不到错误区域.但是，视图已正确注入.

Step 5: While debugging in Step 3 my region manager count is always zero, and when i am trying to find an element in it getting error region not found. However Views are getting injected properly.

感谢您的帮助

K K Sanghi

K K Sanghi

推荐答案

克里希纳，

您似乎应该在外壳程序窗口中添加ContentControl并设置RegionManager.RegionName，这是我的工作:

It looks like that you should add ContentControl and set RegionManager.RegionName in the Shell Window, here is what I do:

参考:棱镜4.1

项目1: HelloWorldModule

Views \ AccountList.xaml:

<Grid>
        <TextBlock Text="AccountList" Foreground="Red" HorizontalAlignment="Center" VerticalAlignment="Center" FontFamily="Calibri" FontSize="24" FontWeight="Bold"></TextBlock>
    </Grid>

SimpleAccountingModule.cs:

SimpleAccountingModule.cs:

public class SimpleAccountingModule : IModule
{
        private readonly IRegionManager regionManager;
        private readonly IUnityContainer container;

        public SimpleAccountingModule(IRegionManager regionManager, IUnityContainer container)
        {
            this.regionManager = regionManager;
            this.container = container;
        }

        public void Initialize()
        {
            regionManager.RegisterViewWithRegion("AccountListPlaceHoldersRegion", typeof(Views.AccountList));
        }
}

项目2: HelloWorld.Desktop

Shell.xaml:

Shell.xaml:

<Window x:Class="HelloWorld.Shell"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:cal="http://www.codeplex.com/prism"
    Title="Hello World" Height="300" Width="300">
    <ContentControl Name="AccountListPlaceHoldersRegion" cal:RegionManager.RegionName="AccountListPlaceHoldersRegion" />

</Window>

Bootstrapper.cs:

class Bootstrapper : UnityBootstrapper
{
        protected override DependencyObject CreateShell()
        {
            return this.Container.Resolve<Shell>();
        }

        protected override void InitializeShell()
        {
            base.InitializeShell();

            App.Current.MainWindow = (Window)this.Shell;
            App.Current.MainWindow.Show();
        }     

        protected override void ConfigureModuleCatalog()
        {
            base.ConfigureModuleCatalog();

            ModuleCatalog moduleCatalog = (ModuleCatalog)this.ModuleCatalog;
            moduleCatalog.AddModule(typeof(HelloWorldModule.SimpleAccountingModule));
        }

        
}

MainWindow.cs:

MainWindow.cs:

class MainWindow
{
}

截屏:

您可以下载我的示例: http://1drv.ms/1mEtNIX

You could download my sample: http://1drv.ms/1mEtNIX

这是类似的问题:

#RegionManager空(不继承)
http://compositewpf.codeplex.com/workitem/10276

由于该问题与该第三方产品更相关，因此您最好在其官方网站上提出问题以寻求进一步的支持.

Since this question is more related to this 3rd-party product, you'd better to ask question at its official website for further support.

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