这是我的应用程序架构。请注意，我有指挥作为另一个指挥的孩子。我有IHandle让每个指挥从它的孩子接收消息。消息类型与我使用消息只是为了导航相同。我的问题是我将ShellView的EventAggregator传递给它的孩子们。
NewConnectionView的EventAggregator怎么样？因为我使用它的EventAggregator在ShellView上导航。因为它是孩子们在它的ActiveItem上导航。
如何在一个ViewModel中分离这两个EventAggregator。
ShellView＆amp; NewConnectionView ==＆gt; Conductor.Collection.OneActive
+----------------------------------+
| ShellView |_|[]|x|
+----------------------------------+
| +------------------------------+ |
| | | |
| | | |
| | | |
| | ActiveItem | |
| | | |
| | | |
| | | |
| +------------------------------+ |
+----------------------------------+
/ \
/ \
/ \
/ \
/ \
/ \
/ \
+----------------------------------+ +----------------------------------+
| NewConnectionView |_|[]|x| | ConnectionListView |_|[]|x|
+----------------------------------+ +----------------------------------+
| +------------------------------+ | | TextBlock |
| | ComboBox | V | | | +----------------------+ +-----+ |
| +------------------------------+ | | | | | Btn | |
| +------------------------------+ | | | | +-----+ |
| | | | | | | +-----+ |
| | | | | | | | Btn | |
| | | | | | DataGrid | +-----+ |
| | ActiveItem | | | | | +-----+ |
| | | | | | | | Btn | |
| | | | | | | +-----+ |
| | | | | | | |
| +------------------------------+ | | +----------------------+ |
+----------------------------------+ +----------------------------------+
/ \
/ \
/ \
/ \
/ \
/ \
/ \
+----------------------------------+ +----------------------------------+
| FileConnectionView |_|[]|x| | DatabaseConnectionView |_|[]|x|
+----------------------------------+ +----------------------------------+
| | | |
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+----------------------------------+ +----------------------------------+
目前，我的方法是使用NewConnectionShellView（Screen）作为NewConnectionView的（Conductor）父级来分隔EventAggregator。但问题是，我无法将NewConnectionView的子项的DisplayName显示到我的主窗口（ShellView）中。
请注意，我没有使用MEF。我的问题有解决方法吗？
+----------------------------------+
| ShellView |_|[]|x|
+----------------------------------+
| +------------------------------+ |
| | | |
| | | |
| | | |
| | ActiveItem | |
| | | |
| | | |
| | | |
| +------------------------------+ |
+----------------------------------+
/ \
/ \
/ \
/ \
/ \
/ \
/ \
+----------------------------------+ +----------------------------------+
| NewConnectionShellView |_|[]|x| | ConnectionListView |_|[]|x|
+----------------------------------+ +----------------------------------+
| +------------------------------+ | | TextBlock |
| | | | | +----------------------+ +-----+ |
| | | | | | | | Btn | |
| | | | | | | +-----+ |
| | | | | | | +-----+ |
| | | | | | | | Btn | |
| | | | | | DataGrid | +-----+ |
| | ActiveItem | | | | | +-----+ |
| | | | | | | | Btn | |
| | | | | | | +-----+ |
| | | | | | | |
| +------------------------------+ | | +----------------------+ |
+----------------------------------+ +----------------------------------+
|
|
|
|
|
|
|
|
V
+----------------------------------+
| NewConnectionView |_|[]|x|
+----------------------------------+
| +------------------------------+ |
| | ComboBox | V | |
| +------------------------------+ |
| +------------------------------+ |
| | | |
| | | |
| | | |
| | ActiveItem | |
| | | |
| | | |
| | | |
| +------------------------------+ |
+----------------------------------+
/ \
/ \
/ \
/ \
/ \
/ \
/ \
+----------------------------------+ +----------------------------------+
| FileConnectionView |_|[]|x| | DatabaseConnectionView |_|[]|x|
+----------------------------------+ +----------------------------------+
| | | |
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+----------------------------------+ +----------------------------------+
答案 0 :(得分：0)
听起来您想要使用事件聚合器的一个实例进行shell /插件通信，并且每个插件使用一个实例进行视图间模型通信。我建议同时使用IoC容器并将shell事件聚合器注册为单例，然后使用具有容器引用的工厂来解析视图模型的实例。
您可以使用一种更改显示名称的消息类型，并在shell视图事件聚合器的实例上发布，以及一种更改当前活动项并在所有事件聚合器实例上使用的消息类型。