将选定的项目作为参数发送到视图模型[WPF，Caliburn]中的方法

问题描述

我有这个问题.我在WPF中使用caliburn micro.在视图中，我具有列表框，并且绑定了视图模型中的事件MouseDoubleClick方法.我想将选定的列表框项目作为参数发送.但是我不知道怎么做.

I have this problem. I use caliburn micro in WPF. In view I have listbox, and I bind on event MouseDoubleClick method in view-model. I would like send as parameter selected listbox item. But I don’t know how do it.

鉴于我有这个:

    <ListBox Name="Friends" 
             SelectedItem="Key"
             Style="{DynamicResource friendsListStyle}"
             Grid.Row="2" 
             Margin="4,4,4,4"

             Micro:Message.Attach="[MouseDoubleClick]=[Action SendRp(Key)]"

             PreviewMouseRightButtonUp="ListBox_PreviewMouseRightButtonUp"
             PreviewMouseRightButtonDown="ListBox_PreviewMouseRightButtonDown" 
             MouseRightButtonDown="FriendsListBoxMouseRightButtonDown"/>

在视图模型中，我有这种方法:

In view model I have this method:

    public void SendRp(string key)
    {
        MessageBox.Show(key);
    }

任何进展，谢谢.

推荐答案

我对caliburn不太了解，但我猜想是你必须写

I dont know much about caliburn but my guess is you have to write

Micro:Message.Attach="[MouseDoubleClick]=[Action SendRp(Friends.SelectedItem)]"

您还应该省略SelectedItem="Key"或使用与ViewModel的绑定，如下所示:

also you should either omit the SelectedItem="Key" or use a binding to your ViewModel like this:

SelectedItem="{Binding Key}"

如果我由于对caliburn知识的缺乏而完全假冒我的帖子，请提前表示歉意.

sorry in advance if my post is completely bogus due to my lack of caliburn knowledge

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