跨MVVM中的视图模型的命令绑定 [英] Command binding across the view models in MVVM

问题描述

任何人都可以建议我在除使用Messenger之外的视图模型中绑定命令。

请在下面找到我的代码。

我需要将MenuItem的命令与RelayCommand属性绑定，该属性存在于其他视图模型中。

下面是我尝试的方式。但是不是。

 <   igDock：ContentPane    标题  = 仪表板    x：名称  =  dashboardWindow    DataContext   =  {Binding Path = viewModels：DashboardViewModel。}      AllowClose   = 错误 >  
 <   ContentControl    内容  =  {Binding ElementName = panelUI，Path = DashboardControl，Mode = TwoWay}  /  >  
 <   ContentControl.ContextMenu  >  
 < ;   ContextMenu  &g t;  
 <   MenuItem      标题  = 添加新平铺   命令  =  {Binding ElementName = dashboardWindow，Path = viewModels：DashboardViewModel.AddTileContextMenuCommand} >  <   / MenuItem   >  
 <   / ContextMenu  >  
 <   / ContentControl.ContextMenu  >  
  <   / igDock：ContentPane  >  

解决方案

嘿......



我的问题解决了。



我刚刚使用我的视图模型分配了dashboardWindow DataContext。

我可以在窗口中获取命令。 ：）

Hi,

Any one please suggest me a way to bind the command across the view models other than using Messenger.
Please find my code below.
I need to bind the command of MenuItem with RelayCommand property which exists in other view model.
Below is the way I tried out.it doesnot however.

<igDock:ContentPane Header="Dashboard" x:Name="dashboardWindow" DataContext="{Binding Path=viewModels:DashboardViewModel.}"  AllowClose="False">
                                  <ContentControl Content="{Binding ElementName=panelUI, Path=DashboardControl, Mode=TwoWay}"/>
                                  <ContentControl.ContextMenu>
                                      <ContextMenu>
                                          <MenuItem  Header="Add New Tile" Command="{Binding ElementName=dashboardWindow,Path=viewModels:DashboardViewModel.AddTileContextMenuCommand}"></MenuItem>
                                      </ContextMenu>
                                  </ContentControl.ContextMenu>
                              </igDock:ContentPane>

解决方案

Hey ...

My problem got solved.

I just assigned the dashboardWindow DataContext with my view model.
I could get the command in my window. :)

这篇关于跨MVVM中的视图模型的命令绑定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！