如何在MVVM中制作MouseOver事件? [英] How to make MouseOver event in MVVM?

问题描述

我使用以下代码在单击按钮时进行导航:

I use the following code to navigate on button click:

XAML:

<Button x:Name ="Btn_Import" Grid.Row="33" Grid.Column="15" Grid.ColumnSpan="36" Grid.RowSpan="36" Command="{Binding NavigateCommand}"  CommandParameter="ViewImportProgress"/>

ViewModel:

ViewModel:

public DelegateCommand<string> NavigateCommand { get; set; }

public MainButtonsViewModel(IRegionManager regionManager, IMainMenuTooltipViewer mainMenuTooltipViewer)
        {
            NavigateCommand = new DelegateCommand<string>(Navigate); 
        }

 private void Navigate(string uri)
        {
            regionManager.RequestNavigate("ScreenNavigationRegion", uri); 


        }

，效果很好.现在我的问题是，使导航在MouseOver事件而不是MouseClick事件上工作的等效代码是什么，当然是在MVVM模式下并使用Prism?

and it works fine. Now my question is what would be equivalent code to make navigation work on MouseOver event instead of MouseClick event, of course in MVVM pattern and using Prism?

推荐答案

您可以使用互动方式

声明名称空间

xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"

比您可以将命令绑定到事件

than you can bind command to event

<Button Content="Navigate" >

    <i:Interaction.Triggers>

        <i:EventTrigger EventName="MouseEnter">

            <i:InvokeCommandAction Command="{Binding NavigateCommand}"   CommandParameter="ViewImportProgress"/>

        </i:EventTrigger>

    </i:Interaction.Triggers>

</Button>

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