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

问题描述

我使用以下代码在按钮点击时导航:

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"/>

视图模型:

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); 


        }

而且它工作正常.现在我的问题是什么是使导航在 MouseOver 事件而不是 MouseClick 事件上工作的等效代码，当然是在 MVVM 模式中并使用 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

可以使用交互

声明命名空间

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

你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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