WPF 按钮单击和命令不能一起使用 MVVM [英] WPF button click and command doesn't work together MVVM

问题描述

我正在使用 mvvm 开发一些 wpf 应用程序.我正在尝试同时使用按钮单击事件和命令，但命令永远不会被执行.此外，当我只使用没有点击事件的命令时，它工作得很好.代码如下:

I'm developing some wpf application, using mvvm. I'm trying to use button click event and command together but command never get executed. Also when I use only command without click event it works perfect. Here is the code:

<ControlTemplate x:Key="reminderDataTemplate">          
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="25" />
            <RowDefinition Height="150" />
            <RowDefinition Height="20" />
        </Grid.RowDefinitions>
        <Label Grid.Row="0" Content="New reminder:" HorizontalAlignment="Left" />
        <TextBox Text="{Binding Path=ReminderText, UpdateSourceTrigger=PropertyChanged}" Grid.Row="1" Height="150" Width="200" HorizontalAlignment="Left"/>
        <Button Name="btnSaveReminder" Grid.Row="2" Content="Save" Width="auto" Height="20" HorizontalAlignment="Left" Click="btnSaveReminder_Click"  Command="{Binding Path= btnSaveReminder}"  />
    </Grid>
</ControlTemplate>

为什么会这样?

顺便提一下，我必须同时使用 click 和 command，因为我的视图和视图模型在不同的项目中.

Just to mention that I must use click and command together becouse my view and viewmodel are in different projects.

更新:还要说的是，当我在控件模板之外的按钮中同时使用 click 和 command 时，一切正常.

UPDATE: Also to say that, when I use click and command together in buttons outside of control template, everything works perfect.

推荐答案

在 Click 事件上，执行命令.

private void btnClick(object sender, RoutedEventArgs e)
{
    var btn = sender as Button;
    btn.Command.Execute(btn.CommandParameter);
}

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