How to bind command to button in WPF using Prism framework

Question

I am trying to bind a click on button event in WPF to a command defined in a View Model, here is how I am doing that for now :

In the xaml code :

 <Grid>
    <Button Content="Module A" Background="Green" FontWeight="Bold">
        <i:Interaction.Triggers>
            <i:EventTrigger EventName="click">
                <i:InvokeCommandAction Command="{Binding ChargeModuleDCommand}"/>
            </i:EventTrigger>
        </i:Interaction.Triggers>
    </Button>
</Grid>

and in the ViewModel class :

class ModuleAViewModel
{

    public DelegateCommand<object> ChargeModuleDCommand { get; set; }

    public ModuleAViewModel()
    {
        ChargeModuleDCommand = new DelegateCommand<object>(LaunchDModule);
    }

    private void LaunchDModule(object parm)
    {
        Console.WriteLine("I am in the function");
    }
}

but it does not work. I've tried to do it as specified in this question : How to trigger ViewModel command for a specific button events but it does not work either. Is there any way that I can make it work ?

Answer 1

<Button 
    Command="{Binding ChargeModuleDCommand}" 
    Content="Module A" 
    Background="Green" 
    FontWeight="Bold"
    />

If ModuleAViewModel is the Button's DataContext, that should work.