I want to display an Action Sheet from the ViewModel

Question

I am trying to display an action sheet from the viewmodel when the user taps on an Item in the ListView using commanding. Currently I have this in my Xaml. But I get a compiler error message stating that Event ItemTapped can only be bound to properties of delegate type EventHandler

 <ListView x:Name="listView" ItemsSource="{Binding CustomerList}" FlexLayout.Grow="1" HasUnevenRows="True" ItemTapped="{Binding LVItemTappedCommand}" >

This is the Method in my ViewModel

 [RelayCommand]   
 private void LVItemTapped()  
 { 
     // Handle the tapped item here  

 }

This is how it looks in the code behind but since I am using MVVM I only want code in my ViewModel

private async void listview_ItemTapped(object sender, ItemTappedEventArgs e)
{
    var customer = (Customer)e.Item;
    var action = await DisplayActionSheet("Action", "Cancel", null, "Edit", "Delete");

    switch (action)
    {
        case "Edit":
            _editCustomerId = customer.Id;
            //nameEntryField.Text = customer.customer_name;
            //emailEntryField.Text = customer.Email;
            //mobileEntryField.Text = customer.Mobile;

            break;
        case "Delete":
            //await _dbService.Delete(customer);
            //listView.ItemsSource = await _dbService.GetCustomers();
            break;
    }
}

Answer 1

Hello,

To call Event in MVVM mode, you need to use the ToolKit plug-in provided by Maui to complete this function.

Please refer to the following official documentation and instructions.

• .NET Multi-platform App UI Community Toolkit documentation - Get started.
• EventToCommandBehavior.

Best Regards,

Alec Liu.

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