C#•4w ago

MVVM .net MAUI delete button not working

What I'm trying to do is: 1. Click the delete button 2. The deleted item gets removed from the collectionview However, this is not working with the code that I have, as it gives me this error or crashes the program. I followed stackoverflow on similar issues, such as this one: https://stackoverflow.com/questions/74460587/how-to-delete-selected-item-from-collection-view-in-net-maui, just without the selection I've set my command binding to the delete command in the view model, and the problem starts occurring when I set my commandparameter's binding to . or Items, is there a fix for my problem? what is the problem that occurred in my logic?

Stack Overflow

How to delete selected Item from collection view in .net MAUI

I have collection in my Child view. <CollectionView SelectionMode="Single" SelectedItem="{Binding Source={Reference sideview}, Path=myViewModel.SelectedItem.FileName}" ...

2 Replies

CreamofSumYungGai•4w ago

this is my delete command:

        [ICommand]
        private async void Delete(string s)
        {
            // Fix the delete command not working
            if (Items.Contains(s))
            {
                Console.WriteLine($"{s} has been deleted!");
                Items.Remove(s);
            }
            //removes the item from the MainPage's viewmodel
        }

        [ICommand]
        private async void Delete(string s)
        {
            // Fix the delete command not working
            if (Items.Contains(s))
            {
                Console.WriteLine($"{s} has been deleted!");
                Items.Remove(s);
            }
            //removes the item from the MainPage's viewmodel
        }

and my binding command is set to this:

                            Command="{Binding DeleteCommand, Source={RelativeSource AncestorType={x:Type viewmodel:MainViewModel}}}"
                            CommandParameter="{Binding .}"

                            Command="{Binding DeleteCommand, Source={RelativeSource AncestorType={x:Type viewmodel:MainViewModel}}}"
                            CommandParameter="{Binding .}"

CreamofSumYungGai•4w ago

Link to my repo for more info: https://github.com/Morganiscooler/Notepad-Bugged-with-breakpoint-

GitHub

GitHub - Morganiscooler/Notepad-Bugged-with-breakpoint-: A randomly...

A randomly generated code keeps popping up and will not let me use the app anymore - Morganiscooler/Notepad-Bugged-with-breakpoint-

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MVVM .net MAUI delete button not working