C#•13mo ago

❔ WF to WPF Help Needed

Hello sharpers. I have a issue where I need to convert at least the LoadFileSyncs to work with CommunityToolkit.MVVM in WPF I know how to Bind a ICommand to a button, I know how to do very basic ViewModel stuff so far but this is very new to me. OG Code is @ https://pastebin.com/EQyMRsvf My VM is @ https://pastebin.com/7cxT0ntv I appreciate you all!

Pastebin

using System.Data;using TitanSTUDIO.Helpers.Parsers;using TitanSTUD...

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Pastebin

using CommunityToolkit.Mvvm.ComponentModel;using CommunityToolkit.M...

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3 Replies

Core DreamOP•13mo ago

😦

Klarth•13mo ago

Is this an arbitrary schema? Or is it exactly known at compile time? For a fixed schema, I would start off with something like:

public partial class MainAppViewModel : ObservableObject
{
    [ObservableProperty] private StringDatabaseModel? _sdbModel;
    [ObservableProperty] private string? _id;
    [ObservableProperty] private string? _text;
    [ObservableProperty] private string? _offset;

    [RelayCommand]
    public async Task LoadFileAsync(string filename)
    {
        using (OpenFileDialog ofd = new OpenFileDialog())
        {
            ofd.Filter = "String Database File (*.sdb)|*.sdb";
            ofd.RestoreDirectory = true;

            if (ofd.ShowDialog() == DialogResult.OK)
            {
                // Clear the search textbox
                SearchTermText.Clear(); // Probably create a new property and expose a binding here instead

                currentLoadedFile = ofd.FileName;
                SdbModel = await StringDatabase.ReadStringAsync(currentLoadedFile);

                UpdateDataGrid(); // Use bindings instead

                // Update the status information for the user to see.
                UpdateStatus(); // Use bindings or messaging instead
            }
        }
    }
}

public partial class MainAppViewModel : ObservableObject
{
    [ObservableProperty] private StringDatabaseModel? _sdbModel;
    [ObservableProperty] private string? _id;
    [ObservableProperty] private string? _text;
    [ObservableProperty] private string? _offset;

    [RelayCommand]
    public async Task LoadFileAsync(string filename)
    {
        using (OpenFileDialog ofd = new OpenFileDialog())
        {
            ofd.Filter = "String Database File (*.sdb)|*.sdb";
            ofd.RestoreDirectory = true;

            if (ofd.ShowDialog() == DialogResult.OK)
            {
                // Clear the search textbox
                SearchTermText.Clear(); // Probably create a new property and expose a binding here instead

                currentLoadedFile = ofd.FileName;
                SdbModel = await StringDatabase.ReadStringAsync(currentLoadedFile);

                UpdateDataGrid(); // Use bindings instead

                // Update the status information for the user to see.
                UpdateStatus(); // Use bindings or messaging instead
            }
        }
    }
}

<Button Command="{Binding LoadFileAsyncCommand}" /> The DB stuff is more complex. If it's arbitrary schema, then you need to use DataTable as part of your DataGrid. If it's a static schema, then as long as your StringDatabaseModel is well-designed, you can bind rows/columns easily in XAML.

Accord•13mo ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ WF to WPF Help Needed