Building reusable CRUD controls in WPF and MVVM

Question

I am building an WPF Prism MVVM application.

This application will contain a lot of CRUD windows.

I want to optimize the features (and reduce the amount of produ

Answer 1

Build an interface which all your CRUD ViewModels will inherit from, and have your generic ViewModel use the interface to execute CRUD operations

Here's an example of how the interface and classes might look:

// Generic interface
public interface IGenericViewModel
{
    bool Add();
    bool Save();
    bool Delete();
}

// Generic CRUD ViewModel
public class GenericViewModel
{
    public IGenericViewModel ObjectViewModel { get; set; }

    public RelayCommand AddCommand { get ; }
    public RelayCommand SaveCommand { get ; }
    public RelayCommand DeleteCommand { get ; }

    void Add()
    {
        ObjectViewModel.Add();
    }

    void Save()
    {
        ObjectViewModel.Save();
    }

    void Delete()
    {
        ObjectViewModel.Delete();
    }
}

// Specific object ViewModel used by generic CRUD ViewModel
public class CustomerViewModel : ViewModelBase, IGenericViewModel
{

    bool IGenericViewModel.Add()
    {
        // Add logic
    }

    bool IGenericViewModel.Save()
    {
        // Save logic
    }

    bool IGenericViewModel.Delete()
    {
        // Delete object
    }

}