Click here to Skip to main content
Click here to Skip to main content
Add your own
alternative version

MVVM Dynamic Commands

, 24 Apr 2009 CPOL
Implementing dynamic WPF ICommands in Model-View-ViewModel architecture
MVVM_DynamicCommands.zip
ListBoxHyperlinkDemo
Documentation
MVVM Dynamic Commands.docx
ListBoxHyperlinkDemo.suo
ListBoxHyperlinkDemo
bin
Debug
ListBoxHyperlinkDemo.exe
ListBoxHyperlinkDemo.vshost.exe
ListBoxHyperlinkDemo.vshost.exe.manifest
Domain
Properties
Settings.settings
View
ViewModel
Commands
ValueConverters
using System;
using System.Windows.Data;
using System.Windows.Input;

namespace ListBoxHyperlinkDemo.ViewModel
{
    [ValueConversion(typeof(string), typeof(ICommand))]
    public class CommandConverter : IValueConverter
    {
        #region fields

        // Member variables
        private MainWindowViewModel m_ViewModel;

        #endregion

        #region Constructor

        public CommandConverter(MainWindowViewModel viewModel)
        {
            m_ViewModel = viewModel;
        }

        #endregion

        #region IValueConverter Members

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            // Exit if value is null
            if (value == null) return null;

            // Initialize
            string commandName = value.ToString();
            MainWindowViewModel viewModel = (MainWindowViewModel)parameter;
            ICommand command = null;

            // Create command 
            switch (commandName)
            {
                case "CompleteTransaction":
                    command = new CompleteTransaction(m_ViewModel);
                    break;

                case "ReviewAccount":
                    command = new ReviewAccout(m_ViewModel);
                    break;

                default:
                    throw new ArgumentException("Invalid ICommand name passed in.");
            }

            // Set return value
            return command;
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }

        #endregion
    }
}

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Share

About the Author

David Veeneman
Software Developer (Senior) Foresight Systems
United States United States
David Veeneman is a financial planner and software developer. He is the author of "The Fortune in Your Future" (McGraw-Hill 1998). His company, Foresight Systems, develops planning and financial software.

| Advertise | Privacy | Terms of Use | Mobile
Web02 | 2.8.150129.1 | Last Updated 24 Apr 2009
Article Copyright 2009 by David Veeneman
Everything else Copyright © CodeProject, 1999-2015
Layout: fixed | fluid