Looking for simple MVVM Light example

Question

I'm trying to learn MVVM Light and am looking for a good basic example that shows a model and how to load different views.

The template I see after downloading MVVM Light has no models and only one view. (http://www.galasoft.ch/mvvm/creating/)

Other things I've found are more complex and a bit confusing when all I want to see are the basics.

Thanks.

Answer 1

I found the following tutorials to be a quick and easy way to get started:

MVVM Light Toolkit Example

MVVM Step By Step

Answer 2

I found these two to be very helpful:

http://www.codeproject.com/KB/WPF/blendable_locator.aspx http://rickrat.wordpress.com/2011/01/24/using-mef-to-link-view-model-locator-and-load-assembly-uis-dynamically

The first one is just a simple drop-in viewModelLocator class for MVVM Light that gives you the MEF abilities.

[ExportViewModel("Demo1", false)]
class Demo1ViewModel : ViewModel
{   
}

And the second one, uses the same approach with an additional MefHelper class that enables run time loading of MEF components.

public void Compose()
{
AggregateCatalog Catalog = new AggregateCatalog();
// Add This assembly's catalog parts
System.Reflection.Assembly ass = System.Reflection.Assembly.GetEntryAssembly();
Catalog.Catalogs.Add(new AssemblyCatalog(ass));

// Directory of catalog parts
if (System.IO.Directory.Exists(ExtensionsPath))
{
    Catalog.Catalogs.Add(new DirectoryCatalog(ExtensionsPath));
    string[] folders = System.IO.Directory.GetDirectories(ExtensionsPath);

    foreach (string folder in folders)
    {
        Catalog.Catalogs.Add(new DirectoryCatalog(folder));
    }

}

_Container = new CompositionContainer(Catalog);
}

Answer 3

I have personally found these to be quite useful, though they also use MEF and RIA Services which can complicate things:

A Sample Silverlight 4 Application Using MEF, MVVM, and WCF RIA Services

Architecting Silverlight 4 with RIA Services MEF and MVVM - Part 1

In April, the author of the MVVM Light toolkit said that he would eventually be creating a reference application in both Silverlight and WPF. (Source)

You might find these other questions useful:

mvvm light toolkit samples

wpf/silverlight mvvm sample app request

mvvm tutorial from start to finish

Answer 4

I have found this example helpful:

http://apuntanotas.codeplex.com/