SilverlightShow: Data Driven Applications with MVVM Part I: The Basics Comments

Re: Data Driven Applications with MVVM Part I: The Basics

harrykod — Wed, 16 May 2012 22:26:19 GMT

I am using ADO.Net Entity Framework in the Model Folder. Do i have to create an interface for each entity in my ADO.Net Entity Model?

Re: Data Driven Applications with MVVM Part I: The Basics

ShohelShipon — Mon, 14 May 2012 05:36:44 GMT

Greate article boss.

Thanks a lot.

Re: Data Driven Applications with MVVM Part I: The Basics

haiyun592 — Wed, 25 Apr 2012 15:57:30 GMT

Where is the OperationEventArgs come from?

Re: Data Driven Applications with MVVM Part I: The Basics

Karthik — Mon, 20 Feb 2012 02:18:07 GMT

Hi,

I am new to Silverlight. Really good article.

I have a question.

I see "OperationEventArgs" being used. Is this part of MVVM tool kit or am i missing any assembly?

namespace MVVMProductsDemo.Model

     public class BooksLoadedEventArgs : OperationEventArgs

         public IEnumerable Books { get; set; }

         public BooksLoadedEventArgs(IEnumerable books)

            this.Books = books;

Re: Data Driven Applications with MVVM Part I: The Basics

Karthik — Sun, 19 Feb 2012 23:54:06 GMT

Hi,

I am new to Silverlight. Really good article.

I have a question.

I see "OperationEventArgs" being used. Is this part of MVVM tool kit or am i missing any assembly?

namespace MVVMProductsDemo.Model

     public class BooksLoadedEventArgs : OperationEventArgs

         public IEnumerable Books { get; set; }

         public BooksLoadedEventArgs(IEnumerable books)

            this.Books = books;

Re: Data Driven Applications with MVVM Part I: The Basics

ImranAli — Fri, 16 Sep 2011 07:52:52 GMT

This is not good for huge ERP type system.If some one follow MVVM sure he will depress and stop coding.

Re: Data Driven Applications with MVVM Part I: The Basics

MauricioLeyzaola — Mon, 29 Aug 2011 04:27:01 GMT

Thank you Zoltan, very good explanation. I have been with my fingers freezed for weeks without knowing where to start this big WPF project. At least know I have a path.

Let's move on with the next chapter.

RE: Data Driven Applications with MVVM Part I: The Basics

Shailesh — Wed, 18 May 2011 23:24:20 GMT

Can you upload the source code zip as well?

Nice article

RE: Data Driven Applications with MVVM Part I: The Basics

Surf-O-Matic — Thu, 26 Aug 2010 19:06:34 GMT

Thank you very much for this article !!

Things are getting very clear for me now .

RE: Data Driven Applications with MVVM Part I: The Basics

Sunit Joshi — Mon, 23 Aug 2010 20:41:56 GMT

If you don't mind, can you please post a zip of the same?

thanks

Sunit

RE: Data Driven Applications with MVVM Part I: The Basics

zoltan.arvai — Mon, 23 Aug 2010 10:05:08 GMT

The full solution is supposed to be there... and I just double checked it, and the solution is there. (I used winrar)

RE: Data Driven Applications with MVVM Part I: The Basics

Sunit — Mon, 23 Aug 2010 05:26:45 GMT

Is the full project contained in the rar files? I can't see anything other than the Mvmm dlls and App files?

RE: Data Driven Applications with MVVM Part I: The Basics

zoltan.arvai — Sat, 31 Jul 2010 12:17:53 GMT

Nabeel:

In your code you write:

var mainwindow = new MainWindow(); (here you have a mainwindow variable)
this.MainWindow.DataContext = view; (here you set this.MainWindows which is at this point is not the previously created instance... plus you set the datacontext to view... what is view? that should be a viewmodel...
this.MainWindow.Show();

This should be something like this:

            var mainwindow = new MainWindow();
            this.MainWindow = mainwindow;
            this.MainWindow.DataContext = viewModel;
            this.MainWindow.Show();

RE: Data Driven Applications with MVVM Part I: The Basics

Rafael — Sat, 31 Jul 2010 06:30:29 GMT

Great article, simple and to the point.

Thanks!

RE: Data Driven Applications with MVVM Part I: The Basics

Nabeel — Wed, 28 Jul 2010 19:26:30 GMT

Hi Zoltan,

I am new to Wpf and Silverlight. I am porting your solution to wpf and I can't seem to figure out the equivalent of line 7

this.RootVisual = view;

in the ApplicationStartup event. I have tried something like this

var mainwindow = new MainWindow();
this.MainWindow.DataContext = view;
this.MainWindow.Show();

But when the MainWindow get displayed its all empty? Any idea?

Regards,
Nabeel

RE: Data Driven Applications with MVVM Part I: The Basics

Mattias — Wed, 16 Jun 2010 16:39:13 GMT

Thanks this is great stuff.

RE: Data Driven Applications with MVVM Part I: The Basics

zoltan.arvai — Tue, 15 Jun 2010 18:10:10 GMT

Hi!

I totally agree with you. Your suggestion makes this more effective and most of the time that is what I do myself (mostly due to the lack of time :) ) However in this article I tried to follow the design guidelines present in the .NET Framework. To make it somewhat more readable.

There are two more articles, already sent to the silverlightshow guys. Timing is up to them :) The article was intended to be only a single one, however as I wrote it, it was growing pretty fast :) Now I'm thinking on a 4th part :) There is still much to show :)

RE: Data Driven Applications with MVVM Part I: The Basics

ppopadiyn — Tue, 15 Jun 2010 16:25:52 GMT

Quite simple and at the same time accurate explanation of the MVVM basics !!! I would suggest just one improvement in your code, it is in the model. I see that you've created a BooksLoadedEventArgs, if you need to load, let's say Customers, you have to create another EventArgs, e.g: CustomersLoadedEventArgs. In this case you can replace both of the custom EventArgs with one generic class. For example, something like this:

public class EntityResultEventArgs : OperationEventArgs
{
    public EntityResultEventArgs( IEnumerable result )
    {
        this.Result = result;
    }

    public IEnumerable Result
    {
        get;
        protected set;
    }
}

Otherwise the rest of the code is absolutely the same as I would do it. I am looking forward for the rest of the articles.
Best Regards