Joel Varty - All Comments

re: Silverlight Databinding – The Observable Collection

joelvarty — Thu, 05 Nov 2009 13:43:34 GMT

Just send the item that changed to the WCF service. Make a method that accepts the single Person object and persist that to the db.

re: Silverlight Databinding – The Observable Collection

John McIntosh — Thu, 05 Nov 2009 06:32:30 GMT

Suppose you return UserCollection to the Silverlight client using WCF and the client puts it in a DataGrid.ItemSource. Now someone modifies a name in one of the FirstName cells.

Now how do you get just that changed cell or row of that cell to go back to the middle tier? Or if you send the whole UserCollection back to the middle tier how can you tell what's changed in the collection?

In my case, I created an [OperationContract] method in my wcf service called

SaveChanges(ObservableCollection<Person> person)

and in my Silverlight client I call

svc.SaveChanges(datagrid.ItemSource)

When the WCF method receives the collection, I can see the modified name if I inspect each row however I have no idea how to programatically know that the name has been modified in any given row.

Can you please explain that?

CNET News: Visual Studio 2010 to launch in March

DotNetBurner - Visual Studio — Fri, 23 Oct 2009 22:34:53 GMT

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IE8 Compatibility Mode « BlogMill

IE8 Compatibility Mode « BlogMill — Wed, 21 Oct 2009 03:15:24 GMT

Pingback from IE8 Compatibility Mode « BlogMill

Closer to the finish line with VS 2010 and .Net 4.0!

DotNetBurner - ASP.net — Tue, 20 Oct 2009 21:55:20 GMT

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re: Always check for null on Request.UserAgent…

joelvarty — Wed, 07 Oct 2009 19:50:36 GMT

Don't do a ToString() on an object returned from a collection or indexer because it might be null...

re: Always check for null on Request.UserAgent…

Shawn — Wed, 07 Oct 2009 19:23:00 GMT

"I won't say why not"

Because that would be helpful?

re: iPhone Development

mobile application software development — Mon, 05 Oct 2009 08:40:25 GMT

I was just thinking about iPhone Development and you've really helped out. Thanks!

TFS Power Tools – Get Changeset, Rollback Changeset

DotNetBurner - Visual Studio — Thu, 24 Sep 2009 22:45:06 GMT

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re: Getting excited about AJAX again (but will I use jQuery or Microsoft Ajax 4.0 – or both?)

joelvarty — Wed, 16 Sep 2009 15:35:52 GMT

yea - I wonder if data islands would have been more widely adopted if it had come with JSON support (xml with javascript stinks) and better server API support...