using silverlight with linq?

[vineetbindal]

hi all,

I am completely new to silverlight.

I have a table in database which i can convert to xml using--

select * from TABLENAME for XML auto, Type, Elements


and save it as a stored procedure.

not i want to use link to access this stored procedure and use it to display something like a workflow (kind of workflow we have in powerpoint)


can some one give me some idea?

is it necessary to use WCF with silverlight if i wanna use link??

or is there someother way?

[Frinavale]

You do not need to use WCF in order to use LINQ; However, Silverlight is based on WCF. So to answer your question: yes, you have to use WCF because you're developing a Silverlight application; but no, you do not have to be developing a WCF application to use LINQ.

LINQ is available to you as long as you're developing a .NET application that uses the 3.5 .NET Framework.



Once you have the data loaded, it is up to you how you use it to display things.....
What have you tried so far?
Are you getting any errors?

[vineetbindal]

No i have not tried anything yet. I was looking at few tutorials before using it. I have to do something very interusting but i donno how can i do it. it will be great if you can give me some idea. i have a table in database which is a workflow table. i need to display a workflow something like we have in power point( a number or boxes coonected to each other) each row represents data about a perticuler workflow. for example. if user one is on step a(show it as step a in a rectangular box) next step is b(show it in rectangular box connected to a) some boxes are connected to more than 1 box. in reverse direction too.

It will be great if you can suggest me something.

i am comletely new to silverlight

Regards & Thnaks,

Vineet Bindal

[PRR]

Look at these Silverlight tutorials and
Scott Guthrie
Also check Jesse Liberty
You will have to do some tweaking in the WCF service config ...

[vineetbindal]

HI Thanks for the links. they are very useful, but somewhere it asks me add a referance to system.windows.controls.data in order to access datagrid in my .cs file i have added the referance to system.windows.controls.data. but when i include it in my class by "using System.Windows.Controls.Data" it gives me error. it is not able to see the Data. can you tell me what could be the problem or how can i resolve it?

[Frinavale]

I'm not sure about silverlight applications but you don't normally use DataGridViews in web applications.

I could be wrong here because I haven't actually attempted to use a GridView/DataGrid/DataGridView in a silverlight application....by try using a GridView instead. I this should solve your problem.

[vineetbindal]

I am sorry i mean GridView not dataGrid. I am using GridView. when i type in "using System.Windows.Controls.Data;" it gives me error the type or namespace name Data does not exist in the name space System.Windows.Controls.Data... I have added this dll in the referance but visual studio is not able to see it?

please help me.

[vineetbindal]

Hi,

this problem is resolved thanks a lot it was a typing mietake onn my side instead typing data:datagrid i was doing x:name i am sorry for that.

How ever i have a new error // i am following this tutorial http://weblogs.asp.net/scottgu/pages...-datagrid.aspx

whenevr i click search button instead of getting data i just get a white blank page? why?

some has writeen that my adress in browser whould be c://

but its http://localhost:...... am i missing any configuration?

[vineetbindal]

i am getting this exception


System.Net.WebException: The remote server returned an error: NotFound ---> System.Net.WebException: The remote server returned an error: NotFound
at System.Net.BrowserHttpWebRequest.InternalEndGetRes ponse(IAsyncResult asyncResult)
at System.Net.BrowserHttpWebRequest.<>c__DisplayClass 5.<EndGetResponse>b__4(Object sendState)
at System.Net.AsyncHelper.<>c__DisplayClass2.<BeginOn UI>b__0(Object sendState)
--- End of inner exception stack trace ---
at System.Net.AsyncHelper.BeginOnUI(SendOrPostCallbac k beginMethod, Object state)
at System.Net.BrowserHttpWebRequest.EndGetResponse(IA syncResult asyncResult)
at System.Net.WebClient.GetWebResponse(WebRequest request, IAsyncResult result)
at System.Net.WebClient.DownloadBitsResponseCallback( IAsyncResult result)
The program '[7316] WebDev.WebServer.EXE: Managed' has exited with code 0 (0x0).
The program '[2144] iexplore.exe: Silverlight' has exited with code 0 (0x0).

please help