Attached Silverlight Demo will provide insert/update/delete operations using WCF data service. Very nice tutorial

CRUDSilverlight
...............\CRUDSilverlight
...............\...............\App_Data
...............\...............\bin
...............\...............\...\CRUDSilverlight.dll
...............\...............\...\CRUDSilverlight.pdb
...............\...............\...\Model1.csdl
...............\...............\...\Model1.msl
...............\...............\...\Model1.ssdl
...............\...............\ClientBin
...............\...............\.........\Microsoft.Data.WebClient.dll
...............\...............\.........\SilverlightProject1.dll
...............\...............\.........\SilverlightProject1.pdb
...............\...............\CRUDSilverlight.csproj
...............\...............\CRUDSilverlight.csproj.user
...............\...............\Default.aspx
...............\...............\Default.aspx.cs
...............\...............\Default.aspx.designer.cs
...............\...............\Model1.Designer.cs
...............\...............\Model1.edmx
...............\...............\obj
...............\...............\...\Debug
...............\...............\...\.....\CRUDSilverlight.csproj.FileListAbsolute.txt
...............\...............\...\.....\CRUDSilverlight.dll
...............\...............\...\.....\CRUDSilverlight.pdb
...............\...............\...\.....\TempPE
...............\...............\...\.....\......\Model1.Designer.cs.dll
...............\...............\Page.xaml
...............\...............\Properties
...............\...............\..........\AssemblyInfo.cs
...............\...............\Web.config
...............\...............\WebDataService1.svc
...............\...............\WebDataService1.svc.cs
...............\CRUDSilverlight.sln
...............\CRUDSilverlight.suo
...............\SilverlightProject1
...............\...................\AstoriaProxy
...............\...................\............\Products.cs
...............\...................\ClientBin
...............\...................\.........\Microsoft.Data.WebClient.dll
...............\...................\.........\SilverlightProject1.dll
...............\...................\.........\SilverlightProject1.pdb
...............\...................\Configs.cs
...............\...................\Configs.xml
...............\...................\obj
...............\...................\...\Debug
...............\...................\...\.....\Page.g.cs
...............\...................\...\.....\SilverlightProject1.csproj.FileListAbsolute.txt
...............\...................\...\.....\SilverlightProject1.dll
...............\...................\...\.....\SilverlightProject1.pdb
...............\...................\...\.....\TempPE
...............\...................\Page.xaml
...............\...................\Page.xaml.cs
...............\...................\Properties
...............\...................\..........\AssemblyInfo.cs
...............\...................\Silverlight.js
...............\...................\SilverlightProject1.csproj
...............\...................\SilverlightProject1.csproj.user
...............\...................\TestPage.html
...............\...................\TestPage.html.js

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