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Data Annotations

" .NET Framework 4 Client Profile" is a subset of features in the .NET Framework 4.
It is designed to run client applications with enable the fastest possible deployment. = fro client appslike
 WPF/  Forms apps.
Application developers who require features that are not included in the Client Profile should target the full .NET Framework 4 instead of the Client Profile.
NET4 Client Profile:
Always target NET4 Client Profile for all your client desktop applications (including Windows Forms and WPF apps).

NET4 Full framework:
Target NET4 Full only if the features or assemblies that your app need are not included in the Client Profile. This includes:

  • If you are building Server apps. Such as:
    • ASP.Net apps
    • Server-side ASMX based web services
  • If you use legacy client scenarios. Such as:
    • Use System.Data.OracleClient.dll which is deprecated in NET4 and not included in the Client Profile.
    • Use legacy Windows Workflow Foundation 3.0 or 3.5 (WF3.0 , WF3.5)
  • If you targeting developer scenarios and need tool such as MSBuild or need access to design assemblies such as System.Design.dll