AddActivateSolutionbytes -“Upload and Activate the sandbox solution of a site collection gallery” (Signature : sitecollection url(string),wspname(string),bytes(byte[]))

Add and ActivateSoltution:

public static bool  AddActivateSolutionbytes(string sitecollection, string WSPfilename, byte[] bytes)         {             bool Success = false;             try             {                 SPSecurity.RunWithElevatedPrivileges(delegate()                 {                     using (SPSite site = new SPSite(sitecollection))                     {                         //Get the Solution Gallery for the SPSite                         SPDocumentLibrary gallery = (SPDocumentLibrary)site.GetCatalog(SPListTemplateType.SolutionCatalog);                         //Add the WSP File. I've used a source that is an SPFile, but really it's a string and byte array                         SPFile file = gallery.RootFolder.Files.Add(WSPfilename, bytes);                         // Activate Solution                          SPUserSolution solution = site.Solutions.Add(file.Item.ID);                         Success = true;                     }                 });                             }             catch (Exception ex)             {                 Success = false;                 //add logger             }                         return Success;         }