• CheckSolutionExits- “checks if the sandbox solution already exists in the sitecollection solution gallery” (Signature : sitecollection url(string),wspname(string))

CheckSolutionExits:-

public static bool CheckSolutionExits(string sitecollection, string wspname)         {             #region Solution exits             bool Found = false;             try             {                 SPSecurity.RunWithElevatedPrivileges(delegate()                 {                     using (SPSite site = new SPSite(sitecollection))                     {                         SPList solGallery = site.GetCatalog(SPListTemplateType.SolutionCatalog);                         foreach (SPListItem item in solGallery.Items)                         {                             if (item.File.Name.Equals(wspname))                             {                                 Found = true;                                 break;                             }                         }                                           }                 });             }             catch (Exception ex)             {                throw ex;             }             #endregion             return Found;         }