C# Generics

//Main Program - Calling the GetResults Method

string mesaiBitisSaati = CommonClass.GetResults<string>(SystemCodes.MZB, 1);

//CommonClass - GetOneResult Method

public static T GetResults<T>(SystemCodes sistemKodu, decimal parametreKodu)

{

            try

            {

                object param = GetOneResult(sistemKodu, parametreKodu);

                return (T)Convert.ChangeType(param, typeof(T));

            }

            catch

            {

                return default(T);

            }

}

//CommonClass - GetOneResult Method 

public static string GetOneResult(SystemCodes sistemKodu, decimal parametreKodu)

{

            try

            {

                using (ProbelTESTEntities context = EntityProvider<ProbelTESTEntities>.NewContainer())

                {

                    TEST_TABLE param = context.TEST_TABLE.Where(x => x.SISTEM_ID == (decimal)sistemKodu &&

                                                                                        x.DEPARTMENT_ID == CommonInfos.ActiveUser.Department.Id &&

                                                                                        x.KODU == parametreKodu)

                                                                                        .SingleOrDefault();

                    return param.Assigned() ? param.DEGERI.ToUpper() : null;

                }

            }

            catch

            {

                return null;

            }

}