public string Post(Tb_LSP tblsp)
        {
            try
            {
                string query = @"

INSERT INTO [LSPdb].[dbo].[Tb_LSP]
           ([Nomer_Lisensi]
           ,[NPSN]
           ,[Status_Lisensi_LSP]
           ,[Berlaku_Sampai])
     VALUES"
                               + " ('" + tblsp.Nomer_Lisensi + "','" + tblsp.NPSN + "','" + tblsp.Status_Lisensi_LSP + "','" + tblsp.Berlaku_Sampai + "')";
                DataTable table = new DataTable();
                using (var conn = new SqlConnection(ConfigurationManager.ConnectionStrings["LSPdb"].ConnectionString))
                {
                    using (var cmd = new SqlCommand(query, conn))
                    {
                        using (var da = new SqlDataAdapter(cmd))
                        {
                            cmd.CommandType = CommandType.Text;
                            da.Fill(table);
                        }
                    }
                }
                return("Insert Successfully");
            }
            catch (Exception err)
            {
                return(err.Message);
            }
        }
        public string Put(Tb_LSP tblsp)
        {
            try
            {
                string query = @"UPDATE [LSPdb].[dbo].[Tb_LSP] SET "
                               + "      ,[NPSN] = '" + tblsp.NPSN + "'"
                               + "      ,[Status_Lisensi_LSP] = '" + tblsp.Status_Lisensi_LSP + "'"
                               + "      ,[Berlaku_Sampai] = '" + tblsp.Berlaku_Sampai + "'"
                               + "   WHERE [Nomer_Lisensi] = '" + tblsp.Nomer_Lisensi + "'";

                DataTable table = new DataTable();
                using (var conn = new SqlConnection(ConfigurationManager.ConnectionStrings["LSPdb"].ConnectionString))
                {
                    using (var cmd = new SqlCommand(query, conn))
                    {
                        using (var da = new SqlDataAdapter(cmd))
                        {
                            cmd.CommandType = CommandType.Text;
                            da.Fill(table);
                        }
                    }
                }
                return("Update Successfully");
            }
            catch (Exception err)
            {
                return(err.Message);
            }
        }