修改补差价报错

ecomServer/MainForm.cs

@@ -346,7 +346,7 @@ namespace ErpServer
                                         {
                                             DataTable dataTable = SqlHelper.ExecuteDataset(string.Format("SELECT orderFrom FROM [dbo].[Ce_ErpTradeCellExtend] WHERE ctid = '{0}'", dr["ctid"].ToString())).Tables[0];
                                             int num = 0;
-                                            if (dataTable!= null && !Convert.IsDBNull(dataTable.Rows[0]["orderFrom"]))
+                                            if (dataTable!= null && dataTable.Rows.Count > 0 && !Convert.IsDBNull(dataTable.Rows[0]["orderFrom"]))
                                             {
                                                 num = Convert.ToInt16(dataTable.Rows[0]["orderFrom"]);
                                             }