异常处理

UAS-出货标签管理(贸易版)/UAS_出货标签管理.cs

@@ -2329,6 +2329,11 @@ namespace UAS_LabelMachine
                 custserialnum = int.Parse(maxnum);
             }
             dt = ExcelHandler.ExcelToDataTable(ImportExcel.FileName, true);
+            if (dt == null)
+            {
+                MessageBox.Show("文件" + ImportExcel.FileName + "被占用");
+                return;
+            }
             sql.Clear();
             sql.Append("select pr_orispeccode,pd_outqty,pr_id,pd_piclass,pd_piid,pd_id,pr_zxbzs,pr_brand,pd_pdno");
             sql.Append(",pd_prodcode,pd_ordercode,pd_orderdetno from prodiodetail left join product on pd_prodcode=pr_code  ");
@@ -2494,7 +2499,7 @@ namespace UAS_LabelMachine
             }
             else
             {
-                MessageBox.Show(ErrMsg);
+                MessageBox.Show(ErrMsg, "超出数量提醒");
             }
         }
     }