判断导入的格式是否正确

Bailun.DC.Web/Areas/Reports/Controllers/FinanceController.cs

@@ -4613,6 +4613,25 @@ namespace Bailun.DC.Web.Areas.Reports.Controllers
                     var read = new System.IO.StreamReader(file.OpenReadStream());
                     var list = new List<dc_base_income_ebay_paypal>();
                     var s = read.ReadLine();  //不要第一行
+
+                    if (formattype == 1 && s.Substring(0, 2) != "日期")
+                    {
+                        return Json(new
+                        {
+                            success = false,
+                            msg = file.FileName + "不是中文格式"
+                        });
+                    }
+                    else if (formattype != 1 && s.Substring(0, 2) != "日期")
+                    {
+                        return Json(new
+                        {
+                            success = false,
+                            msg = file.FileName + "不是英文格式"
+                        });
+                    }
+
+
                     s = read.ReadLine();
                     var row_index = 1;
                     while (!string.IsNullOrEmpty(s))