diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
index 4715346b4..3b671adc4 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
@@ -162,12 +162,12 @@ namespace SqlSugar
             {
                 this.DbType = System.Data.DbType.UInt16;
             }
-            else if (type.Name == "TimeOnly")
+            else if (type?.Name == "TimeOnly")
             {
                 this.DbType = System.Data.DbType.Time;
                 this.Value = UtilMethods.TimeOnlyToTimeSpan(this.Value);
             }
-            else if (type.Name == "DateOnly")
+            else if (type?.Name == "DateOnly")
             {
                 this.DbType = System.Data.DbType.Date;
                 this.Value = UtilMethods.DateOnlyToDateTime(this.Value);
diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
index 4715346b4..3b671adc4 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
@@ -162,12 +162,12 @@ namespace SqlSugar
             {
                 this.DbType = System.Data.DbType.UInt16;
             }
-            else if (type.Name == "TimeOnly")
+            else if (type?.Name == "TimeOnly")
             {
                 this.DbType = System.Data.DbType.Time;
                 this.Value = UtilMethods.TimeOnlyToTimeSpan(this.Value);
             }
-            else if (type.Name == "DateOnly")
+            else if (type?.Name == "DateOnly")
             {
                 this.DbType = System.Data.DbType.Date;
                 this.Value = UtilMethods.DateOnlyToDateTime(this.Value);