diff --git a/Src/Asp.Net/SqlSugar/Abstract/DbFirstProvider/DbFirstProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/DbFirstProvider/DbFirstProvider.cs
index a75a61750..796b32645 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/DbFirstProvider/DbFirstProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/DbFirstProvider/DbFirstProvider.cs
@@ -224,7 +224,7 @@ namespace SqlSugar
                     string PropertyText = this.PropertyTemplate;
                     string PropertyDescriptionText = this.PropertyDescriptionTemplate;
                     string propertyName = GetPropertyName(item);
-                    string propertyTypeName =item.DataType;
+                    string propertyTypeName =item.PropertyName;
                     PropertyText = GetPropertyText(item, PropertyText);
                     PropertyDescriptionText = GetPropertyDescriptionText(item, PropertyDescriptionText);
                     PropertyText = PropertyDescriptionText + PropertyText;
@@ -336,11 +336,18 @@ namespace SqlSugar
         }
         private string GetPropertyTypeName(DbColumnInfo item)
         {
-            string result = this.Context.Ado.DbBind.GetPropertyTypeName(item.DataType);
+            string result =item.PropertyType!=null?item.PropertyType.Name:this.Context.Ado.DbBind.GetPropertyTypeName(item.DataType);
             if (result != "string" && result != "byte[]" && result != "object" && item.IsNullable)
             {
                 result += "?";
             }
+            if (result == "Int32") {
+                result = "int";
+            }
+            if (result == "String")
+            {
+                result = "string";
+            }
             return result;
         }
         private string GetPropertyTypeConvert(DbColumnInfo item)
diff --git a/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
index f5c5f9460..500ae4ad7 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
@@ -614,7 +614,8 @@ namespace SqlSugar
                 columns.Add(new DbColumnInfo()
                 {
                      DbColumnName=item.Name,
-                     DataType=UtilMethods.GetUnderType(item.PropertyType).Name
+                     PropertyName= UtilMethods.GetUnderType(item.PropertyType).Name,
+                     PropertyType=UtilMethods.GetUnderType(item.PropertyType)
                 });
             }
             var result = ((this.Context.DbFirst) as DbFirstProvider).GetClassString(columns, ref className);