diff --git a/Src/Asp.Net/SqlSugar/Entities/ConnectionConfig.cs b/Src/Asp.Net/SqlSugar/Entities/ConnectionConfig.cs
index 59057cdbb..006a693c3 100644
--- a/Src/Asp.Net/SqlSugar/Entities/ConnectionConfig.cs
+++ b/Src/Asp.Net/SqlSugar/Entities/ConnectionConfig.cs
@@ -10,7 +10,7 @@ namespace SqlSugar
         /// <summary>
         ///DbType.SqlServer Or Other
         /// </summary>
-        public string DbType { get; set; }
+        public DbType DbType { get; set; }
         /// <summary>
         ///Database Connection string
         /// </summary>
diff --git a/Src/Asp.Net/SqlSugar/Entities/DbType.cs b/Src/Asp.Net/SqlSugar/Entities/DbType.cs
deleted file mode 100644
index 202b23010..000000000
--- a/Src/Asp.Net/SqlSugar/Entities/DbType.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-
-namespace SqlSugar
-{
-    public partial class DbType
-    {
-        public const string MySql = "MySql";
-        public const string SqlServer = "SqlServer";
-        public const string Sqlite = "Sqlite";
-        public const string Oracle = "Oracle";
-    }
-}
diff --git a/Src/Asp.Net/SqlSugar/Enum/DbType.cs b/Src/Asp.Net/SqlSugar/Enum/DbType.cs
new file mode 100644
index 000000000..51be78f4e
--- /dev/null
+++ b/Src/Asp.Net/SqlSugar/Enum/DbType.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace SqlSugar
+{
+    public enum DbType
+    {
+        MySql ,
+        SqlServer,
+        Sqlite,
+        Oracle
+    }
+}
diff --git a/Src/Asp.Net/SqlSugar/Infrastructure/InstanceFactory.cs b/Src/Asp.Net/SqlSugar/Infrastructure/InstanceFactory.cs
index 525f912a9..db3d42196 100644
--- a/Src/Asp.Net/SqlSugar/Infrastructure/InstanceFactory.cs
+++ b/Src/Asp.Net/SqlSugar/Infrastructure/InstanceFactory.cs
@@ -21,7 +21,7 @@ namespace SqlSugar
             else
             {
                 string className = "Queryable";
-                className = GetClassName(currentConnectionConfig.DbType, className);
+                className = GetClassName(currentConnectionConfig.DbType.ToString(), className);
                 ISugarQueryable<T> result = CreateInstance<T, ISugarQueryable<T>>(className);
                 return result;
             }
@@ -35,7 +35,7 @@ namespace SqlSugar
             else
             {
                 string className = "Queryable";
-                className = GetClassName(currentConnectionConfig.DbType, className);
+                className = GetClassName(currentConnectionConfig.DbType.ToString(), className);
                 ISugarQueryable<T, T2> result = CreateInstance<T, T2, ISugarQueryable<T, T2>>(className);
                 return result;
             }
@@ -49,7 +49,7 @@ namespace SqlSugar
             else
             {
                 string className = "Queryable";
-                className = GetClassName(currentConnectionConfig.DbType, className);
+                className = GetClassName(currentConnectionConfig.DbType.ToString(), className);
                 ISugarQueryable<T, T2, T3> result = CreateInstance<T, T2, T3, ISugarQueryable<T, T2, T3>>(className);
                 return result;
             }
@@ -57,35 +57,35 @@ namespace SqlSugar
         public static ISugarQueryable<T, T2, T3, T4> GetQueryable<T, T2, T3, T4>(ConnectionConfig currentConnectionConfig)
         {
             string className = "Queryable";
-            className = GetClassName(currentConnectionConfig.DbType, className);
+            className = GetClassName(currentConnectionConfig.DbType.ToString(), className);
             ISugarQueryable<T, T2, T3, T4> result = CreateInstance<T, T2, T3, T4, ISugarQueryable<T, T2, T3, T4>>(className);
             return result;
         }
         public static ISugarQueryable<T, T2, T3, T4, T5> GetQueryable<T, T2, T3, T4, T5>(ConnectionConfig currentConnectionConfig)
         {
             string className = "Queryable";
-            className = GetClassName(currentConnectionConfig.DbType, className);
+            className = GetClassName(currentConnectionConfig.DbType.ToString(), className);
             ISugarQueryable<T, T2, T3, T4, T5> result = CreateInstance<T, T2, T3, T4, T5, ISugarQueryable<T, T2, T3, T4, T5>>(className);
             return result;
         }
         public static ISugarQueryable<T, T2, T3, T4, T5, T6> GetQueryable<T, T2, T3, T4, T5, T6>(ConnectionConfig currentConnectionConfig)
         {
             string className = "Queryable";
-            className = GetClassName(currentConnectionConfig.DbType, className);
+            className = GetClassName(currentConnectionConfig.DbType.ToString(), className);
             ISugarQueryable<T, T2, T3, T4, T5, T6> result = CreateInstance<T, T2, T3, T4, T5, T6, ISugarQueryable<T, T2, T3, T4, T5, T6>>(className);
             return result;
         }
         public static ISugarQueryable<T, T2, T3, T4, T5, T6, T7> GetQueryable<T, T2, T3, T4, T5, T6, T7>(ConnectionConfig currentConnectionConfig)
         {
             string className = "Queryable";
-            className = GetClassName(currentConnectionConfig.DbType, className);
+            className = GetClassName(currentConnectionConfig.DbType.ToString(), className);
             ISugarQueryable<T, T2, T3, T4, T5, T6, T7> result = CreateInstance<T, T2, T3, T4, T5, T6, T7, ISugarQueryable<T, T2, T3, T4, T5, T6, T7>>(className);
             return result;
         }
         public static ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> GetQueryable<T, T2, T3, T4, T5, T6, T7, T8>(ConnectionConfig currentConnectionConfig)
         {
             string className = "Queryable";
-            className = GetClassName(currentConnectionConfig.DbType, className);
+            className = GetClassName(currentConnectionConfig.DbType.ToString(), className);
             ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> result = CreateInstance<T, T2, T3, T4, T5, T6, T7, T8, ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8>>(className);
             return result;
         }
@@ -94,28 +94,28 @@ namespace SqlSugar
         public static ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8,T9> GetQueryable<T, T2, T3, T4, T5, T6, T7, T8,T9>(ConnectionConfig currentConnectionConfig)
         {
             string className = "Queryable";
-            className = GetClassName(currentConnectionConfig.DbType, className);
+            className = GetClassName(currentConnectionConfig.DbType.ToString(), className);
             ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8,T9> result = CreateInstance<T, T2, T3, T4, T5, T6, T7, T8,T9, ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8,T9>>(className);
             return result;
         }
         public static ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9,T10> GetQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9,T10>(ConnectionConfig currentConnectionConfig)
         {
             string className = "Queryable";
-            className = GetClassName(currentConnectionConfig.DbType, className);
+            className = GetClassName(currentConnectionConfig.DbType.ToString(), className);
             ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9,T10> result = CreateInstance<T, T2, T3, T4, T5, T6, T7, T8, T9,T10, ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9,T10>>(className);
             return result;
         }
         public static ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10,T11> GetQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10,T11>(ConnectionConfig currentConnectionConfig)
         {
             string className = "Queryable";
-            className = GetClassName(currentConnectionConfig.DbType, className);
+            className = GetClassName(currentConnectionConfig.DbType.ToString(), className);
             ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10,T11> result = CreateInstance<T, T2, T3, T4, T5, T6, T7, T8, T9, T10,T11, ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10,T11>>(className);
             return result;
         }
         public static ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11,T12> GetQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>(ConnectionConfig currentConnectionConfig)
         {
             string className = "Queryable";
-            className = GetClassName(currentConnectionConfig.DbType, className);
+            className = GetClassName(currentConnectionConfig.DbType.ToString(), className);
             ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> result = CreateInstance<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>>(className);
             return result;
         }
@@ -131,23 +131,23 @@ namespace SqlSugar
             }
             else
             {
-                QueryBuilder result = CreateInstance<QueryBuilder>(GetClassName(currentConnectionConfig.DbType, "QueryBuilder"));
+                QueryBuilder result = CreateInstance<QueryBuilder>(GetClassName(currentConnectionConfig.DbType.ToString(), "QueryBuilder"));
                 return result;
             }
         }
         public static InsertBuilder GetInsertBuilder(ConnectionConfig currentConnectionConfig)
         {
-            InsertBuilder result = CreateInstance<InsertBuilder>(GetClassName(currentConnectionConfig.DbType, "InsertBuilder"));
+            InsertBuilder result = CreateInstance<InsertBuilder>(GetClassName(currentConnectionConfig.DbType.ToString(), "InsertBuilder"));
             return result;
         }
         public static UpdateBuilder GetUpdateBuilder(ConnectionConfig currentConnectionConfig)
         {
-            UpdateBuilder result = CreateInstance<UpdateBuilder>(GetClassName(currentConnectionConfig.DbType, "UpdateBuilder"));
+            UpdateBuilder result = CreateInstance<UpdateBuilder>(GetClassName(currentConnectionConfig.DbType.ToString(), "UpdateBuilder"));
             return result;
         }
         public static DeleteBuilder GetDeleteBuilder(ConnectionConfig currentConnectionConfig)
         {
-            DeleteBuilder result = CreateInstance<DeleteBuilder>(GetClassName(currentConnectionConfig.DbType, "DeleteBuilder"));
+            DeleteBuilder result = CreateInstance<DeleteBuilder>(GetClassName(currentConnectionConfig.DbType.ToString(), "DeleteBuilder"));
             return result;
         }
 
@@ -159,44 +159,44 @@ namespace SqlSugar
             }
             else
             {
-                ILambdaExpressions result = CreateInstance<ILambdaExpressions>(GetClassName(currentConnectionConfig.DbType, "ExpressionContext"));
+                ILambdaExpressions result = CreateInstance<ILambdaExpressions>(GetClassName(currentConnectionConfig.DbType.ToString(), "ExpressionContext"));
                 return result;
             }
         }
 
         public static ISqlBuilder GetSqlbuilder(ConnectionConfig currentConnectionConfig)
         {
-            ISqlBuilder result = CreateInstance<ISqlBuilder>(GetClassName(currentConnectionConfig.DbType, "Builder"));
+            ISqlBuilder result = CreateInstance<ISqlBuilder>(GetClassName(currentConnectionConfig.DbType.ToString(), "Builder"));
             return result;
         }
 
         public static IDbBind GetDbBind(ConnectionConfig currentConnectionConfig)
         {
-            IDbBind result = CreateInstance<IDbBind>(GetClassName(currentConnectionConfig.DbType, "DbBind"));
+            IDbBind result = CreateInstance<IDbBind>(GetClassName(currentConnectionConfig.DbType.ToString(), "DbBind"));
             return result;
         }
 
         public static IDbMaintenance GetDbMaintenance(ConnectionConfig currentConnectionConfig)
         {
-            IDbMaintenance result = CreateInstance<IDbMaintenance>(GetClassName(currentConnectionConfig.DbType, "DbMaintenance"));
+            IDbMaintenance result = CreateInstance<IDbMaintenance>(GetClassName(currentConnectionConfig.DbType.ToString(), "DbMaintenance"));
             return result;
         }
 
         public static IDbFirst GetDbFirst(ConnectionConfig currentConnectionConfig)
         {
-            IDbFirst result = CreateInstance<IDbFirst>(GetClassName(currentConnectionConfig.DbType, "DbFirst"));
+            IDbFirst result = CreateInstance<IDbFirst>(GetClassName(currentConnectionConfig.DbType.ToString(), "DbFirst"));
             return result;
         }
 
         public static ICodeFirst GetCodeFirst(ConnectionConfig currentConnectionConfig)
         {
-            ICodeFirst result = CreateInstance<ICodeFirst>(GetClassName(currentConnectionConfig.DbType, "CodeFirst"));
+            ICodeFirst result = CreateInstance<ICodeFirst>(GetClassName(currentConnectionConfig.DbType.ToString(), "CodeFirst"));
             return result;
         }
 
         public static IAdo GetAdo(ConnectionConfig currentConnectionConfig)
         {
-            IAdo result = CreateInstance<IAdo>(GetClassName(currentConnectionConfig.DbType, "Provider"));
+            IAdo result = CreateInstance<IAdo>(GetClassName(currentConnectionConfig.DbType.ToString(), "Provider"));
             return result;
         }
 
diff --git a/Src/Asp.Net/SqlSugar/SqlSugar.csproj b/Src/Asp.Net/SqlSugar/SqlSugar.csproj
index 3fd4c4db3..84e6bee7b 100644
--- a/Src/Asp.Net/SqlSugar/SqlSugar.csproj
+++ b/Src/Asp.Net/SqlSugar/SqlSugar.csproj
@@ -71,6 +71,7 @@
     <Compile Include="Abstract\FilterProvider\FilterProvider.cs" />
     <Compile Include="Abstract\InsertableProvider\InsertableProvider.cs" />
     <Compile Include="Abstract\DeleteProvider\DeleteableProvider.cs" />
+    <Compile Include="Enum\DbType.cs" />
     <Compile Include="Utilities\ReflectionExtensions.cs" />
     <Compile Include="Realization\MySql\CodeFirst\MySqlCodeFirst.cs" />
     <Compile Include="Realization\MySql\DbFirst\MySqlDbFirst.cs" />
@@ -111,7 +112,6 @@
     <Compile Include="Entities\DbResult.cs" />
     <Compile Include="Enum\InitKeyType.cs" />
     <Compile Include="Interface\IFilter.cs" />
-    <Compile Include="Entities\DbType.cs" />
     <Compile Include="Realization\MySql\DbBind\MySqlDbBind.cs" />
     <Compile Include="Realization\MySql\SqlBuilder\MySqlBuilder.cs" />
     <Compile Include="Realization\MySql\SqlBuilder\MySqlDeleteBuilder.cs" />