- 修复 时枚举转 int 再转字符串报错；#1781

Author: 2881099

Examples/base_entity/Program.cs

@@ -490,6 +490,13 @@ public class Student : BaseEntity2
         {
             public string Name { get; set; }
         }
+        public record UserDto1(Guid Id, string Username, string GroupName);
+        public class UserDto2
+        {
+            public Guid Id { get; set; }
+            public string Username { get; set; }
+            public string GroupName { get; set; }
+        }
 
         [Table(Name = "class_{0}")]
         public class Class1111
@@ -570,9 +577,9 @@ static void Main(string[] args)
                 //.UseConnectionString(FreeSql.DataType.Firebird, @"database=localhost:D:\fbdata\EXAMPLES.fdb;user=sysdba;password=123456;max pool size=5")
                 //.UseQuoteSqlName(false)
 
-                //.UseConnectionString(FreeSql.DataType.MySql, "Data Source=127.0.0.1;Port=3306;User ID=root;Password=root;Initial Catalog=cccddd;Charset=utf8;SslMode=none;min pool size=1;Max pool size=3;AllowLoadLocalInfile=true")
+                .UseConnectionString(FreeSql.DataType.MySql, "Data Source=127.0.0.1;Port=3306;User ID=root;Password=root;Initial Catalog=cccddd;Charset=utf8;SslMode=none;min pool size=1;Max pool size=3;AllowLoadLocalInfile=true")
 
-				.UseConnectionString(FreeSql.DataType.SqlServer, "Data Source=.;Integrated Security=True;Initial Catalog=freesqlTest;Pooling=true;Max Pool Size=3;TrustServerCertificate=true")
+				//.UseConnectionString(FreeSql.DataType.SqlServer, "Data Source=.;Integrated Security=True;Initial Catalog=freesqlTest;Pooling=true;Max Pool Size=3;TrustServerCertificate=true")
 				//.UseAdoConnectionPool(false)
 				//.UseConnectionString(FreeSql.DataType.PostgreSQL, "Host=127.0.0.1;Port=5432;Username=postgres;Password=123456;Database=tedb;Pooling=true;Maximum Pool Size=2")
 				////.UseConnectionString(FreeSql.DataType.PostgreSQL, "Host=127.0.0.1;Port=5432;Username=postgres;Password=123456;Database=toc;Pooling=true;Maximum Pool Size=2")
@@ -612,6 +619,20 @@ static void Main(string[] args)
             BaseEntity.Initialization(fsql, () => _asyncUow.Value);
             #endregion
 
+            var enumToString = fsql.Select<JoinTest01>().First(s => new
+            {
+                State = ((int)s.JoinTest01Enum2).ToString()
+            });
+
+            var userdto1s = fsql.Select<User1>().Limit(10).ToList<UserDto1>();
+            var userdto11s = fsql.Select<User1>().Limit(10).ToList(a => new UserDto1(a.Id, a.Username, null));
+            var userdto2s = fsql.Select<User1>().Limit(10).ToList<UserDto2>();
+
+
+            var userdto1s2 = fsql.Select<User1, UserGroup>().InnerJoin((a, b) => a.GroupId == b.Id).Limit(10).ToList<UserDto1>();
+            var userdto11s2 = fsql.Select<User1, UserGroup>().InnerJoin((a, b) => a.GroupId == b.Id).Limit(10).ToList((a, b) => new UserDto1(a.Id, a.Username, b.GroupName));
+            var userdto2s2 = fsql.Select<User1, UserGroup>().InnerJoin((a, b) => a.GroupId == b.Id).Limit(10).ToList<UserDto2>();
+
             fsql.Select<User1>().Where(a => a.Id == new Guid("xxx")).ToList(a => new Guid("zzz"));
 
             fsql.Aop.AuditValue += (_, e) =>

FreeSql/Internal/CommonExpression.cs

@@ -2271,7 +2271,7 @@ public static object ExpressionGetValue(Expression exp, out bool success)
                             var expStackFirstMem = expStack.First() as MemberExpression;
                             if (expStackFirstMem.Expression?.NodeType == ExpressionType.Constant)
                                 firstValue = (expStackFirstMem.Expression as ConstantExpression)?.Value;
-                            else
+                            else if (exp.IsParameter() == false)
                                 return Expression.Lambda(exp).Compile().DynamicInvoke();
                             break;
                         case ExpressionType.Call: