Add demo

Src/Asp.Net/SqlServerTest/Program.cs

@@ -26,6 +26,7 @@ namespace OrmTest
             _a5_GridSave.Init();
             _a6_SqlPage.Init();
             _a7_JsonType.Init();
+            _a8_SelectReturnType.Init();
         }
     }
 

Src/Asp.Net/SqlServerTest/SqlServerTest.csproj

@@ -76,6 +76,7 @@
     <Compile Include="a5_GridSave.cs" />
     <Compile Include="a6_SqlPage.cs" />
     <Compile Include="a7_JsonType.cs" />
+    <Compile Include="a8_SelectReturnType.cs" />
     <Compile Include="UnitTest\Description.cs" />
     <Compile Include="3_EasyQuery.cs" />
     <Compile Include="7_GroupQuery.cs" />

Src/Asp.Net/SqlServerTest/a8_SelectReturnType.cs

@@ -0,0 +1,68 @@
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+
+namespace OrmTest
+{
+    internal class _a8_SelectReturnType 
+    {
+        internal static void Init()
+        {
+            var db = DbHelper.GetNewDb();
+
+            //Create table
+            //建表
+            db.CodeFirst.InitTables<Student>();
+            //init data
+            db.Insertable(new Student() { CreateTime = DateTime.Now, Name = "aa" }).ExecuteCommand();
+
+
+            // 返回匿名对象 (Return anonymous objects)
+            var dynamicList = db.Queryable<Student>().Select<dynamic>().ToList();
+            // SELECT * FROM Student_a8
+
+            // 手动：返回匿名集合，支持跨程序集 (Manually: Return an anonymous collection, supporting cross-assembly)
+            List<dynamic> dynamicListCrossAssembly = db.Queryable<Student>().Select(it => (dynamic)new { id = it.Id }).ToList();
+            // SELECT id AS id FROM Student_a8
+
+            // 手动：返回匿名集合，不能跨程序集 (Manually: Return an anonymous collection, within the same assembly)
+            var dynamicListWithinAssembly = db.Queryable<Student>().Select(it => new { id = it.Id }).ToList();
+            // SELECT id AS id FROM Student_a8
+
+            // 手动：返回类集合-手动 (Manually: Return a class collection manually)
+            List<Student> classList = db.Queryable<Student>().Select(it => new Student { Id = it.Id }).ToList();
+            // SELECT id AS Id FROM Student_a8
+
+            // 自动返回DTO集合: 请升级至 5.1.3.2 版本 (Automatically return DTO collections: Upgrade to version 5.1.3.2)
+            var listDto = db.Queryable<Student>().Select<StudentDto>().ToList();
+
+            // 自动返回DTO: 请升级至 5.1.3.35 版本 (Automatically return DTO: Upgrade to version 5.1.3.35)
+            var listDtoAutoMap = db.Queryable<Student>()
+                .Select(it => new StudentDto
+                {
+                    AppendColumn = 100 // 手动指定一列在自动映射 (Manually specify a column in automatic mapping)
+                },
+                true) // true 表示开启自动映射 (true indicates enabling automatic mapping)
+                .ToList();
+        }
+
+        // 学生表的实体类 (Entity class for the Student table)
+        [SugarTable("Student_a8")]
+        public class Student
+        {
+            [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
+            public int Id { get; set; }
+            public string Name { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+
+        // DTO 数据传输对象 (DTO - Data Transfer Object)
+        public class StudentDto
+        {
+            public int Id { get; set; }
+            public string Name { get; set; }
+            public DateTime CreateTime { get; set; }
+            public int AppendColumn { get; set; }
+        }
+    }
+}