Add Enable Update Version Validation

Src/Asp.Net/SqlServerTest/Demos/F_VersionValidation.cs

@@ -0,0 +1,55 @@
+using OrmTest.Demo;
+using OrmTest.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OrmTest.Demo
+{
+    public class VersionValidation : DemoBase
+    {
+        public static void Init()
+        {
+            var db = GetInstance();
+            try
+            {
+                for (int i = 0; i < 10; i++)
+                {
+                    var data = new StudentVersion()
+                    {
+                        Id = db.Queryable<Student>().Select(it => it.Id).First(),
+                        CreateTime = DateTime.Now,
+                        Name = ""
+                    };
+                    db.Updateable(data).AS("student").ExecuteCommand();
+
+                    var time = db.Queryable<Student>().Where(it=>it.Id==data.Id).Select(it => it.CreateTime).Single();
+                    data.CreateTime = time.Value;
+                    db.Updateable(data).AS("student").ExecuteCommand();
+
+                    data.CreateTime = time.Value.AddMilliseconds(-1);
+                    db.Updateable(data).AS("student").ExecuteCommand(); 
+                }
+            }
+            catch (Exception ex)
+            {
+                if (ex is SqlSugar.VersionExceptions)
+                {
+                    Console.Write(ex.Message);
+                }
+                else {
+
+                }
+            }
+        }
+
+        public class StudentVersion
+        {
+            public int Id { get; set; }
+            public string Name { get; set; }
+            [SqlSugar.SugarColumn(IsEnableUpdateVersionValidation = true)]
+            public DateTime CreateTime { get; set; }
+        }
+    }
+}