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SqlServerTest/Demo/Update.cs

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+using OrmTest.Models;
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest.Demo
+{
+    public class Update
+    {
+        public static void Init() {
+            var db = GetInstance();
+            var updateObj = new Student() { Id = 1, Name = "jack", SchoolId = 0, CreateTime = Convert.ToDateTime("2017-05-21 09:56:12.610") };
+            var updateObjs = new List<Student>() { updateObj, new Student() { Id = 2, Name = "sun", SchoolId = 0 } }.ToArray();
+            db.IgnoreColumns.Add("TestId", "Student");
+            //db.MappingColumns.Add("id","dbid", "Student");
+
+
+            //update reutrn Update Count
+            var t1= db.Updateable(updateObj).ExecuteCommand();
+
+            //Only  update  Name 
+            var t3 = db.Updateable(updateObj).UpdateColumns(it => new { it.Name }).ExecuteCommand();
+
+
+            //Ignore  Name and TestId
+            var t4 = db.Updateable(updateObj).IgnoreColumns(it => new { it.Name, it.TestId }).ExecuteCommand();
+
+            //Ignore  Name and TestId
+            var t5 = db.Updateable(updateObj).IgnoreColumns(it => it == "Name" || it == "TestId").With(SqlWith.UpdLock).ExecuteCommand();
+
+
+            //Use Lock
+            var t6 = db.Updateable(updateObj).With(SqlWith.UpdLock).ExecuteCommand();
+
+            //update List<T>
+            var t7 = db.Updateable(updateObjs).ExecuteCommand();
+
+            //Re Set Value
+            var t8 = db.Updateable(updateObj)
+                .ReSetValue(it => it.Name == (it.Name + 1)).ExecuteCommand();
+
+            //Where By Expression
+            var t9 = db.Updateable(updateObj).Where(it => it.Id == 1).ExecuteCommand();
+
+            //Update By Expression  Where By Expression
+            var t10 = db.Updateable<Student>()
+                .UpdateColumns(it => new Student() { Name="a",CreateTime=DateTime.Now })
+                .Where(it => it.Id == 11).ExecuteCommand();
+
+            //Rename 
+            db.Updateable<School>().AS("Student").UpdateColumns(it => new School() { Name = "jack" }).Where(it => it.Id == 1).ExecuteCommand();
+            //Update Student set Name='jack' Where Id=1
+        }
+        public static SqlSugarClient GetInstance()
+        {
+            SqlSugarClient db = new SqlSugarClient(new SystemTableConfig() { ConnectionString = Config.ConnectionString, DbType = DbType.SqlServer, IsAutoCloseConnection = true });
+            db.Ado.IsEnableLogEvent = true;
+            db.Ado.LogEventStarting = (sql, pars) =>
+            {
+                Console.WriteLine(sql + "\r\n" + db.RewritableMethods.SerializeObject(pars));
+                Console.WriteLine();
+            };
+            return db;
+        }
+    }
+}