Update Demo

Src/Asp.Net/SqlServerTest/Config.cs

@@ -8,8 +8,8 @@ namespace OrmTest
 {
     public class Config
     {
-        public static string ConnectionString = "server=.;uid=sa;pwd=@jhl85661501;database=SQLSUGAR4XTEST";
-        public static string ConnectionString2 = "server=.;uid=sa;pwd=@jhl85661501;database=sqlsugar4xtest";
-        public static string ConnectionString3 = "server=.;uid=sa;pwd=@jhl85661501;database=sqlsugar4xtesT";
+        public static string ConnectionString = "server=.;uid=sa;pwd=haosql;database=SQLSUGAR4XTEST";
+        public static string ConnectionString2 = "server=.;uid=sa;pwd=haosql;database=sqlsugar4xtest";
+        public static string ConnectionString3 = "server=.;uid=sa;pwd=haosql;database=sqlsugar4xtesT";
     }
 }

Src/Asp.Net/SqlServerTest/Demos/2_Update.cs

@@ -21,6 +21,9 @@ namespace OrmTest.Demo
 
             //update reutrn Update Count
             var t1 = db.Updateable(updateObj).ExecuteCommand();
+            var t11 = db.Updateable<Student>(it => new Student() { Name = "a", CreateTime = DateTime.Now }).Where(it => it.Id == 11).ExecuteCommand();
+            var t111= db.Updateable<Student>(it => it.Name == "Name").Where(it => it.Id == 1).ExecuteCommand();
+
 
             //Only  update  Name 
             var t3 = db.Updateable(updateObj).UpdateColumns(it => new { it.Name }).ExecuteCommand();

Src/Asp.Net/SqlSugar/SqlSugarClient.cs

@@ -636,6 +636,20 @@ namespace SqlSugar
             result.UpdateParameterIsNull = true;
             return result;
         }
+        public virtual IUpdateable<T> Updateable<T>(Expression<Func<T, T>> columns) where T : class, new()
+        {
+            var result = this.Context.Updateable<T>().UpdateColumns(columns);
+            result.UpdateParameterIsNull = true;
+            return result;
+        }
+        public virtual IUpdateable<T> Updateable<T>(Expression<Func<T, bool>> columns) where T : class, new()
+        {
+            var result = this.Context.Updateable<T>().UpdateColumns(columns);
+            result.UpdateParameterIsNull = true;
+            return result;
+        }
+  
+
         public virtual IUpdateable<T> Updateable<T>(Dictionary<string, object> columnDictionary) where T : class, new()
         {
             InitMppingInfo<T>();