Updateable.Wherecolumn add check

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

@@ -113,6 +113,8 @@ namespace OrmTest.Demo
 
             var t23= db.Updateable<Student>(new Student() { })
                 .Where(p => p.SchoolId == SqlFunc.Subqueryable<Student>().Where(s => s.SchoolId == p.Id).Select(s => s.Id)).ExecuteCommand();
+
+            var t24 = db.Updateable(new Student() { }).WhereColumns(it=>it.CreateTime).ExecuteCommand();
         }
     }
 }

Src/Asp.Net/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs

@@ -17,6 +17,7 @@ namespace SqlSugar
         public UpdateBuilder UpdateBuilder { get; set; }
         public IAdo Ado { get { return Context.Ado; } }
         public T[] UpdateObjs { get; set; }
+        public bool UpdateParameterIsNull { get; set; }
         public bool IsMappingTable { get { return this.Context.MappingTables != null && this.Context.MappingTables.Any(); } }
         public bool IsMappingColumns { get { return this.Context.MappingColumns != null && this.Context.MappingColumns.Any(); } }
         public bool IsSingle { get { return this.UpdateObjs.Length == 1; } }
@@ -152,6 +153,7 @@ namespace SqlSugar
 
         public IUpdateable<T> WhereColumns(Expression<Func<T, object>> columns)
         {
+            Check.Exception(UpdateParameterIsNull==true, "Updateable<T>().Updateable is error,Use Updateable(obj).WhereColumns");
             var whereColumns = UpdateBuilder.GetExpressionValue(columns, ResolveExpressType.ArraySingle).GetResultArray().Select(it => this.SqlBuilder.GetNoTranslationColumnName(it)).ToList();
             if (this.WhereColumnList == null) this.WhereColumnList = new List<string>();
             foreach (var item in whereColumns)

Src/Asp.Net/SqlSugar/Interface/IUpdateable.cs

@@ -10,6 +10,8 @@ namespace SqlSugar
     public interface IUpdateable<T> where T : class, new()
     {
         UpdateBuilder UpdateBuilder { get; set; }
+        bool UpdateParameterIsNull { get; set; }
+
         int ExecuteCommand();
         bool ExecuteCommandHasChange();
         Task<int> ExecuteCommandAsync();

Src/Asp.Net/SqlSugar/SqlSugarClient.cs

@@ -532,7 +532,9 @@ namespace SqlSugar
         }
         public virtual IUpdateable<T> Updateable<T>() where T : class, new()
         {
-            return this.Context.Updateable(new T[] { new T() });
+            var result= this.Context.Updateable(new T[] { new T() });
+            result.UpdateParameterIsNull=true;
+            return result;
         }
         public virtual IUpdateable<T> Updateable<T>(Dictionary<string, object> columnDictionary) where T : class, new()
         {