2

WWPipeLine/WWPipeLine.Map/Tools/Conditions/EditGuanWang/GuanDianXianType.cs

@@ -35,33 +35,33 @@ namespace WWPipeLine.MapTools.Conditions.EditGuanWang
 		protected override void OnLoad(EventArgs e)
 		{
 			//DatasetVector datasetVector = ComsStatic.Datasource.Datasets["JSJDPT"] as DatasetVector;
-			//// 查询 SmID 为20的倍数的记录集(游标属性必须为动态)，批量进行删除操作(每次 recordset 使用完要释放)
 			//EditHistory editHistory = new EditHistory();
-			//editHistory.Capacity = 50;
-			////editHistory.BatchBegin();
-
+			//editHistory.Capacity = 50; 
 			//Recordset recordset1 = datasetVector.GetRecordset(true, CursorType.Dynamic);
 			//editHistory.Add(EditType.AddNew, recordset1, false);
 			//recordset1.AddNew(new GeoPoint(new Point2D(0, 0)));
-			////recordset1.SetFieldValue("objectid", 100001);
+			//recordset1.SetFieldValue("objectid", 100001);
 			//bool result = recordset1.Update();
+			////AddNew以后 不执行Update  肯定是可以Undo  因为都没提交保存到 数据库，不管是文件型 还是 PostgerSql
+			////AddNew以后  执行Update  Undo返回true 但是没有删除掉新增的记录
 
 			//Recordset recordset2 = datasetVector.Query("objectid =24510", CursorType.Dynamic);
-			//editHistory.Add(EditType.Delete, recordset2, false);
-			//result = recordset2.Delete();
+			//editHistory.Add(EditType.Modify, recordset2, false);
+			//recordset1.SetFieldValue("objectid", 245100);
+			//result = recordset2.Update();
+			////Modify以后  执行Update  Undo返回true 会回滚到更改之前的记录
 
+			////结论就是：EditType.AddNew情况下，执行Update后， Undo返回true 但是没有删除掉新增的记录
+			////          EditType.Modify情况下，执行Update后， Undo返回true 会回滚到更改之前的记录 
 			//Recordset recordset3 = datasetVector.Query("objectid =25126", CursorType.Dynamic);
 			//editHistory.Add(EditType.Delete, recordset3, false);
 			//result = recordset3.Delete();
-
-			////editHistory.BatchEnd();
-			//// 判断历史信息是否能够回滚，若能回滚，则进行回滚操作
+			  
 			//while (editHistory.CanUndo)
 			//{
 			//	bool b = editHistory.Undo();
 			//}
-
-			//// 清空并释放历史信息
+			 
 			//editHistory.Clear();
 			//editHistory.Dispose();
 			//return;