| | | StrataFrame User
       
Group: StrataFrame Users Last Login: 07/16/2008 12:26:47 PM Posts: 405, Visits: 1,682 |
| | Hi, I am trying to do the following: I have a form with some fields I would like to modify using a ChildFormDialog. I have setup all properties and it is working just fine when adding, editing this record, the information is translated back to the parent form, but when I try to Undo it will perform an Undo in the whole record including data in the parent form. Is there a way to control what fields to Undo in the translated BO in the ChildFormDialog?
So far, I have not find a way to just undo specifics fields in the BO. Since this ChildFormDialog will only modify 5 fields of this BO, I may need to create these properties in the form so I can have control of Undoing any changes in the ChildFormDialog.
Edhy RijoProgytech (Computer Consultants) |
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StrataFrame Developer

Group: StrataFrame Developers Last Login: Yesterday @ 9:36:54 PM Posts: 4,200, Visits: 4,251 |
| | I have never actually had this need...nor have I heard of this need. You can undo 3 different ways: MyBo.Undo(AllRows) MyBo.Undo(CurrentRowOnly) In the 1.6.6 beta there is a new option to undo by a filter: MyBo.UndoByFilter("FilterExpression ") If you want to "Undo" certain fields, then you will need to cycle through the current row and replace the Current value with the OriginalValue: MyBo.CurrentRow.Item("MyFieldname") = MyBo.CurrentRow.Item("MyFieldName",DataRowVersion.Original) |
| | | | StrataFrame User
       
Group: StrataFrame Users Last Login: 07/16/2008 12:26:47 PM Posts: 405, Visits: 1,682 |
| Trent L. Taylor (04/28/2008)
MyBo.CurrentRow.Item("MyFieldname") = MyBo.CurrentRow.Item("MyFieldName",DataRowVersion.Original) Hi trent, using the DataRowVersion.Original give me what I wanted, also I found that the TextBoxBase control has an Undo() method which will also provide this need. Even though you have not have this need, in VFP I have make a lot of use of the functions CURVAL() & OLVAL() for this type of scenarios and I think it would be a good idea to have a more direct access to the DataRowVersion.Original and maybe it could be an enhancement to add a property to the BO which will return this value for easy use by the developer. Again, this is just a though Thanks for the recommendations!
Edhy RijoProgytech (Computer Consultants) |
| | | | 
StrataFrame Developer

Group: StrataFrame Developers Last Login: Yesterday @ 9:36:54 PM Posts: 4,200, Visits: 4,251 |
| The row level stuff that I menteioned is the OLDVAL and CURVAL route in ADO.NET. |
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