Control sort order of UDO Child

Question

Hey All,
Can anyone tell me how I can control the display order of a document UDO lines matrix? We have document lines created that have a date in the data and the client would like the data to display with the newest entries on top.
Anyone know how I can do this?

Answer 1

I can see one possibility, but I have never tried it on a UDO screen.  Basically I am thinking you might be able to use a variation on a technique I described previously for adding sorting into a DBDatasource based screen
Re: Sort data in matrix using DBDataSources
Theoretically this might work for your UDO although you would also need to handle the fact that the UDO itself will be attempting to auto-populate the matrix whereas in my previous posting the matrix population was always under user control. (Either matrix.clear or set bubbleevent = false might handle this additional complexity)
I think you could probably end up with something like the following
- Intercept MATRIX_LOAD event
- ??matrix.Clear??
- **Populate Array from dbdatasource & Quicksort it**
- for counter = 0 to (DBDataSource.Size - 1)
-    Set offset on DBDataSource to **offset from Array**
-    Matrix.Addrow
- next
- ??BubbleEvent = false??
I have never tried it so it might not work out when it comes to updating, but on the plus side it should be pretty quick to add into an existing screen to test.
One final thought - For a <b>really</b> quick test to see if it is likely to work before going to the trouble of introducing the array & proper sorting routine, simply loop through the dbdatasource from last record down to first record and see if everything still works with the rows displayed in reverse order.
eg.
- Intercept MATRIX_LOAD event
- ??matrix.Clear??
- for (DBDataSource.Size - 1) to Counter Step -1
-    Set offset on DBDataSource to counter
-    Matrix.Addrow
- next
- ??BubbleEvent = false??
Hope it works out,
John.