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GeneralRe: Datagridview cell not updating in Windows 2008 SP2 server Pin
harvid13-Apr-12 3:05
harvid13-Apr-12 3:05 
AnswerRe: Datagridview cell not updating in Windows 2008 SP2 server Pin
Luc Pattyn13-Apr-12 3:57
sitebuilderLuc Pattyn13-Apr-12 3:57 
1. Thank you for a bunch of code, unformatted code at that, where it is all about nested IFs and no visible indentation. There is no way to read and understand that as it stands. You should edit your message and apply PRE tags to the code.

2.
You should NOT be calling Application.DoEvents(). Not there, not anywhere. It is a very dangerous method, misunderstood by most everyone. If you think you need it, something is wrong with your code and adding it is bound to make things worse as it disturbs the natural flow of events. So remove it everywhere! And remove it completely, don't just turn it into a comment, as if there would still be some value left in it.

3.
If you are assigning new cell values in there, that will cause a new barrage of events being fired, which you probably don't want. You certainly don't want an avalanche of events (as a StackOverflow would result).

One way to handle it could be this:

Dim currentStatus as String = ...  ' save the content of status cell
Dim newStatus as String = currentStatus
...
' lots of conditional code, which does not change the status cell;
' if a new status is required, store it in newStatus.
...
If newStatus <> currentStatus
    ' now store the new status in its cell (this will cause more events, however there
    ' will be only one round of them as you now test for an actual change)
Endif


Smile | :)
Luc Pattyn [My Articles] Nil Volentibus Arduum

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