Combobox Trouble on win2000/98

[daveh541]

On my windows form, I have two comboboxes, one is above the other. When an item is selected in the first combobox, it fills the second with data pertaining to that selection.

 

When I run my program on Windows 2000 and Windows 98 the top combobox's drop down menu seems to erase the combobox below it. You can see "behind" where the combobox should be. You can still select the combobox and a drop down menu appears, but you can't scroll through it.

 

Any thoughts would be greatly appreciated.

[Volte]

I don't understand.. could you attach a small, appropriately sized screenshot of what happens?

 

Do you have any specialized OnPaint overrides, or any style that you are setting to the form (using SetStyle, such as UserPaint)?

[ThePentiumGuy]

daveh541: just make them next to each other:D, dont put them on top of each other, it looks messy anyway :)

[daveh541]

Thanks for the replies:

 

Volte: I'm not overiding anything. On XP machines there seems to be no problem with the display. I'm not on the right computer right now, but I will post a screenshot tomorrow.

 

Pentium: Yea it's messy, but i want to know why it's happening :)

[daveh541]

Here is a screenshot of the browser. It shows a datagrid that is in the "Scrap Analysis" tab page.

[daveh541]

Whoops, that was the original, here is the changed.

[daveh541]

note: i'm an idiot. :D

[PlausiblyDamp]

Could be a video driver issue, have you kept you drivers up to date? (or just updated them to a new version?)

[daveh541]

Thanks for the suggestion. I tried updating video drivers but still had the same problem; however, I think I have fixed the situation.

 

The datasource for my combobox was an arraylist that I created programmatically, and would change every time the customer was changed. A Master-Detail type deal. Anyway, I would :

 cmbopart.datasource = nothing 

each time it was changed. I changed this to

 cmbopart.databindings.clear()

and this seems to have corrected the situation on all test platforms.

 

Thanks for all the help and suggestions.

[ThePentiumGuy]

that was weird :)