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>>>I also have observed that when combo is in a grid, the first time I click on the combo's dropdown arrow, the list drops down for a brief instant, then closes. I have to click on it a 2nd time, and then the dropdown remains open. Until I type anything, at which point it closes. So I have 2 quirks occurring so far with combos inside a grid...
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>>Did you put the code I mentioned, above, in its .GotFocus()? Not sure but I guess the first click is "swallowed" by the grid. Don't know why the combo jitters though. You'd need to set a breakpoint in the grid's .GotFocus() and trace what's hap[pening.
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>No, I did not try adding that code yet. I do notice that ***every other*** time I click on the combo's arrow, the dropdown list flashes for only a second, then disappears. If I click on it again, it remains open. So I do not think it has anything to do with the grid stealing focus away from combo (as the grid is already selected).

And why not? It's not a major system re-write to try it! By this process you'll come to realise why people end up using their own classes of the combo and not the bog-standard as you are seeking :-)

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>I think I am going to start a brand new project and test grid-based combos more thoroughly. Maybe that fact that this project was created by the VFP 6 "converter" (from a FP-DOS 2.6 project) is making my life very difficult :)

What? you on a research grant or something!? :-)
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>>>In my case the grid's column is a PartNumber field from a Products table. The combo is set up as 2 columns, PartNumber and PartDescription. I want the user to be able to type in the part number (if they know it), OR drop down a list of PartNumber/Description choices to pick from. I want the dropdown to incrementally search as they type. Am I asking for to much from this native combo control?
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>>And is it NOT actually incrementally searching as you type, even though the list closes? Does it get there when you put a valid part no. in?
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>When I type the first character, it does incrementally search and move to the first matching item in the dropdown - but then immediately closes. I want it to stay open until I press ENTER or click on a choice.