Data Grid View with Custom Multi Column Combo Box Columns
Using version 2.0.34 on VS 2017 the drop down drops with no height despite the height being set and having a value at the time the drop down event fires.
This behaviour is the same for both edge and chrome.
(Frank has the code)
For some bizarre reason when the MCCB is column is first activated the drop down is set to not visible.
Setting the drop down to visible on the dropdown event fixes the issue.
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