Release notes for version 2023.4.9.0.
Added support for using the controls with .NET 6.0 and later.
Possible breaking change: In order to support .NET 6.0, the grid control used by the MultiColumnComboBox control was changed from the unsupported DataGrid to the DataGridView control. As a result of this change, the DropDownFormat property was removed. Columns are now added based on the data source and as each one is formatted, a new FormatDropDownColumn event is raised to allow you to modify the column's formatting if necessary.
The following properties were also added to allow configuring some of the settings for the dropdown grid: