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Base Combo Box

The base combo box control is an advanced combo box control that provides many improvements over the standard combo box control. It essentially separates the edit portion from the drop-down portion, thereby making this architecture powerful and flexible. Users may plug in any list control-derived class as the list for the portion of the combo box using the ListControl property.


  • Any ListControl-derived controls can be displayed in the drop-down portion of the base combo box.
  • Supports autocomplete.
  • Users can specify the external data source for the base combo box control.
  • It provides a flat style mode that lets users draw the control flat or use XP themes.


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