VB.NETCustom Editors Need Help
Listing 3. A custom drop-down editor requires two custom classes, one of which is a "go-between" class. It's responsible for communication between the PropertyGrid and the drop-down user interface. ![]() Public Class LatLongEditor Inherits UITypeEditor Public Overloads Overrides _ Function GetEditStyle(...) Return UITypeEditorEditStyle.DropDown End Function Public Overloads Overrides _ Function EditValue( _ context, provider, value) As Object ' ----- Prompt with a drop-down. Dim uiDisplay As New LatLongEditorUI uiDisplay.EditorService = _ provider.GetService(...) uiDisplay.GeogLocation = _ CType(value, LatLong) ' ----- Display the editor, ' return the result. useService.DropDownControl(uiDisplay) Return uiDisplay.GeogLocation End Function End Class |