public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
if (value is string)
{
Type type = Barcodes.GetType((string)value);
return(type == null ? null : Activator.CreateInstance(type));
}
return(base.ConvertFrom(context, culture, value));
}
public override object EditValue(ITypeDescriptorContext context,
IServiceProvider provider, object Value)
{
edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
string name = (Value as BarcodeBase).Name;
ListBox lb = new ListBox();
lb.Items.AddRange(Barcodes.GetItems());
lb.SelectedItem = name;
lb.BorderStyle = BorderStyle.None;
lb.Height = lb.ItemHeight * lb.Items.Count;
lb.Click += new EventHandler(lb_Click);
edSvc.DropDownControl(lb);
string selectedName = (string)lb.SelectedItem;
if (selectedName != name)
{
return(Activator.CreateInstance(Barcodes.GetType(selectedName)));
}
return(Value);
}