private void AddOperationField(FormContext formContext, BaseField fieldInfo, FilterExpField filterField = null)
{
var widgetContext = WidgetContext.BuildContext(formContext, "OP");
widgetContext.WidgetType = FormControlType.Dropdown;
DropdownWidget widget = (DropdownWidget)ViewModel.FormWidget.WidgetFactory.Create(widgetContext);
widget.Options = GetOptions(fieldInfo.BaseType, fieldInfo.Type);
widget.OnCompile();
if (filterField != null)
{
widget.SetValue((int)filterField.Op);
}
formContext.AddControl(widget);
}
