private async Task Expand()
{
// An element location must be known every time we need to show the dropdown. The reason is mainly
// because sometimes input can have different offset based on the changes on the page. For example
// when validation is triggered the input can be pushed down by the error messages.
elementInfo = await JSUtilitiesModule.GetElementInfo(ElementRef, ElementId);
await JSClosableModule.Register(dotNetObjectRef, ElementRef);
Expanded = true;
// automatically set focus to the dropdown so that we can make it auto-close on blur event
ExecuteAfterRender(async() => await DropdownElementRef.FocusAsync());
}
