Thread Split -

What are you trying to load from? If you're trying to load the values from a database or an XML file, then you can use Databinding to bind the combobox to a data source, where you've added all of the choices in advance.

I'm trying to do this from XML exactly, any elaboration for this possible.

DataSet has simple and straightforward method.

DataSet ds=new DataSet();

Use DataSource method to populates combobox control.