How To Create DropDownList in MY WorkSheet?

1.I want to create a DropDownList in My workSheet,How can use this Aspose.Excel.WorkSheet Object create DropDownlist in My Worksheet? So how to set source in this DropDownList?

OR whice methods can try?

Which kind of DropDownList? Could you please post a file to show your need?

Could you put me in touch with your company address In Nanjing?

I got a message from you but I cannot download your files because it requested a login id and password.

Please send your file to nanjing@aspose.com.