Dropdown data bind

Hi there,
I have a dropdown where by its involve two tables.
----Table Country
CountryID
Country Name
---Table User
UserID
UserName
CountryID
 
My dropdown will generated from this two tables.
So how can I listed all the CountryName and how can I write the code for the selectedindex incase the users want to edit their information ?


 
 
 
 
 
 
 
 



 


 
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