how to change lable name when form loading?

Question

Hi,I am new for Asp.net 

i have one requirement.that is i have two  tables one is" MasterInfo"

Id	Columnname	Engname	devname
1	TNo	TokenNumber	devnumber

I have another table "Master data

TNo	ANo	DocumentType	presenterType

Inetially columnname(Lable) name is TNo.when Form loading i want to display 'TokenNumber'in place of TNo for user understanding purpose

How to write query for this one (or)ant alternate plz help me code.


Thanks inadvance