Map database Column names in SSRS

Hi All,

Could any one help me how to map Database column names in Fields/Textboxes in SSRS?
Ex:
 If the table has the data like following

Name	Desiganation	Salary
ABC	XYZ	10000

I just wanted to display in the Report after mapping the Column names not Data.Please help me on this.

Thanks & Regards,
Prasant