retreving the data from another table

Question

 i send the attach files of two design page.

 in the first design page 1 i have Tds,Excess Mobile these are the two fileds those two values of datas are stored in the database.this table name i salary


  then i  created second desing page 2  i have two fields such as 

  tds                 textbox

 excessmobile      textbox

i want to retreive the salary table amt to be arrived in the second design page.this table name is pay.

how to do usign csharp code.