retrive data from db to text box and grid view

Question

Hiiiii,

I am new in asp.net, i m makeing a one form through which i enter the data into the db, now i want to retrive that data from database to that form ,in form i uses textbox and gridview.. In my db i make a three tables i.e. Pinfo,Acd_dtl and emp_dtl, in these tables i take a one column of id which is unique an all tables. now i want to retrieve data from that tables to my form with the help of search button... to search i take a text box to enter a email id of employee. Now i want that when i fill the email id of employee then all the relevant data of that email id can show me on my form...I take the email id in  the table Pinfo.....

so plzzzz help me guyz..............