Progress bar or Status in ASPX page

Hello Experts,
 
I have a web page that takes lot of data from users. I want that to be stored in Database. So this is taking some time.
 
1) How can I fetch the data from webpage and store in Database (MySQL)? Don't say Dim FirstName as String=txtFN.Text.Tostring(). I know that, but should I Use those many string variables? I almost have 50+ controls that need to saved in Database on Submit button click. what are other options for this?
 
2)Meanwhile, I want all the controls of the page Editable=False. It means it should show a Progress which stops the user from clicking on page here and there. I have done progress bar in Windows application 2 days back from the guidance given by experts in this Forum. Now its time to do in Web application. Please suggest me how do proceed