Genki

I am just bearly learning asp.net and need some help I have created a simple form that inserts rows into an sql database. The Problem is when ever I hit the refresh button it also inserts a row. Is there an easy fix for this.

New to the whole ASP.Net scene I am trying to do a simple database query with a INITCAP function but each time it comes up with the system.indexoutoffrangeexecption. Can some one please help me out with this? Dim strSQL as string = "Select dbo.INITCAP(fname), dbo.INITCAP(lname), tellernum, username from employees where tellernum = 345;" Dim cmd as new sqlcommand(strSQL, objConnection) Dim reader1 as SQLdataReader objConnection.open() reader1 = cmd.executereader() vuserid.text = reader1.item("username") & " " & reader1.item(tellernum") vname.text = reader1.item("fname") & " " & reader1.item("lname")