ok....one more..

I've created a .vb file in that i have some functions..for database...
i need to call taht function from my aspx file's button (in this file i'm having a button.on that button's click event i want to call that .vb file function) how can i do this...

Thanx!!!

If you are using VS.NET you can't mix C# & VB file in the same application.Put the .dll for the .VB file inside your c# application using References in VS.NET.Include the namespace and you will be able to access methods written in that file in your .aspx.

some thing like this..i've tried...
--------------------------------------------
Public Class SQl_insert
    Public Function insert(ByVal userid As Int32, ByVal username As String, ByVal password As String, ByVal user As String, ByVal firstname As String, ByVal lastname As String, ByVal phone As Int32, ByVal street As String, ByVal city As String, ByVal state As String, ByVal zip As Int32, ByVal country As String, ByVal Othercont As String)
        Dim sqlConn As SqlConnection
        Dim sqlCmd As SqlCommand
        Dim sqlCmd2 As SqlCommand
        Dim res As String

        sqlConn = New SqlConnection("server=localhost;uid=sa; pwd=;database=Databases;")
        sqlConn.Open()
        sqlCmd = New SqlCommand("Insert User_login_info values('username','password','User')", sqlConn)
        sqlCmd2 = New SqlCommand("Insert User_detail_info values('firstname','lastname',phone,'street','city ','state',zip,'country','Othercont')", sqlConn)
        sqlCmd.ExecuteNonQuery()
        sqlCmd2.ExecuteNonQuery()
        sqlConn.Close()

    End Function
End Class

'In aspx page..
'Dim insrt As SQl_insert
' insrt.insert(userid,tbox3,tbox4,tbox1,tbox2,tbox5, tbox6,tbox7,tbox8,tbox9,tbox10,tbox11,radiobutton1 )
-------------------------------------------

In Aspx page,
You should not use 'Dim insrt As SQl_insert
Create an instance of the Class SQl_insert using New operator.
and call the insert method.

Thanx..For Help...