connecting asp.net web application from vb.net and c# to SQL server

How can i connect to my SQL database from my vb.net asp.net web application and my c# asp.net web application?

by the way, i'm refering to MS SQL Server

Imports System.Data.SqlClient



Public Class Form1 Inherits System.Windows.Forms.Form

Dim SqlConn As SqlConnection

Dim SqlDA As SqlDataAdapter

Dim SQLDS As DataSet

Dim DRow As DataRow


connectstring="Persist Security Info=False;Integrated Security=SSPI;database=northwind;server=mySQLServe r"

Private Sub Form1_Load (ByVal sender As System.Object, ByVal e As System.EventArgs) HandlesMyBase.Load

SqlConn = new SqlConnection("connection String")

SqlDA = new SqlDataAdapter("SqlQuery",SqlConn)

SqlDA.Fill(DS,"Any Name for the Reference")



For Each DRow In ds.Tables ("Customer").Rows

ComboBox1.Items.Add (DRow("Customer_Name"))

Next

End Sub

End Class

thanks for the code

i'm having problems with the code though:

SqlConn = New SqlConnection(connectstring)
--> Too many arguments to 'Public Sub New()'

SqlDA = New SqlDataAdapter(querry, SqlConn)
--> Overload resolution failed because no accessible 'New' can be called with these arguments:
'Public Sub New(selectCommandText As String, selectConnection As System.Data.SqlClient)': Value of type 'mySC_VB.SqlConnection' cannot be converted to 'System.Data.SqlClient.SqlConnection'
'Public Sub New(selectCommandText As String, selectConnectionString As String'): Value of type 'mySC_VB.SqlConnection' cannot be converted to 'String'

im using stored procedures for this, btw