Chaine de connection SQL SERVER en VB.net

bonjour,

dans vb.net 8 je fais comme ca:

Imports System
Imports System.Data
Imports System.Data.SqlClient

Module Module1

Friend con As SqlConnection

Sub Brancher()

Dim PWD As String
Dim Suser As String
Dim Srv As String
PWD = "cogito"
Suser = "sa"
Srv = "HAMRIS\SQLEXPRESS"

con = New SqlConnection("Data Source=.\SQLEXPRESS;Password=" & PWD & ";Persist Security Info=true;User ID=" & Suser & ";Initial Catalog=G_TICKETS;Data Source=" & Srv & "")

End Sub

'connexion

Public Sub Connect()
Try
con.Open()
Catch ex As Exception
con.Close()
con.Open()
End Try
End Sub

'deconnexion

Public Sub Deconnect()
Try
con.Close()
Catch ex As Exception
con.Open()
con.Close()
End Try
End Sub

End Module

et en vb6 je fais comme ca:

Public Con As New ADODB.Connection

Public Usario, TpUser As String

Public ErrDt As Boolean

Public D_R, D_A, F_R, F_A, F_F, BL_C, BL_F, V_C, B_C, D_P, Av_C, Av_F, R_C, R_F, S_C, S_F, Ch_C, Ch_F As Boolean

Public Cas_Modif, Ref_Rep As Boolean

'Public Err_con As Boolean

Public Sub Brancher()
Dim sConnect As String
Dim PWD As String
Dim Suser As String
Dim Srv As String
On Error GoTo err_cnparc

PWD = "cogito"
Suser = "sa"
'Srv = "HAMRIS\SQLEXPRESS"
'Srv = ".\SQLEXPRESS"
Srv = "192.168.1.10\SQLEXPRESS"
'Srv = "IRRITER\SQLEXPRESS"

Con = "Provider=SQLOLEDB.1;Password=" & PWD & ";Persist Security Info=true;User ID=" & Suser & ";Initial Catalog=IRRI_TER;Data Source=" & Srv

Con.Open

If Con.State = adStateOpen Then
'MsgBox "Connexion ok "
Else
MsgBox "Connexion impossible "
End If
err_cnparc:
If Con.State <> adStateOpen Then
MsgBox Err.Description, vbOKOnly + vbExclamation, "Erreur de connexion"

'Err_con = True
'Ressayer_Connexion.Show
End If
End Sub

_____________________
mais pour voir tous les types de connexions au bd voir ca:

http://www.connectionstrings.com/

bonne courage.