I have an oledbconnection called myConnection declared in a module. and it is called in a form.
how should close the oledbconnection myConnection ? should I close it in the module itself? if yes how.?
the code for the form is:
the code for the module is:
how should close the oledbconnection myConnection ? should I close it in the module itself? if yes how.?
the code for the form is:
Code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Str As String = "SELECT * FROM Login WHERE username='" & txtUsername.Text & "' AND password='" & txtPassword.Text & "'"
Dim cmd As OleDbCommand = New OleDbCommand(Str, DBconnection)
dr = cmd.ExecuteReader
If dr.HasRows Then
MsgBox("successfull")
Else : MsgBox("incorrect username or password")
End If
End SubCode:
Imports System.Data
Imports System.Data.OleDb
Module Module1
Friend conString As String
Public dr As OleDbDataReader
Public Function DBconnection() As OleDbConnection
Dim myConnection As New OleDb.OleDbConnection
conString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source = D:\vb programs\working copy for windows application 4\WindowsApplication4\student.mdb"
myConnection = New OleDb.OleDbConnection(conString)
myConnection.Open()
Return myConnection
End Function
End Module