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![[Discussion] ADO.Net OLEDB Connection Empty](https://2img.net/i/empty.gif) |  Subject: [Discussion] ADO.Net OLEDB Connection Mon Oct 31, 2011 8:07 am | |
| ADO.NET OLEDB ConnectionAn instance of the OleDbConnection class in .NET Framework is supported the OLEDB Data Provider. The OleDbConnection instance takes Connection String as argument and pass the value to the Constructor statement. When the connection is established , SQL Commands may be executed, with the help of the Connection Object, to retrieve or manipulate data in the database.
Once the Database activities over , Connection should be closed and release the resources . The Close() method in SqlConnection class is used to close the Database Connection. The Close method rolls back any pending transactions and releases the Connection from the Database connected by the OLEDB Data Provider.- Click Here for Source Code:
Imports System.Data.OleDb
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim connetionString As String
Dim cnn As OleDbConnection
connetionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=yourdatabasename.mdb;"
cnn = New OleDbConnection(connetionString)
Try
cnn.Open()
MsgBox("Connection Open ! ")
cnn.Close()
Catch ex As Exception
MsgBox("Can not open connection ! ")
End Try
End Sub
End Class
You have to provide the necessary informations to the Connection String.
connetionString = "Provider = Microsoft.Jet.OLEDB.4.0; Data Source = yourdatabasename.mdb;"
From the above statement replace yourdatabasename.mdb to the actual names. | |
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