ASP.NET Try Catch Exception

        Try
            '*** Code & Command ***'
        Catch ex As Exception
            '*** Event เมื่อเกิด Error ***'
        Finally
            '*** (Option) Event เมื่อคำสั่งสมบูรณ์ ***'
        End Try

Dim objConn As System.Data.OleDb.OleDbConnection
Dim objCmd As System.Data.OleDb.OleDbCommand
Dim strConnString,strSQL As String
Dim Trans As OleDbTransaction

strConnString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="&Server.MapPath("database/mydatabase.mdb")&";Jet OLEDB:Database Password=;"
objConn = New System.Data.OleDb.OleDbConnection(strConnString)
objConn.Open()

'*** Start Transaction ***'
Trans = objConn.BeginTransaction(IsolationLevel.ReadCommitted)

Try

'*** Query 1 ***'
strSQL = "INSERT INTO customer (CustomerID,Name,Email,CountryCode,Budget,Used) " & _
"VALUES ('C005','Weerachai Nukitram','[email protected]','TH','2000000','1000000')"
objCmd = New System.Data.OleDb.OleDbCommand()
With objCmd
.Connection = objConn
.Transaction = Trans
.CommandType = CommandType.Text
.CommandText = strSQL
End With
objCmd.ExecuteNonQuery()

'*** Query 2 ***'
strSQL = "INSERT INTO customer (CustomerID,Name,Email,CountryCode,Budget,Used) " & _
"VALUES ('C005','Weerachai Nukitram','[email protected]','TH','2000000','1000000')"
objCmd = New System.Data.OleDb.OleDbCommand()
With objCmd
.Connection = objConn
.Transaction = Trans
.CommandType = CommandType.Text
.CommandText = strSQL
End With
objCmd.ExecuteNonQuery()

Trans.Commit() '*** Commit Transaction ***'
Me.lblText.Text = "Record is commit"

Catch ex As Exception
Trans.Rollback() '*** RollBack Transaction ***'

Me.lblText.Text = "Record is rollback ("& ex.Message &")"
End Try

objCmd = Nothing
objConn.Close()
objConn = Nothing