Display verbose information when database exception : OleDbException « Database ADO.net « VB.Net

1. VB.Net
2. Database ADO.net
3. OleDbException

Display verbose information when database exception

Imports System
Imports System.Data
Imports System.Data.SqlClient
Imports System.Collections
Imports System.Windows.Forms
Imports System.Resources

Public Class MainClass
    Shared Dim OleDbConnection As System.Data.OleDb.OleDbConnection

    Shared Sub Main()
       Connect()
       
      Try
         ' display verbose information when database exception
         Display()

      Catch exception As System.Data.OleDb.OleDbException
         Console.WriteLine(exception.StackTrace)
      End Try

       
       Disconnect()
    End Sub

    Shared Sub Display()
       Dim OleDbSelectCommand As System.Data.OleDb.OleDbCommand
       OleDbSelectCommand = New System.Data.OleDb.OleDbCommand()

       OleDbSelectCommand.CommandText = "SELECT ID, FirstName, LastName,Salary FROM Employee"
       OleDbSelectCommand.Connection = OleDbConnection

       Dim AddressBookDataAdapter As System.Data.OleDb.OleDbDataAdapter
       AddressBookDataAdapter = New System.Data.OleDb.OleDbDataAdapter()

       AddressBookDataAdapter.SelectCommand = OleDbSelectCommand


       Dim AddressBookDataSet As System.Data.DataSet
       AddressBookDataSet = New System.Data.DataSet()
       CType(AddressBookDataSet, System.ComponentModel.ISupportInitialize).EndInit()

       AddressBookDataAdapter.Fill(AddressBookDataSet)


         Dim dataTable As DataTable = AddressBookDataSet.Tables(0)

         ' ensure dataTable not empty
         If dataTable.Rows.Count <> 0 Then
            Dim recordNumber As Integer = Convert.ToInt32(dataTable.Rows(0)(0))

            Console.Write( recordNumber.ToString & "  ")
            Console.Write( Convert.ToString(dataTable.Rows(0)(1)) & "  ")
            Console.Write( Convert.ToString(dataTable.Rows(0)(2)) & "  ")
            Console.Write( Convert.ToString(dataTable.Rows(0)(3)) & "  ")

            ' display not-found message
         Else
            Console.WriteLine( "No record found" )
         End If

    End Sub

    Shared Sub Connect()
      OleDbConnection = New System.Data.OleDb.OleDbConnection()

      OleDbConnection.ConnectionString = _
         "Provider=Microsoft.Jet.OLEDB.4.0;Password="""";" & _
         "User ID=Admin;Data Source=Employee.mdb;Mode=Sha" & _
         "re Deny None;Extended Properties="""";" & _
         "Jet OLEDB:System database="""";Jet OLEDB:Regis" & _
         "try Path="""";Jet OLEDB:Database Password="""";" & _
         "Jet OLEDB:Engine Type=5;Jet OLEDB:Dat" & _
         "abase Locking Mode=1;Jet OLEDB:Global Partial " & _
         "Bulk Ops=2;Jet OLEDB:Global Bulk T" & _
         "ransactions=1;Jet OLEDB:New Database " & _
         "Password="""";Jet OLEDB:Create System Databas" & _
         "e=False;Jet OLEDB:Encrypt Database=False;" & _
         "Jet OLEDB:Don't Copy Locale on Compact=" & _
         "False;Jet OLEDB:Compact Without Replica " & _
         "Repair=False;Jet OLEDB:SFP=False"


      Try
         OleDbConnection.Open()
      Catch ex As Exception
         Console.WriteLine(ex.Message)
      End Try
    End Sub

    Shared Sub Disconnect()
      Try
         OleDbConnection.Close()
      Catch ex As Exception
         Console.WriteLine(ex.Message)
      End Try
    End Sub

End Class

               
               

           
       

Employee.zip( 7 k)

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