ADO.NET +DBF เวลาคิวรี่ข้อมูลมาแสดง โปรแกรมฟ้อง Error แบบนี้ครับ รบกวนด้วยครับผม

Imports System.Data
Imports System.Data.OleDb

Partial Class _Default
    Inherits System.Web.UI.Page

    Dim objConn As OleDbConnection
    Dim objCmd As OleDbCommand


    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Dim strConnString As String
        strConnString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=F:\WebAppdBase\App_Data;Extended Properties=dBASE IV;User ID=Admin;Password=;"
        objConn = New OleDbConnection(strConnString)
        objConn.Open()

        Call BindData()

        If objConn.State = ConnectionState.Open Then
            lblText.Text = "Access Connected"
        Else
            lblText.Text = "Access Connect Failed"
        End If
    End Sub

    Sub BindData()
        Dim strSQL As String
        strSQL = "SELECT * FROM dBase2"

        Dim dtReader As OleDbDataReader
        objCmd = New OleDbCommand(strSQL, objConn)
        dtReader = objCmd.ExecuteReader()

        '*** BindData to Repeater ***'
        gvShow.DataSource = dtReader
        gvShow.DataBind()

    End Sub

    Protected Sub Page_Unload(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Unload
        objConn.Close()
        objConn = Nothing
    End Sub

End Class