C#如何打开DBF数据库文件

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsApplication4
{
public partial class Form1 : Form
{

public Form1()
{
InitializeComponent();
}

private void BindData(string table)
{
try
{
string str = table.Substring(0, table.LastIndexOf('\\'));
using (System.Data.OleDb.OleDbConnection conn = new System.Data.OleDb.OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + str
+ ";Extended Properties=dBASE IV;User ID=Admin;Password="))
{
conn.Open();
string sql = @"select * from " + table.Substring(table.LastIndexOf("\\"));
System.Data.OleDb.OleDbDataAdapter da = new System.Data.OleDb.OleDbDataAdapter(sql, conn);
DataTable dt = new DataTable();
da.Fill(dt);
this.dataGridView1.DataSource = dt.DefaultView;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}

}

private void button1_Click(object sender, EventArgs e)
{
this.openFileDialog1.FileName = "*.DBF";
if (openFileDialog1.ShowDialog()== DialogResult.OK)
{
this.BindData(this.openFileDialog1.FileName);
}
}
}
}