c#中如何连接access数据库

How to connect access database in c#(c#中如何连接access数据库)

问题描述

我有访问数据库文件，其中包含 7 个表，但我不知道如何连接和显示所有表，如果有人可以帮助我?

I have access database file with 7 tables in it but I don't know how to connect and show all tables, If some one can help me?

这是我的代码，但它没有显示任何内容

this is my code but it doesn't show anything

private void button1_Click(object sender, EventArgs e)
{
    OleDbConnection conn = new OleDbConnection();
    String connection = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\Tables.accdb;Persist Security Info=True";
    string sql  = "SELECT Clients  FROM Tables";
    conn.ConnectionString = connection;
    conn.Open();
    DataSet ds = new DataSet();
    DataGridView dataGridView1 = new DataGridView();
    BindingSource bSource = new BindingSource();
    OleDbDataAdapter adapter = new OleDbDataAdapter(sql,conn);
    adapter.Fill(ds);
    //conn.Close();                               
    dataGridView1.DataSource = ds;

推荐答案

试试这个代码，

public void ConnectToAccess()
{
    System.Data.OleDb.OleDbConnection conn = new 
        System.Data.OleDb.OleDbConnection();
    // TODO: Modify the connection string and include any
    // additional required properties for your database.
    conn.ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;" +
        @"Data source= C:Documents and Settingsusername" +
        @"My DocumentsAccessFile.mdb";
    try
    {
        conn.Open();
        // Insert code to process data.
    }
        catch (Exception ex)
    {
        MessageBox.Show("Failed to connect to data source");
    }
    finally
    {
        conn.Close();
    }
}

http://msdn.microsoft.com/en-us/库/5ybdbtte(v=vs.71).aspx

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