將Access數據庫添加到C＃dataGridView（僅使用代碼）

Question

我在窗體上有2個dataGridViews，當我運行該應用程序時，什麼也沒有顯示出來。我相信在代碼中添加dataGridView信息，如下所示，我不需要使用Visual Studio的「服務器資源管理器」來添加數據庫。這將是多餘的和/或改變dataGridView的填充結果，對吧？我在代碼中丟失了什麼？

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

namespace WindowsFormsApplication1 
{ 
    public partial class Form1 : Form 
    { 
    public Form1() 
    { 
     InitializeComponent(); 
    } 

    private void Form1_Load(object sender, EventArgs e) 
    { 
     DataSet ds = new DataSet(); 
     OleDbDataAdapter daOrders = new OleDbDataAdapter(); 
     OleDbDataAdapter daReceived = new OleDbDataAdapter(); 
     OleDbConnection vcon = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;data source=C:\Query Form\Database.accdb");  

     OleDbCommand slctOrders = new OleDbCommand("SELECT * FROM script_Orders ORDER BY script"); 
     daOrders.SelectCommand = slctOrders; 
     daOrders.Fill(ds, "tblOrders"); 

     OleDbCommand slctReceived = new OleDbCommand("SELECT * FROM script_Received"); 
     daOrders.SelectCommand = slctReceived; 
     daOrders.Fill(ds, "tblReceived"); 

     dgOrders.DataSource = ds.Tables ["tblOrders"]; 
     dgReceived.DataSource = ds.Tables ["tblReceived"]; 
    } 
    } 
} 

Answer 1

嘗試通過連接到數據適配器...

OleDbCommand slctOrders = new OleDbCommand("SELECT * FROM script_Orders ORDER BY script", vcon); 

我不知道，如果這是你缺少（您可能還需要打開連接，vcon.Open （）），但連接對象和適配器之間必須有一些鏈接。