0
plz查看thic代碼,我想打開(objConnection.Open();
)並關閉此代碼中的數據庫文件,但我不知道應該在哪裏放置數據庫文件(在這個代碼:酒吧),以work.plz幫我可以在ado.net中使用的數據庫文件的位置
public partial class Form1 : Form
{
SqlConnection objConnection = new SqlConnection(
"server=localhost;database=pubs;" +
"user id=sa;password=");
SqlDataAdapter objDataAdapter = new SqlDataAdapter();
DataSet objDataSet = new DataSet();
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
// Set the SelectCommand properties...
objDataAdapter.SelectCommand = new SqlCommand();
objDataAdapter.SelectCommand.Connection =
objConnection;
objDataAdapter.SelectCommand.CommandText =
"SELECT au_lname, au_fname, title, price " +
"FROM authors " +
"JOIN titleauthor ON authors.au_id = " +
"titleauthor.au_id " +
"JOIN titles ON titleauthor.title_id = " +
"titles.title_id " +
"ORDER BY au_lname, au_fname";
objDataAdapter.SelectCommand.CommandType =
CommandType.Text;
// Open the database connection...
objConnection.Open();
// Fill the DataSet object with data...
objDataAdapter.Fill(objDataSet, "authors");
// Close the database connection...
objConnection.Close();
}
}
呃......不清楚你到底是什麼? 如何連接到SQL數據庫? (這是上面的代碼正在做什麼,連接到SQL Server ...)。或者如何實際連接到數據庫文件,如訪問數據庫等? – Xander 2010-09-13 15:58:49