Question

我是C＃的新手，我正努力让数据从Access中显示在datagridview上。所以我建立了一个数据库连接，它工作正常。但是加载数据的按钮出现了一个错误，似乎是说线路上存在问题＆＃34; connection.Open（）;＆＃34;

        try
        {

            connection.Open();
            OleDbCommand command = new OleDbCommand();
            command.Connection = connection;
            string query = "select Title, Director * from MVDBtable";
            command.CommandText = query;

            OleDbDataAdapter da = new OleDbDataAdapter(command);
            DataTable dt = new DataTable();
            da.Fill(dt);
            dataGridView1.DataSource = dt;


            connection.Close();
        }

        //show error message 
        catch (Exception ex)
        {
            MessageBox.Show("Error" + ex);
        }
    }

Answer 1

您必须使用正确的语法：

string query = "select Title, Director, * from MVDBtable";

或更可能：

string query = "select Title, Director from MVDBtable";

c＃来自Access的数据不会在datagridview上显示

1 个答案: