// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
private void DataBindingFeatures_Load(object sender, EventArgs e)
{
    // The path to the documents directory.
    string dataDir = Utils.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

    // Creating Select query to fetch data from database
    string query = "SELECT * FROM Products ORDER BY ProductID";

    // Creating connection string to connect with database
    string conStr = @"Provider=microsoft.jet.oledb.4.0;Data Source=" + dataDir + "dbDatabase.mdb";

    // Creating OleDbDataAdapter object that will be responsible to open/close connections with database, fetch data and fill DataSet with data
    adapter = new OleDbDataAdapter(query, conStr);

    // Setting MissingSchemaAction to AddWithKey for getting necesssary primary key information of the tables
    adapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;

    /*
     * Creating OleDbCommandBuilder object to create insert/delete SQL commmands
     * automatically that are used by OleDbDatAdapter object for updating
     * changes to the database
    */
    cb = new OleDbCommandBuilder(adapter);

    // Creating DataSet object
    ds = new DataSet();

    // Filling DataSet with data fetched by OleDbDataAdapter object
    adapter.Fill(ds, "Products");
}