DataBind QuickBooks Online Data to the DevExpress Data Grid

The ADO.NET Provider for QuickBooks Online by CData incorporates conventional ADO.NET data access components compatible with third-party controls. You can adhere to the standard ADO.NET data binding procedures to establish two-way access to real-time data through UI controls. This article will demonstrate the utilization of CData components for data binding with DevExpress UI Controls (Windows Forms and Web controls), specifically binding to a chart that visualizes live data.

Getting Started

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QuickBooks Online uses the OAuth authentication standard. OAuth requires the authenticating user to log in through the browser. To authenticate using OAuth, you can use the embedded OAuthClientId, OAuthClientSecret, and CallbackURL or you can obtain your own by registering an app with Intuit. Additionally, if you want to connect to sandbox data, set UseSandbox to true.

See the Getting Started chapter of the help documentation for a guide to using OAuth.

Windows Forms Controls

The code below shows how to populate a DevExpress chart with QuickBooks Online data. The QuickBooksOnlineDataAdapter binds to the Series property of the chart control. The Diagram property of the control defines the x- and y-axes as the column names.

using (QuickBooksOnlineConnection connection = new QuickBooksOnlineConnection(
"InitiateOAuth=GETANDREFRESH;")) {
 QuickBooksOnlineDataAdapter dataAdapter = new QuickBooksOnlineDataAdapter(
 "SELECT DisplayName, Balance FROM Customers", connection);
 
 DataTable table = new DataTable();
 dataAdapter.Fill(table);
 DevExpress.XtraCharts.Series series = new DevExpress.XtraCharts.Series();
 chartControl1.Series.Add(series);
 series.DataSource = table;
 series.ValueDataMembers.AddRange(new string[] { "Balance" });
 series.ArgumentScaleType = DevExpress.XtraCharts.ScaleType.Qualitative;
 series.ArgumentDataMember = "DisplayName";
 series.ValueScaleType = DevExpress.XtraCharts.ScaleType.Numerical;
 chartControl1.Legend.Visibility = DevExpress.Utils.DefaultBoolean.False;
 ((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true; 
}

Web Controls

The code below shows how to populate a DevExpress Web control with QuickBooks Online data. The QuickBooksOnlineDataAdapter binds to the Series property of the chart; the Diagram property defines the x- and y-axes as the column names.

using DevExpress.XtraCharts;

using (QuickBooksOnlineConnection connection = new QuickBooksOnlineConnection(
"InitiateOAuth=GETANDREFRESH;"))
{
 QuickBooksOnlineDataAdapter QuickBooksOnlineDataAdapter1 = new QuickBooksOnlineDataAdapter("SELECT DisplayName, Balance FROM Customers", connection);
 DataTable table = new DataTable();
 QuickBooksOnlineDataAdapter1.Fill(table);
 DevExpress.XtraCharts.Series series = new Series("Series1", ViewType.Bar);
 WebChartControl1.Series.Add(series);
 series.DataSource = table;
 series.ValueDataMembers.AddRange(new string[] { "Balance" });
 series.ArgumentScaleType = ScaleType.Qualitative;
 series.ArgumentDataMember = "DisplayName";
 series.ValueScaleType = ScaleType.Numerical;
 ((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true;
}