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DataBind EDGAR Online Data to the DevExpress Data Grid

Use the CData ADO.NET Provider for EDGAR Online with the DevExpress Windows Forms and Web controls to provide EDGAR Online data to a chart.

The CData ADO.NET Provider for EDGAR Online implements standard ADO.NET data access components that can be used with third-party controls. The standard ADO.NET process for databinding can be followed to enable bidirectional access to live data from UI controls. In this article we show how to use the CData components to databind to the DevExpress Windows Forms and Web controls; you will databind to a chart that displays current data.

  1. Navigate to https://developer.edgar-online.com/ and create an account.
  2. Register a new application and retrieve the AppKey. You should select one of the available Web APIs this application will use like HackPack, Insider Trades or Institutional Ownership.
    Note: HackPack is the most important Web API that an application can use since it supports a large number of endpoints. If you are getting the "Access Denied" error you must create a new app and select the correct Web API which supports the resource you are querying.
  3. After successfully creating a new app, you can access your keys through your "my account" area. Set the AppKey connection property value equal to the Key of your application.

Windows Forms Controls

The code below shows how to populate a DevExpress chart with EDGAR Online data. The EdgarOnlineDataAdapter 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 (EdgarOnlineConnection connection = new EdgarOnlineConnection( "AppKey=20dd8ce9904d422ed89ebde1ad40d")) { EdgarOnlineDataAdapter dataAdapter = new EdgarOnlineDataAdapter( "SELECT Id, Name FROM Subscriptions WHERE SubscriberEmail = 'user@domain.com'", 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[] { "Name" }); series.ArgumentScaleType = DevExpress.XtraCharts.ScaleType.Qualitative; series.ArgumentDataMember = "Id"; 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 EDGAR Online data. The EdgarOnlineDataAdapter 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 (EdgarOnlineConnection connection = new EdgarOnlineConnection( "AppKey=20dd8ce9904d422ed89ebde1ad40d")) { EdgarOnlineDataAdapter EdgarOnlineDataAdapter1 = new EdgarOnlineDataAdapter("SELECT Id, Name FROM Subscriptions WHERE SubscriberEmail = 'user@domain.com'", connection); DataTable table = new DataTable(); EdgarOnlineDataAdapter1.Fill(table); DevExpress.XtraCharts.Series series = new Series("Series1", ViewType.Bar); WebChartControl1.Series.Add(series); series.DataSource = table; series.ValueDataMembers.AddRange(new string[] { "Name" }); series.ArgumentScaleType = ScaleType.Qualitative; series.ArgumentDataMember = "Id"; series.ValueScaleType = ScaleType.Numerical; ((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true; }