DataBind Dropbox Data to the DevExpress Data Grid

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Dropbox ADO.NET Provider

Rapidly create and deploy powerful .NET applications that integrate with Dropbox file storage data including Files, Folders, Users, and more!

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

The CData ADO.NET Provider for Dropbox 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.

Dropbox uses the OAuth authentication standard. To authenticate using OAuth, you can use the embedded credentials or register an app with Dropbox.

See the Getting Started guide in the CData driver documentation for more information.

Windows Forms Controls

The code below shows how to populate a DevExpress chart with Dropbox data. The DropboxDataAdapter 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 (DropboxConnection connection = new DropboxConnection( "InitiateOAuth=GETANDREFRESH")) { DropboxDataAdapter dataAdapter = new DropboxDataAdapter( "SELECT Id, Name FROM Files", 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 Dropbox data. The DropboxDataAdapter 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 (DropboxConnection connection = new DropboxConnection( "InitiateOAuth=GETANDREFRESH")) { DropboxDataAdapter DropboxDataAdapter1 = new DropboxDataAdapter("SELECT Id, Name FROM Files", connection); DataTable table = new DataTable(); DropboxDataAdapter1.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; }