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DataBind Dropbox Data to the DevExpress Data Grid
Use the CData ADO.NET Provider for Dropbox with the DevExpress Windows Forms and Web controls to provide Dropbox data to a chart.
The ADO.NET Provider for Dropbox 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.
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;
}
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Dropbox ADO.NET Provider
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