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DataBind Excel Online Data to the DevExpress Data Grid


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

The ADO.NET Provider for Excel 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.

You can connect to a workbook by providing authentication to Excel Online and then setting the following properties:

  • Workbook: Set this to the name or Id of the workbook.

    If you want to view a list of information about the available workbooks, execute a query to the Workbooks view after you authenticate.

  • UseSandbox: Set this to true if you are connecting to a workbook in a sandbox account. Otherwise, leave this blank to connect to a production account.

You use the OAuth authentication standard to authenticate to Excel Online. See the Getting Started section in the help documentation for a guide. Getting Started also guides you through executing SQL to worksheets and ranges.

Windows Forms Controls

The code below shows how to populate a DevExpress chart with Excel Online data. The ExcelOnlineDataAdapter 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 (ExcelOnlineConnection connection = new ExcelOnlineConnection( "InitiateOAuth=GETANDREFRESH")) { ExcelOnlineDataAdapter dataAdapter = new ExcelOnlineDataAdapter( "SELECT Id, Column1 FROM Test_xlsx_Sheet1", 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[] { "Column1" }); 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 Excel Online data. The ExcelOnlineDataAdapter 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 (ExcelOnlineConnection connection = new ExcelOnlineConnection( "InitiateOAuth=GETANDREFRESH")) { ExcelOnlineDataAdapter ExcelOnlineDataAdapter1 = new ExcelOnlineDataAdapter("SELECT Id, Column1 FROM Test_xlsx_Sheet1", connection); DataTable table = new DataTable(); ExcelOnlineDataAdapter1.Fill(table); DevExpress.XtraCharts.Series series = new Series("Series1", ViewType.Bar); WebChartControl1.Series.Add(series); series.DataSource = table; series.ValueDataMembers.AddRange(new string[] { "Column1" }); series.ArgumentScaleType = ScaleType.Qualitative; series.ArgumentDataMember = "Id"; series.ValueScaleType = ScaleType.Numerical; ((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true; }