DataBind Avro Data to the DevExpress Data Grid

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Avro ADO.NET Provider

Rapidly create and deploy powerful .NET applications that integrate with Avro.



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

The CData ADO.NET Provider for Avro 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.

Connect to your local Avro file(s) by setting the URI connection property to the location of the Avro file.

Windows Forms Controls

The code below shows how to populate a DevExpress chart with Avro data. The AvroDataAdapter 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 (AvroConnection connection = new AvroConnection( "URI=C:/folder/table.avroInitiateOAuth=GETANDREFRESH")) { AvroDataAdapter dataAdapter = new AvroDataAdapter( "SELECT Id, Column1 FROM SampleTable_1 WHERE Column2 = 'value_2'", 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 Avro data. The AvroDataAdapter 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 (AvroConnection connection = new AvroConnection( "URI=C:/folder/table.avroInitiateOAuth=GETANDREFRESH")) { AvroDataAdapter AvroDataAdapter1 = new AvroDataAdapter("SELECT Id, Column1 FROM SampleTable_1 WHERE Column2 = 'value_2'", connection); DataTable table = new DataTable(); AvroDataAdapter1.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; }