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Rapidly create and deploy powerful .NET applications that integrate with Teradata databases.

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DataBind Teradata Data to the DevExpress Data Grid


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

The ADO.NET Provider for Teradata 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.

To connect to Teradata, provide authentication information and specify the database server name.

  • User: Set this to the username of a Teradata user.
  • Password: Set this to the password of the Teradata user.
  • DataSource: Specify the Teradata server name, DBC Name, or TDPID.
  • Port: Specify the port the server is running on.
  • Database: Specify the database name. If not specified, the default database is used.

Windows Forms Controls

The code below shows how to populate a DevExpress chart with Teradata data. The TeradataDataAdapter 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 (TeradataConnection connection = new TeradataConnection( "User=myuser;Password=mypassword;Server=localhost;Database=mydatabase;")) { TeradataDataAdapter dataAdapter = new TeradataDataAdapter( "SELECT ProductId, ProductName FROM NorthwindProducts WHERE CategoryId = 5", 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[] { "ProductName" }); series.ArgumentScaleType = DevExpress.XtraCharts.ScaleType.Qualitative; series.ArgumentDataMember = "ProductId"; 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 Teradata data. The TeradataDataAdapter 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 (TeradataConnection connection = new TeradataConnection( "User=myuser;Password=mypassword;Server=localhost;Database=mydatabase;")) { TeradataDataAdapter TeradataDataAdapter1 = new TeradataDataAdapter("SELECT ProductId, ProductName FROM NorthwindProducts WHERE CategoryId = 5", connection); DataTable table = new DataTable(); TeradataDataAdapter1.Fill(table); DevExpress.XtraCharts.Series series = new Series("Series1", ViewType.Bar); WebChartControl1.Series.Add(series); series.DataSource = table; series.ValueDataMembers.AddRange(new string[] { "ProductName" }); series.ArgumentScaleType = ScaleType.Qualitative; series.ArgumentDataMember = "ProductId"; series.ValueScaleType = ScaleType.Numerical; ((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true; }