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DataBind au Wowma Data to the DevExpress Data Grid

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

The CData ADO.NET Provider for au Wowma 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.

Windows Forms Controls

The code below shows how to populate a DevExpress chart with au Wowma data. The WowmaDataAdapter 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 (WowmaConnection connection = new WowmaConnection( "ApiKey=MyApiKey;ShopId=MyShopId")) { WowmaDataAdapter dataAdapter = new WowmaDataAdapter( "SELECT ItemCode, Price FROM Items", 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[] { "Price" }); series.ArgumentScaleType = DevExpress.XtraCharts.ScaleType.Qualitative; series.ArgumentDataMember = "ItemCode"; 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 au Wowma data. The WowmaDataAdapter 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 (WowmaConnection connection = new WowmaConnection( "ApiKey=MyApiKey;ShopId=MyShopId")) { WowmaDataAdapter WowmaDataAdapter1 = new WowmaDataAdapter("SELECT ItemCode, Price FROM Items", connection); DataTable table = new DataTable(); WowmaDataAdapter1.Fill(table); DevExpress.XtraCharts.Series series = new Series("Series1", ViewType.Bar); WebChartControl1.Series.Add(series); series.DataSource = table; series.ValueDataMembers.AddRange(new string[] { "Price" }); series.ArgumentScaleType = ScaleType.Qualitative; series.ArgumentDataMember = "ItemCode"; series.ValueScaleType = ScaleType.Numerical; ((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true; }
 
 
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