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DataBind Facebook Data to the DevExpress Data Grid

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

The CData ADO.NET Provider for Facebook 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.

Facebook はユーザー認証にOAuth 標準を使用しています。 ユーザー資格情報の接続プロパティを設定せずに接続できます。 接続すると、本製品 はデフォルトブラウザでFacebook OAuth エンドポイントを開きます。ログインして、本製品 にアクセス許可を与えます。本製品 がOAuth プロセスを完了します。 他のOAuth 認証フローについては、OAuth 認証の使用 を参照してください。

Windows Forms Controls

The code below shows how to populate a DevExpress chart with Facebook data. The FacebookDataAdapter 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 (FacebookConnection connection = new FacebookConnection( "")) { FacebookDataAdapter dataAdapter = new FacebookDataAdapter( "SELECT FromName, LikesCount FROM Posts", 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[] { "LikesCount" }); series.ArgumentScaleType = DevExpress.XtraCharts.ScaleType.Qualitative; series.ArgumentDataMember = "FromName"; 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 Facebook data. The FacebookDataAdapter 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 (FacebookConnection connection = new FacebookConnection( "")) { FacebookDataAdapter FacebookDataAdapter1 = new FacebookDataAdapter("SELECT FromName, LikesCount FROM Posts", connection); DataTable table = new DataTable(); FacebookDataAdapter1.Fill(table); DevExpress.XtraCharts.Series series = new Series("Series1", ViewType.Bar); WebChartControl1.Series.Add(series); series.DataSource = table; series.ValueDataMembers.AddRange(new string[] { "LikesCount" }); series.ArgumentScaleType = ScaleType.Qualitative; series.ArgumentDataMember = "FromName"; series.ValueScaleType = ScaleType.Numerical; ((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true; }
 
 
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