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DataBind MongoDB Data to the DevExpress Data Grid

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

The CData ADO.NET Provider for MongoDB 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.

MongoDB への接続には、Server、Database、User、Password プロパティを設定します。MongoDB コレクションにテーブルとしてアクセスするには、自動スキーマ検出を使用することができます。もちろんスキーマ定義の.rsd ファイルを編集して自分でスキーマ定義を書くことも可能です。スキーマに縛られないフリーフォーマットクエリを投げることもできます。

Windows Forms Controls

The code below shows how to populate a DevExpress chart with MongoDB data. The MongoDBDataAdapter 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 (MongoDBConnection connection = new MongoDBConnection( "Server=MyServer;Port=27017;Database=test;User=test;Password=Password;")) { MongoDBDataAdapter dataAdapter = new MongoDBDataAdapter( "SELECT borough, cuisine FROM restaurants", 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[] { "cuisine" }); series.ArgumentScaleType = DevExpress.XtraCharts.ScaleType.Qualitative; series.ArgumentDataMember = "borough"; 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 MongoDB data. The MongoDBDataAdapter 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 (MongoDBConnection connection = new MongoDBConnection( "Server=MyServer;Port=27017;Database=test;User=test;Password=Password;")) { MongoDBDataAdapter MongoDBDataAdapter1 = new MongoDBDataAdapter("SELECT borough, cuisine FROM restaurants", connection); DataTable table = new DataTable(); MongoDBDataAdapter1.Fill(table); DevExpress.XtraCharts.Series series = new Series("Series1", ViewType.Bar); WebChartControl1.Series.Add(series); series.DataSource = table; series.ValueDataMembers.AddRange(new string[] { "cuisine" }); series.ArgumentScaleType = ScaleType.Qualitative; series.ArgumentDataMember = "borough"; series.ValueScaleType = ScaleType.Numerical; ((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true; }
 
 
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