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DataBind Streak Data to the DevExpress Data Grid



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

The ADO.NET Provider for Streak 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.

Use the following steps to generate a new API key for authenticating to Streak.

  1. Navigate to Gmail
  2. Click on the Streak dropdown to the right of the search bar
  3. Select the Integrations button. This will open a window where you can view existing integrations and create new API keys.
  4. Under the Streak API section of integrations, click the button to Create New Key.

Windows Forms Controls

The code below shows how to populate a DevExpress chart with Streak data. The StreakDataAdapter 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 (StreakConnection connection = new StreakConnection( "ApiKey=8c84j9b4j54762ce809ej6a782d776j3;")) { StreakDataAdapter dataAdapter = new StreakDataAdapter( "SELECT UserKey, Email FROM Users WHERE Email = 'user@domain.com'", 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[] { "Email" }); series.ArgumentScaleType = DevExpress.XtraCharts.ScaleType.Qualitative; series.ArgumentDataMember = "UserKey"; 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 Streak data. The StreakDataAdapter 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 (StreakConnection connection = new StreakConnection( "ApiKey=8c84j9b4j54762ce809ej6a782d776j3;")) { StreakDataAdapter StreakDataAdapter1 = new StreakDataAdapter("SELECT UserKey, Email FROM Users WHERE Email = 'user@domain.com'", connection); DataTable table = new DataTable(); StreakDataAdapter1.Fill(table); DevExpress.XtraCharts.Series series = new Series("Series1", ViewType.Bar); WebChartControl1.Series.Add(series); series.DataSource = table; series.ValueDataMembers.AddRange(new string[] { "Email" }); series.ArgumentScaleType = ScaleType.Qualitative; series.ArgumentDataMember = "UserKey"; series.ValueScaleType = ScaleType.Numerical; ((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true; }