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The CData API Driver for ADO.NET 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.
Start by setting the Profile connection property to the location of the Guru Profile on disk (e.g. C:\profiles\Guru.apip). Next, set the ProfileSettings connection property to the connection string for Guru (see below).
In Guru, navigate to Settings > API and click Create New API Token. Use your email address as the User and the generated token as the Password.
The code below shows how to populate a DevExpress chart with Guru data. The APIDataAdapter 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 (APIConnection connection = new APIConnection(
"Profile=C:\profiles\Guru.apip;ProfileSettings='User=your_email;Password=your_api_token';")) {
APIDataAdapter dataAdapter = new APIDataAdapter(
"SELECT User, Type FROM Analytics WHERE TeamId = 'team-12345'", 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[] { "Type" });
series.ArgumentScaleType = DevExpress.XtraCharts.ScaleType.Qualitative;
series.ArgumentDataMember = "User";
series.ValueScaleType = DevExpress.XtraCharts.ScaleType.Numerical;
chartControl1.Legend.Visibility = DevExpress.Utils.DefaultBoolean.False;
((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true;
}
👁 The complete code example and the resulting chart.The code below shows how to populate a DevExpress Web control with Guru data. The APIDataAdapter 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 (APIConnection connection = new APIConnection(
"Profile=C:\profiles\Guru.apip;ProfileSettings='User=your_email;Password=your_api_token';"))
{
APIDataAdapter APIDataAdapter1 = new APIDataAdapter("SELECT User, Type FROM Analytics WHERE TeamId = 'team-12345'", connection);
DataTable table = new DataTable();
APIDataAdapter1.Fill(table);
DevExpress.XtraCharts.Series series = new Series("Series1", ViewType.Bar);
WebChartControl1.Series.Add(series);
series.DataSource = table;
series.ValueDataMembers.AddRange(new string[] { "Type" });
series.ArgumentScaleType = ScaleType.Qualitative;
series.ArgumentDataMember = "User";
series.ValueScaleType = ScaleType.Numerical;
((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true;
}
👁 An ASP.NET application created with the ADO.NET Provider and the DevExpress Web Forms control. (Salesforce is shown.)Connect to live data from Guru with the API Driver
Connect to Guru