DataBind Oracle HCM Cloud Data to the DevExpress Data Grid

The ADO.NET Provider for Oracle HCM Cloud 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.

Using Basic Authentication

You must set the following to authenticate to Oracle HCM Cloud:

• Url: The Url of your account.
• User: The user of your account.
• Password: The password of your account.

Windows Forms Controls

The code below shows how to populate a DevExpress chart with Oracle HCM Cloud data. The OracleHCMDataAdapter 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 (OracleHCMConnection connection = new OracleHCMConnection(
"Url=https://abc.oraclecloud.com;User=user;Password=password;")) {
 OracleHCMDataAdapter dataAdapter = new OracleHCMDataAdapter(
 "SELECT SiteId, SiteName FROM RecruitingCESites WHERE Language = 'English'", 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[] { "SiteName" });
 series.ArgumentScaleType = DevExpress.XtraCharts.ScaleType.Qualitative;
 series.ArgumentDataMember = "SiteId";
 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 Oracle HCM Cloud data. The OracleHCMDataAdapter 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 (OracleHCMConnection connection = new OracleHCMConnection(
"Url=https://abc.oraclecloud.com;User=user;Password=password;"))
{
 OracleHCMDataAdapter OracleHCMDataAdapter1 = new OracleHCMDataAdapter("SELECT SiteId, SiteName FROM RecruitingCESites WHERE Language = 'English'", connection);
 DataTable table = new DataTable();
 OracleHCMDataAdapter1.Fill(table);
 DevExpress.XtraCharts.Series series = new Series("Series1", ViewType.Bar);
 WebChartControl1.Series.Add(series);
 series.DataSource = table;
 series.ValueDataMembers.AddRange(new string[] { "SiteName" });
 series.ArgumentScaleType = ScaleType.Qualitative;
 series.ArgumentDataMember = "SiteId";
 series.ValueScaleType = ScaleType.Numerical;
 ((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true;
}