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Get the Report →DataBind Hive Data to the DevExpress Data Grid
Use the CData ADO.NET Provider for Hive with the DevExpress Windows Forms and Web controls to provide Hive data to a chart.
The ADO.NET Provider for Hive 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.
Set the Server, Port, TransportMode, and AuthScheme connection properties to connect to Hive.Windows Forms Controls
The code below shows how to populate a DevExpress chart with Hive data. The ApacheHiveDataAdapter 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 (ApacheHiveConnection connection = new ApacheHiveConnection(
"Server=127.0.0.1;Port=10000;TransportMode=BINARY;")) {
ApacheHiveDataAdapter dataAdapter = new ApacheHiveDataAdapter(
"SELECT City, CompanyName FROM Customers", 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[] { "CompanyName" });
series.ArgumentScaleType = DevExpress.XtraCharts.ScaleType.Qualitative;
series.ArgumentDataMember = "City";
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 Hive data. The ApacheHiveDataAdapter 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 (ApacheHiveConnection connection = new ApacheHiveConnection(
"Server=127.0.0.1;Port=10000;TransportMode=BINARY;"))
{
ApacheHiveDataAdapter ApacheHiveDataAdapter1 = new ApacheHiveDataAdapter("SELECT City, CompanyName FROM Customers", connection);
DataTable table = new DataTable();
ApacheHiveDataAdapter1.Fill(table);
DevExpress.XtraCharts.Series series = new Series("Series1", ViewType.Bar);
WebChartControl1.Series.Add(series);
series.DataSource = table;
series.ValueDataMembers.AddRange(new string[] { "CompanyName" });
series.ArgumentScaleType = ScaleType.Qualitative;
series.ArgumentDataMember = "City";
series.ValueScaleType = ScaleType.Numerical;
((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true;
}