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The CData ADO.NET Provider for Phoenix is fully integrated into the SAP Crystal Reports for Visual Studio development environment. You can employ standard ADO.NET components to construct reports, much like you would with SQL Server, but with the added advantage of real-time connectivity to Phoenix. This article will guide you through the essential three steps to incorporate Phoenix data into a report that refreshes upon opening.
Note: You will need to install SAP Crystal Reports, developer version for Visual Studio to follow this tutorial.
To follow this article, you will also need a Visual Studio Crystal Reports project. This article will add a report to a WPF application. You can create one by clicking File -> New Project and then selecting the Crystal Reports WPF Application template. In the resulting wizard, select the option to create a blank report.
Creating an ADO.NET data source for Phoenix from Server Explorer makes it easy to create a DataSet that can be used in Crystal Reports wizards and the Crystal Reports Designer. You can find a guide to working with Phoenix data in Server Explorer in the "Getting Started" chapter of the help documentation.
Connect to Apache Phoenix via the Phoenix Query Server. Set the Server and Port (if different from the default port) properties to connect to Apache Phoenix. The Server property will typically be the host name or IP address of the server hosting Apache Phoenix.
By default, no authentication will be used (plain). If authentication is configured for your server, set AuthScheme to NEGOTIATE and set the User and Password properties (if necessary) to authenticate through Kerberos.
When you configure the connection, you may also want to set the Max Rows connection property. This will limit the number of rows returned, which is especially helpful for improving performance when designing reports and visualizations.
Follow the steps below to use the Visual Studio ADO.NET DataSet Designer to create an ADO.NET DataSet object. Crystal Reports will bind to the DataSet object, which contains Phoenix table metadata. Note that this approach also adds a connection string to App.config; you will use this connection string later to load data into the report.
Follow the steps below to add columns from the DataSet to the report:
Having created the DataSet, which will only contain the metadata, you will now need to create the DataTable containing the actual data. You can use the ApachePhoenixDataAdapter to fill a DataTable with the results of an SQL query.
<startup useLegacyV2RuntimeActivationPolicy="true"> <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/> </startup>
Add the following references in your Window.xaml.cs file:
using System.Configuration; using CrystalDecisions.CrystalReports.Engine; using CrystalDecisions.Shared; using System.Data.CData.ApachePhoenix; using System.Data;
Add the following Window_Loaded method in your Window.xaml.cs to execute the SQL query that will return the DataTable. Note that your query needs to select at least the same columns used in your report.
private void Window_Loaded(object sender, RoutedEventArgs e) {
ReportDocument report = new ReportDocument();
report.Load("../../CrystalReport1.rpt");
var connectionString = ConfigurationManager.ConnectionStrings["MyAppConfigConnectionStringName"].ConnectionString;
using (ApachePhoenixConnection connection = new ApachePhoenixConnection(connectionString)) {
ApachePhoenixDataAdapter dataAdapter = new ApachePhoenixDataAdapter(
"SELECT Id, Column1 FROM MyTable WHERE Id = '123456'", connection);
DataSet set = new DataSet("_set");
DataTable table = set.Tables.Add("_table");
dataAdapter.Fill(table);
report.SetDataSource(table);
}
reportViewer.ViewerCore.ReportSource = report;
}
In the Window.xaml file, add the Loaded event so that your Window tag resembles the following:
<Window x:Class="CrystalReportWpfApplication4.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:cr="clr-namespace:SAPBusinessObjects.WPF.Viewer;assembly=SAPBusinessObjects.WPF.Viewer" Title="WPF Crystal Report Viewer" Height="600" Width="800" Loaded="Window_Loaded"> ... </Window>
You can also use the DataSet with experts like the Chart Expert:
Note that Crystal Reports performs the aggregation on the data already loaded into DataTable, instead of, for example, executing a GROUP BY to the Phoenix API. This will also be true for the report creation wizards.
You could gain more control over the queries executed to Phoenix by creating another DataSet and populating it with a different query. See the help documentation for more information on the driver's SQL engine.
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