DataBinding

14 Feb 201912 minutes to read

Binding PivotChart to Offline Cube

To connect an OLAP Cube available in local machine, set the physical path of the Cube in the connection string. The following code example illustrates the same.

C#

string connectionString = @"DataSource = system drive:\OfflineCube\Adventure_Works_Ext.cub; Provider = MSOLAP;";
OlapDataManager DataManager = new OlapDataManager(connectionString);

Binding PivotChart to Cube in local SQL Server

To connect an OLAP Cube available in SQL Server Analysis Service in local machine, set the server name and database name in the connection string. When you have any credentials to connect your Cube, then set the “User ID” and “Password” attributes accordingly. The following code example illustrates the same.

C#

string connectionString = "Data source=localhost; Initial Catalog=Adventure Works DW;";
OlapDataManager DataManager = new OlapDataManager(connectionString);

Binding PivotChart to Cube in online SQL Server

To connect an OLAP Cube available in SQL Server Analysis Service in online server through XML/A, set the host server link and database name in the connection string. When you have any credentials to connect your Cube, then set the “User ID” and “Password” attributes accordingly. The following code example illustrates the same.

C#

string connectionString = "Data Source=https://bi.syncfusion.com/olap/msmdpump.dll; Initial Catalog=Adventure Works DW 2008 SE;";
OlapDataManager DataManager = new OlapDataManager(connectionString);

Binding PivotChart to Cube in online Mondrian Server

To connect an OLAP Cube available in Mondrian Server through XML/A, set the host server link and database name in the connection string. When you have any credentials to connect your Cube, then set the “User ID” and “Password” attributes accordingly. The following code example illustrates the same.

C#

string connectionString = @"Data Source = https://localhost:8080/mondrian/xmla; Initial Catalog =FoodMart;";
OlapDataManager DataManager = new OlapDataManager(connectionString);
DataManager.DataProvider.ProviderName = Syncfusion.Olap.DataProvider.Providers.Mondrian;

Binding PivotChart to Cube in online ActivePivot Server

To connect an OLAP Cube available in ActivePivot Server through XML/A, set the host server link and database name in the connection string. When you have any credentials to connect your Cube, then set the “User ID” and “Password” attributes accordingly. The following code example illustrates the same.

C#

string connectionString = @"Data Source = https://localhost:8080/cva_s/xmla; Initial Catalog = CVAS;";
OlapDataManager DataManager = new OlapDataManager(connectionString);
DataManager.DataProvider.ProviderName=Syncfusion.Olap.DataProvider.Providers.ActivePivot;

WCF

Adding a WCF Service

To add a WCF service in an existing web application, right-click on the project in Solution Explorer and select Add > New Item. In the Add New Item window, select WCF Service and name it as “OlapService.svc”, click Add.

Now WCF service is added into your application successfully which in-turn comprise of the following files. The utilization of these files will be explained in the immediate sections.

• OlapService.svc
• OlapService.svc.cs
• IOlapService.cs

Configuring WCF Service Class

Remove the “DoWork” method present inside both OlapService.svc.cs and IOlapService.cs files. Next, add “AspNetCompatibilityRequirements” attribute on top of main class present inside OlapService.svc.cs and set “RequirementsMode” value to “Allowed”.

C#

namespace PivotChartDemo
{
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class OlapService : IOlapService
    {

    }
}

List of Dependency Libraries

Next you need to add the below mentioned dependency libraries into your Web Application. These libraries could be found in GAC (Global Assembly Cache) as well.

To add them to your Web Application, right-click on References in Solution Explorer and select Add Reference. Now in the Reference Manager dialog, under Assemblies > Extension, the following Syncfusion libraries are found.

NOTE

If you have installed any version of SQL Server Analysis Service (SSAS) or Microsoft ADOMD.NET utility, then the location of Microsoft.AnalysisServices.AdomdClient library is [system drive:\Program Files (x86)\Microsoft.NET\ADOMD.NET]. And if you have installed any version of Essential Studio, then the location of Syncfusion libraries is [system drive:\Program Files (x86)\Syncfusion\Essential Studio\24.2.3\Assemblies].

• Microsoft.AnalysisServices.AdomdClient
• Syncfusion.Compression.Base
• Syncfusion.Linq.Base
• Syncfusion.Olap.Base
• Syncfusion.PivotAnalysis.Base
• Syncfusion.XlsIO.Base
• Syncfusion.Pdf.Base
• Syncfusion.DocIO.Base
• Syncfusion.EJ
• Syncfusion.EJ.Export
• Syncfusion.EJ.Pivot
• Syncfusion.EJ.MVC

List of Namespaces

Following are the list of namespaces to be added on top of the main class inside OlapService.svc.cs file.

C#

using System.ServiceModel.Activation;
using Syncfusion.Olap.Manager;
using Syncfusion.Olap.Reports;
using Syncfusion.JavaScript;
using System.Collections.Generic;

namespace PivotChartDemo
{
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class OlapService : IOlapService
    {

    }
}

Datasource Initialization

Now the connection string to connect OLAP Cube and PivotChart instances are created immediately inside the main class in OlapService.svc.cs file.

C#

namespace PivotChartDemo
{
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class OlapService : IOlapService
    {
        PivotChart pivotChart = new PivotChart();
        string connectionString = "Data Source=https://bi.syncfusion.com/olap/msmdpump.dll; Initial Catalog=Adventure Works DW 2008 SE;";
        //Other codes

    }
}

Service methods in WCF Service

First, you need to define the service methods inside IOlapService interface, found in IOlapService.cs file, created while adding WCF Service to your Web Application.

C#

namespace PivotChartDemo
{
    [ServiceContract]
    public interface IOlapService
    {
        [OperationContract]
        Dictionary<string, object> InitializeChart(string action, string customObject);
        [OperationContract]
        Dictionary<string, object> DrillChart(string action, string drilledSeries, string olapReport, string customObject);
    }
}

Secondly, you need to elaborate the service methods inside the main class, found in OlapService.svc.cs file

C#

namespace PivotChartDemo
{
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class OlapService : IOlapService
    {
        PivotChart pivotChart = new PivotChart();
        string connectionString = "Data Source=https://bi.syncfusion.com/olap/msmdpump.dll; Initial Catalog=Adventure Works DW 2008 SE;";

        public Dictionary<string, object> InitializeChart(string action, string customObject)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            DataManager.SetCurrentReport(CreateOlapReport());
            return pivotChart.GetJsonData(action, DataManager);
        }

        public Dictionary<string, object> DrillChart(string action, string drilledSeries, string olapReport, string customObject)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            DataManager.SetCurrentReport(Syncfusion.JavaScript.Olap.Utils.DeserializeOlapReport(olapReport));
            return pivotChart.GetJsonData(action, DataManager, drilledSeries);
        }

        private OlapReport CreateOlapReport()
        {
            OlapReport olapReport = new OlapReport();
            olapReport.Name = "Default Report";
            olapReport.CurrentCubeName = "Adventure Works";

            DimensionElement dimensionElementColumn = new DimensionElement();
            //Specifying the Name for the Dimension Element
            dimensionElementColumn.Name = "Customer";
            dimensionElementColumn.AddLevel("Customer Geography", "Country");

            MeasureElements measureElementColumn = new MeasureElements();
            //Specifying the Name for the Measure Element
            measureElementColumn.Elements.Add(new MeasureElement { Name = "Customer Count" });

            DimensionElement dimensionElementRow = new DimensionElement();
            //Specifying the Dimension Name
            dimensionElementRow.Name = "Date";
            dimensionElementRow.AddLevel("Fiscal", "Fiscal Year");

            ///Adding Row Members
            olapReport.SeriesElements.Add(dimensionElementRow);
            ///Adding Column Members
            olapReport.CategoricalElements.Add(dimensionElementColumn);
            ///Adding Measure Element
            olapReport.CategoricalElements.Add(measureElementColumn);
            return olapReport;
        }
    }
}

Configuring Web Configuration File

You can expose services through the properties such as binding, contract and address by using an endpoint.

• Contract: This property indicates that the contract of the endpoint is exposing. Here you are referring to IOlapService contract and hence it is PivotChartDemo.IOlapService.
• Binding: In your application, you use webHttpBinding to post and receive the requests and responses between the client-end and the service.
• behaviorConfiguration: This property contains the name of the behavior to be used in the endpoint.

The endpointBehaviors are illustrated as follows.

XAML

<system.serviceModel>
    ……
    ……
    <services>
        <service name="PivotChartDemo.OlapService">
            <endpoint address="" behaviorConfiguration="PivotChartDemo.OlapServiceAspNetAjaxBehavior" binding="webHttpBinding" contract="PivotChartDemo.IOlapService" />
        </service>
    </services>
</system.serviceModel>

The endpointBehaviors contain all the behaviors for an endpoint. You can link each endpoint to the respective behavior only by using this name property.

XAML

<system.serviceModel>
    <behaviors>
        <endpointBehaviors>
            <behavior name="PivotChartDemo.OlapServiceAspNetAjaxBehavior">
                <enableWebScript />
            </behavior>
        </endpointBehaviors>
    </behaviors>
    ……
    ……
</system.serviceModel>

Configuring routing file

Routing configuration needs to be done in RouteConfig.cs file found under AppStart folder. The configuration would allow picking appropriate WCF service without any issues.

C#

public static void RegisterRoutes(RouteCollection routes) {
    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
    routes.IgnoreRoute("{resource}.svc/{*pathInfo}");
    routes.IgnoreRoute("{resource}.svc");
    routes.MapRoute(
        name: "Default",
        url: "{controller}/{action}/{id}",
        defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
    );
}

NOTE

In this example, “PivotChartDemo” indicates the name and root namespace of the Web Application created in Visual Studio IDE and “OlapService” indicates the name of the WCF service created.
Now, PivotChart is rendered with Customer Count over a period of fiscal years across different customer geographic locations.