DataBinding

12 Jul 201824 minutes to read

Binding PivotClient 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 PivotClient 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 PivotClient 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=http://bi.syncfusion.com/olap/msmdpump.dll; Initial Catalog=Adventure Works DW 2008 SE;"; 
OlapDataManager DataManager = new OlapDataManager(connectionString);

Binding PivotClient 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 = http://localhost:8080/mondrian/xmla; Initial Catalog =FoodMart;";
OlapDataManager DataManager = new OlapDataManager(connectionString);
DataManager.DataProvider.ProviderName = Syncfusion.Olap.DataProvider.Providers.Mondrian;

Binding PivotClient 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 = http://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 PivotClientDemo
{
    [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]

• Microsoft.AnalysisServices.AdomdClient
• Syncfusion.Compression.Base
• Syncfusion.Linq.Base
• Syncfusion.Olap.Base
• Syncfusion.PivotAnalysis.Base
• System.Data.SqlServerCe (Version: 4.0.0.0)
• Syncfusion.XlsIO.Base
• Syncfusion.Pdf.Base
• Syncfusion.DocIO.Base
• Syncfusion.EJ
• Syncfusion.EJ.Export
• Syncfusion.EJ.Pivot

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 Syncfusion.JavaScript;
using Syncfusion.Olap.Manager;
using Syncfusion.Olap.Reports;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.ServiceModel.Activation;
using System.Data.SqlServerCe;
using System.IO;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Http;
using System.Web.Script.Serialization;
using OLAPUTILS = Syncfusion.JavaScript.Olap;

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

    }
}

Datasource Initialization

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

C#

namespace PivotClientDemo
{
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class OlapService : IOlapService
    {
        PivotClient pivotClientHelper = new PivotClient();
        PivotTreeMap treemapHelper = new PivotTreeMap();
        PivotChart chartHelper = new PivotChart();
        JavaScriptSerializer serializer = new JavaScriptSerializer();
        string connectionString = "Data Source=http://bi.syncfusion.com/olap/msmdpump.dll; Initial Catalog=Adventure Works DW 2008 SE;";
        string conStringforDB = "";//Enter appropriate connection string to connect database for saving and loading operation of reports
        //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 PivotClientDemo
{
    [ServiceContract]
    public interface IOlapService
    {
        [OperationContract]
        Dictionary<string, object> InitializeClient(string action, string customObject, string clientParams);
        [OperationContract]
        Dictionary<string, object> FetchMemberTreeNodes(string action, string dimensionName, string olapReport);
        [OperationContract]
        Dictionary<string, object> InitializeChart(string action, string currentReport, string customObject);
        [OperationContract]
        Dictionary<string, object> InitializeTreeMap(string action, string currentReport, string customObject);
        [OperationContract]
        Dictionary<string, object> DrillChart(string action, string drilledSeries, string olapReport, string clientReports);
        [OperationContract]
        Dictionary<string, object> DrillTreeMap(string action, string drillInfo, string olapReport, string clientReports);
        [OperationContract]
        Dictionary<string, object> InitializeGrid(string action, string currentReport, string gridLayout, string customObject);
        [OperationContract]
        Dictionary<string, object> DrillGrid(string action, string cellPosition, string currentReport, string clientReports, string headerInfo, string layout);
        [OperationContract]
        Dictionary<string, object> FilterElement(string action, string clientParams, string olapReport, string clientReports);
        [OperationContract]
        Dictionary<string, object> RemoveSplitButton(string action, string clientParams, string olapReport, string clientReports);
        [OperationContract]
        Dictionary<string, object> NodeDropped(string action, string dropType, string nodeInfo, string olapReport, string clientReports);
        [OperationContract]
        Dictionary<string, object> CubeChanged(string action, string cubeName, string clientParams);
        [OperationContract]
        Dictionary<string, object> MeasureGroupChanged(string action, string measureGroupName);
        [OperationContract]
        Dictionary<string, object> ToolbarOperations(string action, string toolbarOperation, string clientInfo, string olapReport, string clientReports);
        [OperationContract]
        Dictionary<string, object> UpdateReport(string action, string clientParams, string olapReport, string clientReports);
        [OperationContract]
        Dictionary<string, object> SaveReportToDB(string reportName, string operationalMode, string analysisMode, string olapReport, string clientReports);
        [OperationContract]
        Dictionary<string, object> RemoveReportFromDB(string reportName, string operationalMode, string analysisMode);
        [OperationContract]
        Dictionary<string, object> RenameReportInDB(string selectedReport, string renameReport, string operationalMode, string analysisMode);
        [OperationContract]
        Dictionary<string, object> LoadReportFromDB(string reportName, string operationalMode, string analysisMode, string olapReport, string clientReports);
        [OperationContract]
        Dictionary<string, object> FetchReportListFromDB(string action, string operationalMode, string analysisMode);
        [OperationContract]
        Dictionary<string, object> MemberExpanded(string action, bool checkedStatus, string parentNode, string tag, string dimensionName, string cubeName, string olapReport, string clientReports);
        [OperationContract]
        void Export(System.IO.Stream stream);
        [OperationContract]
        string GetMDXQuery(string olapReport);
        [OperationContract]
        Dictionary<string, object> ToggleAxis(string action, string currentReport, string clientReports);
    }
}

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

C#

namespace PivotClientDemo
{
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class OlapService : IOlapService
    {
        PivotClient pivotClientHelper = new PivotClient();
        PivotTreeMap treemapHelper = new PivotTreeMap();
        PivotChart chartHelper = new PivotChart();
        JavaScriptSerializer serializer = new JavaScriptSerializer();
        string connectionString = "Data Source=http://bi.syncfusion.com/olap/msmdpump.dll; Initial Catalog=Adventure Works DW 2008 SE;";
        string conStringforDB = "";//Enter appropriate connection string to connect database for saving and loading operation of reports       
        
        public Dictionary<string, object> InitializeClient(string action, string customObject, string clientParams)
        {
            OlapDataManager DataManager = null;
            DataManager = new OlapDataManager(connectionString);
            DataManager.SetCurrentReport(CreateOlapReport());
            return pivotClientHelper.GetJsonData(action, DataManager, clientParams);
        }

        public Dictionary<string, object> InitializeGrid(string action, string currentReport, string gridLayout, string customObject)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            DataManager.SetCurrentReport(OLAPUTILS.Utils.DeserializeOlapReport(currentReport));
            return pivotClientHelper.GetJsonData(action, DataManager, gridLayout);
        }

        public Dictionary<string, object> InitializeChart(string action, string currentReport, string customObject)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            DataManager.SetCurrentReport(OLAPUTILS.Utils.DeserializeOlapReport(currentReport));
            return chartHelper.GetJsonData(action, DataManager);
        }

        public Dictionary<string, object> InitializeTreeMap(string action, string currentReport, string customObject)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            DataManager.SetCurrentReport(OLAPUTILS.Utils.DeserializeOlapReport(currentReport));
            return treemapHelper.GetJsonData(action, DataManager);
        }

        public Dictionary<string, object> DrillChart(string action, string drilledSeries, string olapReport, string clientReports)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            DataManager.SetCurrentReport(OLAPUTILS.Utils.DeserializeOlapReport(olapReport));
            DataManager.Reports = pivotClientHelper.DeserializedReports(clientReports);
            return chartHelper.GetJsonData(action, DataManager, drilledSeries);
        }

        public Dictionary<string, object> DrillTreeMap(string action, string drillInfo, string olapReport, string clientReports)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            DataManager.SetCurrentReport(OLAPUTILS.Utils.DeserializeOlapReport(olapReport));
            DataManager.Reports = pivotClientHelper.DeserializedReports(clientReports);
            return treemapHelper.GetJsonData(action, DataManager, drillInfo);
        }

        public Dictionary<string, object> FilterElement(string action, string clientParams, string olapReport, string clientReports)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            DataManager.SetCurrentReport(OLAPUTILS.Utils.DeserializeOlapReport(olapReport));
            DataManager.Reports = pivotClientHelper.DeserializedReports(clientReports);
            return pivotClientHelper.GetJsonData(action, DataManager, clientParams);
        }

        public Dictionary<string, object> RemoveSplitButton(string action, string clientParams, string olapReport, string clientReports)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            DataManager.SetCurrentReport(OLAPUTILS.Utils.DeserializeOlapReport(olapReport));
            DataManager.Reports = pivotClientHelper.DeserializedReports(clientReports);
            return pivotClientHelper.GetJsonData(action, DataManager, clientParams);
        }

        public Dictionary<string, object> FetchMemberTreeNodes(string action, string dimensionName, string olapReport)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            DataManager.SetCurrentReport(OLAPUTILS.Utils.DeserializeOlapReport(olapReport));
            return pivotClientHelper.GetJsonData(action, DataManager, dimensionName);
        }

        public Dictionary<string, object> DrillGrid(string action, string cellPosition, string currentReport,string clientReports, string headerInfo, string layout)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);    
            DataManager.SetCurrentReport(OLAPUTILS.Utils.DeserializeOlapReport(currentReport));
            DataManager.Reports = pivotClientHelper.DeserializedReports(clientReports);
            return pivotClientHelper.GetJsonData(action, DataManager, cellPosition, headerInfo, layout);
        }

        public Dictionary<string, object> NodeDropped(string action, string dropType, string nodeInfo, string olapReport, string clientReports)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            DataManager.SetCurrentReport(OLAPUTILS.Utils.DeserializeOlapReport(olapReport));
            DataManager.Reports = pivotClientHelper.DeserializedReports(clientReports);
            return pivotClientHelper.GetJsonData(action, DataManager, dropType, nodeInfo);
        }

        public Dictionary<string, object> CubeChanged(string action, string cubeName, string clientParams)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            return pivotClientHelper.GetJsonData(action, DataManager, cubeName, clientParams);
        }

        public Dictionary<string, object> MeasureGroupChanged(string action, string measureGroupName)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            return pivotClientHelper.GetJsonData(action, DataManager, measureGroupName);
        }

        public Dictionary<string, object> ToolbarOperations(string action, string toolbarOperation, string clientInfo, string olapReport, string clientReports)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            if (!string.IsNullOrEmpty(olapReport))
                DataManager.SetCurrentReport(OLAPUTILS.Utils.DeserializeOlapReport(olapReport));
            if (!string.IsNullOrEmpty(clientReports))
                DataManager.Reports = pivotClientHelper.DeserializedReports(clientReports);
            return pivotClientHelper.GetJsonData(action, DataManager, toolbarOperation, clientInfo);
        }
        public Dictionary<string, object> MemberExpanded(string action, bool checkedStatus, string parentNode, string tag, string dimensionName, string cubeName, string olapReport, string clientReports)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            if (!string.IsNullOrEmpty(olapReport))
                DataManager.SetCurrentReport(OLAPUTILS.Utils.DeserializeOlapReport(olapReport));
            if (!string.IsNullOrEmpty(clientReports))
                DataManager.Reports = pivotClientHelper.DeserializedReports(clientReports);
            return pivotClientHelper.GetJsonData(action, DataManager, checkedStatus, parentNode, tag, dimensionName, cubeName);
        }

        public Dictionary<string, object> UpdateReport(string action, string clientParams, string olapReport, string clientReports)
        {
            return pivotClientHelper.GetJsonData(action, clientParams, olapReport, clientReports);
        }

        public Dictionary<string, object> SaveReportToDB(string reportName, string operationalMode, string analysisMode, string olapReport, string clientReports)
        {
            reportName = reportName + "##" + operationalMode.ToLower() + "#>>#" + analysisMode.ToLower();
            SqlCeConnection con = new SqlCeConnection() { ConnectionString = conStringforDB };
            con.Open();
            SqlCeCommand cmd1 = new SqlCeCommand("insert into ReportsTable Values(@ReportName,@Reports)", con);
            cmd1.Parameters.Add("@ReportName", reportName);
            if (operationalMode.ToLower() == "servermode" && analysisMode == "olap")
                cmd1.Parameters.Add("@Reports", OLAPUTILS.Utils.GetReportStream(clientReports).ToArray());
            else
                cmd1.Parameters.Add("@Reports", Encoding.UTF8.GetBytes(clientReports).ToArray());
            cmd1.ExecuteNonQuery();
            con.Close();
            return null;
        }

        public Dictionary<string, object> RemoveReportFromDB(string reportName, string operationalMode, string analysisMode)
        {
            SqlCeConnection con = new SqlCeConnection() { ConnectionString = conStringforDB };
            con.Open();
            reportName = reportName + "##" + operationalMode.ToLower() + "#>>#" + analysisMode.ToLower();
            SqlCeCommand cmd1 = null;
            foreach (DataRow row in GetDataTable().Rows)
            {
                if ((row.ItemArray[0] as string).Equals(reportName))
                {
                    cmd1 = new SqlCeCommand("DELETE FROM ReportsTable WHERE ReportName LIKE '%" + reportName + "%'", con);
                }
            }
            cmd1.ExecuteNonQuery();
            con.Close();
            return null;
        }

        public Dictionary<string, object> RenameReportInDB(string selectedReport, string renameReport, string operationalMode, string analysisMode)
        {
            SqlCeConnection con = new SqlCeConnection() { ConnectionString = conStringforDB };
            con.Open();
            selectedReport = selectedReport + "##" + operationalMode.ToLower() + "#>>#" + analysisMode.ToLower();
            renameReport = renameReport + "##" + operationalMode.ToLower() + "#>>#" + analysisMode.ToLower();
            SqlCeCommand cmd1 = null;
            foreach (DataRow row in GetDataTable().Rows)
            {
                if ((row.ItemArray[0] as string).Equals(selectedReport))
                {
                    cmd1 = new SqlCeCommand("update ReportsTable set ReportName=@RenameReport where ReportName like '%" + selectedReport + "%'", con);
                }
            }
            cmd1.Parameters.Add("@RenameReport", renameReport);
            cmd1.ExecuteNonQuery();
            con.Close();
            return null;
        }

        public Dictionary<string, object> FetchReportListFromDB(string action, string operationalMode, string analysisMode)
        {
            string reportNames = string.Empty;
            string currentRptName = string.Empty;
            foreach (System.Data.DataRow row in GetDataTable().Rows)
            {
                currentRptName = (row.ItemArray[0] as string);
                if (currentRptName.IndexOf("##" + operationalMode + "#>>#" + analysisMode) >= 0)
                {
                    currentRptName = currentRptName.Replace("##" + operationalMode + "#>>#" + analysisMode, "");
                    reportNames = reportNames == "" ? currentRptName : reportNames + "__" + currentRptName;
                }
            }
            Dictionary<string, object> dictionary = new Dictionary<string, object>();
            dictionary.Add("ReportNameList", reportNames);
            dictionary.Add("action", action);
            return dictionary;
        }

        public Dictionary<string, object> LoadReportFromDB(string reportName,string operationalMode,string analysisMode, string olapReport, string clientReports)
        {
            
            PivotReport report = new PivotReport();
            Dictionary<string, object> dictionary = new Dictionary<string, object>();
            string currentRptName = string.Empty;
            foreach (DataRow row in GetDataTable().Rows)
            {
                currentRptName=(row.ItemArray[0] as string).Replace("##" + operationalMode.ToLower() + "#>>#" + analysisMode.ToLower(), "");
                if (currentRptName.Equals(reportName))
                {
                    if (operationalMode.ToLower() == "servermode" && analysisMode=="olap")
                    {
                        var reportString = "";
                        OlapDataManager DataManager = new OlapDataManager(connectionString);
                        reportString = OLAPUTILS.Utils.CompressData(row.ItemArray[1] as byte[]);
                        DataManager.Reports = pivotClientHelper.DeserializedReports(reportString);
                        DataManager.SetCurrentReport(DataManager.Reports[0]);
                        return pivotClientHelper.GetJsonData("toolbarOperation", DataManager, "Load Report", reportName);
                    }
                }
            }
            return dictionary;
        }

        private DataTable GetDataTable()
        {
            SqlCeConnection con = new SqlCeConnection() { ConnectionString = conStringforDB };
            con.Open();
            DataSet dSet = new DataSet();
            new SqlCeDataAdapter("Select * from ReportsTable", con).Fill(dSet);
            con.Close();
            return dSet.Tables[0];
        }

        public void Export(Stream stream)
        {
            System.IO.StreamReader sReader = new System.IO.StreamReader(stream);
            string args = System.Web.HttpContext.Current.Server.UrlDecode(sReader.ReadToEnd()).Remove(0, 5);
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            string fileName = "Sample";
            pivotClientHelper.ExportPivotClient(DataManager, args, fileName, System.Web.HttpContext.Current.Response);
        }

        public string GetMDXQuery(string olapReport)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            DataManager.SetCurrentReport(OLAPUTILS.Utils.DeserializeOlapReport(olapReport));
            return DataManager.GetMDXQuery();
        }

        public Dictionary<string, object> ToggleAxis(string action, string currentReport, string clientReports)
        {
            OlapDataManager DataManager = new OlapDataManager(connectionString);
            DataManager.SetCurrentReport(OLAPUTILS.Utils.DeserializeOlapReport(currentReport));
            DataManager.Reports = pivotClientHelper.DeserializedReports(clientReports);
            DataManager.ToggleAxis(DataManager.CurrentReport);
            return pivotClientHelper.GetJsonData(action, DataManager, clientReports);
        }

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

            MeasureElements measureElement = new MeasureElements();
            measureElement.Elements.Add(new MeasureElement { UniqueName = "[Measures].[Customer Count]" });

            DimensionElement dimensionElementRow = new DimensionElement();
            dimensionElementRow.Name = "Date";
            dimensionElementRow.AddLevel("Fiscal", "Fiscal Year");

            olapReport.SeriesElements.Add(dimensionElementRow);
            olapReport.CategoricalElements.Add(measureElement);

            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 PivotClientDemo.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="PivotClientDemo.OlapService">
        <endpoint address="" behaviorConfiguration="PivotClientDemo.OlapServiceAspNetAjaxBehavior"
        binding="webHttpBinding" contract="PivotClientDemo.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="PivotClientDemo.OlapServiceAspNetAjaxBehavior">
        <enableWebScript />
        </behavior>
    </endpointBehaviors>
    </behaviors>
……
……
</system.serviceModel>

NOTE

In this example, “PivotClientDemo” 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, PivotClient is rendered with PivotChart and PivotGrid showing Customer Count over a period of fiscal years.