DashboardOlapDataSource Class

An OLAP data source that provides data for the dashboard.

Namespace: DevExpress.DashboardCommon

Assembly: DevExpress.Dashboard.v23.2.Core.dll

NuGet Package: DevExpress.Dashboard.Core

Declaration

C#

public class DashboardOlapDataSource :
    IDisposable,
    IDashboardDataSource,
    IDashboardComponent,
    IComponent,
    ISupportInitialize,
    ISupportPrefix,
    IDashboardDataSourceInternal,
    IDataComponent,
    IDataConnectionParametersService,
    ISensitiveInfoContainer

VB.NET

Public Class DashboardOlapDataSource
    Implements IDisposable,
               IDashboardDataSource,
               IDashboardComponent,
               IComponent,
               ISupportInitialize,
               ISupportPrefix,
               IDashboardDataSourceInternal,
               IDataComponent,
               IDataConnectionParametersService,
               ISensitiveInfoContainer

Remarks

To create a data source that uses a connection to an OLAP cube, create the instance of the DashboardOlapDataSource class and perform the following steps.

1. Create the OlapConnectionParameters class object and specify the DashboardOlapDataSource.ConnectionString property.

   Pass the resulting OlapConnectionParameters object to the DashboardOlapDataSource constructor.

   Note

   As an alternative, you can add a connection string with required parameters to the application configuration file. Then, assign the connection string name to the DashboardOlapDataSource.ConnectionName property.

2. Add the created DashboardOlapDataSource object to the Dashboard.DataSources collection.

For .NET Dashboard, OLAP mode supports the following data providers:

• XML for Analysis (XMLA) with MSMDPUMP;
• ADOMD.NET (from v 21.1.4).

Use the DashboardOlapDataSource.OlapDataProvider static property to specify the data provider.

Example

The following code snippets show how to bind a dashboard to an OLAP cube using DashboardOlapDataSource.

The `DashboardOlapDataSource`` allows you to establish a connection to the OLAP cube by specifying a connection string.

Form1.vb

Dim olapParams As New OlapConnectionParameters()
olapParams.ConnectionString = "provider=MSOLAP;" _
                    & ControlChars.CrLf & _
                    "data source=http://demos.devexpress.com/Services/OLAP/msmdpump.dll;" _
                    & ControlChars.CrLf & _
                    "initial catalog=Adventure Works DW Standard Edition;" _
                    & ControlChars.CrLf & _
                    "cube name=Adventure Works;"

Dim olapDataSource As New DashboardOlapDataSource(olapParams)
olapDataSource.Fill()

dashboardDesigner1.Dashboard.DataSources.Add(olapDataSource)

Form1.cs

OlapConnectionParameters olapParams = new OlapConnectionParameters();
olapParams.ConnectionString = @"provider=MSOLAP;
                      data source=http://demos.devexpress.com/Services/OLAP/msmdpump.dll;
                      initial catalog=Adventure Works DW Standard Edition;
                      cube name=Adventure Works;";

DashboardOlapDataSource olapDataSource = new DashboardOlapDataSource(olapParams);
olapDataSource.Fill();

dashboardDesigner1.Dashboard.DataSources.Add(olapDataSource);

Implements

IDashboardDataSource

IDataComponent

Inheritance

Object

DashboardOlapDataSource