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 End-User Documentation

Funnel Series View

Expanded Short Description

The Funnel Chart is represented by the Funnel3DSeriesView object. Typically, a funnel chart displays a wide area at the top, indicating the total points' value, while other areas are proportionally smaller.

Funnel charts are often used to indicate stages in a sales process, e.g., to show the amount of potential revenue for each stage. This type of chart can also be useful in identifying potential problem areas in current processes, such as with an organization's sales.

In particular, the funnel chart indicates where the biggest bottlenecks are in your data. The funnel shows a process that starts at 100% and ends with a lower percentage, where it indicates the occurrence and rate of notable transitions in the data flow.

Normally, a funnel chart displays values as progressively decreasing proportions, which are expressed in the funnel series points' top widths. So, the data point which has the greatest value in the collection is considered to be 100%, and it is represented as the widest polygon, built on top of the funnel. The next series point value is represented by the subsequent polygon, whose top width represents its value's ratio to the previous point's value and so on, up to the last point, whose bottom width is equal to its top.

A funnel chart can be used to display Web site visitor trends, as the following image demonstrates.

Expanded Chart Type Characteristics

The table below lists the main characteristics of this chart type.

Feature

Value

Series View type Funnel3DSeriesView
Diagram type FunnelDiagram3D
Number of arguments per series point 1
Number of values per series point 1

Expanded Example

The following example demonstrates how to create a ChartControl with a series of the Funnel3DSeriesView type, and add this chart to a form at runtime. Before proceeding with this example, first create a Windows Forms Application in Visual Studio, and include all necessary assemblies to the References list of your project.

Then, add the following code to the Form.Load event handler.

Show Me

A complete sample project is available in the DevExpress Code Examples database at http://www.devexpress.com/example=E1552.

Expanded See Also

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