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View this topic on docs.devexpress.com (Learn more)

Overlapped Gantt Chart

Expanded Short Description

The Overlapped Gantt Chart is represented by the OverlappedGanttSeriesView object, which belongs to Gantt Series Views (also called Time or Timeline charts). This view displays horizontal bars along the time axis. Each bar represents a separate event with the start and end values, hence these charts are used to track different activities during the time frame (e.g. plan the use of various resources, review the project's completion in project management, etc.). This chart type is useful when it's necessary to show activity bars from different series one above another, to compare their duration.


To learn how to exclude holidays and weekends from an axis scale, refer to Data Aggregation.

An Overlapped Gantt chart is shown in the following image.

Note that it's common for Gantt charts to show the date-time axis (axis of values) horizontally, hence the Gantt chart can't be rotated. This is the reason why the GanttDiagram.Rotated property for the GanttDiagram is hidden and unavailable.

Expanded Chart Type Characteristics

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

Feature Value
Series View type OverlappedGanttSeriesView
Diagram type 2D-GanttDiagram
Number of arguments per series point 1
Number of values per series point 2 date-time values (Start and End)

For information on which chart types can be combined with the Overlapped Gantt Chart, refer to the Series Views Compatibility document.

Expanded Example

For a design time example on how to create a Gantt chart, refer to How to: Create a Gantt Chart with Task Links.

The following example demonstrates how to create a ChartControl with two series of the OverlappedGanttSeriesView 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.


A complete sample project is available in the DevExpress Code Examples database at http://www.devexpress.com/example=E1218.

Expanded See Also

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