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How to round-off or extend an edited task in ASP.NET Web Forms Gant?

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In ASP.NET Web Forms Gantt, it is possible to drop the edited taskbar in the middle of timescale units. For instance, in the week schedule mode, while editing the taskbar, the user can drop the taskbar either in middle of the day (1.5, 2.5, 2.5 days etc.,) or at the end of the day (1,2, 3 days etc.,).

This behavior can be changed and it is possible to make the taskbar always round off to the end of the timescale unit, in the above instance the taskbar can be made always to round off to the nearest day end while editing. This can be done by enabling the roundOffDuration event argument in “TaskbarEditing” client-side event. This event will be triggered while editing the taskbar.

Please refer the code snippet below to achieve this.

       <ej:Gantt ID="GanttControlDefault" ... TaskbarEditing="taskbarEditing">
                    function taskbarEditing(args) {
                        args.roundOffDuration = true;


Please refer the Sample link for more information about this 


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The Classic controls can be used in existing projects; however, if you are starting a new project, we recommend using the latest version of Essential Studio for ASP.NET. Although Syncfusion will continue to support all Classic Versions, we are happy to assist you in migrating to the newest edition.

For current customers, you can check out our components from the License and Downloads page. If you are new to Syncfusion, you can try our 30-day free trial to check out our other controls. If you have any queries or require clarifications, please let us know in the comments section below.

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