Hi John,
Greetings from Syncfusion Support,
To achieve your requirement, we suggest using the Dialog Edit or
Context Menu in the Gantt chart. When a taskbar is double-clicked, the Edit
Dialog opens, allowing navigation to the Dependency tab, where dependencies for
a specific task can be deleted. Alternatively, when right-clicking on a
taskbar, a context menu option will appear, allowing you to delete the
predecessor of the selected task.
<SfGantt
DataSource="@TaskCollection"
EnableContextMenu="true" >
..
<GanttEditSettings AllowTaskbarEditing="true" AllowDeleting="true" AllowEditing="true" Mode="Syncfusion.Blazor.Gantt.EditMode.Auto"></GanttEditSettings>
</SfGantt>
|
Image ref:


Sample attached as zip file.
For more information, you may refer to the following link:
https://blazor.syncfusion.com/documentation/gantt-chart/editing-tasks#task-dependencies
https://blazor.syncfusion.com/documentation/gantt-chart/context-menu
If you have any further questions or need additional assistance, please let me
know!
Regards,
Ajithkumar
G
Attachment:
Index_4b1339d4.zip