aspnet-js-aspxclientgantt-ca4f9946.md
Occurs before a user deletes a dependency.
DependencyDeleting: ASPxClientEvent<ASPxClientGanttDependencyDeletingEventHandler<ASPxClientGantt>>
The DependencyDeleting event's data class is ASPxClientGanttDependencyDeletingEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| cancel | Specifies whether to cancel the related action (for example, row edit, export). Inherited from ASPxClientCancelEventArgs. |
| key | Specifies the dependency key. |
| values | Specifies the dependency values. |
Use the DependencyDeleting event to process dependency data before the dependency is deleted.
Run Demo: ASPxGantt - Client-Side EventsRun Demo: MVCxGantt - Client-Side Events
The following example illustrates how to cancel dependency deletion if the dependency’s predecessor task key is 10:
Web Forms:
<dx:ASPxGantt ID="Gantt" >
<ClientSideEvents DependencyDeleting="function(s, e) {
if (e.values["ParentID"] == 10) {
//...
e.cancel = true;
}
}" />
</dx:ASPxGantt>
MVC:
@Html.DevExpress().Gantt(settings => {
settings.Name = "gantt";
settings.ClientSideEvents.DependencyDeleting = "function (s, e) {
if (e.values["ParentID"] == 10) {
//...
e.cancel = true;
}
}";
...
}).Bind(
GanttDataProvider.Tasks, GanttDataProvider.Dependencies,
GanttDataProvider.Resources, GanttDataProvider.ResourceAssignments
).GetHtml()
See Also
ASPxClientGantt.DependencyDeleted