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V25.1
  • ASPxClientGantt.TaskUpdating Event

    Occurs before a user updates a task.

    #Declaration

    TypeScript
    TaskUpdating: ASPxClientEvent<ASPxClientGanttTaskUpdatingEventHandler<ASPxClientGantt>>

    #Event Data

    The TaskUpdating event's data class is ASPxClientGanttTaskUpdatingEventArgs. 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 task key.
    newValues Specifies the task’s new values.
    values Specifies the task values.

    #Remarks

    Gantt - Subtasks

    Use the TaskUpdating event to process task data before a task is updated.

    Run Demo: ASPxGantt - Client-Side Events Run Demo: MVCxGantt - Client-Side Events

    Web Forms:

    <dx:ASPxGantt ID="Gantt" >
        <ClientSideEvents TaskUpdating="function(s, e) {
            if (e.newValues["Subject"].includes("test")) {
                //...
                e.cancel = true;
            }
        }" />
    </dx:ASPxGantt>
    

    MVC:

    @Html.DevExpress().Gantt(settings => {
        settings.Name = "gantt";
        settings.ClientSideEvents.TaskUpdating = "function (s, e) { 
            if (e.newValues["Subject"].includes("test")) {
                //...
                e.cancel = true;
            }
        }";
        ...
    }).Bind(
        GanttDataProvider.Tasks, GanttDataProvider.Dependencies, 
        GanttDataProvider.Resources, GanttDataProvider.ResourceAssignments
    ).GetHtml()
    

    #Concepts

    See Also