ASPxClientGantt.TooltipShowing Event

Occurs before a tooltip is displayed.

Declaration

TooltipShowing: ASPxClientEvent<ASPxClientGanttTooltipShowingEventHandler<ASPxClientGantt>>

Event Data

The TooltipShowing event's data class is ASPxClientGanttTooltipShowingEventArgs. 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.
container	Returns a container for an instance of the tooltip.
task	Returns the processed task.

Remarks

Use the TooltipShowing event to specify tooltip content before it is displayed.

Run Demo: ASPxGantt - Chart Appearance Run Demo: MVCxGantt - Chart Appearance

Web Forms:

ASPX

aspx

<dx:ASPxGantt ID="Gantt" >
    <ClientSideEvents TooltipShowing="function(s, e) {
        //...
        e.container.innerHTML = 'text ' + e.task.title;
    }" />
</dx:ASPxGantt>

MVC:

Razor C#

cshtml

@Html.DevExpress().Gantt(settings => {
    settings.Name = "gantt";
    settings.ClientSideEvents.TooltipShowing = "function (s, e) { 
        //...
        e.container.innerHTML = 'text ' + e.task.title;
    }";
    ...
}).Bind(
    GanttDataProvider.Tasks, GanttDataProvider.Dependencies, 
    GanttDataProvider.Resources, GanttDataProvider.ResourceAssignments
).GetHtml()