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The OnClientRequestStart occurs when a request to the Web Service is about to be sent. The event is raised only when the Gantt is bound to a Web Service and is raised for every request sent to the service, including all CRUD operations on tasks, dependencies, resources and assignments.

The event handler receives two parameters:

  1. The instance of the Gantt control firing the event.

  2. An eventArgs parameter containing the following methods:

  • get_type returns the type of the request.

  • get_context returns a context object (implements IDictionary) that is passed to the Web Service method that handles the request.

  • set_cancel lets you cancel the event and stop the request.

<telerik:RadGantt RenderMode="Lightweight" runat="server" id="RadGantt1" OnClientRequestStart="OnClientRequestStart">
function OnClientRequestStart(sender, eventArgs) {

The event can be used to send additional information to the Web Service.

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