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SchedulerExtension.GetAppointmentsToUpdate<T>(SchedulerSettings, FetchAppointmentsMethod, Object) Method

Obtains appointments whose data should be updated in the data source using the delegate method that enables you to dynamically limit the number of loaded appointments.

Namespace: DevExpress.Web.Mvc

Assembly: DevExpress.Web.Mvc5.v24.1.dll

NuGet Package: DevExpress.Web.Mvc5

Declaration

public static T[] GetAppointmentsToUpdate<T>(
    SchedulerSettings settings,
    FetchAppointmentsMethod fetchAppointmentsMethod,
    object resourceDataObject
)

Parameters

Name Type Description
settings SchedulerSettings

A SchedulerSettings object containing settings applied to the Scheduler.

fetchAppointmentsMethod FetchAppointmentsMethod

A FetchAppointmentsMethod delegate that provides appointments to insert.

resourceDataObject Object

A collection of resources in the scheduler.

Type Parameters

Name
T

Returns

Type Description
T[]

A Model data class instance that is the entity contained in the appointment data source and mapped to an appointment.

Remarks

The GetAppointmentsToUpdate<T> method instantiates a Scheduler and applies the specified settings. Then, an appointment being inserted is retrieved from this Scheduler instance.

For an example of use refer to the following code snippet.

View Example: Scheduler - How to implement the FetchAppointment event functionality

@Html.DevExpress().Scheduler(SchedulerSettingsHelper.CommonSchedulerSettings).Bind(Model.FetchAppointments, Model.Resources).GetHtml()
static void UpdateAppointment() {

    DBAppointment[] insertedAppt = SchedulerExtension.GetAppointmentsToInsert<DBAppointment>(SchedulerSettingsHelper.CommonSchedulerSettings,
        SchedulerDataHelper.FetchAppointmentsHelperMethod,
        SchedulerDataHelper.GetResources());
    foreach (var appt in insertedAppt) {
        SchedulerDataHelper.InsertAppointment(appt);
    }

    DBAppointment[] updatedAppt = SchedulerExtension.GetAppointmentsToUpdate<DBAppointment>(SchedulerSettingsHelper.CommonSchedulerSettings,
        SchedulerDataHelper.FetchAppointmentsHelperMethod,
        SchedulerDataHelper.GetResources());

    foreach (var appt in updatedAppt) {
        SchedulerDataHelper.UpdateAppointment(appt);
    }

    DBAppointment[] removedAppt = SchedulerExtension.GetAppointmentsToRemove<DBAppointment>(SchedulerSettingsHelper.CommonSchedulerSettings,
        SchedulerDataHelper.FetchAppointmentsHelperMethod, 
        SchedulerDataHelper.GetResources());
    foreach (var appt in removedAppt) {
        SchedulerDataHelper.RemoveAppointment(appt);
    }

}

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the GetAppointmentsToUpdate<T>(SchedulerSettings, FetchAppointmentsMethod, Object) method.

Note

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See Also