Class RecurrenceHelper

Represents a helper for handling recurrence appointments.

Inheritance
object
RecurrenceHelper
Inherited Members
Namespace: Syncfusion.Blazor.Schedule
Assembly: Syncfusion.Blazor.dll
Syntax
public static class RecurrenceHelper

Methods

GetRecurrenceDateTimeCollection(string, string, int, DateTime, DateTime?, DateTime?, DateTime?, int?)

Method to get recurrence appointment's date-time collection.

Declaration
public static ObservableCollection<DateTime> GetRecurrenceDateTimeCollection(string recurrenceRule, string excludedDates, int firstDayOfWeek, DateTime recurrenceStartDate, DateTime? recurrenceEndDate, DateTime? dateRangeStart, DateTime? dateRangeEnd, int? maximumCount)
Parameters
Type Name Description
string recurrenceRule

RRule of Recurrence appointment's.
string excludedDates

Dates exclude from collection
int firstDayOfWeek

First day of week
DateTime recurrenceStartDate

Recurrence start date.
DateTime? recurrenceEndDate

Recurrence end date.
DateTime? dateRangeStart

Start date to collect the recurrence dates from the specified date range.
DateTime? dateRangeEnd

End date to collect the recurrence dates from the specified date range.
int? maximumCount

Length of the recurrence DateTime collection.
Returns
Type Description
ObservableCollection<DateTime>

Collection of recurrence date time
Examples
List<DateTime> dateList = new List<DateTime>();
void GetDates()
{
    dateList = RecurrenceHelper.GetRecurrenceDateTimeCollection("FREQ=WEEKLY;BYDAY=TU;INTERVAL=1;", "20221220T090000Z", 0, new DateTime(2022, 11, 9), new DateTime(2023, 1, 31), new DateTime(2022, 11, 9), new DateTime(2023, 1, 31), 9).ToList();  
}

GetRuleSummary(string, ISyncfusionStringLocalizer)

Method to get the rule summary.

Declaration
public static string GetRuleSummary(string recurrenceRule, ISyncfusionStringLocalizer localizer)
Parameters
Type Name Description
string recurrenceRule

Recurrence rule.
ISyncfusionStringLocalizer localizer

Syncfusion Localizer.
Returns
Type Description
string

Recurrence rule summary
Examples
@inject ISyncfusionStringLocalizer Localizer
string ruleSummary;
void RuleSummary()
{
    ruleSummary = RecurrenceHelper.GetRuleSummary("FREQ=WEEKLY;BYDAY=TU;INTERVAL=1;", Localizer);
}
Exceptions
Type Condition
ArgumentNullException

Recurrence rule or localizer is null