DxScheduler.ShowAppointmentTooltipAsync(DxSchedulerAppointmentItem) Method

Shows an appointment tooltip.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.1.dll

NuGet Package: DevExpress.Blazor

Declaration

public Task ShowAppointmentTooltipAsync(
    DxSchedulerAppointmentItem appointment = null
)

Optional Parameters

Name	Type	Default	Description
appointment	DxSchedulerAppointmentItem	null	The appointment for which to show the tooltip. null to pass the selected appointment.

Returns

Type	Description
Task	The task that is completed when an appointment tooltip is shown.

Remarks

You can use the ShowAppointmentTooltipAsync method to show an appointment’s tooltip in code.

The following code snippet customizes the header of the extended edit form (AppointmentFormHeaderTemplate). The header displays the following elements:

• The appointment’s subject.
• A custom Appointment Tooltip button. The Click event handler uses ShowAppointmentTooltipAsync method to show an appointment’s tooltip.

Razor

<DxScheduler StartDate="@DateTime.Today"
             DataStorage="@DataStorage"
             @ref="Scheduler">
    <Views>
        <DxSchedulerWeekView ShowWorkTimeOnly="false"
                             TimeIndicatorVisibility="SchedulerTimeIndicatorVisibility.Never"
                             TimeScale="@(new TimeSpan(0,15,0))"
                             WorkTime="@(new DxSchedulerTimeSpanRange(TimeSpan.FromHours(9), TimeSpan.FromHours(18)))"
                             VisibleTime="@(new DxSchedulerTimeSpanRange(TimeSpan.FromHours(8), TimeSpan.FromHours(19)))">
        </DxSchedulerWeekView>
    </Views>
    <AppointmentCompactFormHeaderTemplate>
        <div class="popup-text-header">@context.Subject</div>
        <DxButton Click="@(() => Scheduler.ShowAppointmentTooltipAsync())"
                  Text="Show Tooltip"
                  IconCssClass="oi oi-browser"
                  RenderStyle="ButtonRenderStyle.None"
                  CssClass="custom-button">
        </DxButton>
    </AppointmentCompactFormHeaderTemplate>
</DxScheduler>

@code {
    ISchedulerAppointmentActions Scheduler { get; set; }

    DxSchedulerDataStorage DataStorage = new DxSchedulerDataStorage() {
        AppointmentsSource = AppointmentCollection.GetAppointments(),
        AppointmentMappings = new DxSchedulerAppointmentMappings() {
            Type = "AppointmentType",
            Start = "StartDate",
            End = "EndDate",
            Subject = "Caption",
            AllDay = "AllDay",
            Location = "Location",
            Description = "Description",
            LabelId = "Label",
            StatusId = "Status",
            RecurrenceInfo = "Recurrence"
        }
    };
}

<style>
    .popup-text-header {
        margin-right: auto;
        text-overflow: ellipsis;
        overflow: hidden;
        white-space: nowrap;
    }

    .custom-button {
        color: white
    }
</style>

Appointment.cs

using System;

namespace Scheduler.Data
{
    public class Appointment {
        public Appointment() { }
        public int AppointmentType { get; set; }
        public DateTime StartDate { get; set; }
        public DateTime EndDate { get; set; }
        public string Caption { get; set; }
        public string Description { get; set; }
        public string Location { get; set; }
        public int? Label { get; set; }
        public int Status { get; set; }
        public bool AllDay { get; set; }
        public string Recurrence { get; set; }
        public int? ResourceId { get; set; }
        public bool Accepted { get; set; }
    }
}

AppointmentCollection.cs

using System;
using System.Collections.Generic;
using System.Globalization;

namespace Scheduler.Data
{
    public static partial class AppointmentCollection {
        public static List<Appointment> GetAppointments()
        {
            DateTime date = DateTime.Today;
            var dataSource = new List<Appointment>() {
               new Appointment {
                   Caption = "Upgrade Personal Computers",
                   StartDate = date + (new TimeSpan(0,  14, 0, 0)),
                   EndDate = date + (new TimeSpan(0, 16, 30, 0)),
                   Label = 1,
                   Status = 1
               },
               new Appointment {
                   Caption = "Install New Router in Dev Room",
                   StartDate = date + (new TimeSpan(0, 11, 30, 0)),
                   EndDate = date + (new TimeSpan(0, 13, 30, 0)),
                   Label = 6,
                   Status = 1
               },
               new Appointment {
                   Caption = "New Brochures",
                   StartDate = date + (new TimeSpan(1, 15, 00, 0)),
                   EndDate = date + (new TimeSpan(1, 16, 45, 0)),
                   Label = 8,
                   Status = 1
               },
               new Appointment {
                   Caption = "Approve Personal Computer Upgrade Plan",
                   StartDate = date + (new TimeSpan(3, 13, 30, 0)),
                   EndDate = date + (new TimeSpan(3, 16, 0, 0)),
                   Label = 1,
                   Status = 1
               },
               new Appointment {
                   Caption = "Customer Workshop",
                   StartDate = date + (new TimeSpan(4,  11, 0, 0)),
                   EndDate = date + (new TimeSpan(4, 12, 0, 0)),
                   AllDay = true,
                   Label = 8,
                   Status = 1
               },
               new Appointment {
                   Caption = "Upgrade Server Hardware",
                   StartDate = date + (new TimeSpan(6, 11, 0, 0)),
                   EndDate = date + (new TimeSpan(6, 13, 30, 0)),
                   Label = 6,
                   Status = 1
               },
               new Appointment {
                   AppointmentType = 1,
                   Caption = "Daily Meeting",
                   StartDate = date + (new TimeSpan(0, 9, 00, 0)),
                   EndDate = date + (new TimeSpan(0, 10, 00, 0)),
                   Label = 10,
                   Status = 1,
                   Recurrence = string.Format("<RecurrenceInfo Type=\"0\" Start=\"{0}\" Range=\"1\" OccurrenceCount=\"10\" Frequency =\"1\" Id=\"72e3db8f-cdb6-4aaa-afe1-e3c6b80ce995\"/>", ToString(date + (new TimeSpan(0, 9, 00, 0))))
               }
           };
            return dataSource;
        }

        private static string ToString(DateTime dateTime) {
            return dateTime.ToString(CultureInfo.InvariantCulture);
        }
    }
}

Implements

ShowAppointmentTooltipAsync(DxSchedulerAppointmentItem)