ASPxScheduler.AppointmentViewInfoCustomizing Event

Occurs every time an appointment is rendered, so its AppointmentViewInfoCustomizingEventArgs.ViewInfo is changed.

Namespace: DevExpress.Web.ASPxScheduler

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

NuGet Package: DevExpress.Web.Scheduler

Declaration

C#

public event AppointmentViewInfoCustomizingEventHandler AppointmentViewInfoCustomizing

VB.NET

Public Event AppointmentViewInfoCustomizing As AppointmentViewInfoCustomizingEventHandler

Event Data

The AppointmentViewInfoCustomizing event's data class is AppointmentViewInfoCustomizingEventArgs. The following properties provide information specific to this event:

Property	Description
ViewInfo	Contains information used to render the appointment.

Remarks

Handle this event to modify the way appointments are rendered and change their appearance.

The following code illustrates how to change the color of all appointments containing “Ind” substring in their Appointment.Subject and paint the status line differently for odd and even days.

C#

using System.Drawing;
// ...

protected void ASPxScheduler1_AppointmentViewInfoCustomizing(object sender, DevExpress.Web.ASPxScheduler.AppointmentViewInfoCustomizingEventArgs e)
{
    if (e.ViewInfo.Appointment.Subject.Contains("Ind"))
        e.ViewInfo.AppointmentStyle.BackColor = Color.IndianRed; 
    Color color = (e.ViewInfo.Appointment.Start.Day % 2 == 0) ? Color.Red : Color.Green;
    Color statusColor = (e.ViewInfo.Appointment.Start.Day % 2 == 0) ? Color.Yellow : Color.Pink;
    e.ViewInfo.StatusBackgroundColor = color;
    e.ViewInfo.StatusColor = statusColor;
}

VB.NET

Imports System.Drawing
' ...

Protected Sub ASPxScheduler1_AppointmentViewInfoCustomizing(ByVal sender As Object, ByVal e As DevExpress.Web.ASPxScheduler.AppointmentViewInfoCustomizingEventArgs)
    If e.ViewInfo.Appointment.Subject.Contains("Ind") Then
        e.ViewInfo.AppointmentStyle.BackColor = Color.IndianRed
    End If
    Dim color As Color = If(e.ViewInfo.Appointment.Start.Day Mod 2 = 0, System.Drawing.Color.Red, System.Drawing.Color.Green)
    Dim statusColor As Color = If(e.ViewInfo.Appointment.Start.Day Mod 2 = 0, System.Drawing.Color.Yellow, System.Drawing.Color.Pink)
    e.ViewInfo.StatusBackgroundColor = color
    e.ViewInfo.StatusColor = statusColor
End Sub

Note

If you use a custom appointment template, you should modify the template code to specify the template container’s property which is changed in the AppointmentViewInfoCustomizing handler, otherwise this change will have no effect. In this example, if the AppointmentStyle.BackColor is changed, then it should be explicitly specified as illustrated below.

ASPX

<Templates>
    <HorizontalSameDayAppointmentTemplate>
        <dxe:ASPxLabel ID="ASPxLabel1" runat="server" ForeColor="DarkBlue" 
BackColor=
'<%#((HorizontalAppointmentTemplateContainer)Container).Items.AppointmentStyle.BackColor%>' 
Text=
'<%#(HorizontalAppointmentTemplateContainer)Container).AppointmentViewInfo.Appointment.Subject%>'
            Width="100%">
            <Border BorderColor="Black" BorderStyle="Solid" BorderWidth="1px" />
        </dxe:ASPxLabel>                    
    </HorizontalSameDayAppointmentTemplate>
</Templates>