IDayViewHeaderItemCustomizer Interface

The interface that should implement a class that modifies appearance settings of individual Day View header items.

Namespace: DevExpress.XamarinForms.Scheduler

Assembly: DevExpress.XamarinForms.Scheduler.dll

Declaration

public interface IDayViewHeaderItemCustomizer

Related API Members

The following members return IDayViewHeaderItemCustomizer objects:

• DayViewHeaderItemStyle.Customizer

Example

This example demonstrates how to use the day view header item style and its customizer to modify the header’s appearance.

XAML

<dxs:WorkWeekView.HeaderItemStyle>
    <dxs:DayViewHeaderItemStyle 
        BackgroundColor="Gray" 
        TodayDayNumberBackgroundColor="#FF8000" 
        TextSpacing="16"
        BorderThickness="2"
        BorderColor="#f0f0f0">
        <dxs:DayViewHeaderItemStyle.DayNumberTextStyle>
            <dxs:TextStyle Color="Black"/>
        </dxs:DayViewHeaderItemStyle.DayNumberTextStyle>
        <dxs:DayViewHeaderItemStyle.TodayDayNumberTextStyle>
            <dxs:TextStyle Color="White"/>
        </dxs:DayViewHeaderItemStyle.TodayDayNumberTextStyle>
        <dxs:DayViewHeaderItemStyle.WeekDayTextStyle>
            <dxs:TextStyle Color="Black"/>
        </dxs:DayViewHeaderItemStyle.WeekDayTextStyle>
        <dxs:DayViewHeaderItemStyle.TodayWeekDayTextStyle>
            <dxs:TextStyle Color="#FF8000"/>
        </dxs:DayViewHeaderItemStyle.TodayWeekDayTextStyle>
        <dxs:DayViewHeaderItemStyle.Customizer>
            <views:HeaderItemCustomizer/>
        </dxs:DayViewHeaderItemStyle.Customizer>
    </dxs:DayViewHeaderItemStyle>
</dxs:WorkWeekView.HeaderItemStyle>

C#

class HeaderItemCustomizer : IDayViewHeaderItemCustomizer {
    public void Customize(DayViewHeaderItemViewModel header) {
        if (header.IsToday) {
            header.BackgroundColor = header.AlternateBackgroundColor;
            header.AlternateBackgroundColor = Color.White;
            Color tmp = header.DayNumberTextColor;
            header.DayNumberTextColor = header.WeekDayTextColor;
            header.WeekDayTextColor = tmp;
        }
    }
}

Symbol	Description
DayViewBase.HeaderItemStyle	Gets or sets appearance settings of header items.
DayViewHeaderItemStyle	The storage for the Day-based View’s date header appearance settings.
DayViewHeaderItemStyle.Customizer	Gets or sets an object that customizes the view models that provide data for headers.
IDayViewHeaderItemCustomizer	The interface that should implement a class that modifies appearance settings of individual Day View header items.
IDayViewHeaderItemCustomizer.Customize(DayViewHeaderItemViewModel)	Modifies appearance settings of an individual Day View header item.
DayViewHeaderItemViewModel	The storage for appearance settings values of an individual Day View header item‘s representation.