Floating Action Button

• Dec 17, 2020
• 3 minutes to read

The Floating Action Button (FAB) is a circular button with an image that appears in front of the scheduler’s content and provides access to the most frequently used actions. The floating action button’s actions depend on the triggered element in the scheduler. For example, the floating action button provides the “Open”, “Edit”, and “Delete” actions if a user selects an appointment or provides the “Create new Appointment” action if a user selects a time cell.

Concept

The floating action button provides two types of actions.

• Action - Executes the action once an end-user clicks the floating action button.
• Action group - The floating action button serves as a container for multiple actions. When pressed, the floating action button expands nested actions.

Floating Action Button Object

The scheduler stores the floating action button’s settings in the FloatingActionButtonProperties object that is accessed by the ASPxScheduler.FloatingActionButton property.

Property	Description
FloatingActionButtonProperties.TextVisibilityMode	Specifies whether the floating action button’s text should be displayed.
FloatingActionButtonProperties.HorizontalMargin	Specifies the floating action button element’s horizontal margin.
FloatingActionButtonProperties.VerticalMargin	Specifies the floating action button element’s vertical margin.

The floating action button stores its items in the FloatingActionButtonProperties.Items collection that is accessed at the FloatingActionButtonProperties object level.

Action

The following types of actions are available.

Object	Description
FABAction	Represents a custom action.
FABCreateAppointmentAction	Represents the “Create an appointment” action.

Use the following settings to customize an action.

Property	Description
FABCollectionItemBase.ActionName	Specifies the action name.
FABActionBase.ContextName	Specifies the context name.
FABCollectionItemBase.Text	Specifies the floating action button’s text.
FABAction.Image	Provides access to the floating action button’s image settings.

ASPX

<dx:ASPxScheduler ID="DemoScheduler" runat="server" Width="100%">
...
    <FloatingActionButton>
        <Items>
            <dx:FABCreateAppointmentAction></dx:FABCreateAppointmentAction>
        </Items>
    </FloatingActionButton>
</dx:ASPxScheduler>

Action Group

The following types of an action group are available.

Object	Description
FABActionGroup	Represents a custom group of actions.
FABCreateAppointmentActionGroup	Represents a group of action items that allow you to create an appointment.
FABEditAppointmentActionGroup	Represents a group of action items that allow you to edit an appointment.

Use the following settings to customize an action group.

Property	Description
FABActionGroup.ActionName	Specifies the action group’s name.
FABActionBase.ContextName	Specifies the context name.
FABCollectionItemBase.Text	Specifies the action group’s text.
FABActionGroup.CollapseImage	Provides access to the collapse image settings.
FABActionGroup.ExpandImage	Provides access to the expand image settings.
FABCollectionItemBase.CssClass	Specifies the cascading style sheet’s (CSS) class name that specifies the action group’s style.

Action Item

Each action group stores its action items in the Items collection. An action item can be an instance of the following type.

Object	Description
FABActionItem	Represents a custom action item.
FABEditAppointmentActionItem	Represents an action item that allows you to edit an appointment.
FABDeleteAppointmentActionItem	Represents an action item that allows you to delete an appointment.
FABCreateRecurringAppointmentActionItem	Represents an action item that allows you to create a recurring appointment.
FABCreateAppointmentActionItem	Represents an action item that allows you to create an appointment.

You can change the following characteristics of an individual action item.

Property	Description
FABCollectionItemBase.ActionName	Specifies the action item’s name.
FABCollectionItemBase.Text	Specifies the action item’s text.
FABActionItem.Image	Provides access to the action item’s image settings.
FABCollectionItemBase.CssClass	Specifies the cascading style sheet’s (CSS) class name that specifies the action item’s style.

ASPX

<dx:ASPxScheduler ID="DemoScheduler" runat="server" Width="100%" ClientInstanceName="DemoScheduler" ActiveViewType="FullWeek" GroupType="Resource"
    AppointmentDataSourceID="AppointmentDataSource" ResourceDataSourceID="efResourceDataSource" OnCustomCallback="DemoScheduler_CustomCallback">
    <ClientSideEvents
        SelectionChanged="OnSelectionChanged"
        CustomActionItemClick="OnCustomActionItemClick"
        CellClick="OnCellClick"
        Init="OnInit"
    />
    <FloatingActionButton>
        <Items>
            <dx:FABCreateAppointmentActionGroup></dx:FABCreateAppointmentActionGroup>
            <dx:FABEditAppointmentActionGroup></dx:FABEditAppointmentActionGroup>
            <dx:FABActionGroup ContextName="Scale">
                <ExpandImage Url="../Content/FAB/TimeRulerContext.svg" Width="24px" Height="24px"></ExpandImage>
                <Items>
                    <dx:FABActionItem ActionName="Scale15Minutes">
                        <Image Url="../Content/FAB/15m.svg" Width="32px" Height="32px"></Image>
                    </dx:FABActionItem>
                    <dx:FABActionItem ActionName="Scale30Minutes">
                        <Image Url="../Content/FAB/30m.svg" Width="32px" Height="32px"></Image>
                    </dx:FABActionItem>
                    <dx:FABActionItem ActionName="Scale1Hour">
                        <Image Url="../Content/FAB/1h.svg" Width="32px" Height="32px"></Image>
                    </dx:FABActionItem>
                </Items>
            </dx:FABActionGroup>
        </Items>
    </FloatingActionButton>
...
</dx:ASPxScheduler>