ChoiceChipGroup Class

A chip group that allows users to select a single chip.

Assembly: DevExpress.Maui.Editors.dll

NuGet Package: DevExpress.Maui.Editors

Declaration

public class ChoiceChipGroup :
    SelectableChipGroup

Remarks

Choice chips allow users to select a single option from a set. These chips are best used only when one choice is possible. For example, use choice chips to select the size of an item placed in a shopping cart. Choice chips can be a good alternative to radio buttons and combo boxes.

Choice Chip Group

Item Source

Use the ItemsSource property to bind a chip group to a source of data objects for chips. The DisplayMember and IconMember properties specify data fields that store text and icons for chips.

A chip’s BindingContext property contains the data object from the ItemsSource collection based on which this chip is generated.

XAML
C#

<dxe:ChoiceChipGroup 
    ItemsSource="{Binding Items}"
    DisplayMember="Text"
    IconMember="Image">
</dxe:ChoiceChipGroup>

public class ChipViewModel {
    public IList<ChipDataObject> Items { get; }
    public ChipViewModel() {
        Items = new List<ChipDataObject>() {
            new ChipDataObject("Extra Soft"),
            new ChipDataObject("Soft"),
            new ChipDataObject("Medium"),
            new ChipDataObject("Hard")
        };
    }
}

public class ChipDataObject {
    public ImageSource Image { get; }
    public string Text { get; }
    public ChipDataObject(string text) {
        Text = text;
    }
}

Chips Collection

If you do not bind a chip group to a data source, you can populate the ChipGroup.Chips collection with Chip objects. ChipGroup.Chips is a content property. You can skip property tags in the markup.

The markup below shows how to add chips into a choice group.

Chips

XAML

<dxe:ChoiceChipGroup x:Name="choiceChipGroup"
                     Margin="15"
                     BackgroundColor="Transparent"
                     IsMultiline="False"
                     ChipTextColor="#F8F2EA">
    <dxe:Chip Text="Black Coffee"
              BackgroundColor="#6F4E3D"/>
    <dxe:Chip Text="Decaf"
              BackgroundColor="#EDE7D9"
              TextColor="#A7A195"/>
    <dxe:Chip Text="Espresso"
              BackgroundColor="#B4A095"/>
    <dxe:Chip Text="Latte"
              BackgroundColor="#C2AA8E"/>
</dxe:ChoiceChipGroup>

Selected Chip

The SelectedChip property allows you to obtain the selected chip. To get the data object based on which the selected chip is created, use the SelectedItem property. You can also use the SelectedIndex property to specify the selected chip index.

The table below contains properties and events that allow you to respond to selection changes.

Action	Property/Event	Description
Selection Changes	SelectionChanged	Fires when a user (un)selects a chip in this group.
Selection Changes	SelectionChangedCommand	Gets or sets a command executed when a user (un)selects a chip in this group. This is a bindable property.

You can also use the IsSelectedMember property to store selection states in the bound data source.

User Interaction

The table below contains properties and events that allow you to respond to user interaction.

Action	Property/Event	Description
Tap	ChipTap	Fires when a user taps a chip in this group.
Tap	ChipTapCommand	Gets or sets a command executed when a user taps a chip in this group. This is a bindable property.
Double Tap	ChipDoubleTap	Fires when a user double-taps a chip in this group.
Double Tap	ChipDoubleTapCommand	Gets or sets a command executed when a user double-taps a chip in this group. This is a bindable property.
Long Press	ChipLongPress	Fires when a user taps and holds a chip in this group.
Long Press	ChipLongPressCommand	Gets or sets a command executed when a user taps and holds a chip in this group. This is a bindable property.

If chips are generated based on data objects in the ItemsSource collection, the default parameter passed to a command is the corresponding data object. If chips are created manually, the default parameter is the chip’s BindingContext property value.

Layout

The table below contains properties that allow you to customize the layout of chips in a group.

Aspect	Property	Description
Spacing	HorizontalSpacing	Gets or sets the horizontal amount of space between chips in this group. This is a bindable property.
Spacing	VerticalSpacing	Gets or sets the vertical amount of space between chips in this group when they are arranged in multiple rows. This is a bindable property.
Layout Rows	IsMultiline	Gets or sets whether chips in this group are displayed in single or multiple lines. This is a bindable property.
Scroll Bar	IsScrollBarVisible	Gets or sets whether the scroll bar is displayed. This is a bindable property.

Chip Text

The table below lists properties that allow you to specify and customize the text displayed in a chip.

Visual Element	Property	Description
Text Color	ChipTextColor	Gets or sets the text color for chips in this group. This is a bindable property.
	ChipSelectedTextColor	Gets or sets the text color for selected chips in this group. This is a bindable property.
	ChipDisabledTextColor	Gets or sets the text color for chips in this group when they are disabled. This is a bindable property.
	ChipSelectedDisabledTextColor	Gets or sets the text color for chips in this group when they are selected and disabled. This is a bindable property.
	ChipPressedTextColor	Gets or sets the text color for chips in this group when they are pressed. This is a bindable property.
Text Font	ChipFontFamily	Gets or sets the font family name for chips in this group. This is a bindable property.
	ChipFontSize	Gets or sets the font size for chips in this group. This is a bindable property.
	ChipFontAttributes	Gets or sets whether the font used to display text is bold, italic, or unmodified. This is a bindable property.

Chip Icons

A chip can display the following icons:

Chip Icon—an icon that, along with text, illustrates the purpose of the chip.
Check Icon—an icon displayed when a chip is selected (usually, a check mark).

The table below contains properties that allow you to customize these icons.

Visual Element	Property	Description
Chip Icon	ChipIsIconVisible	Gets or sets whether chips in this group display an icon. This is a bindable property.
	ChipIconIndent	Gets or sets the indent of the icon from text for chips in this group. This is a bindable property.
	ChipIconSize	Gets or sets the icon size. This is a bindable property.
	ChipRoundedIcon	Gets or sets whether chip icons in this group are rounded. This is a bindable property.
	ChipIconColor	Gets or sets the icon color for chips in this group. This is a bindable property.
	ChipDisabledIconColor	Gets or sets the icon color for chips in this group when they are disabled. This is a bindable property.
	ChipSelectedIconColor	Gets or sets the icon color for chips in this group when they are selected. This is a bindable property.
	ChipSelectedDisabledIconColor	Gets or sets the icon color for chips in this group when they are selected and disabled. This is a bindable property.
	ChipPressedIconColor	Gets or sets the icon color for chips in this group when they are pressed. This is a bindable property.
Check Icon	ChipCheckIcon	Gets or sets the check icon. This is a bindable property.
	ChipCheckIconColor	Gets or sets the color of the check icon for chips in this group. This is a bindable property.
	ChipDisabledCheckIconColor	Gets or sets the check icon’s color for chips in this group when they are disabled. This is a bindable property.
	ChipPressedCheckIconColor	Gets or sets the check icon’s color for chips in this group when they are pressed. This is a bindable property.

Chip Appearance

A chip can be in a normal, selected, pressed, or disabled state. The table below contains properties that allow you to customize chip appearance in these different states.

Visual Element	Property	Description
Background Color	ChipBackgroundColor	Gets or sets the background color for chips in this group when they are in the normal state. This is a bindable property.
	ChipSelectedBackgroundColor	Gets or sets the background color for chips in this group when they are selected. This is a bindable property.
	ChipDisabledBackgroundColor	Gets or sets the background color for chips in this group when they are disabled. This is a bindable property.
	ChipSelectedDisabledBackgroundColor	Gets or sets the background color for chips in this group when they are selected and disabled. This is a bindable property.
	ChipPressedBackgroundColor	Gets or sets the background color for chips in this group when they are pressed. This is a bindable property.
Border Color	ChipBorderColor	Gets or sets the border color for chips when they are in the normal state. This is a bindable property.
	ChipSelectedBorderColor	Gets or sets the border color for chips in this group when they are selected. This is a bindable property.
	ChipDisabledBorderColor	Gets or sets the border color in the disabled state. This is a bindable property.
	ChipSelectedDisabledBorderColor	Gets or sets the border color for chips in this group when they are selected and disabled. This is a bindable property.
	ChipPressedBorderColor	Gets or sets the border color for chips in this group when they are pressed. This is a bindable property.
Border Thickness	ChipBorderThickness	Gets or sets the border thickness for chips in this group. This is a bindable property.
Outlined/Filled Box	BoxMode	Gets or sets whether chips in this group are filled or outlined. This is a bindable property.
Chip Corner	ChipCornerRadius	Gets or sets a corner radius for chips in this group. This is a bindable property.
Padding	ChipPadding	Gets or sets an amount of space around chips in this group. This is a bindable property.
Animation	ChipUseRippleEffect	Gets or sets whether the chip groups displays a ripple effect when a user (un)selects a chip in this group. This is a bindable property.