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Toast content schema

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The following describes all of the properties and elements within toast content.

If you would rather use raw XML instead of the Notifications library, please see the XML schema.

ToastContent

ToastContent

ToastContent is the top level object that describes a notification's content, including visuals, actions, and audio.

Property Type Required Description
Launch string false A string that is passed to the application when it is activated by the Toast. The format and contents of this string are defined by the app for its own use. When the user taps or clicks the Toast to launch its associated app, the launch string provides the context to the app that allows it to show the user a view relevant to the Toast content, rather than launching in its default way.
Visual ToastVisual true Describes the visual portion of the toast notification.
Actions IToastActions false Optionally create custom actions with buttons and inputs.
Audio ToastAudio false Describes the audio portion of the toast notification.
ActivationType ToastActivationType false Specifies what activation type will be used when the user clicks the body of this Toast.
ActivationOptions ToastActivationOptions false New in Creators Update: Additional options relating to activation of the toast notification.
Scenario ToastScenario false Declares the scenario your toast is used for, like an alarm or reminder.
DisplayTimestamp DateTimeOffset? false New in Creators Update: Override the default timestamp with a custom timestamp representing when your notification content was actually delivered, rather than the time the notification was received by the Windows platform.
Header ToastHeader false New in Creators Update: Add a custom header to your notification to group multiple notifications together within Action Center.

ToastScenario

Specifies what scenario the toast represents.

Value Meaning
Default The normal toast behavior.
Reminder A reminder notification. This will be displayed pre-expanded and stay on the user's screen till dismissed.
Alarm An alarm notification. This will be displayed pre-expanded and stay on the user's screen till dismissed. Audio will loop by default and will use alarm audio.
IncomingCall An incoming call notification. This will be displayed pre-expanded in a special call format and stay on the user's screen till dismissed. Audio will loop by default and will use ringtone audio.

ToastVisual

The visual portion of toasts contains the bindings, which contains text, images, adaptive content, and more.

Property Type Required Description
BindingGeneric ToastBindingGeneric true The generic toast binding, which can be rendered on all devices. This binding is required and cannot be null.
BaseUri Uri false A default base URL that is combined with relative URLs in image source attributes.
AddImageQuery bool? false Set to "true" to allow Windows to append a query string to the image URL supplied in the toast notification. Use this attribute if your server hosts images and can handle query strings, either by retrieving an image variant based on the query strings or by ignoring the query string and returning the image as specified without the query string. This query string specifies scale, contrast setting, and language; for instance, a value of "www.website.com/images/hello.png" given in the notification becomes "www.website.com/images/hello.png?ms-scale=100&ms-contrast=standard&ms-lang=en-us"
Language string false The target locale of the visual payload when using localized resources, specified as BCP-47 language tags such as "en-US" or "fr-FR". This locale is overridden by any locale specified in binding or text. If not provided, the system locale will be used instead.

ToastBindingGeneric

The generic binding is the default binding for toasts, and is where you specify the text, images, adaptive content, and more.

Property Type Required Description
Children IList<IToastBindingGenericChild> false The contents of the body of the Toast, which can include text, images, and groups (added in Anniversary Update). Text elements must come before any other elements, and only 3 text elements are supported. If a text element is placed after any other element, it will either be pulled to the top or dropped. And finally, certain text properties like HintStyle aren't supported on the root children text elements, and only work inside an AdaptiveSubgroup. If you use AdaptiveGroup on devices without the Anniversary Update, the group content will simply be dropped.
AppLogoOverride ToastGenericAppLogo false An optional logo to override the app logo.
HeroImage ToastGenericHeroImage false An optional featured "hero" image that is displayed on the toast and within Action Center.
Attribution ToastGenericAttributionText false Optional attribution text which will be displayed at the bottom of the toast notification.
BaseUri Uri false A default base URL that is combined with relative URLs in image source attributes.
AddImageQuery bool? false Set to "true" to allow Windows to append a query string to the image URL supplied in the toast notification. Use this attribute if your server hosts images and can handle query strings, either by retrieving an image variant based on the query strings or by ignoring the query string and returning the image as specified without the query string. This query string specifies scale, contrast setting, and language; for instance, a value of "www.website.com/images/hello.png" given in the notification becomes "www.website.com/images/hello.png?ms-scale=100&ms-contrast=standard&ms-lang=en-us"
Language string false The target locale of the visual payload when using localized resources, specified as BCP-47 language tags such as "en-US" or "fr-FR". This locale is overridden by any locale specified in binding or text. If not provided, the system locale will be used instead.

IToastBindingGenericChild

Marker interface for toast child elements that include text, images, groups, and more.

Implementations
AdaptiveText
AdaptiveImage
AdaptiveGroup
AdaptiveProgressBar

AdaptiveText

An adaptive text element. If placed in the top level ToastBindingGeneric.Children, only HintMaxLines will be applied. But if this is placed as a child of a group/subgroup, full text styling is supported.

Property Type Required Description
Text string or BindableString false The text to display. Data binding support added in Creators Update, but only works for top-level text elements.
HintStyle AdaptiveTextStyle false The style controls the text's font size, weight, and opacity. Only works for text elements inside a group/subgroup.
HintWrap bool? false Set this to true to enable text wrapping. Top-level text elements ignore this property and always wrap (you can use HintMaxLines = 1 to disable wrapping for top-level text elements). Text elements inside groups/subgroups default to false for wrapping.
HintMaxLines int? false The maximum number of lines the text element is allowed to display.
HintMinLines int? false The minimum number of lines the text element must display. Only works for text elements inside a group/subgroup.
HintAlign AdaptiveTextAlign false The horizontal alignment of the text. Only works for text elements inside a group/subgroup.
Language string false The target locale of the XML payload, specified as a BCP-47 language tags such as "en-US" or "fr-FR". The locale specified here overrides any other specified locale, such as that in binding or visual. If this value is a literal string, this attribute defaults to the user's UI language. If this value is a string reference, this attribute defaults to the locale chosen by Windows Runtime in resolving the string.

BindableString

A binding value for strings.

Property Type Required Description
BindingName string true Gets or sets the name that maps to your binding data value.

AdaptiveTextStyle

Text style controls font size, weight, and opacity. Subtle opacity is 60% opaque.

Value Meaning
Default Default value. Style is determined by the renderer.
Caption Smaller than paragraph font size.
CaptionSubtle Same as Caption but with subtle opacity.
Body Paragraph font size.
BodySubtle Same as Body but with subtle opacity.
Base Paragraph font size, bold weight. Essentially the bold version of Body.
BaseSubtle Same as Base but with subtle opacity.
Subtitle H4 font size.
SubtitleSubtle Same as Subtitle but with subtle opacity.
Title H3 font size.
TitleSubtle Same as Title but with subtle opacity.
TitleNumeral Same as Title but with top/bottom padding removed.
Subheader H2 font size.
SubheaderSubtle Same as Subheader but with subtle opacity.
SubheaderNumeral Same as Subheader but with top/bottom padding removed.
Header H1 font size.
HeaderSubtle Same as Header but with subtle opacity.
HeaderNumeral Same as Header but with top/bottom padding removed.

AdaptiveTextAlign

Controls the horizontal alignmen of text.

Value Meaning
Default Default value. Alignment is automatically determined by the renderer.
Auto Alignment determined by the current language and culture.
Left Horizontally align the text to the left.
Center Horizontally align the text in the center.
Right Horizontally align the text to the right.

AdaptiveImage

An inline image.

Property Type Required Description
Source string true The URL to the image. ms-appx, ms-appdata, and http are supported. As of the Fall Creators Update, web images can be up to 3 MB on normal connections and 1 MB on metered connections. On devices not yet running the Fall Creators Update, web images must be no larger than 200 KB.
HintCrop AdaptiveImageCrop false New in Anniversary Update: Control the desired cropping of the image.
HintRemoveMargin bool? false By default, images inside groups/subgroups have an 8px margin around them. You can remove this margin by setting this property to true.
HintAlign AdaptiveImageAlign false The horizontal alignment of the image. Only works for images inside a group/subgroup.
AlternateText string false Alternate text describing the image, used for accessibility purposes.
AddImageQuery bool? false Set to "true" to allow Windows to append a query string to the image URL supplied in the toast notification. Use this attribute if your server hosts images and can handle query strings, either by retrieving an image variant based on the query strings or by ignoring the query string and returning the image as specified without the query string. This query string specifies scale, contrast setting, and language; for instance, a value of "www.website.com/images/hello.png" given in the notification becomes "www.website.com/images/hello.png?ms-scale=100&ms-contrast=standard&ms-lang=en-us"

AdaptiveImageCrop

Specifies the desired cropping of the image.

Value Meaning
Default Default value. Cropping behavior determined by renderer.
None Image is not cropped.
Circle Image is cropped to a circle shape.

AdaptiveImageAlign

Specifies the horizontal alignment for an image.

Value Meaning
Default Default value. Alignment behavior determined by renderer.
Stretch Image stretches to fill available width (and potentially available height too, depending on where the image is placed).
Left Align the image to the left, displaying the image at its native resolution.
Center Align the image in the center horizontally, displayign the image at its native resolution.
Right Align the image to the right, displaying the image at its native resolution.

AdaptiveGroup

New in Anniversary Update: Groups semantically identify that the content in the group must either be displayed as a whole, or not displayed if it cannot fit. Groups also allow creating multiple columns.

Property Type Required Description
Children IList<AdaptiveSubgroup> false Subgroups are displayed as vertical columns. You must use subgroups to provide any content inside an AdaptiveGroup.

AdaptiveSubgroup

New in Anniversary Update: Subgroups are vertical columns that can contain text and images.

Property Type Required Description
Children IList<IAdaptiveSubgroupChild> false AdaptiveText and AdaptiveImage are valid children of subgroups.
HintWeight int? false Control the width of this subgroup column by specifying the weight, relative to the other subgroups.
HintTextStacking AdaptiveSubgroupTextStacking false Control the vertical alignment of this subgroup's content.

IAdaptiveSubgroupChild

Marker interface for subgroup children.

Implementations
AdaptiveText
AdaptiveImage

AdaptiveSubgroupTextStacking

TextStacking specifies the vertical alignment of content.

Value Meaning
Default Default value. Renderer automatically selects the default vertical alignment.
Top Vertical align to the top.
Center Vertical align to the center.
Bottom Vertical align to the bottom.

AdaptiveProgressBar

New in Creators Update: A progress bar. Only supported on toasts on Desktop, build 15063 or later.

Property Type Required Description
Title string or BindableString false Gets or sets an optional title string. Supports data binding.
Value double or AdaptiveProgressBarValue or BindableProgressBarValue false Gets or sets the value of the progress bar. Supports data binding. Defaults to 0.
ValueStringOverride string or BindableString false Gets or sets an optional string to be displayed instead of the default percentage string. If this isn't provided, something like "70%" will be displayed.
Status string or BindableString true Gets or sets a status string (required), which is displayed underneath the progress bar on the left. This string should reflect the status of the operation, like "Downloading..." or "Installing..."

AdaptiveProgressBarValue

A class that represents the progress bar's value.

Property Type Required Description
Value double false Gets or sets the value (0.0 - 1.0) representing the percent complete.
IsIndeterminate bool false Gets or sets a value indicating whether the progress bar is indeterminate. If this is true, Value will be ignored.

BindableProgressBarValue

A bindable progress bar value.

Property Type Required Description
BindingName string true Gets or sets the name that maps to your binding data value.

A logo to be displayed instead of the app logo.

Property Type Required Description
Source string true The URL to the image. ms-appx, ms-appdata, and http are supported. Http images must be 200 KB or less in size.
HintCrop ToastGenericAppLogoCrop false Specify how you would like the image to be cropped.
AlternateText string false Alternate text describing the image, used for accessibility purposes.
AddImageQuery bool? false Set to "true" to allow Windows to append a query string to the image URL supplied in the toast notification. Use this attribute if your server hosts images and can handle query strings, either by retrieving an image variant based on the query strings or by ignoring the query string and returning the image as specified without the query string. This query string specifies scale, contrast setting, and language; for instance, a value of "www.website.com/images/hello.png" given in the notification becomes "www.website.com/images/hello.png?ms-scale=100&ms-contrast=standard&ms-lang=en-us"

ToastGenericAppLogoCrop

Controls the cropping of the app logo image.

Value Meaning
Default Cropping uses the default behavior of the renderer.
None Image is not cropped, displayed square.
Circle Image is cropped to a circle.

ToastGenericHeroImage

A featured "hero" image that is displayed on the toast and within Action Center.

Property Type Required Description
Source string true The URL to the image. ms-appx, ms-appdata, and http are supported. Http images must be 200 KB or less in size.
AlternateText string false Alternate text describing the image, used for accessibility purposes.
AddImageQuery bool? false Set to "true" to allow Windows to append a query string to the image URL supplied in the toast notification. Use this attribute if your server hosts images and can handle query strings, either by retrieving an image variant based on the query strings or by ignoring the query string and returning the image as specified without the query string. This query string specifies scale, contrast setting, and language; for instance, a value of "www.website.com/images/hello.png" given in the notification becomes "www.website.com/images/hello.png?ms-scale=100&ms-contrast=standard&ms-lang=en-us"

ToastGenericAttributionText

Attribution text displayed at the bottom of the toast notification.

Property Type Required Description
Text string true The text to display.
Language string false The target locale of the visual payload when using localized resources, specified as BCP-47 language tags such as "en-US" or "fr-FR". If not provided, the system locale will be used instead.

IToastActions

Marker interface for toast actions/inputs.

Implementations
ToastActionsCustom
ToastActionsSnoozeAndDismiss

ToastActionsCustom

Implements IToastActions

Create your own custom actions and inputs, using controls like buttons, text boxes, and selection inputs.

Property Type Required Description
Inputs IList<IToastInput> false Inputs like text boxes and selection inputs. Only up to 5 inputs are allowed.
Buttons IList<IToastButton> false Buttons are displayed after all the inputs (or adjacent to an input if the button is used as a quick reply button). Only up to 5 buttons are allowed (or fewer if you also have context menu items).
ContextMenuItems IList<ToastContextMenuItem> false New in Anniversary Update: Custom context menu items, providing additional actions if the user right clicks the notification. You can only have up to 5 buttons and context menu items combined.

IToastInput

Marker interface for toast inputs.

Implementations
ToastTextBox
ToastSelectionBox

ToastTextBox

Implements IToastInput

A text box control that the user can type text into.

Property Type Required Description
Id string true The Id is required, and is used to map the user-inputted text into a key-value pair of id/value which your app later consumes.
Title string false Title text to display above the text box.
PlaceholderContent string false Placeholder text to be displayed on the text box when the user hasn't typed any text yet.
DefaultInput string false The initial text to place in the text box. Leave this null for a blank text box.

ToastSelectionBox

Implements IToastInput

A selection box control, which lets users pick from a dropdown list of options.

Property Type Required Description
Id string true The Id is required. If the user selected this item, this Id will be passed back to your app's code, representing which selection they chose.
Content string true Content is required, and is a string that is displayed on the selection item.

ToastSelectionBoxItem

A selection box item (an item that the user can select from the drop down list).

Property Type Required Description
Id string true The Id is required, and is used to map the user-inputted text into a key-value pair of id/value which your app later consumes.
Title string false Title text to display above the selection box.
DefaultSelectionBoxItemId string false This controls which item is selected by default, and refers to the Id property of the ToastSelectionBoxItem. If you do not provide this, the default selection will be empty (user sees nothing).
Items IList<ToastSelectionBoxItem> false The selection items that the user can pick from in this SelectionBox. Only 5 items can be added.

IToastButton

Marker interface for toast buttons.

Implementations
ToastButton
ToastButtonSnooze
ToastButtonDismiss

ToastButton

Implements IToastButton

A button that the user can click.

Property Type Required Description
Content string true Required. The text to display on the button.
Arguments string true Required. App-defined string of arguments that the app will later receive if the user clicks this button.
ActivationType ToastActivationType false Controls what type of activation this button will use when clicked. Defaults to Foreground.
ActivationOptions ToastActivationOptions false New in Creators Update: Gets or sets additional options relating to activation of the toast button.

ToastActivationType

Decides the type of activation that will be used when the user interacts with a specific action.

Value Meaning
Foreground Default value. Your foreground app is launched.
Background Your corresponding background task (assuming you set everything up) is triggered, and you can execute code in the background (like sending the user's quick reply message) without interrupting the user.
Protocol Launch a different app using protocol activation.

ToastActivationOptions

New in Creators Update: Additional options relating to activation.

Property Type Required Description
AfterActivationBehavior ToastAfterActivationBehavior false New in Fall Creators Update: Gets or sets the behavior that the toast should use when the user invokes this action. This only works on Desktop, for ToastButton and ToastContextMenuItem.
ProtocolActivationTargetApplicationPfn string false If you are using ToastActivationType.Protocol, you can optionally specify the target PFN, so that regardless of whether multiple apps are registered to handle the same protocol uri, your desired app will always be launched.

ToastAfterActivationBehavior

Specifies the behavior that the toast should use when the user takes action on the toast.

Value Meaning
Default Default behavior. The toast will be dismissed when the user takes action on the toast.
PendingUpdate After the user clicks a button on your toast, the notification will remain present, in a "pending update" visual state. You should immediately update your toast from a background task so that the user does not see this "pending update" visual state for too long.

ToastButtonSnooze

Implements IToastButton

A system-handled snooze button that automatically handles snoozing of the notification.

Property Type Required Description
CustomContent string false Optional custom text displayed on the button that overrides the default localized "Snooze" text.

ToastButtonDismiss

Implements IToastButton

A system-handled dismiss button that dismisses the notification when clicked.

Property Type Required Description
CustomContent string false Optional custom text displayed on the button that overrides the default localized "Dismiss" text.

ToastActionsSnoozeAndDismiss

*Implements IToastActions

Automatically constructs a selection box for snooze intervals, and snooze/dismiss buttons, all automatically localized, and snoozing logic is automatically handled by the system.

Property Type Required Description
ContextMenuItems IList<ToastContextMenuItem> false New in Anniversary Update: Custom context menu items, providing additional actions if the user right clicks the notification. You can only have up to 5 items.

ToastContextMenuItem

A context menu item entry.

Property Type Required Description
Content string true Required. The text to display.
Arguments string true Required. App-defined string of arguments that the app can later retrieve once it is activated when the user clicks the menu item.
ActivationType ToastActivationType false Controls what type of activation this menu item will use when clicked. Defaults to Foreground.
ActivationOptions ToastActivationOptions false New in Creators Update: Additional options relating to activation of the toast context menu item.

ToastAudio

Specify audio to be played when the Toast notification is received.

Property Type Required Description
Src uri false The media file to play in place of the default sound. Only ms-appx and ms-resource are supported. All else (ms-appdata, http, C:, etc.) is not supported.
Loop boolean false Set to true if the sound should repeat as long as the Toast is shown; false to play only once (default).
Silent boolean false True to mute the sound; false to allow the toast notification sound to play (default).

ToastHeader

New in Creators Update: A custom header that groups multiple notifications together within Action Center.

Property Type Required Description
Id string true A developer-created identifier that uniquely identifies this header. If two notifications have the same header id, they will be displayed underneath the same header in Action Center.
Title string true A title for the header.
Arguments string true Gets or sets a developer-defined string of arguments that is returned to the app when the user clicks this header. Cannot be null.
ActivationType ToastActivationType false Gets or sets the type of activation this header will use when clicked. Defaults to Foreground. Note that only Foreground and Protocol are supported.
ActivationOptions ToastActivationOptions false Gets or sets additional options relating to activation of the toast header.