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A View Model defines the structure of your data. It acts as a reusable blueprint that contains a collection of properties, such as a car’s color, speed, and damage. Each property has a type, such as Number, String, Boolean, Color, Enum, or List (For more information, see View Model Properties). View Models do not store values themselves. Instead, values are stored in one or more View Model Instances that are created from the View Model. For example, if you were building a racing game, you might create a Car View Model with the following properties:
A single View Model can be used to create many View Model Instances. Each instance shares the same structure but stores its own values.
The properties in your instances can then be bound to elements in your designs, allowing text, images, colors, animations, state machines, and other properties to react to data changes automatically.

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Creating a View Model

A View Model defines the structure of your data. Before creating View Model Instances or setting up data bindings, you’ll first need to create a View Model and add properties to it.
New Rive files come with a default view model called “ViewModel1” that is already attached to the main artboard.
1

Add a View Model

In the Data panel, click the + icon and select View Model or Global View Model.
2

Add Properties

In the Data panel, click the Add View Model Property button next to the view model name and select your property type.
Create a View Model

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Creating and Editing Instances

Once your View Model has been created, you can create one or more View Model Instances that store actual values for those properties.

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Creating a View Model Instance

A View Model can have multiple instances. Each instance contains its own set of property values while sharing the same structure defined by the View Model.
When creating a new View Model, Rive automatically creates a View Model Instance named “Instance” so you can immediately begin testing bindings and previewing data.
Create a View Model Instance
1

View existing instances

Select a View Model in the Data panel, then click the Controls icon next to the instance name in the Inspector.
To see all of your view model instances and values at once, click the Open Table Data button.Open table data
2

Add an instance

Click the + icon to add a new instance.
3

Name the instance

Double click the instance’s name to rename it.
4

Update the instance data

With the instance selected, change any of its properties.Note that this changes only the values on the selected view model instance.

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Removing Instances

Click the - icon next to the instance name to delete it. Remove a View Model Instance
Deleting a View Model Instance does not remove the View Model or its properties. It only removes that instance and its stored values.

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Exporting Instances

By default, exported View Model Instances are included in the .riv file. Disable Export Instance when the data is only needed during development, not in your application at runtime. Export an Instance

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Connecting View Model Instances to Artboards

Before binding data, you’ll need to decide where the data should live. Rive supports a few common patterns:

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Global View Model Instances

Global view models are not connected to a specific artboard. Instead, the view model instance and its properties are directly accessible to all artboards.

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Instances Attached to Artboards

View Model instances can be attached to a specific artboard or nested component. This is useful when only that artboard and its children need access to that data.

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Instances as Nested Properties

View Models can have properties that are View Model instances. In this pattern, the parent View Model stores references to child instances, either directly or through a list.
Attach instance to component This approach is useful when a parent artboard needs to manage a collection of items while still allowing each component to maintain its own data.

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Stateful Components

A stateful component is an instance of a component that maintains its own data. Unlike traditional component View Model Instances, these instances do not need to be created or referenced by the parent View Model. Instead their properties are exposed in the sidebar. Stateful components For more information, see Stateful Components.