When a property is set to Public, then arbitrary JavaScript execution can freely write to the back-end, which is likely undesirable in most cases. Interacting with components on the browser-side, such as writing to the text property on the text field, impacts the back-end and allows the gateway to react appropriately (i.e., trigger a property change script). In short, each active session is represented in a browser (which is the user interface side of the DOM) and on the Gateway (the back-end of the DOM). To understand what property access in Perspective is, you'll need to understand how the Document Object Model ( DOM) works. However setting property access level to Private or Protected will prevent such approaches, as browser-side script execution will be unable to access property values on the server side.
#Edit properties button lumion 8 code#
Instead they protect against malicious code execution in the browser. Normally a user can potentially execute arbitrary JavaScript code via developer tools (which generally are included with all web browsers) to interact with components and properties in the session. Property access settings do not restrict or inhibit built-in component interactions with bindings and python scripts. Perspective components have the ability to restrict access to properties from the app/browser. The following feature is new in Ignition version 8.0.5Ĭlick here to check out the other new features Note that each property is listed under a category: Props, Position, Custom, and Meta. The following image shows an example of the Property Editor for a Button component. This category of properties is used when passing parameters from one view to another view via navigation, or the Perspective - Embedded View component Meta - Properties defined by the Perspective Module itself for common things like the component’s name, and if the component is visible. Rename " key", to give the property a unique name, and change the " value" by entering number or string For example, if you want to add a single property, select " Value" and you'll see it has " key" and " value" objects.
To create a new custom property, all you need to do is select a property type such as Value, Object or Array.
Position - Properties defined by the component’s parent container control where the component is located inside the container. See individual Perspective Components for a list of the properties and their descriptions. Props - Properties that control the component's configuration and provides the runtime data for how the property appears and behaves in a session. The property categories are described below. Each property is placed into one of several categories, and each property category groups the properties by some commonality. Each Perspective component has a list of available properties.
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