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WebBrowserExtensionsRegisterAsyncJsObject Method

Version 102.0.100

Note: This API is now obsolete.

Asynchronously registers a Javascript object in this specific browser instance.

Only methods of the object will be availabe.

Namespace:  CefSharp
Assembly:  CefSharp (in CefSharp.dll) Version: (
[ObsoleteAttribute("This method has been removed, see for details on migrating your code.")]
public static void RegisterAsyncJsObject(
	this IWebBrowser webBrowser,
	string name,
	Object objectToBind,
	BindingOptions options = null


Type: CefSharpIWebBrowser
The browser to perform the registering on
Type: SystemString
The name of the object. (e.g. "foo", if you want the object to be accessible as
Type: SystemObject
The object to be made accessible to Javascript.
options (Optional)
Type: CefSharpBindingOptions
binding options - camelCaseJavascriptNames default to true

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IWebBrowser. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).
ExceptionBrowser is already initialized. RegisterJsObject must be + called before the underlying CEF browser is created.
The registered methods can only be called in an async way, they will all return immediately and the resulting object will be a standard javascript Promise object which is usable to wait for completion or failure.
See Also