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WebBrowserExtensionsEvaluateScriptAsync Method (IWebBrowser, NullableTimeSpan, String, Object)
Version 63.0.0
Evaluate some Javascript code in the context of this WebBrowser using the specified timeout. The script will be executed asynchronously and the method returns a Task encapsulating the response from the Javascript This simple helper extension will encapsulate params in single quotes (unless int, uint, etc)

Namespace: CefSharp
Assembly: CefSharp (in CefSharp.dll) Version: (
public static Task<JavascriptResponse> EvaluateScriptAsync(
	this IWebBrowser browser,
	Nullable<TimeSpan> timeout,
	string methodName,
	params Object[] args


Type: CefSharpIWebBrowser
The ChromiumWebBrowser instance this method extends
Type: SystemNullableTimeSpan
The timeout after which the Javascript code execution should be aborted.
Type: SystemString
The javascript method name to execute
Type: SystemObject
the arguments to be passed as params to the method

Return Value

Type: TaskJavascriptResponse
TaskTResult that can be awaited to perform the script execution

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).
See Also