WebBrowserExtensionsEvaluateScriptAsync(IChromiumWebBrowserBase, String, NullableTimeSpan, Boolean) Method |
Version 130.1.90
Evaluate Javascript in the context of this Browsers Main Frame. The script will be executed
asynchronously and the method returns a Task encapsulating the response from the Javascript
Namespace: CefSharpAssembly: CefSharp (in CefSharp.dll) Version: 129.0.110.0 (129.0.110.0)
Syntax public static Task<JavascriptResponse> EvaluateScriptAsync(
this IChromiumWebBrowserBase browser,
string script,
TimeSpan? timeout = null,
bool useImmediatelyInvokedFuncExpression = false
)
public:
[ExtensionAttribute]
static Task<JavascriptResponse^>^ EvaluateScriptAsync(
IChromiumWebBrowserBase^ browser,
String^ script,
Nullable<TimeSpan> timeout = nullptr,
bool useImmediatelyInvokedFuncExpression = false
)
Parameters
- browser IChromiumWebBrowserBase
- The ChromiumWebBrowser instance this method extends.
- script String
- The Javascript code that should be executed.
- timeout NullableTimeSpan (Optional)
- (Optional) The timeout after which the Javascript code execution should be aborted.
- useImmediatelyInvokedFuncExpression Boolean (Optional)
- When true the script is wrapped in a self executing function.
Make sure to use a return statement in your javascript. e.g. (function () { return 42; })();
When false don't include a return statement e.g. 42;
Return Value
TaskJavascriptResponseTaskTResult that can be awaited to obtain the result of the script execution.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type
IChromiumWebBrowserBase. 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).
Exceptions See Also