WebBrowserExtensionsEvaluateScriptAsPromiseAsync Method (IWebBrowser, String, NullableTimeSpan) |
Version 101.0.180
Evaluate Javascript in the context of the MainFrame of the ChromiumWebBrowser. The script will be executed
asynchronously and the method returns a Task encapsulating the response from the Javascript. The result of the script execution
in javascript is Promise.resolve so even no promise values will be treated as a promise. Your javascript should return a value.
The javascript will be wrapped in an Immediately Invoked Function Expression.
When the promise either trigger then/catch this returned Task will be completed.
Namespace:
CefSharp
Assembly:
CefSharp (in CefSharp.dll) Version: 101.0.180.0 (101.0.180.0)
Syntax public static Task<JavascriptResponse> EvaluateScriptAsPromiseAsync(
this IWebBrowser chromiumWebBrowser,
string script,
TimeSpan? timeout = null
)
public:
[ExtensionAttribute]
static Task<JavascriptResponse^>^ EvaluateScriptAsPromiseAsync(
IWebBrowser^ chromiumWebBrowser,
String^ script,
Nullable<TimeSpan> timeout = nullptr
)
Parameters
- chromiumWebBrowser
- Type: CefSharpIWebBrowser
The ChromiumWebBrowser instance this method extends. - script
- Type: SystemString
The Javascript code that should be executed. - timeout (Optional)
- Type: SystemNullableTimeSpan
(Optional) The timeout after which the Javascript code execution should be aborted.
Return Value
Type:
TaskJavascriptResponseTaskTResult 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).
Exceptions See Also