WKWebView.EvaluateJavaScript Method
Definition
Important
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Overloads
| Name | Description |
|---|---|
| EvaluateJavaScript(NSString, WKJavascriptEvaluationResult) | |
| EvaluateJavaScript(String, WKJavascriptEvaluationResult) |
Evaluates JavaScript and calls back into C# with the results. |
| EvaluateJavaScript(String, WKFrameInfo, WKContentWorld, Action<NSObject,NSError>) |
EvaluateJavaScript(NSString, WKJavascriptEvaluationResult)
[Foundation.Export("evaluateJavaScript:completionHandler:")]
[ObjCRuntime.BindingImpl(ObjCRuntime.BindingImplOptions.GeneratedCode | ObjCRuntime.BindingImplOptions.Optimizable)]
public virtual void EvaluateJavaScript(Foundation.NSString javascript, WebKit.WKJavascriptEvaluationResult? completionHandler);[<Foundation.Export("evaluateJavaScript:completionHandler:")>]
[<ObjCRuntime.BindingImpl(ObjCRuntime.BindingImplOptions.GeneratedCode | ObjCRuntime.BindingImplOptions.Optimizable)>]
abstract member EvaluateJavaScript : Foundation.NSString * WebKit.WKJavascriptEvaluationResult -> unit
override this.EvaluateJavaScript : Foundation.NSString * WebKit.WKJavascriptEvaluationResult -> unitParameters
- javascript
- NSString
- completionHandler
- WKJavascriptEvaluationResult
- Attributes
Applies to
EvaluateJavaScript(String, WKJavascriptEvaluationResult)
Evaluates JavaScript and calls back into C# with the results.
[ObjCRuntime.BindingImpl(ObjCRuntime.BindingImplOptions.GeneratedCode | ObjCRuntime.BindingImplOptions.Optimizable)]
public void EvaluateJavaScript(string javascript, WebKit.WKJavascriptEvaluationResult completionHandler);[<ObjCRuntime.BindingImpl(ObjCRuntime.BindingImplOptions.GeneratedCode | ObjCRuntime.BindingImplOptions.Optimizable)>]
member this.EvaluateJavaScript : string * WebKit.WKJavascriptEvaluationResult -> unitParameters
- javascript
- String
- completionHandler
- WKJavascriptEvaluationResult
- Attributes
Remarks
The system calls completionHandler after evaluation. The arguments to the handler are an NSObject containing the results of the evaluation and an NSError if an error. If an error occurred, the result argument will be null. If no error occurred, the error argument will be null.
var config = new WKWebViewConfiguration();
var wk = new WKWebView(UIScreen.MainScreen.Bounds, config);
var js = (NSString) "document.getElementById('foo').innerHTML = 'bar'";
WKJavascriptEvaluationResult handler = (NSObject result, NSError err) => {
if(err != null)
{
System.Console.WriteLine(err);
}
if(result != null)
{
System.Console.WriteLine(result);
}
};
wk.EvaluateJavaScript(js, handler);
Applies to
EvaluateJavaScript(String, WKFrameInfo, WKContentWorld, Action<NSObject,NSError>)
[Foundation.Export("evaluateJavaScript:inFrame:inContentWorld:completionHandler:")]
[ObjCRuntime.BindingImpl(ObjCRuntime.BindingImplOptions.GeneratedCode | ObjCRuntime.BindingImplOptions.Optimizable)]
public virtual void EvaluateJavaScript(string javaScriptString, WebKit.WKFrameInfo? frame, WebKit.WKContentWorld contentWorld, Action<Foundation.NSObject,Foundation.NSError>? completionHandler);[<Foundation.Export("evaluateJavaScript:inFrame:inContentWorld:completionHandler:")>]
[<ObjCRuntime.BindingImpl(ObjCRuntime.BindingImplOptions.GeneratedCode | ObjCRuntime.BindingImplOptions.Optimizable)>]
abstract member EvaluateJavaScript : string * WebKit.WKFrameInfo * WebKit.WKContentWorld * Action<Foundation.NSObject, Foundation.NSError> -> unit
override this.EvaluateJavaScript : string * WebKit.WKFrameInfo * WebKit.WKContentWorld * Action<Foundation.NSObject, Foundation.NSError> -> unitParameters
- javaScriptString
- String
- frame
- WKFrameInfo
- contentWorld
- WKContentWorld
- Attributes