CoreWebView2Frame.WebMessageReceived Event

Definition

Namespace:

Microsoft.Web.WebView2.Core

Assembly:

Microsoft.Web.WebView2.Core.dll

Package:

Microsoft.Web.WebView2 v1.0.2849.39

WebMessageReceived is raised when the IsWebMessageEnabled setting is set and the iframe runs window.chrome.webview.postMessage.

public event EventHandler<Microsoft.Web.WebView2.Core.CoreWebView2WebMessageReceivedEventArgs> WebMessageReceived;

member this.WebMessageReceived : EventHandler<Microsoft.Web.WebView2.Core.CoreWebView2WebMessageReceivedEventArgs> 

Public Custom Event WebMessageReceived As EventHandler(Of CoreWebView2WebMessageReceivedEventArgs) 

Event Type

EventHandler<CoreWebView2WebMessageReceivedEventArgs>

Examples

void WebView_FrameCreatedWebMessages(object sender, CoreWebView2FrameCreatedEventArgs args)
{
    args.Frame.WebMessageReceived += (WebMessageReceivedSender, WebMessageReceivedArgs) =>
    {
        HandleWebMessage(WebMessageReceivedArgs);
    };
}

Remarks

The postMessage function is void postMessage(object) where object is any object supported by JSON conversion. When postMessage is called, the handler's Invoke method will be called with the object parameter postMessage converted to a JSON string.