How to clear webview cache in .net maui?

Question

Let me know how to clear the webview cache

Answer 1

Hello,

==================Update=============

System.NullReferenceException: 'Object reference not set to an instance of an object.

Please change from using Microsoft.Web.WebView2.WinForms; to using Microsoft.UI.Xaml.Controls; in the Test's background code.

MAUI that targets Windows platform uses WinUI3, you can try getting the native platform view (WebView2) with WebViewHandler on Windows, then clean cookie by CoreWebView2CookieManager.DeleteAllCookies Method. Please refer to the following code:

XML

<StackLayout>  
        <Button Text="ClearCookie" Clicked="Button_Clicked"></Button>  
        <WebView x:Name="MyWebview" Source="XXXX" HeightRequest="400" WidthRequest="400" ></WebView>  
</StackLayout>

Clicking button to clean cookies.

private void Button_Clicked(object sender, EventArgs e)
    {
#if WINDOWS
        var platformView = MyWebview.Handler.PlatformView as WebView2;
        platformView.CoreWebView2.CookieManager.DeleteAllCookies();
#endif
    }

Best Regards,

Leon Lu

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