How to prevent WebView2(Edge based) to open a new window

Question

Inside Webview2 when I open a new tab, a new window outside WindowsForms is open. I want to prevent this window to Open, how can I do that?

Does this answer your question? [How to stop webview2 from opening new browser window rather than inside the browser](https://stackoverflow.com/questions/66002331/how-to-stop-webview2-from-opening-new-browser-window-rather-than-inside-the-brow) — Poul Bak, Feb 14 '21 at 18:17
no, Because It can't handle with pop up windows, only with new tabs. — Tiago Gomes, Feb 14 '21 at 19:21
There is [a good practice](https://stackoverflow.com/a/73841289/3193470) to make your app deals with new tabs like **real browsers** — 90Degree, Sep 26 '22 at 14:40

score 15 · Accepted Answer · edited Mar 07 '23 at 12:09

You can handle CoreWebView2.NewWindowRequested to decide about new window

To completely suppress the popup, set e.Handled = true;
To show the popup content in the same window, set e.NewWindow = (CoreWebView2)sender;
To open in another specific instance, set e.NewWindow to the other CoreWebView2 instance.

For example:

//using Microsoft.Web.WebView2.Core;
//using Microsoft.Web.WebView2.WinForms;

WebView2 webView21 = new WebView2();
private async void Form1_Load(object sender, EventArgs e)
{
    webView21.Dock = DockStyle.Fill;
    this.Controls.Add(webView21);
    webView21.Source = new Uri("Https://stackoverflow.com");
    await webView21.EnsureCoreWebView2Async();
    webView21.CoreWebView2.NewWindowRequested += CoreWebView2_NewWindowRequested;
}

private void CoreWebView2_NewWindowRequested(object sender,
    CoreWebView2NewWindowRequestedEventArgs e)
{
    e.NewWindow = (CoreWebView2)sender;
    //e.Handled = true;
}

score 2 · Answer 2 · answered Aug 12 '21 at 21:27

To complement @Reza answer I was having this exact problem in VB.Net but all the answers were for C# so im going to post it in here if anyone else needs it.

First make sure to import this:

Imports Microsoft.Web.WebView2.Core
Imports Microsoft.Web.WebView2.WinForms

And then add this 2 events just replace wVBrowser with your Webview2 control name.

Private Sub wVBrowser_CoreWebView2InitializationCompleted(sender As Object, e As CoreWebView2InitializationCompletedEventArgs) Handles wVBrowser.CoreWebView2InitializationCompleted
            AddHandler wVBrowser.CoreWebView2.NewWindowRequested, AddressOf CoreWebView2_NewWindowRequested
        End Sub
Private Sub CoreWebView2_NewWindowRequested(ByVal sender As Object, ByVal e As Microsoft.Web.WebView2.Core.CoreWebView2NewWindowRequestedEventArgs)
            e.Handled = True
        End Sub

score 2 · Answer 3 · edited Mar 07 '23 at 12:10

2

Just be careful about where you register the WebView.CoreWebView2.NewWindowRequested event..

I tried to use Browser.Initialized event in which handler I would register this event handler but that event is never raised.

I had to use Browser.CoreWebView2InitializationCompleted and now everything works just fine..

edited Mar 07 '23 at 12:10

Andrew Truckle

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answered Feb 06 '22 at 05:07

Ondrej Valenta

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How to prevent WebView2(Edge based) to open a new window

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