Is there a way to disable back or forward navigation in Webview2 winforms

Question

In webview2, setting source property to Uri for navigating.

Let's say First URL is opened in webview2 then navigated to another URL. With the back button on Right-click context menu, able to navigate to the first page.

From google search, found there is no direct way to disable back and forward as of now.

In the normal system forms browser, performed an approach like below which is working

added a bool variable(like IsMyNavigationCall), setting it to true whenever just before navigating to some URL Added a check in NavigationStarted event and if it's false(when navigation triggered from actions like back) cancelling the request and resetting the bool variable.

In Webview2, it's not working. The problem is navigation is not cancelled even after setting CoreWebView2NavigationStartingEventArgs.cancel to true.

Is there any way or kind of hack to prevent navigation between the back and forward?

I think you should do this in javascript, here you can call History.replace when navigating, then there will be only one page in the history, which of course makes it impossible to got back/forward, — Poul Bak
– Poul Bak, Commented Mar 8, 2022 at 12:41
History Inteface doesn't have Replace member. It has ReplaceState. Should that be used? — Loch
– Loch, Commented Mar 8, 2022 at 14:15
On second thought: May be Location.replace is better: developer.mozilla.org/en-US/docs/Web/API/Location/replace — Poul Bak
– Poul Bak, Commented Mar 8, 2022 at 14:37
back button is disabled after changing code from webView.CoreWebView2.Navigate("https://www.google.com"); to await webView.ExecuteScriptAsync("window.location.replace('https://www.google.com')"); — Loch
– Loch, Commented Mar 9, 2022 at 2:35

It all makes cents · Accepted Answer · 2022-03-08 16:11:22Z

1

It seems that you're looking for CoreWebView2.HistoryChanged Event. In order to enable/disable a "Back" button and a "Forward" button when a new URL is navigated to in WebView2, try the following:

Given:

WebView2 control: webView21
Back button: btnBack
Forward button: btnForward

//subscribe to CoreWebView2 events (add event handlers)
webView21.CoreWebView2.HistoryChanged += CoreWebView2_HistoryChanged;

                           ...

private void CoreWebView2_HistoryChanged(object sender, object e)
{
    btnBack.Enabled = webView21.CoreWebView2.CanGoBack;
    btnForward.Enabled = webView21.CoreWebView2.CanGoForward;
}

answered Mar 8, 2022 at 16:11

It all makes cents

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3 Comments

Loch Over a year ago

I was looking to prevent back /forward navigation in webview2 or prevent the saving of history. CanGoBack and CanGoForward are property with only Get exposed

23W Over a year ago

This is not answer on the question

It all makes cents Over a year ago

@23W: This post is more than a year old, but thanks for the feedback.

Vigo_C · Accepted Answer · 2022-06-22 12:06:42Z

0

You can disable the context menu and the accelatorkeys via CoreWeView2.Settings https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2settings?view=webview2-winrt-1.0.1245.22#arebrowseracceleratorkeysenabled

https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2settings?view=webview2-winrt-1.0.1245.22#aredefaultcontextmenusenabled

Example:

webView.CoreWebView2.Settings.AreDefaultContextMenusEnabled = false;
webView.CoreWebView2.Settings.AreBrowserAcceleratorKeysEnabled = false;

answered Jun 22, 2022 at 12:06

Vigo_C

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2 Comments

Loch Over a year ago

This Disables all keyboard shortcuts and context menu

Blightbuster Over a year ago

It also does not (despite what the msdn reference says) disable the mouse4 and mouse5 hotkeys to navigate back and forth.

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