webview2- reopen PDF at last viewed location

[ookuboToshihiro]

I am using webview2 to display the pdf.
I want to get the scroll position of the currently displayed pdf.

document.documentElement.scrollTop and window.scrollX
cannot be obtained.

How can I get it?

[vickiez]

Hi @ookuboToshihiro, can you share more about the scenario you are trying to accomplish? Are you trying to reopen the PDF at the last viewed location?

[ookuboToshihiro]

I'm creating an application with webview2 in VisualStudio.
I want to save the scroll position when displaying a pdf.
(I want to display at the same position when reopen pdf）

The following code can not get the scroll position.
How can I get it?

---

private async void button1_Click(object sender, EventArgs e)
{
var js = new System.Text.StringBuilder();
js.AppendLine("alert('scroll(document.documentElement.scrollLeft,document.documentElement.scrollTop) 　X：' + document.documentElement.scrollLeft + '　Y：' + document.documentElement.scrollTop);");
js.AppendLine("alert('scroll(window.scrollX,Y)　X：' + window.scrollX + ' Y：' + window.scrollY );");
js.AppendLine("alert('embed count = ' + document.getElementsByTagName('embed').length);");
js.AppendLine("alert('scrollTop = ' + document.getElementsByTagName('embed').scrollTop);");

await webView21.ExecuteScriptAsync(js.ToString());

}

[ookuboToshihiro]

The above PDF is read as follows.

webView21.CoreWebView2.Navigate("C:\Users\user\Desktop\abc.pdf");