void NavigateWithWebResourceRequestCmdExecuted(object target, ExecutedRoutedEventArgs e)
{
// Prepare post data as UTF-8 byte array and convert it to stream
// as required by the application/x-www-form-urlencoded Content-Type
var dialog = new TextInputDialog(
title: "NavigateWithWebResourceRequest",
description: "Specify post data to submit to https://www.w3schools.com/action_page.php.");
if (dialog.ShowDialog() == true)
{
string postDataString = "input=" + dialog.Input.Text;
UTF8Encoding utfEncoding = new UTF8Encoding();
byte[] postData = utfEncoding.GetBytes(
postDataString);
MemoryStream postDataStream = new MemoryStream(postDataString.Length);
postDataStream.Write(postData, 0, postData.Length);
postDataStream.Seek(0, SeekOrigin.Begin);
CoreWebView2WebResourceRequest webResourceRequest =
WebViewEnvironment.CreateWebResourceRequest(
"https://www.w3schools.com/action_page.php",
"POST",
postDataStream,
"Content-Type: application/x-www-form-urlencoded\r\n");
webView.CoreWebView2.NavigateWithWebResourceRequest(webResourceRequest);
}
}