private async void mainWindow_page_CV(object sender, System.EventArgs e)
{
WindowFoUrl windowURL = new WindowFoUrl();
windowURL.Url += new EventDelegate(set_URL);
windowURL.Show();
}
private async void set_URL(WindowFoUrl windowURL)
{
string tempUrl = windowURL.textBox.Text;
bool isUrlExist = await _helperService.IsUrlExistAsync(url);
if (isUrlExist)
{
url = tempUrl;
}
windowURL.Close();
}