private void ImageOpenButton_Click(object sender, RoutedEventArgs e)
        {
            HtmlCordRich.AppendText("");
            HtmlConverter htm = new HtmlConverter();

            htm.Close();
            webview.NavigateToString(WebModelingStaticClass.TestWebBrowserData);
            HtmlCordRich.AppendText(WebModelingStaticClass.TestWebBrowserData);
        }