private async Task <Rectangle> PrepareWebViewForPrintingAsync()
{
var widthString = await _webView.InvokeScriptAsync("eval", new[] { "document.body.scrollWidth.toString()" });
int contentWidth;
if (!int.TryParse(widthString, out contentWidth))
{
throw new Exception(string.Format("failure/width:{0}", widthString));
}
_webView.Width = contentWidth;
// resize height to content
var heightString = await _webView.InvokeScriptAsync("eval", new[] { "document.body.scrollHeight.toString()" });
int contentHeight;
if (!int.TryParse(heightString, out contentHeight))
{
throw new Exception(string.Format("failure/height:{0}", heightString));
}
_webView.Height = contentHeight;
WebViewBrush brush = new WebViewBrush();
brush.SetSource(_webView);
brush.Stretch = Stretch.Uniform;
brush.Redraw();
// Send to printer
var rect = new Rectangle
{
Fill = brush,
Width = contentWidth,
Height = contentHeight
};
return(rect);
}
private void MakePage()
{
var brush = new WebViewBrush
{
Stretch = (Windows.UI.Xaml.Media.Stretch)Windows.UI.Xaml.Media.Stretch.Uniform
};
brush.SetSource(ViewToPrint);
brush.Redraw();
rectangle.Width = 800;
rectangle.Height = 800;
rectangle.Fill = brush;
brush.Stretch = (Windows.UI.Xaml.Media.Stretch)Windows.UI.Xaml.Media.Stretch.UniformToFill;
brush.AlignmentY = AlignmentY.Top;
brush.AlignmentX = AlignmentX.Left;
rectangle.Name = "MyWebViewRectangle";
rectangle.Visibility = Windows.UI.Xaml.Visibility.Visible;
}