private string SaveBmp(BitmapEncoder encoder, FrameworkElement element, double height, double width)
{
var outPath = getOutPath();
string extend = ".png";
if (encoder is JpegBitmapEncoder)
{
extend = ".jpg";
}
else if (encoder is BmpBitmapEncoder)
{
extend = ".bmp";
}
var savePath = outPath + "Report_" + DateTime.Now.ToString("yyyy-MM-dd HH：mm：ss：ffff") + extend;
encoder.Frames.Add(BitmapFrame.Create(CommunicationHelper.GetElementBitmap(element, height, width)));
using (Stream stm = File.Create(savePath))
{
encoder.Save(stm);
}
return(savePath);
}