public static string GetContentTypeBuf(this DigitalSignViewer source, byte[] buf)
{
enumContentTypeEx docType;
string pDocExt = null;
source.GetContentTypeBuf(buf, out docType, out pDocExt);
if (pDocExt.IsNullOrWhiteSpace())
{
throw new InvalidOperationException("Non รจ stato possibile identificare il contenuto.");
}
return(pDocExt);
}
public static string GetContentTypeBuf(this DigitalSignViewer source, IContent contentInfo)
{
return(source.GetContentTypeBuf(contentInfo.Content));
}