using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; namespace HH.WMS.Utils { public partial class ZFiles { public static string GetContentType(string fileName) { string contentType = "application/octetstream"; string ext = System.IO.Path.GetExtension(fileName).ToLower(); Microsoft.Win32.RegistryKey registryKey = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey(ext); if (registryKey != null && registryKey.GetValue("Content Type") != null) contentType = registryKey.GetValue("Content Type").ToString(); return contentType; } } }