sanlu_new/sanlu_c#/client/AppUpdater/Microsoft.Samples.AppUpdater/ServerManifest.cs

using System;
using System.IO;
using System.Xml;

namespace Microsoft.Samples.AppUpdater
{
	public class ServerManifest
	{
		private XmlDocument _manifest;

		private string _url;

		private string _AvailableVersion;

		private string _ApplicationUrl;

		public string AvailableVersion
		{
			get
			{
				return _AvailableVersion;
			}
			set
			{
				_AvailableVersion = value;
			}
		}

		public string ApplicationUrl
		{
			get
			{
				return _ApplicationUrl;
			}
			set
			{
				_ApplicationUrl = value;
			}
		}

		public DateTime LastModTime => WebFileLoader.GetLastModTime(_url);

		public void Load(string url)
		{
			_url = url;
			string text = AppDomain.CurrentDomain.BaseDirectory + Path.GetFileName(new Uri(_url).LocalPath);
			WebFileLoader.UpdateFile(_url, text);
			_manifest = new XmlDocument();
			_manifest.Load(text);
			ApplicationUrl = _manifest.GetElementsByTagName("ApplicationUrl")[0].InnerText;
			ApplicationUrl = ApplicationUrl.Replace("[DownLoadURL]", url.Replace("/UpdateVersion.xml", ""));
			AvailableVersion = _manifest.GetElementsByTagName("AvailableVersion")[0].InnerText;
		}

		public bool IsServerVersionNewer(Version currentVersion)
		{
			Version v = new Version(AvailableVersion);
			if (v > currentVersion)
			{
				return true;
			}
			return false;
		}
	}
}