WP7上如何将数据用zip压缩和解压缩
SharpZipLib中的zip压缩都是将文件进行压缩和解压缩（文件在压缩包中有一个entry），如何直接将内存中的数据进行zip压缩呢（不需要entry）？
[解决办法]
直接流操作的吧，没用过sharpXXX，能移植个zlib更好
[解决办法]
public static bool UnZip(Stream zipfilestren, string directoryName, string password,string strTotal)
{
bool ret = true;
try
{
IsolatedStorageFile file = IsolatedStorageFile.GetUserStoreForApplication();

{
ZipInputStream s = new ZipInputStream(zipfilestren);

if (password != null && password.Length > 0)
s.Password = password;

BinaryReader reader = new BinaryReader(s);
ZipEntry theEntry;
long sizezip = 0;

while ((theEntry = s.GetNextEntry()) != null)
{
string fileName = theEntry.Name;
if (fileName != String.Empty)
{
if (theEntry.CompressedSize == 0)
continue;
if (!theEntry.IsFile)
{

continue;
}
else if (!theEntry.IsCompressionMethodSupported())
{
continue;
}
else if (!theEntry.CanDecompress)
{
continue;
}

String fullFileName = directoryName + "/" + fileName;

//String path = fullFileName.Substring(0, fullFileName.LastIndexOf(PathSeperater));
if (!file.DirectoryExists(directoryName))
{
file.CreateDirectory(directoryName);
}
using (IsolatedStorageFileStream stream = file.CreateFile(fullFileName))
{
BinaryWriter writer = new BinaryWriter(stream);

int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = reader.Read(data, 0, data.Length);
sizezip += size;
if (size > 0)
{ writer.Write(data, 0, size); }
else
{ break; }
}

writer.Close();
stream.Close();
double dvalue = (double)(sizezip / 1024);
dvalue /= 1024;
double dtotal = Double.Parse(strTotal);
dvalue /= (2*dtotal);

App.model[0].ProbarValue = Convert.ToInt32(dvalue*100);//绑定的进度条的值
App.model[0].ProbarCount = Convert.ToInt32(dvalue * 100) + "%";//绑定进度条%比
}

}
}

s.Close();
}

}
catch (Exception ex)
{
ret = false;
}
return ret;
}


这是本人项目中用的解压代码，我现在问题是解压时，界面卡住并且根据文件大小耗时比较严重

压缩用 : ZipOutputStream s = new ZipOutputStream(File.Open(ZipedFileName, FileMode.OpenOrCreate)); 我这里只用解压，压缩没有仔细看