how to uncompress zip file into a text extension [duplicate]

This question already has answers here: Closed 11 years ago.

Possible Duplicates:

how to read a *.file

how to compress and uncompress a text file

Hi,

I am having a problem in uncompressing the zip file into a text file,

when i compress the text file into a zip file (Ex-20110530.txt to 20110530.zip) .my code is compressing the code i use for compressing the text file to a zip file is

       string path = (string)(Application.StartupPath + "\\TEMP\\TEMP_BACKFILL_atoz" + "\\" + name_atoz);
       StreamWriter Strwriter = new StreamWriter(path);
       DirectoryInfo di = new DirectoryInfo(path);
       FileInfo fi = new FileInfo(path);
       Compress(fi);

public static void Compress(FileInfo fi) 
{ 
    // Get the stream of the source file. 
    using (FileStream inFile = fi.OpenRead()) 
    {

        // Prevent compressing hidden and already compressed files. 
        if ((File.GetAttributes(fi.FullName) & FileAttributes.Hidden) 
                != FileAttributes.Hidden & fi.Name != ".zip") 
        { 
            // Create the compressed file. 
           using (FileStream outFile = File.Create(System.Text.RegularExpressions.Regex.Replace(fi.FullName, ".txt$", "") + ".zip"))

            { 
                using (GZipStream Compress = new GZipStream(outFile, 
                        CompressionMode.Compress)) 
                { 
                    // Copy the source file into the compression stream. 
                    byte[] buffer = new byte[4096]; 
                    int numRead; 
                    while ((numRead = inFile.Read(buffer, 0, buffer.Length)) != 0) 
                    { 
                        Compress.Write(buffer, 0, numRead); 
                    } 
                    Console.WriteLine("Compressed 开发者_运维知识库{0} from {1} to {2} bytes.", 
                        fi.Name, fi.Length.ToString(), outFile.Length.ToString()); 
                } 
            } 
        } 
    } 
} 

this code creates a zip file when i unzip the file it creates a file called 20110530 not a 20110530.txt .

I want the file to be uncompress with 20110530.txt format

the code i use to uncompress the file is

    public static void Decompress(FileInfo fi)
    {
        // Get the stream of the source file. 
        using (FileStream inFile = fi.OpenRead())
        {
            // Get original file extension, for example "doc" from report.doc.gz. 
            string curFile = fi.FullName;
            string origName = curFile.Remove(curFile.Length - fi.Extension.Length);

            //Create the decompressed file. 
            using (FileStream outFile = File.Create(origName))
            {
                using (GZipStream Decompress = new GZipStream(inFile,
                        CompressionMode.Decompress))
                {
                    //Copy the decompression stream into the output file. 
                    byte[] buffer = new byte[4096];
                    int numRead;
                    while ((numRead = Decompress.Read(buffer, 0, buffer.Length)) != 0)
                    {
                        outFile.Write(buffer, 0, numRead);
                    }
                    Console.WriteLine("Decompressed: {0}", fi.Name);

                }
            }
        }
    } 

Can Anyone Pls Help Me,

Thanks In Advance.

---

Seems to me that this line:

string origName = curFile.Remove(curFile.Length - fi.Extension.Length);

Removes the extension from the string, but you use that line when creating the uncompressed stream.

using (FileStream outFile = File.Create(origName))

Instead, use this:

using (FileStream outFile = File.Create(origName + ".txt"))

and that should create the uncompressed file with a TXT extension.

---

That is because you remove the extension when you compress the file so that it becomes 20110530.zip instead of 20110530.txt.zip. The code that decompresses the file uses everything before .zip as file name, so naturally you end up with 20110530 instead of 20110530.txt.

---

Make sure to include the original file extension when you create a file in Decompress

//Create the decompressed file. 
using (FileStream outFile = File.Create(origName)) // <<<-- here