I am trying to upload a file in asp.net. File may be image or pdf. If the file already exist then I have to remove existing file and upload the new file. But if I try to delete existing file, it shows an error that "The process cannot access the file because it is being used by another process"
This is the code for my file upload.
if (FileUploadFollowUpUN.HasFile)
{
if (Request.QueryString.Count > 0 && Request.QueryString["PCD"] != null)
{
filename = System.IO.Path.GetFileName(FileUploadFollowUpUN.FileName.Replace(FileUploadFollowUpUN.FileName, Request.QueryString["PCD"] + " " + "D" + Path.GetExtension(FileUploadFollowUpUN.FileName)));
SaveFilePath = Server.MapPath("~\\ECG\\") + filename;
DirectoryInfo oDirectoryInfo = new DirectoryInfo(Server.MapPath("~\\ECG\\"));
if (!oDirectoryInfo.Exists)
Directory.CreateDirectory(Server.MapPath("~\\ECG\\"));
if (File.Exists(SaveFilePath))
{
File.SetAttributes(SaveFilePath, FileAttributes.Normal);
File.Delete(SaveFilePath);
}
FileUploadFollowUpUN.SaveAs(Server.MapPath(this.UploadFolderPath) + filename);
Session["FileNameFollowUpUN"] = filename;
if (System.IO.Path.GetExtension(FileUploadFollowUpUN.FileName) == ".pdf")
{
imgPhoto.ImageUrl = "~/Images/pdf.jpg";
ZoomImage.ImageUrl = "~/Images/pdf.jpg";
imgPhoto.Enabled = true;
}
else
{
imgPhoto.ImageUrl = "~/ECG/" + filename;
imgPhoto.Enabled = true;
ZoomImage.ImageUrl = "~/ECG/" + filename;
}
}
}
How can I get rid out of this error?
There is a similar question here on how to find what process is using a file
You should try to dispose any file methods before trying to delete.
You could stick it in a while loop if you have something which will block until the file is accessible
public static bool IsFileReady(String sFilename)
{
// If the file can be opened for exclusive access it means that the file
// is no longer locked by another process.
try
{
using (FileStream inputStream = File.Open(sFilename, FileMode.Open, FileAccess.Read, FileShare.None))
{
if (inputStream.Length > 0)
{
return true;
}
else
{
return false;
}
}
}
catch (Exception)
{
return false;
}
}
Related
We have a problem where our industrial equipments software's .XML settings files become blank, yet they still have the correct number of bytes.
I have a feeling it might be caused by the way the customers are shutting down the PC as it tends to happen after they've down a shutdown, isolate, and boot. The way I save the files is,
Serialize to %temp% file
Validate that the newly created file starts with <?xml
If the /backup folders version of the file is older than a day, copy the existing file to the /backup folder
Copy new file to overwrite existing file.
I thought maybe it's related to encoding, disk caching, Windows Update, or Windows Recovery.
Looking for ideas as I've spent two years chasing down why this is happening.
As per request, here is the code.
public static bool SerializeObjXml(object Object2Serialize, string FilePath, Type type, bool gzip = false)
{
if (!Path.IsPathRooted(FilePath))
FilePath = Path.Combine(ApplicationDir, FilePath);
bool isSuccess = false;
var tmpFile = Path.GetTempFileName();
try
{
for (int i = 0; i < 3; i++)
{
try
{
Directory.CreateDirectory(Path.GetDirectoryName(FilePath));
if (gzip)
{
using (var ms = new MemoryStream())
{
XmlSerializer bf = new XmlSerializer(type);
bf.Serialize(ms, Object2Serialize);
ms.Position = 0;
using (var fileStream = new BinaryWriter(File.Open(tmpFile, FileMode.Create)))
{
using (GZipStream gzipStream = new GZipStream(fileStream.BaseStream, CompressionMode.Compress))
{
byte[] buffer = new byte[4096];
int numRead;
while ((numRead = ms.Read(buffer, 0, buffer.Length)) != 0)
{
gzipStream.Write(buffer, 0, numRead);
}
}
}
}
if (!FileChecker.isGZip(tmpFile))
throw new XmlException("Failed to write valid XML file " + FilePath);
}
else
{
using (var fs = new StreamWriter(File.Open(tmpFile, FileMode.Create), Encoding.UTF8))
{
XmlSerializer bf = new XmlSerializer(type);
bf.Serialize(fs, Object2Serialize);
}
if (!FileChecker.isXML(tmpFile))
throw new XmlException("Failed to write valid XML file " + FilePath);
}
isSuccess = true;
return true;
}
catch (XmlException)
{
return false;
}
catch (System.IO.DriveNotFoundException) { continue; }
catch (System.IO.DirectoryNotFoundException) { continue; }
catch (System.IO.FileNotFoundException) { continue; }
catch (System.IO.IOException) { continue; }
}
}
finally
{
if (isSuccess)
{
lock (FilePath)
{
try
{
//Delete existing .bak file
if (File.Exists(FilePath + ".bak"))
{
File.SetAttributes(FilePath + ".bak", FileAttributes.Normal);
File.Delete(FilePath + ".bak");
}
}
catch { }
try
{
//Make copy of file as .bak
if (File.Exists(FilePath))
{
File.SetAttributes(FilePath, FileAttributes.Normal);
File.Copy(FilePath, FilePath + ".bak", true);
}
}
catch { }
try
{
//Copy the temp file to the target
File.Copy(tmpFile, FilePath, true);
//Delete .bak file if no error
if (File.Exists(FilePath + ".bak"))
File.Delete(FilePath + ".bak");
}
catch { }
}
}
try
{
//Delete the %temp% file
if (File.Exists(tmpFile))
File.Delete(tmpFile);
}
catch { }
}
return false;
}
public static class FileChecker
{
const string gzipSig = "1F-8B-08";
static string xmlSig = "EF-BB-BF";// <?x";
public static bool isGZip(string filepath)
{
return FileChecker.CheckSignature(filepath, (3, gzipSig)) != null;
}
public static bool isXML(string filepath)
{
return FileChecker.CheckSignature(filepath, (3, xmlSig)) != null;
}
public static bool isGZipOrXML(string filepath, out bool isGZip, out bool isXML)
{
var sig = FileChecker.CheckSignature(filepath, (3, gzipSig), (3, xmlSig));
isXML = (sig == xmlSig);
isGZip = (sig == gzipSig);
return isXML || isGZip;
}
public static string CheckSignature(string filepath, params (int signatureSize, string expectedSignature)[] pairs)
{
if (String.IsNullOrEmpty(filepath))
throw new ArgumentException("Must specify a filepath");
if (String.IsNullOrEmpty(pairs[0].expectedSignature))
throw new ArgumentException("Must specify a value for the expected file signature");
int signatureSize = 0;
foreach (var pair in pairs)
if (pair.signatureSize > signatureSize)
signatureSize = pair.signatureSize;
using (FileStream fs = new FileStream(filepath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
if (fs.Length < signatureSize)
return null;
byte[] signature = new byte[signatureSize];
int bytesRequired = signatureSize;
int index = 0;
while (bytesRequired > 0)
{
int bytesRead = fs.Read(signature, index, bytesRequired);
bytesRequired -= bytesRead;
index += bytesRead;
}
foreach (var pair in pairs)
{
string actualSignature = BitConverter.ToString(signature, 0, pair.signatureSize);
if (actualSignature == pair.expectedSignature)
return actualSignature;
}
}
return null;
}
}
Using the operating system's move or copy file to overwrite an existing file is an atomic operation meaning the it wholly succeeds or doesn't and doesn't overlap other file operations.
Therefore what you have should work if that is how you are achieving step 4.
Copy new file to overwrite existing file.
If instead you are blanking out the existing file and re-writing the data I suspect that could be the the point of failure..
The issues while file space is being allocated the write is not occurring during shutdown, which leaves you when a file with bytes allocated without the data being flushed to disk.
During the OS shutdown, likely a ThreadAbortException is raised which triggers your finally block.
You can attempt to reproduce by calling Process.Start("shutdown", "-a") before your return statement but after you have set success = true.
I would suggest simplifying your code and have everything run inside of your try {} statement. This removes the possibility of having a state where success = true before your attempted your write to disk, which is then triggered in a finally statement trigged by a windows shutdown.
public static bool SerializeObjXml(
object Object2Serialize,
string FilePath,
Type type,
bool gzip = false)
{
if (!Path.IsPathRooted(FilePath))
FilePath = Path.Combine(ApplicationDir, FilePath);
Directory.CreateDirectory(FilePath);
for (int i = 0; i < 3; i++)
{
try
{
var tempFi = SerializeToXmlFile(Object2Serialize, type, gzip);
var fi = new FileInfo(FilePath);
if (fi.Exists)
fi.CopyTo(fi.FullName + ".bak", true);
tempFi.CopyTo(fi.FullName, true);
tempFi.Delete();
return true;
}
catch (Exception ex)
{
string message = $"[{DateTime.Now}] Error serializing file {FilePath}. {ex}";
File.WriteAllText(FilePath + ".log", message);
}
}
return false;
}
As a side note, you can simply use [Stream.CopyTo][1] and write directly to your temp file, without the need for intermediary streams or for manual buffer/byte read/write operations:
private static FileInfo SerializeToXmlFile(
object Object2Serialize,
Type type,
bool gzip)
{
var tmpFile = Path.GetTempFileName();
var tempFi = new FileInfo(tmpFile);
if (!gzip)
{
using (var fs = File.Open(tmpFile, FileMode.Create))
(new XmlSerializer(type)).Serialize(fs, Object2Serialize);
if (!FileChecker.isXML(tmpFile))
throw new Exception($"Failed to write valid XML file: {tmpFile}");
}
else
{
using (var fs = File.Open(tmpFile, FileMode.CreateNew))
using (var gz = new GZipStream(fs, CompressionMode.Compress))
(new XmlSerializer(type)).Serialize(fs, Object2Serialize);
if (!FileChecker.isGZip(tmpFile))
throw new Exception($"Failed to write valid XML gz file: {tmpFile}");
}
return tempFi;
}
I'm doing a c# wcf service in which I receive a bunch of images and the service merge them in a multiimage Tiff file. At the end of the service I want to delete the original files but I'm receiving an error that some other process is locking the file.
This is the code that receives the images (as a byte[] list) and write them to disk
public static List<string> SaveByteImagesToFile(List<byte[]> bytesToCopyIntoFiles, string imageReferenceType, string imageReferenceValue)
{
_applicationLogger.Debug(MethodBase.GetCurrentMethod().DeclaringType.Name, MethodBase.GetCurrentMethod().Name);
string imageFinalPath = string.Empty;
string joinImagesFilePath = string.Empty;
List<string> imagesFilePath = new List<string>();
int count = 1;
try
{
if (bytesToCopyIntoFiles.Count == 0)
{
throw new ArgumentNullException("bytesToCopyIntoFiles");
}
else
{
joinImagesFilePath = SettingsManager.GetServiceSetting(AppSettingsKeys.CopyImagesToFilePath, "NO_VALID_FILEPATH");
if (joinImagesFilePath.IsValidFilePath(out string errorMessage, true, true))
{
foreach (byte[] image in bytesToCopyIntoFiles)
{
var imageFileName = imageReferenceType + "_" + imageReferenceValue + "_" + DateTime.Now.ToString("yyyyMMddHHmmssfff") + count.ToString();
imageFinalPath = joinImagesFilePath + Path.DirectorySeparatorChar + imageFileName + ".tiff";
using (FileStream stream = new FileStream(imageFinalPath, FileMode.Create, FileAccess.ReadWrite))
{
stream.Write(image, 0, image.Length);
stream.Flush();
}
imagesFilePath.Add(imageFinalPath);
count++;
}
}
else
{
exceptionMessageType = MainRepository.GetExceptionMessage("E171");
throw new IOException(exceptionMessageType.ExceptionMessage + " " + errorMessage);
}
}
return imagesFilePath;
}
catch
{
throw;
}
}
How or what can I use to prevent the service or any process to lock the file. As you can see I'm using the using scope for filestream without any luck.
Any ideas? Thanks
Resolved! By organizing the files in a certain order, when creating the multipage tiff, by the time the logic ends the worker already unlock the resources and I'm able now to delete them without any issue.
So I got the IOException: Attempted to Seek before the beginning of the stream. But when I looked into it the seek statement was inside of a using statement. I might be missunderstanding the using() because as far as I knew this initializes the in this case filestream before running the encased code.
private string saveLocation = string.Empty;
// This gets called inside the UI to visualize the save location
public string SaveLocation
{
get
{
if (string.IsNullOrEmpty(saveLocation))
{
saveLocation = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) + #"\Pastes";
Initializer();
}
return saveLocation;
}
set { saveLocation = value; }
}
And this is the function it calls
private void Initializer()
{
// Check if the set save location exists
if (!Directory.Exists(saveLocation))
{
Debug.Log("Save location did not exist");
try
{
Directory.CreateDirectory(saveLocation);
}
catch (Exception e)
{
Debug.Log("Failed to create Directory: " + e);
return;
}
}
// Get executing assembly
if (string.IsNullOrEmpty(executingAssembly))
{
string codeBase = Assembly.GetExecutingAssembly().CodeBase;
UriBuilder uri = new UriBuilder(codeBase);
executingAssembly = Uri.UnescapeDataString(uri.Path);
}
// Get the last received list
if (!string.IsNullOrEmpty(executingAssembly))
{
var parent = Directory.GetParent(executingAssembly);
if (!File.Exists(parent + #"\ReceivedPastes.txt"))
{
// empty using to create file, so we don't have to clean up behind ourselfs.
using (FileStream fs = new FileStream(parent + #"\ReceivedPastes.txt", FileMode.CreateNew)) { }
}
else
{
using (FileStream fs = new FileStream(parent + #"\ReceivedPastes.txt", FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
if (fs.Seek(-20000, SeekOrigin.End) >= 0)
{
fs.Position = fs.Seek(-20000, SeekOrigin.End);
}
using (StreamReader sr = new StreamReader(fs))
{
while (sr.ReadLine() != null)
{
storedPastes.Add(sr.ReadLine());
}
}
}
}
}
isInitialized = true;
}
Are the commentors have posted: the file is less than 20000 bytes. It seems like you assume that Seek will stay at position 0 if the file is not large enough. It doesn't. It throws ArgumentException in that case.
Another thing. Seek will move the position for you. No need to do both. Either use:
fs.Seek(-20000, SeekOrigin.End);
or set the position:
fs.Position = fs.Length - 20000;
So what you really wanted to write is:
if (fs.Length > 20000)
fs.Seek(-20000, SeekOrigin.End);
I'm trying to extract an ISO to a folder with the same name without .iso on the end.
I'm having a problem with winrar as it will not start the extract when I start up with the seach starting in the folder with the ISO.
UPDATED with answer code
private void ExtractISO(string toExtract, string folderName)
{
// reads the ISO
CDReader Reader = new CDReader(File.Open(toExtract, FileMode.Open), true);
// passes the root directory the folder name and the folder to extract
ExtractDirectory(Reader.Root, folderName /*+ Path.GetFileNameWithoutExtension(toExtract)*/ + "\\", "");
// clears reader and frees memory
Reader.Dispose();
}
private void ExtractDirectory(DiscDirectoryInfo Dinfo, string RootPath, string PathinISO)
{
if (!string.IsNullOrWhiteSpace(PathinISO))
{
PathinISO += "\\" + Dinfo.Name;
}
RootPath += "\\" + Dinfo.Name;
AppendDirectory(RootPath);
foreach (DiscDirectoryInfo dinfo in Dinfo.GetDirectories())
{
ExtractDirectory(dinfo, RootPath, PathinISO);
}
foreach (DiscFileInfo finfo in Dinfo.GetFiles())
{
using (Stream FileStr = finfo.OpenRead())
{
using (FileStream Fs = File.Create(RootPath + "\\" + finfo.Name)) // Here you can Set the BufferSize Also e.g. File.Create(RootPath + "\\" + finfo.Name, 4 * 1024)
{
FileStr.CopyTo(Fs, 4 * 1024); // Buffer Size is 4 * 1024 but you can modify it in your code as per your need
}
}
}
}
static void AppendDirectory(string path)
{
try
{
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
}
catch (DirectoryNotFoundException Ex)
{
AppendDirectory(Path.GetDirectoryName(path));
}
catch (PathTooLongException Ex)
{
AppendDirectory(Path.GetDirectoryName(path));
}
}
The user selects the folder to extract (.ISO) toExtract. I then use it in the Process.Start() in the background worker. That just seems to open the mounting software and doesn't extract the ISO to the desired folder name.
Thanks in advance for your help.
Or if anyone could give me a batch to extract the ISO instead and to call it from c# passing toExtract and the folder name that would be helpful too.
Thanks
If external Class Libraries are OK!
Then use SevenZipSharp or .NET DiscUtils to extract ISO's...
These two ClassLibraries can manage ISO and Extract them!
For DiscUtils you can find some codes for ISO Management [CDReader Class] at the Link I provided.
But For SevenZipSharp, Please Explore the ClassLibrary source and find the Code to Extract or Google to find it!
To get the Name of the folder just use Path.GetFileNameWithoutExtension((string)ISOFileName) which will return "ISOFile" for an iso named "ISOFile.iso". And then you can use it with your desired path.
UPDATE
Code To Extract ISO Image with DiscUtils :
using DiscUtils;
using DiscUtils.Iso9660;
void ExtractISO(string ISOName, string ExtractionPath)
{
using (FileStream ISOStream = File.Open(ISOName, FileMode.Open))
{
CDReader Reader = new CDReader(ISOStream, true, true);
ExtractDirectory(Reader.Root, ExtractionPath + Path.GetFileNameWithoutExtension(ISOName) + "\\", "");
Reader.Dispose();
}
}
void ExtractDirectory(DiscDirectoryInfo Dinfo, string RootPath, string PathinISO)
{
if (!string.IsNullOrWhiteSpace(PathinISO))
{
PathinISO += "\\" + Dinfo.Name;
}
RootPath += "\\" + Dinfo.Name;
AppendDirectory(RootPath);
foreach (DiscDirectoryInfo dinfo in Dinfo.GetDirectories())
{
ExtractDirectory(dinfo, RootPath, PathinISO);
}
foreach (DiscFileInfo finfo in Dinfo.GetFiles())
{
using (Stream FileStr = finfo.OpenRead())
{
using (FileStream Fs = File.Create(RootPath + "\\" + finfo.Name)) // Here you can Set the BufferSize Also e.g. File.Create(RootPath + "\\" + finfo.Name, 4 * 1024)
{
FileStr.CopyTo(Fs, 4 * 1024); // Buffer Size is 4 * 1024 but you can modify it in your code as per your need
}
}
}
}
static void AppendDirectory(string path)
{
try
{
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
}
catch (DirectoryNotFoundException Ex)
{
AppendDirectory(Path.GetDirectoryName(path));
}
catch (PathTooLongException Exx)
{
AppendDirectory(Path.GetDirectoryName(path));
}
}
Use It with Like This :
ExtractISO(ISOFileName, Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) + "\\");
Working! Tested By Me!
And Of Course You can always add more Optimization to the code...
This Code is Just a Basic One!
For UDF or for making Windows ISO Files after servicing(DISM) with out needs the above accepted answer is not working for me so i tried this working method with DiscUtils
using DiscUtils;
public static void ReadIsoFile(string sIsoFile, string sDestinationRootPath)
{
Stream streamIsoFile = null;
try
{
streamIsoFile = new FileStream(sIsoFile, FileMode.Open);
DiscUtils.FileSystemInfo[] fsia = FileSystemManager.DetectDefaultFileSystems(streamIsoFile);
if (fsia.Length < 1)
{
MessageBox.Show("No valid disc file system detected.");
}
else
{
DiscFileSystem dfs = fsia[0].Open(streamIsoFile);
ReadIsoFolder(dfs, #"", sDestinationRootPath);
return;
}
}
finally
{
if (streamIsoFile != null)
{
streamIsoFile.Close();
}
}
}
public static void ReadIsoFolder(DiscFileSystem cdReader, string sIsoPath, string sDestinationRootPath)
{
try
{
string[] saFiles = cdReader.GetFiles(sIsoPath);
foreach (string sFile in saFiles)
{
DiscFileInfo dfiIso = cdReader.GetFileInfo(sFile);
string sDestinationPath = Path.Combine(sDestinationRootPath, dfiIso.DirectoryName.Substring(0, dfiIso.DirectoryName.Length - 1));
if (!Directory.Exists(sDestinationPath))
{
Directory.CreateDirectory(sDestinationPath);
}
string sDestinationFile = Path.Combine(sDestinationPath, dfiIso.Name);
SparseStream streamIsoFile = cdReader.OpenFile(sFile, FileMode.Open);
FileStream fsDest = new FileStream(sDestinationFile, FileMode.Create);
byte[] baData = new byte[0x4000];
while (true)
{
int nReadCount = streamIsoFile.Read(baData, 0, baData.Length);
if (nReadCount < 1)
{
break;
}
else
{
fsDest.Write(baData, 0, nReadCount);
}
}
streamIsoFile.Close();
fsDest.Close();
}
string[] saDirectories = cdReader.GetDirectories(sIsoPath);
foreach (string sDirectory in saDirectories)
{
ReadIsoFolder(cdReader, sDirectory, sDestinationRootPath);
}
return;
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
it has extracted from a application source ISOReader but modified for my requirements
total source is available at http://www.java2s.com/Open-Source/CSharp_Free_CodeDownload/i/isoreader.zip
Try this:
string Desktop = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
Process.Start("Winrar.exe", string.Format("x {0} {1}",
Desktop + "\\test.rar",
Desktop + "\\SomeFolder"));
That would extract the file test.rar to the folder SomeFolder. You can change the .rar extention to .iso, it'll work the same.
As far as I can see in your current code, there is no command given to extract a file, and no path to the file that has to be extracted. Try this example and let me know if it works =]
P.S. If you'd like to hide the extracting screen, you can set the YourProcessInfo.WindowStyle to ProcessWindowStyle.Hidden.
I hace confrunted recently with this kind of .iso extraction issue. After trying several methods, 7zip did the job for me, you just have to make sure that the latest version of 7zip is installed on your system. Maybe it will help
try
{
Process cmd = new Process();
cmd.StartInfo.FileName = "cmd.exe";
cmd.StartInfo.RedirectStandardInput = true;
cmd.StartInfo.RedirectStandardOutput = true;
cmd.StartInfo.CreateNoWindow = false;
cmd.StartInfo.UseShellExecute = false;
cmd.StartInfo.WindowStyle = ProcessWindowStyle.Normal;
cmd.Start();
cmd.StandardInput.WriteLine("C:");
//Console.WriteLine(cmd.StandardOutput.Read());
cmd.StandardInput.Flush();
cmd.StandardInput.WriteLine("cd C:\\\"Program Files\"\\7-Zip\\");
//Console.WriteLine(cmd.StandardOutput.ReadToEnd());
cmd.StandardInput.Flush();
cmd.StandardInput.WriteLine(string.Format("7z x -y -o{0} {1}", source, copyISOLocation.TempIsoPath));
//Console.WriteLine(cmd.StandardOutput.ReadToEnd());
cmd.StandardInput.Flush();
cmd.StandardInput.Close();
cmd.WaitForExit();
Console.WriteLine(cmd.StandardOutput.ReadToEnd());
}
catch (Exception e)
{
Console.WriteLine(e.Message + "\n" + e.StackTrace);
if (e.InnerException != null)
{
Console.WriteLine(e.InnerException.Message + "\n" + e.InnerException.StackTrace);
}
}
I want to convert a zip file to MSI file/EXE file/windows installation file to install in remote computers in the network.
Up to now, I can make a zip file with user selected executable files and related support files etc. using the following C# code.
private void btnPackaging_Click(object sender, EventArgs e)
{
// make sure there are files to zip
if (listBox1.Items.Count < 1)
{
MessageBox.Show("There are no files queued for the zip operation", "Empty File Set");
return;
}
// make sure there is a destination defined
if (textBox1.Text == string.Empty)
{
MessageBox.Show("No destination file has been defined.", "Save To Empty");
return;
}
label3.Visible = true;
label3.Refresh();
// name the zip file whatever the folder is named
// by splitting the file path to get the folder name
string[] sTemp = textBox1.Text.Split('\\');
string sZipFileName = sTemp[sTemp.Length - 1].ToString();
// check to see if zipped file already exists
// user may rename it in the text box if it does.
FileInfo fi = new FileInfo(textBox1.Text + "\\" + sZipFileName + ".zip");
if (fi.Exists)
{
// move it to the folder
try
{
StringBuilder sb = new StringBuilder();
sb.Append("The file " + sZipFileName + " already exists. ");
sb.Append("You may rename it in the save to text box.");
MessageBox.Show(sb.ToString(), "Existing File Name");
textBox1.Focus();
return;
}
catch
{
MessageBox.Show("Rename the file or select a new location.", "File Error");
return;
}
}
// Check for the existence of the target folder and
// create it if it does not exist
if (!System.IO.Directory.Exists(textBox1.Text + "\\TempZipFile\\"))
{
System.IO.Directory.CreateDirectory(textBox1.Text + "\\TempZipFile\\");
}
// Set up a string to hold the path to the temp folder
string sTargetFolderPath = (textBox1.Text + "\\TempZipFile\\");
// Process the files and move each into the target folder
for (int i = 0; i < listBox1.Items.Count; i++)
{
string filePath = listBox1.Items[i].ToString();
FileInfo fi2 = new FileInfo(filePath);
if (fi2.Exists)
{
// move it to the folder
try
{
fi2.CopyTo(sTargetFolderPath + fi2.Name, true);
}
catch
{
// clean up if the operation failed
System.IO.Directory.Delete(sTargetFolderPath);
MessageBox.Show("Could not copy files to temp folder.", "File Error");
return;
}
}
}
// zip up the files
try
{
label3.Visible = true;
label3.Refresh();
string[] filenames = Directory.GetFiles(sTargetFolderPath);
// Zip up the files - From SharpZipLib Demo Code
using (ZipOutputStream s = new ZipOutputStream(File.Create(textBox1.Text + "\\" + sZipFileName + ".zip")))
{
s.SetLevel(9); // 0-9, 9 being the highest level of compression
byte[] buffer = new byte[4096];
foreach (string file in filenames)
{
ZipEntry entry = new ZipEntry(Path.GetFileName(file));
entry.DateTime = DateTime.Now;
s.PutNextEntry(entry);
using (FileStream fs = File.OpenRead(file))
{
int sourceBytes;
do
{
sourceBytes = fs.Read(buffer, 0, buffer.Length);
s.Write(buffer, 0, sourceBytes);
} while (sourceBytes > 0);
}
}
s.Finish();
s.Close();
}
// remove the progress bar
label3.Visible = false;
// clean up files by deleting the temp folder and its content
System.IO.Directory.Delete(textBox1.Text + "\\TempZipFile\\", true);
// Notify user
MessageBox.Show("Zip file " + textBox1.Text + " created.");
// empty everything
listBox1.Items.Clear();
textBox1.Text = string.Empty;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString(), "Zip Operation Error");
}
this.Dispose();
}
I don't have any idea, how to develop C# code to convert zip file into MSI file/EXE file/windows installation file.
Please help me, if anybody have an idea to solve this.
Thanks in Advance.