如何在 C# 中將 Zip 存檔提取到目錄

Extract the ZIP File to the Specified Directory

internal class Program
{
    static void Main(string[] args)
    {
        IronZipArchive.ExtractArchiveToDirectory("Contracts.zip", "Contracts");
    }
}

internal class Program
{
    static void Main(string[] args)
    {
        IronZipArchive.ExtractArchiveToDirectory("Contracts.zip", "Contracts");
    }
}

Friend Class Program
	Shared Sub Main(ByVal args() As String)
		IronZipArchive.ExtractArchiveToDirectory("Contracts.zip", "Contracts")
	End Sub
End Class

Extract Password-Protected ZIP Archive

IronZIP also provides a method to extract password-protected compressed files. The following example will extract the files from a password-protected ZIP file.

IronZipArchive.ExtractArchiveToDirectory("PasswordProtectedContracts.zip", "Contracts", "Pa55w0r2Zip");

IronZipArchive.ExtractArchiveToDirectory("PasswordProtectedContracts.zip", "Contracts", "Pa55w0r2Zip");

IronZipArchive.ExtractArchiveToDirectory("PasswordProtectedContracts.zip", "Contracts", "Pa55w0r2Zip")

The above code extracts the contents of a password-protected ZIP file named “PasswordProtectedContracts.zip” and places them in a directory called “Contracts.” The specified password ensures secure extraction of the protected ZIP file.

View Entries of the ZIP Archive

The following code example will access the existing ZIP file and print its entries to the console.

using (var zipArchive = new IronZipArchive("Contracts.zip"))
{
    // Get Entries list
    List<string> names = zipArchive.GetArchiveEntryNames();
    foreach (string name in names)
    {
        Console.WriteLine(name); // Print the name of each entry
    }
}

using (var zipArchive = new IronZipArchive("Contracts.zip"))
{
    // Get Entries list
    List<string> names = zipArchive.GetArchiveEntryNames();
    foreach (string name in names)
    {
        Console.WriteLine(name); // Print the name of each entry
    }
}

Using zipArchive = New IronZipArchive("Contracts.zip")
	' Get Entries list
	Dim names As List(Of String) = zipArchive.GetArchiveEntryNames()
	For Each name As String In names
		Console.WriteLine(name) ' Print the name of each entry
	Next name
End Using

The above code uses IronZIP to check out what's inside a ZIP file named "Contracts.zip." It creates an IronZipArchive object to grab a list of entry names (like file names) from the archive using the GetArchiveEntryNames method. If the ZIP file is password-protected, you can include the password when making the IronZipArchive object. The code then prints out each file name to the console.

This way, we can work with specified entries within a compressed archive.

The output is as follows:

Check if Specified Entry Exists in ZIP File

We can also check if the specified entry exists in the specified ZIP file. The following code shows the demonstration.

using (var zipArchive = new IronZipArchive("Contracts.zip"))
{
    if (zipArchive.CheckArchiveEntryExist("Contract1.pdf"))
    {
        Console.WriteLine("File Exist");
    }
}

using (var zipArchive = new IronZipArchive("Contracts.zip"))
{
    if (zipArchive.CheckArchiveEntryExist("Contract1.pdf"))
    {
        Console.WriteLine("File Exist");
    }
}

Using zipArchive = New IronZipArchive("Contracts.zip")
	If zipArchive.CheckArchiveEntryExist("Contract1.pdf") Then
		Console.WriteLine("File Exist")
	End If
End Using

The above code uses the IronZIP library to check if a file named "Contracts.zip" contains an entry named "Contract1.pdf." It does this by creating an IronZipArchive object for the ZIP file. Inside the code block, there's an "if" statement checking if "Contract1.pdf" exists in the ZIP file. If it does, it prints "File Exist" to the console. In simpler terms, this code helps you confirm if a specific file is inside a ZIP file, and if it is, it lets you know.

Delete Entry from Existing ZIP File

IronZIP provides a method to delete entries from a ZIP file. The following code will delete a file from an existing ZIP.

using (var zipArchive = new IronZipArchive("Contracts.zip"))
{
    zipArchive.DeleteArchiveEntry("Contract1.pdf");
}

using (var zipArchive = new IronZipArchive("Contracts.zip"))
{
    zipArchive.DeleteArchiveEntry("Contract1.pdf");
}

Using zipArchive = New IronZipArchive("Contracts.zip")
	zipArchive.DeleteArchiveEntry("Contract1.pdf")
End Using

The above code demonstrates how to use IronZIP to delete an entry from a ZIP archive named “Contracts.zip.” Within the using block, the specified file named “Contract1.pdf” is removed from the archive. This operation ensures efficient management of ZIP files in C# applications.