Unzip a Zip file

Download Chilkat .NET for 2.0 Framework

Download Chilkat .NET for 1.0 / 1.1 Framework

C# source code to unzip a Zip file.

// How to unzip a Zip file.
private void button1_Click(object sender, System.EventArgs e)
{
	Chilkat.Zip zip = new Chilkat.Zip();

	// Anything begins the 30-day trial
	bool unlocked = zip.UnlockComponent("30-day trial");
	if (!unlocked)
	{
		MessageBox.Show(zip.LastErrorText);
		return;
	}

	bool success = zip.OpenZip("tree.zip");
	if (!success)
	{
		MessageBox.Show(zip.LastErrorText);
		return;
	}

	// Unzip to a new directory ("tree") to be created under the
	// current working directory.  Unzip returns the number of
	// files and directories created.
	long count = zip.Unzip("tree");
	if (count == -1)
	{
		MessageBox.Show(zip.LastErrorText);
	}
	else
	{
		MessageBox.Show("Unzipped!");
	}


}