Unzip Encrypted Text into a String Variable

Demonstrates how to open an encrypted .zip archive and unzip a text file directly into a string variable.

Download: Chilkat .NET Assemblies

Chilkat.Zip zip = new Chilkat.Zip();

bool success;

//  Any string unlocks the component for the 1st 30-days.
success = zip.UnlockComponent("Anything for 30-day trial");
if (success != true) {
    MessageBox.Show(zip.LastErrorText);
    return;
}

//  Set the password required for decrypting.
zip.DecryptPassword = "myPassword";

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

//  Locate the file within the Zip to be unzipped into a string variable:
Chilkat.ZipEntry entry = null;
entry = zip.FirstMatchingEntry("*.csv");
if (!(entry == null )) {

    //  There are a few different InflateToString methods.
    //  InflateToString allows you to control line-endings LF-only vs. CRLF
    //  InflateToString2 returns the line-endings unmodified.
    //  Both InflateToString and InflateToString2 assume the
    //  data consists of ANSI characters.
    //  The InflateToString3 method allows for text stored in different
    //  character encodings to be returned as a string

    //  This example uses InflateToString2 -- line endings are
    //  unmodified and the text is simple ANSI...
    string strCsv;
    strCsv = entry.InflateToString2();
    textBox1.Text += strCsv + "\r\n";

}
else {
    textBox1.Text += "No matching entry found!" + "\r\n";
}