How to remove folder path in zip file - asp.net

Question

I am generating the zip file from this folder "D:\Nagaraj\Dotnet\Zipfile\Zipfile\Filebuild\Hi" within that "Hi" folder has 2 txt files. .....yes Now generating the Hi.zip file.But problem is Within that zip file has this particular path "D:\Nagaraj\Dotnet\Zipfile\Zipfile\Filebuild\Hi" and within that hi folder has 2 txt fils. Now I need to remove this path "D:\Nagaraj\Dotnet\Zipfile\Zipfile\Filebuild\Hi" and directly generate that Hi.zip file and within that 2 txt file......thanks ....in advance
I am using sharpziplib library enter code here
protected void Page_Load(object sender, EventArgs e)
{
StartZip("D:/Nagaraj/Dotnet/Zipfile/Zipfile/Filebuild/Hi",".zip");
}
public void StartZip(string directory, string zipFileName)
{
ZipFile z = ZipFile.Create(directory + zipFileName);
z.BeginUpdate();
string[] filenames = Directory.GetFiles(directory);
foreach (string filename in filenames)
{
z.Add(filename);
}
z.CommitUpdate();
z.Close();
}

Answer 1

From the help file, where you add your files, you say how to do you like to show inside the zip.
public void StartZip(string directory, string zipFileName)
{
using(ZipFile z = ZipFile.Create(directory + zipFileName))
{
z.BeginUpdate();
// Create a reference to the directory.
DirectoryInfo di = new DirectoryInfo(directory);
// Create an array representing the files in the current directory.
FileInfo[] fi = di.GetFiles();
// here the entryName is the name that you like to show inside zip
foreach (FileInfo fiTemp in fi)
z.Add(fiTemp.FullName, fiTemp.Name);
z.CommitUpdate();
z.Close();
}
}