How to download exported from sql database multiple text files with open and save dailogue box

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C#

ASP.NET

LINQ

Hi,

I have written a program to generate two text files i.e to export data from sql server database to these Text files.But the problem is I am able to open only one text file.
But I want to download the two text files.

My code is below:

Response.Clear();

if (!Directory.Exists(Path.GetDirectoryName(HttpContext.Current.Request.PhysicalApplicationPath.ToString()) + "\\Files ))
{
    Directory.CreateDirectory(Path.GetDirectoryName(HttpContext.Current.Request.PhysicalApplicationPath.ToString()) + "\\Files );
}

DirectoryInfo directory = new DirectoryInfo(Path.GetDirectoryName(HttpContext.Current.Request.PhysicalApplicationPath.ToString()) + "\\Files\\"  );

string file_name = directory + "filename" + ".txt";


System.IO.FileInfo file = new System.IO.FileInfo(file_name);
Response.AddHeader("Content-Disposition", "attachment; filename=" + strfilename );
Response.AddHeader("Content-Length", file.Length.ToString());
Response.ContentType = "application/octet-stream";
Response.WriteFile(file.FullName);
Response.End();
Response.Redirect("");

Thanks in advance.