Fixing Header Manipulation issue in Fortify in Respon.AddHeader C#.NET

When Fortify Scaning a code like :

string FILENAME = "NameOfFile";
Response.AddHeader("Content-Disposition","attachment, filename=" + FILENAME);

Fortify will notificate there is an issue called Header Manipulation.

To fix this issue, first you have to call System.Net.Mime in the top of your code:

using System.Net.Mime;

And Modified the code like this :

string FILENAME = "NameOfFile";
var contentDispositionHeader = new ContentDisposision() {FileName = FILENAME};
Response.AddHeader("Content-Disposition", contentDispositionHeader .ToString());