Question

I’m pushing a PEM file towards my website user for download. here is the code:

try
{
    FileStream sourceFile = null;

    Response.ContentType = "application/text";
    Response.AddHeader("content-disposition", "attachment; filename=" + Path.GetFileName(RequestFilePath));
    sourceFile = new FileStream(RequestFilePath, FileMode.Open);
    long FileSize = sourceFile.Length;
    byte[] getContent = new byte[(int)FileSize];
    sourceFile.Read(getContent, 0, (int)sourceFile.Length);
    sourceFile.Close();
    Response.BinaryWrite(getContent);
}
catch (Exception exp)
{
    throw new Exception("File save error! Message:<br />" + exp.Message, exp);
}

The issue is that the file that is downloaded has the content that should be there + a copy of the whole web page’s HTML too.

Whats happening here?

Answer 1

Add this line:

Response.ClearContent();
Response.ContentType = "application/text";
...