| Can you clarify in what way you understand that documents are not removed from the memory?
1. After solution run (two projects:asp.net, silverlight app) Instance of IE 9 at task manager shows 60-62 mb of memory usage.
2. When I download a first pdf from a server side to telerik pdf control, the memory usage increase to nearly 70-75 mb ( exact size of upload file - 1 mb).
3. When I download another pdf file from server, the memory usage increases up to 200 mb. (though pdf file size is about 2 mb). (It`s consist of images inserted inside a pdf file)
I`ve attached 3 pics which show memory usage.
1. 0 pdf files download from server
2. 1 pdf files download from server
3. 2 pdf files download from server
The code of server side which sends file in chunks by bytes. (Code of client side I published in my first post. )
using System;
using System.IO;
using System.Linq;
namespace ATZO.Web.Files
{
public partial class FileView : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
var doc = Page.Request.QueryString["docId"];
// some check logic
if (doc == null)
{
}
var DocumentId= long.Parse(doc);
Response.ContentType = "application/pdf";
Response.AddHeader("Pragma", "no-cache");
var doc = new document();
//get document from database
using (var dbConnect= new DBConnect())
{
doc= dbConnect.reg_document.SingleOrDefault(_=> _.DocId == DocumentId);
}
int BufferSize = 8000;
var fileBytes = doc.fileDATA;
try
{
long fileSize = fileBytes.Length;
int chunkLength = 0;
int position = 0;
var chunk = new Byte[BufferSize];
//count of bytes left to transmit
var bytesLeftToTransmit = fileSize;
while (bytesLeftToTransmit > 0)
{
chunkLength = fileBytes.Skip(position).Take(BufferSize).Count();
chunk = fileBytes.Skip(position).Take(chunkLength).ToArray();
Response.OutputStream.Write(chunk, 0, chunkLength);
Response.Flush();
position += chunkLength;
bytesLeftToTransmit -= chunkLength;
}
}
finally
{
Response.End();
}
Response.End();
}
}
}