how to passing value of session from page 2 to page 1 in asp.net? -

i have listbox , button on page 1 , when click on button, page 2 open in new tab. in page 2, i'm uploading photos folder , set session["filename"] value. want when close page 2, names of uploaded images displayed in listbox.

note: session["filename"] = names of uploaded images.

does have idea? please me.

thank you.

my upload class:

public void processrequest(httpcontext context) {           if (context.request.files.count > 0)     {         // applications path           string uploadpath = context.server.mappath(context.request.applicationpath + "/temp");         (int j = 0; j <= context.request.files.count - 1; j++)         {             // loop through uploaded files              // current file              httppostedfile uploadfile = context.request.files[j];              // if there file uploded              if (uploadfile.contentlength > 0)             {                 context.session["filename"] = context.session["filename"].tostring() + uploadfile.filename+",";                 uploadfile.saveas(path.combine(uploadpath, uploadfile.filename));             }         }     }     // used fix bug in mac flash player makes      // oncomplete event not fire      httpcontext.current.response.write(" "); } 

session server object in asp.net. means, when create session on 1 page, can use on other page, long session object wasn't removed or expired.

suppose did on page1.aspx.cs

session["filename"] = "file1"; 

then can access on page2.aspx.cs this:

if(session["filename"]!=null)     label1.text = (string)session["filename"] 

so way can access session variables on .aspx page or control-derived class.

if want access session variables in class library project than, this:

httpcontext.current.session["filename"] 

also, looks have created custom httpmodule.

be notified httpmodule must not dealing pipeline events that occur before session state being initialized.

read this know more on how , when access session variables in httpmodule