binaray reader problem ,binary reader not reading bytes.

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This code works perfectly well

C#

Session["fileUpl"] = fileUpl; lblFileUpload.Text = fileUpl.FileName;
            Session["Image"] = fileUpl.PostedFile;
            Stream fs = fileUpl.PostedFile.InputStream;
            BinaryReader br = new BinaryReader(fs);
            byte[] bytes = br.ReadBytes((Int32)fs.Length);
            string base64String = Convert.ToBase64String(bytes, 0, bytes.Length);
            Image1.ImageUrl = "data:image/png;base64," + base64String;

but this code below does not works ,fs.length shows file lenght but bites array shows 0 bytes .that means binary reader is not happy with something .i dont know why please help.

C#

fileUpl = (FileUpload)Session["fileUpl"]; lblFileUpload.Text = fileUpl.FileName;
           HttpPostedFile postedFile = (HttpPostedFile)Session["Image"];
           Stream fs = postedFile.InputStream;
           BinaryReader br = new BinaryReader(fs);
           byte[] bytes = br.ReadBytes((Int32)fs.Length);
           string base64String = Convert.ToBase64String(bytes, 0, bytes.Length);
           Image1.ImageUrl = "data:image/png;base64," + base64String;

Posted 10-Apr-15 18:59pm

varun150

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DamithSL · Answer 1 · 2015-04-10T19:17:00

put byte[] of PostedFile to the session and access it next time

C#

Stream fs = fileUpl.PostedFile.InputStream;
BinaryReader br = new BinaryReader(fs);
Session["bytes"] = br.ReadBytes((Int32)fs.Length);

then

C#

byte[] bytes = (byte[])Session["bytes"]
string base64String = Convert.ToBase64String(bytes, 0, bytes.Length);
Image1.ImageUrl = "data:image/png;base64," + base64String;