Bytes to bytes Conversion in asp.net?

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C#

protected void btnSubmit_Click(object sender, EventArgs e)
    {

        if (fpPhoto.HasFile)
        {
            if (fpPhoto.PostedFile.ContentType == "image/jpg" || fpPhoto.PostedFile.ContentType == "image/jpeg" || fpPhoto.PostedFile.ContentType == "image/png")
            {
                byte[] imagebytes = new byte[fpPhoto.PostedFile.ContentLength];
               int filelenght = fpPhoto.PostedFile.ContentLength;
               imagebytes = fpPhoto.FileBytes;
               fpPhoto.PostedFile.InputStream.Read(imagebytes, 0, filelenght);
            }
        }

        User objUser = new User();

            objUser.UserName_Pk = txtUserName.Text;
            objUser.Password = txtPassword.Text;
            objUser.MobileNo = txtMobileNo.Text;
            objUser.Email = txtEmail.Text;
            objUser.SecurityAnswer = txtAnswer.Text;
            objUser.Photo = Convert.ToByte(imagebytes);//Here is the problem

        objUserBll.InsertUpdate(objUser);

Posted 21-Feb-14 20:25pm

www-sahilv

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OriginalGriff · Answer 1 · 2014-02-21T21:33:00

If you are trying to convert it to an image - and I can't think of anything else you'd want to convert it to - then try this:

C#

MemoryStream ms = new MemoryStream(imagebytes);
Image returnImage = Image.FromStream(ms);

But...you need to move your definitions about anyway: imagesbytes is out of scope where you are trying to use it.
Try this:

C#

Image userImage = null;
if (fpPhoto.HasFile)
{
    if (fpPhoto.PostedFile.ContentType == "image/jpg" || 
        fpPhoto.PostedFile.ContentType == "image/jpeg" || 
        fpPhoto.PostedFile.ContentType == "image/png")
    {
       userImage = Image.FromStream(fpPhoto.PostedFile.InputStream);
    }
}

User objUser = new User();

objUser.UserName_Pk = txtUserName.Text;
objUser.Password = txtPassword.Text;
objUser.MobileNo = txtMobileNo.Text;
objUser.Email = txtEmail.Text;
objUser.SecurityAnswer = txtAnswer.Text;
objUser.Photo = userImage;

objUserBll.InsertUpdate(objUser);

Mitchell J. · Answer 2 · 2014-02-21T21:22:00

Solution 1

The problem is that imagebytes is a byte array.

As such you will never be able to convert it into a single byte, which is what Convert.ToByte() does.

What exactly is this code supposed to do? What sort of data type is User.Photo?

Posted 21-Feb-14 21:22pm

Mitchell J.