RE:DocumentHelper.AddAttachment Not Saving Attachment?

rasiuddin-takweenmedia
I am using Same code but i cant get attachment in node folder

private bool InsertUnsortedAttachment()
{
TreeProvider tree = new TreeProvider(CMSContext.CurrentUser);
CMS.DocumentEngine.TreeNode node = tree.SelectSingleNode(CMSContext.CurrentSiteName, "/Images", "en-us");
string postedFile = System.IO.Path.GetFileName(FileUpload1.PostedFile.FileName);
if (node != null)
{

//return (DocumentHelper.AddUnsortedAttachment(node, Guid.NewGuid(), postedFile, tree, ImageHelper.AUTOSIZE, ImageHelper.AUTOSIZE, ImageHelper.AUTOSIZE) != null);

AttachmentInfo newAttachment = null;

//newAttachment = DocumentHelper.AddAttachment(node, "MenuItemTeaserImage", postedFile, tree);
newAttachment = DocumentHelper.AddAttachment(node, "MenuItemTeaserImage", postedFile, tree);

node.Update();

if (newAttachment != null)
{
return true;
}
}

return false;
}