How to replace the file name(particular specific folder) using Asp.net? - asp.net

Question

i can replace the file name in particular folder , i wrote like this
FileInfo fsource = new FileInfo(Server.MapPath("~/PurchaseOrder/" + lblhideid.Text));
if (fsource.Exists)
{
string[] file = lblhideid.Text.Split('.');
string fName="Z-"+System.DateTime.Now.ToString("MM-dd-yyyy")+"-"+saveConsultantID+"."+file[1];
fsource.Name.Replace(lblhideid.Text, fName);
}
lblhideid.Text=image.jpeg , so i can replace the my own name like fName , how to replace the name pls give me any suggestion.
Thank u
Hemanth

Answer 1

I suspect you want that last line to be:
fsource.MoveTo(Server.MapPath("~/PuchaseOrder/" + fName));
You current code is only getting the filename as a string and manipulate that string. You want to manipulate the file itself.
EDIT:
Are you sure that ~/PurchaseOrder/ exists?
Try:
string originalPath = Server.MapPath("~/PurchaseOrder/" + lblhideid.Text);
FileInfo fsource = new FileInfo(originalPath);
if (fsource.Exists)
{
string newName = string.Format("Z-{0:MM-dd-yyyy}-{1}.{2}",
System.DateTime.Now,
saveConsultantID,
fsource.Extension);
string newPath = Path.Combine(fsource.DirectoryName, newName);
fsource.MoveTo(newPath);
}

Answer 2

Try this, what if they put a filename like file.tar.gz ?
string extension = Path.GetExtension("~/PurchaseOrder/" + lblhideid.Text);
string newName = "MYFILE." + extension
File.Move(
"~/PurchaseOrder/" + lblhideid.Text,
"~/PurchaseOrder/" + newName );