Using StreamWriter

I don't feel showing my code is necessary, so here's the idea.
I create a StreamWriter, write to a the file, close it, email it, then erase it using File.WriteAll(path, "").
The problem is that i'm trying to do this using a loop, and I can't use the StreamWriter again in the loop because I have closed it. Is there a way to reopen it? or what other options are there?

 

Pretty much screwed

 

thats a bit f up

 

for(int i = 0;i > MyLoop;i++)
{
StreamWriter sw = new StreamWriter("myfile.txt");
sw.write("lol");
sw.Close();
E-mail();
if(Exists("myfile.txt"))
{
File.Delete("myfile.txt");
}
}

Thats how i whould do it..

 

Can't delete because it says file is in use by another operation.

 

sw.Dispose();

 

be sure that you are using this

using () {}

or close streamwriter yourself

 

using (streamwriter sw=new streamwriter())
{}

the streamwriter should be close

 

dispose it