Problem in counting no of files downloaded so far during downloading

Question

I can download all the directories and subdirectories and files..
Now i want to count the no of files that downloaded so far and display it on the form..
So that i can know that how many files has been downloaded n how many have to be downloaded..
i placed a count in downloadFile() as follows

count =count+1;
textBox1.Text=count.ToString();

the counting is taken place.. But after downloading all the files only i could see the no of files downloaded..
i could not see that during downloading..
I need a solution or sample code for it

THANK YOU...