[code]
StreamReader textFile = new StreamReader("WordList.txt");
StreamWriter write = new StreamWriter("List3.txt", false);
do
{
string text = textFile.ReadLine();
if (text.Length == 3)
write.WriteLine(text);
} while (!textFile.EndOfStream);
MessageBox.Show("done");
[code]

There is a game on face book called scramble (also known as boggle) where you have a 3x3 or 4x4 grid of letters and have to find the words in the grid ranging from 3 to 8 letters.

I have made a program that will find the words. my only problem is that it is really slow because the word list that it checks from is extremely long. So I want to make the word list into many different lists sorted by number of letters.

I have created such a program with the code above. The code works perfectly and fast. My only problem is that when the program writes so many words it just stops writing. For instance when I tried to put all of the 3 letter words in a file it got down to the word "tat" after that it wont write any more to the file. I have tried debugging it and it looks like it should keep writing it just doesn't. I already tried doing it in two lists but it only adds a few more words not all of them. I think it might be a memory overload problem but I'm not sure how to fix it.

Silly question, you sure you're closing the file you're writing to? When you're done reading, make sure you throw in a write.Close();.