<p>I need a method to return a random string in the format:</p>

<p>Letter Number Letter  Number Letter Number</p>

You just need 2 methods.
1) Random a char (You can use
ASCII
to random between number than cast to char)
2) Random number.
Both can use this utility method:
```
```
private int RandomNumber(int min, int max)
{
    Random random = new Random();
    return random.Next(min, max); 
}
```
```
For the letter you need to call
```
RandomNumber(65,90);
```
and for the number you call :
```
RandomNumber(1,9);
```
You just need to concatenate.
Than you call these methods to create your string, Hope this help you.
Update
You should put the random object in your class... it was just to show you how to do it. You still need to work a little but I think it's a good start to show you how to manipulate char from ascii.