How to validate user input for whether it's an integer?

Question

It tells me that it can't convert int to bool. Tried TryParse but for some reason the argument list is invalid.

Code:

private void SetNumber(string n)
{
    // if user input is a number then
    if (int.Parse(n)) 
    {
        // if user input is negative
        if (h < 0)
        {
            // assign absolute version of user input
            number = Math.Abs(n); 
        }
        else 
        {
            // else assign user input
            number = n;
        }
    }
    else
    {
        number = 0; // if user input is not an int then set number to 0  
    }
}

Answer 1

You were probably very close using TryParse, but I'm guessing you forgot the out keyword on the parameter:

int value;
if (int.TryParse(n, out value))
{

}