C# convert a long to string

Question

Here my problem is:

I have this code:

static long CountLinesInFile(string f)
{
    long count = 0;
    using (StreamReader r = new StreamReader(f))
    {
        string line;
        while ((line = r.ReadLine()) != null)
        {
            count++;
        }
    }
    return count;
}

Which counts the lines of a text file. The problem I have is that when I'm trying this:

textBox1.Text = CountLinesInFile("test.txt");

I'm getting an error:

Error   1   Cannot implicitly convert type 'long' to 'string'

It seems legit, but how am I supposed to convert it to string? In Java its a simple toString()

Can someone give me a solution?

Answer 1

Use the ToString() method like this:

textBox1.Text = CountLinesInFile("test.txt").ToString();