How do I find the size of a 2D array? [duplicate]

Question

If I declare this array...

string[,] a = {                   {"0", "1", "2"},                   {"0", "1", "2"},                   {"0", "1", "2"},                   {"0", "1", "2"},               }; 

Then I can measure the length with

a.Length 

which is 12. How do I measure the dimension of the arrays within? If I try...

a[0].Length 

I get Wrong number of indices inside []; expected 2. What gives?

Answer 1

You want the GetLength() method of your array:

a.GetLength(0); 

http://msdn.microsoft.com/en-us/library/system.array.getlength.aspx