How to calculate the size of hole array

Hi
Using array Length property ,
If it's a one-dimensional array a,

a.Length 

will give then number of elements of a.
If b is a rectangular multi-dimensional array (for example, int[,] b = new int[3, 5];)

b.Rank 

will give the number of dimensions (2), and

b.GetLength(dimensionIndex) 

will get the length of any given dimension (0-based indexing for the dimensions - so b.GetLength[0] is 3 and b.GetLength[1] is 5).
See System.Array Members for more info.
, there is a concept of a "jagged array", which is really nothing more than a single-dimensional array of (typically single-dimensional) arrays. For example, one could have

int[][] c = new int[][3]; 
c[0] = new int[] {1, 2, 3}; 
c[1] = new int[] {3, 14}; 
c[2] = new int[] {1, 1, 2, 3, 5, 8, 13}; 

Note that the 3 members of c all have different lengths. In this case, as before c.Length will indicate the number of elements of c, (3) and c[0].Length, c[1].Length, and c[2].Length will be 3, 2, and 7, respectively.

Hi friend,

Use the function GetUpperBoaund() to get the total size..

Thanks...