Setting column number of multidimensional array in run time

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C#

Hai all,
How do i set number of columns of an multidimentional array at runntime ?

Posted 20-May-11 21:52pm

version_2.0

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Michael Waguih · Accepted Answer · 2011-05-20T22:01:00

Solution 1

Hi rahulrcn,

You can take the number of rows and the number of columns from the user and store it in Columns and Rows variables then :

int[,] Array = new int[Rows, columns];

I hope this help,
:)

Posted 20-May-11 22:01pm

Michael Waguih

OriginalGriff · Accepted Answer · 2011-05-20T22:03:00

There is a good description with examples on MSDN[^]

But:

int[,] myArray = new int[myRowsCount, myColumnsCount];

Note that is you want the array populated with items more complex than ints, floats, etc., (such as your own classes) that you must iterate through the array and provide the references before you use them, or provide an initializer when you declare the array. The link gives examples of this too.

Also note that multi-dimensional arrays get very big, very fast. For two dimensions, it is a square law. For three it's a cubic, and so on.