Dynamic Multidimensional Array

D S

I have a function...

private double[,] AddToArray(double[,] array, double[] dataToAdd) 
{ 
    // Make a new row at the end of 'array' and copy values  
    // from 'dataToAdd' into the new row. 
    // 
    // Return the new, modified array. 
}

However 'double[,]' isn't dynamic and I dont know what the final size of the array will be. I can create a List from it and add the new row to the list, but then I cant seem to convert it back to a double[,]. The List.ToArray() wants to output a jagged array (double[][]). This wont work. I'm interfacing with a program developed in LabVIEW and LV refuses to accept a jagged array. LV is happy with a fixed array ([,]).

Any help?

2 Replies

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Vulpes14y ago
Accepted answer
Try the following:

private double[,] AddToArray(double[,] array, double[] dataToAdd)
{
int rows = array.GetLength(0);
int cols = array.GetLength(1);
double[,] modArray = new double[rows + 1, cols];
Array.Copy(array, modArray, rows * cols);
for(int i = 0; i < cols; i++)
{
modArray[rows, i] = dataToAdd[i];
}
return modArray;
}
D S14y ago
Perfect! Thanks!

I actually tried that already but the Array.Copy() just copied zeros. Must have had something wrong.

Thanks again!