public static TResult[][] ToJaggedArray <TSource, TResult>(this TSource[,] twoDimensionalArray, Func <TSource, TResult> convertValue)
{
int rowsFirstIndex = twoDimensionalArray.GetLowerBound(0);
int rowsLastIndex = twoDimensionalArray.GetUpperBound(0);
int numberOfRows = rowsLastIndex + 1;
int columnsFirstIndex = twoDimensionalArray.GetLowerBound(1);
int columnsLastIndex = twoDimensionalArray.GetUpperBound(1);
int numberOfColumns = columnsLastIndex + 1;
TResult[][] jaggedArray = new TResult[numberOfRows][];
for (int i = rowsFirstIndex; i <= rowsLastIndex; i++)
{
jaggedArray[i] = new TResult[numberOfColumns];
for (int j = columnsFirstIndex; j <= columnsLastIndex; j++)
{
jaggedArray[i][j] = convertValue(twoDimensionalArray[i, j]);
}
}
return(jaggedArray);
}