# lowerbound of array

### Question

•

How can we set the lowerbound and upperbound of array .

Ex: if i want ot set 0 to 6 to below array

double[] sigmaChange,mueChange;

Thanks,

Vikas

Thursday, May 22, 2008 7:42 AM

• You can create .Net arrays with non-zero lower bounds, but they are a right pain to use:

Array array = Array.CreateInstance(typeof(int), new int[] { 10 }, new int[] { 5 });
Console.WriteLine("Lower bound = " + array.GetLowerBound(0));

for (int i = 5; i < 15; ++i)
{
array.SetValue(i, i);
}

for (int i = 5; i < 15; ++i)
{
Console.WriteLine(array.GetValue(i));
}

Thursday, May 22, 2008 9:18 AM

### All replies

• All arrays in C# are zero-based. The first element is always at index 0 (zero). It's not possible to set a lower bound.
Thursday, May 22, 2008 7:57 AM
• that's right, you have to dimension the arrays like this:

double[] sigmaChange = new double[7];

that gives you 7 elements

sigmaChange[0] through to sigmaChange

.. that should be [ 6 ]!

Thursday, May 22, 2008 9:10 AM
• You can create .Net arrays with non-zero lower bounds, but they are a right pain to use:

Array array = Array.CreateInstance(typeof(int), new int[] { 10 }, new int[] { 5 });
Console.WriteLine("Lower bound = " + array.GetLowerBound(0));

for (int i = 5; i < 15; ++i)
{
array.SetValue(i, i);
}

for (int i = 5; i < 15; ++i)
{
Console.WriteLine(array.GetValue(i));
}

Thursday, May 22, 2008 9:18 AM