public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
if (value == null)
return null;
if (value is string)
{
string[] list = ((string)value).Split(',');
int[] items = new int[list.Length];
for(int i = 0; i < list.Length; i++)
{
items[i] = Convert.ToInt32(list[i]);
}
return items;
}
return base.ConvertFrom(context, culture, value);
}