xsd.exe generated c# with multiple elements in an array

Question

I have a set of XML schema files provided to me. I cannot changed the XML as these will be updated on occasion. I am using xsd.exe to convert the schema files to generated c

Answer 1

Here's the final solution we came up with that leverages when I learned from the original answer. This static class is used to get and set the appropriate properties.

public static class XmlPolymorphicArrayHelper
{
    public static TResult GetItem(TResult[] items, TIDentifier[] itemIdentifiers, TIDentifier itemIdentifier)
    {
        if (itemIdentifiers == null)
        {
            return default(TResult);
        }
        var i = Array.IndexOf(itemIdentifiers, itemIdentifier);
        return i < 0 ? default(TResult) : items[i];
    }

    public static void SetItem(ref TResult[] items, ref TIDentifier[] itemIdentifiers, TIDentifier itemIdentifier, TResult value)
    {
        if (itemIdentifiers == null)
        {
            itemIdentifiers = new[] { itemIdentifier };
            items = new[] { value };

            return;
        }

        var i = Array.IndexOf(itemIdentifiers, itemIdentifier);
        if (i < 0)
        {
            var newItemIdentifiers = itemIdentifiers.ToList();
            newItemIdentifiers.Add(itemIdentifier);
            itemIdentifiers = newItemIdentifiers.ToArray();

            var newItems = items.ToList();
            newItems.Add(value);
            items = newItems.ToArray();
        }
        else
        {
            items[i] = value;
        }

    }
}

And then call them from the partial class like this:

public partial class LocationType
{
    [XmlIgnore]
    public string Address
    {
        get
        {
            return (string)XmlPolymorphicArrayHelper.GetItem(Items, ItemsElementName, ItemsChoiceType.Address);
        }
        set
        {
            XmlPolymorphicArrayHelper.SetItem(ref this.itemsField, ref this.itemsElementNameField, ItemsChoiceType.Address, value);
        }
    }
}

This sets/creates the appropriate member on the Items array and I can use this for the multiple classes that implement this pattern.