/// <summary>
/// Assign items to a given list
/// </summary>
/// <param name="list">List to assign to</param>
/// <param name="itemType">Item type</param>
/// <param name="from">List to assign from</param>
public static void Assign(IList list, Type itemType, IList from)
{
// Assigning null values is not supported
if (from == null)
{
throw new ArgumentNullException(nameof(from));
}
// Delete obsolete items
for (int i = list.Count; i > from.Count; i--)
{
list.RemoveAt(i - 1);
}
// Update common items
if (itemType.IsSubclassOf(typeof(ModelObject)))
{
for (int i = 0; i < Math.Min(list.Count, from.Count); i++)
{
ModelObject item = (ModelObject)list[i];
ModelObject sourceItem = (ModelObject)from[i];
if (item == null || sourceItem == null)
{
list[i] = sourceItem;
}
else if (sourceItem.GetType() != item.GetType())
{
list[i] = sourceItem.Clone();
}
else
{
item.Assign(sourceItem);
}
}
}
else if (itemType.IsArray)
{
for (int i = 0; i < Math.Min(list.Count, from.Count); i++)
{
if (list[i] == null || from[i] == null)
{
list[i] = from[i];
}
else
{
IList listItem = (IList)list[i], fromItem = (IList)from[i];
if (listItem.Count != fromItem.Count)
{
list[i] = from[i];
}
else
{
for (int k = 0; k < listItem.Count; k++)
{
if (!Equals(listItem[k], fromItem[k]))
{
list[i] = from[i];
break;
}
}
}
}
}
}
else
{
for (int i = 0; i < Math.Min(list.Count, from.Count); i++)
{
if (!Equals(list[i], from[i]))
{
list[i] = from[i];
}
}
}
// Add missing items
for (int i = list.Count; i < from.Count; i++)
{
list.Add(from[i]);
}
}