public static IEnumerable <DataItem> Find(this DataItemCollection c, Func <DataItem, bool> criteria)
{
List <DataItem> itemList = new List <DataItem>();
// look in the collection
var items = from i in c.Items
where criteria(i)
select i;
if (items != null)
{
itemList.AddRange(items);
}
// look in subcomponents
foreach (var subcomponent in c.Parent.Components)
{
items = subcomponent.DataItems.Find(criteria);
if (items != null)
{
itemList.AddRange(items);
}
}
if (itemList.Count == 0)
{
return(null);
}
return(itemList);
}
internal DataItemCollection(DataItemCollection collection)
{
foreach (var di in collection)
{
this.Add(new DataItem(di));
}
m_parent = collection.Parent;
}
internal ComponentBase()
{
Components = new ComponentCollection();
Properties = new PropertyCollection();
DataItems = new DataItemCollection(this);
Components.DataItemValueSet += new EventHandler <DataItemValue>(DataItems_DataItemValueSet);
DataItems.DataItemValueSet += new EventHandler <DataItemValue>(DataItems_DataItemValueSet);
}