| public static EnumerableToArray ( IEnumerable collection, bool alwaysCreate ) : ArrayList | ||
| collection | IEnumerable | The source collection |
| alwaysCreate | bool | If true, this method will always create a new /// collection. |
| return | ArrayList | |
/// <summary>
/// Build our filtered list from our full list.
/// </summary>
protected void FilterObjects()
{
if (!this.listView.UseFiltering || (this.modelFilter == null && this.listFilter == null))
{
this.filteredObjectList = new ArrayList(this.fullObjectList);
return;
}
IEnumerable objects = (this.listFilter == null) ?
this.fullObjectList : this.listFilter.Filter(this.fullObjectList);
// Apply the object filter if there is one
if (this.modelFilter == null)
{
this.filteredObjectList = ObjectListView.EnumerableToArray(objects, false);
}
else
{
this.filteredObjectList = new ArrayList();
foreach (object model in objects)
{
if (this.modelFilter.Filter(model))
{
this.filteredObjectList.Add(model);
}
}
}
}
/// <summary>
/// Build our filtered list from our full list.
/// </summary>
protected void FilterObjects() {
// If this list isn't filtered, we don't need to do anything else
if (!this.listView.UseFiltering) {
this.filteredObjectList = new ArrayList(this.fullObjectList);
return;
}
// Tell the world to filter the objects. If they do so, don't do anything else
// ReSharper disable PossibleMultipleEnumeration
FilterEventArgs args = new FilterEventArgs(this.fullObjectList);
this.listView.OnFilter(args);
if (args.FilteredObjects != null) {
this.filteredObjectList = ObjectListView.EnumerableToArray(args.FilteredObjects, false);
return;
}
IEnumerable objects = (this.listFilter == null) ?
this.fullObjectList : this.listFilter.Filter(this.fullObjectList);
// Apply the object filter if there is one
if (this.modelFilter == null) {
this.filteredObjectList = ObjectListView.EnumerableToArray(objects, false);
} else {
this.filteredObjectList = new ArrayList();
foreach (object model in objects) {
if (this.modelFilter.Filter(model))
this.filteredObjectList.Add(model);
}
}
}
/// <summary>
///
/// </summary>
/// <param name="collection"></param>
public override void SetObjects(IEnumerable collection) {
ArrayList newObjects = ObjectListView.EnumerableToArray(collection, true);
this.fullObjectList = newObjects;
this.FilterObjects();
this.RebuildIndexMap();
}
/// <summary>
/// Create an exporter that will export all the given rows from the given ObjectListView
/// </summary>
/// <param name="olv"></param>
/// <param name="objectsToExport"></param>
public OLVExporter(ObjectListView olv, IEnumerable objectsToExport)
{
if (objectsToExport == null)
{
throw new ArgumentNullException("objectsToExport");
}
this.ListView = olv ?? throw new ArgumentNullException("olv");
this.ModelObjects = ObjectListView.EnumerableToArray(objectsToExport, true);
}
/// <summary>
/// Return the last N subset of the model objects
/// </summary>
/// <param name="modelObjects"></param>
/// <returns></returns>
public override IEnumerable Filter(IEnumerable modelObjects)
{
if (this.Count <= 0)
{
return(modelObjects);
}
ArrayList list = ObjectListView.EnumerableToArray(modelObjects, false);
if (this.Count > list.Count)
{
return(list);
}
object[] tail = new object[this.Count];
list.CopyTo(list.Count - this.Count, tail, 0, this.Count);
return(new ArrayList(tail));
}
