internal override RadListSource CreateListSource()
{
RadListSource listSource = base.CreateListSource();
this.SetupListSource(listSource);
return(listSource);
}
public ListDataLayer(RadListElement owner)
{
this.owner = owner;
this.listSource = this.CreateListSource();
this.items = this.CreateItemsCollection(owner);
this.listSource.CollectionView.GroupDescriptors.Add("GroupKey", ListSortDirection.Ascending);
this.WireEvents();
}
internal override RadListSource CreateListSource()
{
RadListSource listSource = base.CreateListSource();
listSource.ItemFactory = this.listSourceFactory = new DataBoundListBoxListSourceItemFactory(this);
listSource.ItemPropertyChanged += this.OnListSource_ItemPropertyChanged;
return(listSource);
}
/// <summary>
/// Creates a <see cref="T:Telerik.Core.Data.IDataSourceItem"/> instance.
/// </summary>
public IDataSourceItem CreateItem(RadListSource owner, object value)
{
DataSourceItem newItem = new DataSourceItem(owner, value);
if (!string.IsNullOrEmpty(this.owner.itemCheckedPathCache))
{
this.InitializeItemCheckedState(newItem);
}
return(newItem);
}
protected virtual void EnsureFilterPredicate(ListViewDataItemGroup item)
{
if (this.owner == null || !this.owner.EnableFiltering || this.owner.DataView.Filter == null)
{
return;
}
RadListSource <ListViewDataItem> innerList = item.Items.InnerList as RadListSource <ListViewDataItem>;
if (innerList == null)
{
return;
}
innerList.CollectionView.Filter = this.owner.DataView.Filter;
}
void ListSource_PositionChanged(object sender, EventArgs e)
{
if (this.IsSuspended)
{
return;
}
this.SuspendUpdate();
RadListSource <RadTreeNode> source = this.TreeView.ListSource;
if (source.Position >= 0 && source.Position < source.Count)
{
RadTreeNode node = source[source.Position];
this.TreeView.SelectedNode = node;
ExpandEnsureVisible();
}
this.ResumeUpdate();
}
/// <summary>
/// Initializes a new instance of the <see cref="ListFooterIndicatorItem" /> class.
/// </summary>
internal ListFooterIndicatorItem(RadListSource owner, object value) : base(owner, value)
{
}
protected DataControlBase()
{
this.listSource = this.CreateListSource();
this.listSource.CollectionChanged += this.OnListSourceCollectionChanged;
}
/// <summary>
/// Changes the current ListSource instance with an external one. This is used in the PaginationListControl to save an additional ListSource instance.
/// </summary>
internal virtual void ChangeListSource(RadListSource externalSource)
{
this.listSource = externalSource;
this.OnCollectionReset();
this.UpdateVisualState(false);
}
internal virtual void SetupListSource(RadListSource listSource)
{
listSource.CurrentItemChanging += this.OnListSource_CurrentItemChanging;
listSource.CurrentItemChanged += this.OnListSource_CurrentItemChanged;
}
/// <summary>
/// Creates a group item for the specified data group.
/// </summary>
public IDataSourceGroup CreateGroup(RadListSource owner, DataGroup dataGroup)
{
return(new DataSourceGroup(owner, dataGroup));
}
/// <summary>
/// Initializes a new instance of the <see cref="IncrementalLoadingIndicatorItem" /> class.
/// </summary>
internal IncrementalLoadingIndicatorItem(RadListSource owner, object value)
: base(owner, value)
{
}
