/// <summary>
/// Creates a hierarchical repeater item.
/// </summary>
/// <param name="itemIndex"></param>
/// <param name="itemType"></param>
/// <returns></returns>
protected override RepeaterItem CreateItem(int itemIndex, ListItemType itemType)
{
HierarchicalRepeaterItem item = new HierarchicalRepeaterItem(this, itemIndex, itemType);
if (this.useDataSource)
{
// We need a way to create our child hiearchy _after_ this control was added to the
// control hierarchy. It seems that one of the only ways to achieve this is by
// overriding AddedControl and see if the added control is this repeater item.
this.nextExpectedControl = item;
}
return(item);
}
/// <summary>
/// Creates the child hierarchy.
/// </summary>
/// <param name="parent"></param>
protected internal virtual void CreateChildHierarchy(HierarchicalRepeaterItem parent)
{
IEnumerable enumerable = null;
if (this.useDataSource)
{
if (parent.ItemCount > -1)
{
return;
}
TreeNode <object> node = this.data.FindRecursive(new Predicate <object>(delegate(object target)
{
return(parent.DataItem == target);
}));
if (node != null)
{
enumerable = node.Nodes;
}
}
else
{
if (parent.ItemCount > -1 && parent.ChildPanel.Controls.Count == 0)
{
enumerable = new DummyDataSource(parent.ItemCount);
}
}
if (enumerable != null)
{
bool isSeparated = (this.SeparatorTemplate != null);
int itemLength = 0;
foreach (object dataObject in enumerable)
{
if (isSeparated && (itemLength > 0))
{
this.CreateItem(parent, itemLength - 1, ListItemType.Separator, useDataSource, null);
}
ListItemType type = ((itemLength % 2) == 0) ? ListItemType.Item : ListItemType.AlternatingItem;
HierarchicalRepeaterItem childItem = (HierarchicalRepeaterItem)this.CreateItem(parent, itemLength, type, useDataSource, dataObject);
itemLength++;
}
}
}
/// <summary>
/// Creates an item.
/// </summary>
/// <param name="parent"></param>
/// <param name="itemIndex"></param>
/// <param name="itemType"></param>
/// <param name="dataBind"></param>
/// <param name="dataItem"></param>
/// <returns></returns>
private RepeaterItem CreateItem(HierarchicalRepeaterItem parent, int itemIndex, ListItemType itemType, bool dataBind, object dataItem)
{
HierarchicalRepeaterItem item = (HierarchicalRepeaterItem)this.CreateItem(itemIndex, itemType);
RepeaterItemEventArgs args = new RepeaterItemEventArgs(item);
this.InitializeItem(item);
if (dataBind)
{
item.DataItem = dataItem;
}
this.OnItemCreated(args);
parent.ChildPanel.Controls.Add(item);
if (!this.ChildContainerStyle.IsEmpty)
{
parent.ChildPanel.ApplyStyle(this.ChildContainerStyle);
}
if (this.useDataSource && (item.ItemType == ListItemType.AlternatingItem || item.ItemType == ListItemType.Item))
{
if (parent.ItemCount == -1)
{
parent.ItemCount = 1;
}
else
{
parent.ItemCount++;
}
this.CreateChildHierarchy(item);
}
if (dataBind)
{
item.DataBind();
this.OnItemDataBound(args);
}
return(item);
}
/// <summary>
/// Creates an item.
/// </summary>
/// <param name="parent"></param>
/// <param name="itemIndex"></param>
/// <param name="itemType"></param>
/// <param name="dataBind"></param>
/// <param name="dataItem"></param>
/// <returns></returns>
private RepeaterItem CreateItem(HierarchicalRepeaterItem parent, int itemIndex, ListItemType itemType, bool dataBind, object dataItem)
{
HierarchicalRepeaterItem item = (HierarchicalRepeaterItem)this.CreateItem(itemIndex, itemType);
RepeaterItemEventArgs args = new RepeaterItemEventArgs(item);
this.InitializeItem(item);
if (dataBind)
{
item.DataItem = dataItem;
}
this.OnItemCreated(args);
parent.ChildPanel.Controls.Add(item);
if (!this.ChildContainerStyle.IsEmpty)
{
parent.ChildPanel.ApplyStyle(this.ChildContainerStyle);
}
if (this.useDataSource && (item.ItemType == ListItemType.AlternatingItem || item.ItemType == ListItemType.Item))
{
if (parent.ItemCount == -1)
parent.ItemCount = 1;
else
parent.ItemCount++;
this.CreateChildHierarchy(item);
}
if (dataBind)
{
item.DataBind();
this.OnItemDataBound(args);
}
return item;
}
/// <summary>
/// Creates the child hierarchy.
/// </summary>
/// <param name="parent"></param>
protected internal virtual void CreateChildHierarchy(HierarchicalRepeaterItem parent)
{
IEnumerable enumerable = null;
if (this.useDataSource)
{
if (parent.ItemCount > -1)
return;
TreeNode<object> node = this.data.FindRecursive(new Predicate<object>(delegate(object target)
{
return (parent.DataItem == target);
}));
if (node != null)
{
enumerable = node.Nodes;
}
}
else
{
if (parent.ItemCount > -1 && parent.ChildPanel.Controls.Count == 0)
{
enumerable = new DummyDataSource(parent.ItemCount);
}
}
if (enumerable != null)
{
bool isSeparated = (this.SeparatorTemplate != null);
int itemLength = 0;
foreach (object dataObject in enumerable)
{
if (isSeparated && (itemLength > 0))
{
this.CreateItem(parent, itemLength - 1, ListItemType.Separator, useDataSource, null);
}
ListItemType type = ((itemLength % 2) == 0) ? ListItemType.Item : ListItemType.AlternatingItem;
HierarchicalRepeaterItem childItem = (HierarchicalRepeaterItem)this.CreateItem(parent, itemLength, type, useDataSource, dataObject);
itemLength++;
}
}
}
/// <summary>
/// Creates a hierarchical repeater item.
/// </summary>
/// <param name="itemIndex"></param>
/// <param name="itemType"></param>
/// <returns></returns>
protected override RepeaterItem CreateItem(int itemIndex, ListItemType itemType)
{
HierarchicalRepeaterItem item = new HierarchicalRepeaterItem(this, itemIndex, itemType);
if (this.useDataSource)
{
// We need a way to create our child hiearchy _after_ this control was added to the
// control hierarchy. It seems that one of the only ways to achieve this is by
// overriding AddedControl and see if the added control is this repeater item.
this.nextExpectedControl = item;
}
return item;
}