protected override int CreateChildControls(System.Collections.IEnumerable dataSource, bool dataBinding)
{
if (this.itemsArray != null)
{
this.itemsArray.Clear();
}
else
{
this.itemsArray = new ArrayList();
}
if (!dataBinding)
{
int dataItemCount = System.Convert.ToInt32(ViewState["_!ItemCount"]);
dataSource = new Data.DummyDataSource(dataItemCount);
this.itemsArray.Capacity = dataItemCount;
}
else if (dataSource == null)
{
return(0);
}
Panel leftSliding = CreateLeftSliding();
Panel rightSliding = CreateRightSliding();
Unit width = Unit.Parse("0px");
if (leftSliding.Width.Type == UnitType.Pixel && rightSliding.Width.Type == UnitType.Pixel)
{
if (this.Width.IsEmpty)
{
width = Unit.Parse(DefaultWidth);
width = new Unit(width.Value - leftSliding.Width.Value - rightSliding.Width.Value, UnitType.Pixel);
}
else if (width.Type == UnitType.Pixel)
{
width = new Unit(this.Width.Value - leftSliding.Width.Value - rightSliding.Width.Value, UnitType.Pixel);
}
}
if (width.Value <= 0)
{
throw (new InvalidOperationException("Control, LeftSliding, and RightSliding styles must use the Pixel unit on its width"));
}
Panel centerPanel = CreateCenterPanel(width);
Controls.Add(leftSliding);
Controls.Add(centerPanel);
Controls.Add(rightSliding);
Panel content = new Panel();
content.ID = "container";
content.Height = Unit.Parse("100%");
content.Style["position"] = "relative";
content.Style["left"] = "0px";
centerPanel.Style["position"] = "relative";
centerPanel.Controls.Add(content);
//adding items to the centerpanel.
int indice = 0;
/*
* Dim itens As New List(Of SlidingPanelItem)
*/
foreach (object obj in dataSource)
{
ListItemType tipo = ListItemType.Item;
if (indice % 2 != 0)
{
tipo = ListItemType.AlternatingItem;
}
SlidingPanelItem item = new SlidingPanelItem(indice, tipo);
itemsArray.Add(item);
Style style = new Style();
if (tipo == ListItemType.AlternatingItem)
{
if (this.AlternatingItemTemplate != null)
{
AlternatingItemTemplate.InstantiateIn(item);
}
else if (this.ItemTemplate != null)
{
ItemTemplate.InstantiateIn(item);
}
if ((AlternatingItemStyle != null) && !AlternatingItemStyle.IsEmpty)
{
style = AlternatingItemStyle;
}
else
{
style = ItemStyle;
}
}
else if (tipo == ListItemType.Item)
{
if (this.ItemTemplate != null)
{
ItemTemplate.InstantiateIn(item);
}
style = ItemStyle;
}
SlidingPanelItemEventArgs e = new SlidingPanelItemEventArgs(item);
OnItemCreated(e);
content.Controls.Add(item);
if (dataBinding)
{
item.SetDataItem(obj);
item.DataBind();
OnItemDataBound(e);
item.SetDataItem(null);
}
item.SetStyle(style);
indice++;
}
int itensCount = itemsArray.Count;
if (itensCount > 4)
{
itensCount = 4;
}
Unit defaultItemWidth = ItemStyle.Width;
if (defaultItemWidth.IsEmpty)
{
defaultItemWidth = Unit.Parse(Math.Round(centerPanel.Width.Value / itensCount).ToString() + "px");
}
foreach (SlidingPanelItem i in itemsArray)
{
if (i.Width.IsEmpty)
{
i.Width = defaultItemWidth;
}
if (this.DesignMode)
{
int indiceItem = itemsArray.IndexOf(i) + 1;
int rightPixel = (int)(defaultItemWidth.Value * indiceItem);
if (rightPixel >= centerPanel.Width.Value)
{
content.Controls.Remove(i);
}
}
}
int offset = MovingOffset;
if (offset == 0)
{
offset = (int)defaultItemWidth.Value;
}
SetAction(leftSliding, +offset, (int)centerPanel.Width.Value);
SetAction(rightSliding, -offset, (int)centerPanel.Width.Value);
if (dataBinding)
{
ViewState["_!ItemCount"] = itemsArray.Count;
}
SendScripts();
return(itemsArray.Count);
}