public static WebAnchor GetNavigationAnchor(WebNavigationItemArgs args)
{
if (args == null)
{
throw new ArgumentNullException("args");
}
return(ControlFinder.Instance.FindFirstControlOnType(args.NavigationItem, typeof(WebAnchor)) as WebAnchor);
}
protected virtual void OnItemDataBound(RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
// Cast dataitem
var pageData = ((INavigationPage)e.Item.DataItem);
var navItems = ((NavigationPageCollection)rptNavigation.DataSource);
// check if selected
var isSelected = IsPageSelected(this.RootPage, pageData, this.SelectedNavigationPage);
var isInSelectedPath = IsPageInSelectedPath(this.RootPage, pageData, this.SelectedNavigationPage);
var isChildOfRemovedNode = this.IncludeChildrenOfRemovedNodesMode > IncludeChildrenOfRemovedNodesMode.Never &&
(this.IncludeChildrenOfRemovedNodesMode.Equals(IncludeChildrenOfRemovedNodesMode.Always) || isInSelectedPath) &&
this.IsPageChildOfRemovedNode(this.RootPage, pageData);
var liListItem = this.GetNavigationItemDelegate(e);
if ((isSelected && this.hideSelectedPage) || (!isInSelectedPath && this.ShowOnlyPagesInPath))
{
liListItem.Visible = false;
}
else
{
var expandingLevel = this.NumberOfLevels != 0 && (!pageData.Id.Equals(this.RootPage.Id) || this.IncludeRootLevelInList) && (this.ExpandAll || isInSelectedPath);
if (expandingLevel)
{
var subNavigationPlaceHolder = new PlaceHolder();
liListItem.Controls.Add(subNavigationPlaceHolder);
var args = new WebNavigationItemArgs(liListItem,
this,
pageData,
isSelected,
isInSelectedPath,
e.Item.ItemIndex,
e.Item.ItemIndex == 0,
e.Item.ItemIndex == (navItems.Count - 1),
expandingLevel,
isChildOfRemovedNode,
null);
var subNavigation = this.CreateWebNavigationControlDelegate(args);
subNavigationPlaceHolder.Controls.Add(subNavigation);
args.SubNavigation = subNavigation;
this.PopulateSubNavigation(subNavigation, pageData);
this.PopulateNavigationItemDelegate(args);
subNavigation.DataBind();
this.visibleLevels += subNavigation.VisibleLevels;
this.visibleDescendants += subNavigation.VisibleDescendants;
this.selectedNavigationPath.AddRange(subNavigation.selectedNavigationPath);
}
else
{
this.PopulateNavigationItemDelegate(new WebNavigationItemArgs(liListItem, this, pageData, isSelected, isInSelectedPath, e.Item.ItemIndex, e.Item.ItemIndex == 0, e.Item.ItemIndex == (navItems.Count - 1), expandingLevel, isChildOfRemovedNode, null));
}
this.visibleChildren++;
this.visibleDescendants++;
if (isInSelectedPath)
{
this.selectedNavigationPath.Insert(0, pageData);
}
}
}
}
public static void PopulateNavigationItem(WebNavigationItemArgs args)
{
if (args == null)
{
throw new ArgumentNullException("args");
}
var liClass = string.Empty;
var aClass = string.Empty;
if (args.IsSelected || args.IsInSelectedPath)
{
aClass = liClass = args.IsSelected ? "selected" : "selected-path";
}
if (args.IsFirstItem)
{
liClass = liClass + (liClass.Length > 0 ? " " : string.Empty) + "first-item";
}
if (args.IsLastItem)
{
liClass = liClass + (liClass.Length > 0 ? " " : string.Empty) + "last-item";
}
if (args.IsChildOfRemovedNode)
{
liClass = liClass + (liClass.Length > 0 ? " " : string.Empty) + "child-of-removed-node";
}
if (args.ParentNavigation.IndicateIfNodeHasChildren)
{
var children = args.ParentNavigation.GetChildren(args.NavigationPage);
var removedChildren = args.ParentNavigation.IncludeChildrenOfRemovedNodesMode > IncludeChildrenOfRemovedNodesMode.Never ?
new NavigationPageCollection() : null;
children = args.ParentNavigation.FilterNavigation(children, removedChildren);
if (args.ParentNavigation.IncludeChildrenOfRemovedNodesMode > IncludeChildrenOfRemovedNodesMode.Never)
{
var nonRemovedDescendants = args.ParentNavigation.GetNonRemovedDescendants(removedChildren);
if (args.ParentNavigation.IncludeChildrenOfRemovedNodesMode.Equals(IncludeChildrenOfRemovedNodesMode.OnlyInSelectedPath))
{
foreach (var descendant in nonRemovedDescendants)
{
if (args.ParentNavigation.IsPageInSelectedPath(args.ParentNavigation.RootPage, descendant, args.ParentNavigation.SelectedNavigationPage))
{
children.Add(descendant);
}
}
}
else
{
children.AddRange(nonRemovedDescendants);
}
}
if (children.Count > 0)
{
liClass = liClass + (liClass.Length > 0 ? " " : string.Empty) + "has-children";
aClass = aClass + (aClass.Length > 0 ? " " : string.Empty) + "has-children";
}
}
var li = args.NavigationItem as WebGenericControl;
if (liClass.Trim().Length > 0 && li != null)
{
li.CssClass = liClass;
}
// Find UI Control
var ancNavigationItem = args.ParentNavigation.GetNavigationAnchorDelegate(args);
if (ancNavigationItem == null)
{
throw new HttpException("The default implementation of PopulateNavigationItem requires at least one WebAnchor inside the ItemTemplate.");
}
ancNavigationItem.Visible = true;
ancNavigationItem.CssClass += " " + aClass;
if (string.IsNullOrEmpty(ancNavigationItem.Text))
{
ancNavigationItem.Text = args.ParentNavigation.GetNavigationItemNameDelegate(args);
}
if (!args.IsSelected || (args.IsSelected && args.ParentNavigation.SelectedPageClickable) || args.ParentNavigation.RootLevelNotClickable)
{
if (string.IsNullOrEmpty(ancNavigationItem.NavigateUrl))
{
if (args.ExpandingLevel && args.ParentNavigation.RootLevelNotClickable && args.SubNavigation != null)
{
args.NavigationItem.ID = HttpUtility.UrlEncode(args.SubNavigation.ClientID.Replace("_", string.Empty) + "Li");
if (li != null)
{
li.RenderId = true;
}
ancNavigationItem.NavigateUrl = "#" + args.NavigationItem.ID;
ancNavigationItem.Attributes.Add("onmousedown", "this.href=this.href+':stop';return true;");
ancNavigationItem.Attributes.Add("onclick", "if(this.href.substring(this.href.length - 5,this.href.length)==':stop'){this.href=this.href.substring(0,this.href.length-5);return false;}else{return true;}");
}
else
{
ancNavigationItem.NavigateUrl = args.ParentNavigation.GetNavigationItemLinkDelegate(args);
}
}
if (args.ParentNavigation.AlwaysPlaceSpanAroundNavItem)
{
var gnrNavigationItem = new WebGenericControl("span");
args.NavigationItem.Controls.AddAt(0, gnrNavigationItem);
gnrNavigationItem.Controls.Add(ancNavigationItem);
}
else
{
args.NavigationItem.Controls.AddAt(0, ancNavigationItem);
}
}
else
{
ancNavigationItem.InnerSpan = true;
ancNavigationItem.NoLink = true;
args.NavigationItem.Controls.AddAt(0, ancNavigationItem);
}
}
public abstract WebNavigation CreateWebNavigationControl(WebNavigationItemArgs args);
