SiteMapNodeCollection.AddRange Method
Definition
Important
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Adds a set of SiteMapNode objects to the collection.
Overloads
| AddRange(SiteMapNode[]) |
Adds an array of type SiteMapNode to the collection. |
| AddRange(SiteMapNodeCollection) |
Adds the nodes in the specified SiteMapNodeCollection to the current collection. |
AddRange(SiteMapNode[])
Adds an array of type SiteMapNode to the collection.
public:
virtual void AddRange(cli::array <System::Web::SiteMapNode ^> ^ value);public virtual void AddRange (System.Web.SiteMapNode[] value);abstract member AddRange : System.Web.SiteMapNode[] -> unit
override this.AddRange : System.Web.SiteMapNode[] -> unitPublic Overridable Sub AddRange (value As SiteMapNode())Parameters
- value
- SiteMapNode[]
An array of type SiteMapNode to add to the current SiteMapNodeCollection.
Exceptions
value is null.
The SiteMapNodeCollection is read-only.
Remarks
The array that is passed to the AddRange method can contain null values; however, this leads to unexpected exceptions when the SiteMapNodeCollection collection is manipulated.
You cannot add a SiteMapNode object to a read-only or fixed-size SiteMapNodeCollection. You can test whether a SiteMapNodeCollection is read-only by checking the IsReadOnly property.
See also
Applies to
AddRange(SiteMapNodeCollection)
Adds the nodes in the specified SiteMapNodeCollection to the current collection.
public:
virtual void AddRange(System::Web::SiteMapNodeCollection ^ value);public virtual void AddRange (System.Web.SiteMapNodeCollection value);abstract member AddRange : System.Web.SiteMapNodeCollection -> unit
override this.AddRange : System.Web.SiteMapNodeCollection -> unitPublic Overridable Sub AddRange (value As SiteMapNodeCollection)Parameters
- value
- SiteMapNodeCollection
A SiteMapNodeCollection that contains the SiteMapNode objects to add to the current SiteMapNodeCollection.
Exceptions
value is null.
The SiteMapNodeCollection is read-only.
Examples
The following code example demonstrates how to create a modifiable SiteMapNodeCollection collection, and then add SiteMapNode objects to it using the AddRange method.
// Create a SiteMapNodeCollection with all the nodes
// from the first two hierarchical levels of the current
// site map.
SiteMapNodeCollection baseCollection =
new SiteMapNodeCollection(SiteMap.RootNode);
SiteMapNodeCollection childCollection =
SiteMap.RootNode.ChildNodes;
baseCollection.AddRange(childCollection);
Response.Write( "<BR>Derived SiteMapNodeCollection.<BR><HR><BR>");
foreach (SiteMapNode node in baseCollection) {
Response.Write( node.Title + "<BR>");
}
' Create a SiteMapNodeCollection with all the nodes
' from the first two hierarchical levels of the current
' site map.
Dim baseCollection As SiteMapNodeCollection
baseCollection = New SiteMapNodeCollection(SiteMap.RootNode)
Dim childCollection As SiteMapNodeCollection = SiteMap.RootNode.ChildNodes
baseCollection.AddRange(childCollection)
Response.Write( "<BR>Derived SiteMapNodeCollection.<BR><HR><BR>")
For Each node In baseCollection
Response.Write( node.Title + "<BR>")
Next
Remarks
The SiteMapNodeCollection collection that is passed to the AddRange method can contain null SiteMapNode objects; however, this leads to unexpected exceptions when the SiteMapNodeCollection is manipulated.
You cannot add a SiteMapNode object to a read-only or fixed-size SiteMapNodeCollection. You can test whether a SiteMapNodeCollection is read-only by checking the IsReadOnly property.
