docs(navigation): access data item

Author: Marin Bratanov

controls/navigation/server-side-programming/events/nodedatabound.md

@@ -10,7 +10,6 @@ position: 1
 
 # NodeDataBound
 
-## 
 
 The **NodeDataBound** event occurs for each new node that is added to the **Nodes** collection of the Navigation when it is bound.This event only occurs if the nodes are loaded from a data source (the **DataSource** or **DataSourceID** property is set).
 
@@ -26,7 +25,9 @@ The **NodeDataBound** event handler receives two arguments:
 
 1. An EventArgs object. This object has an **Node** property, which provides access to the node that was just bound. This item, in turn, has a **DataItem** property,which lets you access the item in the data source to which the **NavigationNode** is being bound.
 
-Use the **NodeDataBound** event handler to make changes to items as they are bound to the data.For example, you can set custom attributes based on other fields in the DataItem:
+Use the **NodeDataBound** event handler to make changes to items as they are bound to the data. For example, you can set custom attributes based on other fields in the DataItem:
+
+>caption Example 1: Modifying a node based on a condition.
 
 ````ASPNET
 <telerik:RadNavigation runat="server" ID="RadNavigation1" OnNodeDataBound="RadNavigation1_NodeDataBound" />
@@ -49,6 +50,30 @@ Protected Sub RadNavigation1_NodeDataBound(sender As Object, e As NavigationNode
 End Sub
 ````
 
+>caption Example 2: Accessing the Data Item of a node by casting it to the appropriate class.
+
+````C#
+protected void RadNavigation1_NodeDataBound(object sender, Telerik.Web.UI.NavigationNodeEventArguments e)
+{
+	//if bound to something like an SqlDataSource
+    //DataRowView dataSourceRow = (DataRowView) e.Node.DataItem;
+
+	//if bound to a custom object, like through an ObjectDataSource
+	//SiteDataItem is the type of this custom object
+    //SiteDataItem itm = e.Node.DataItem as SiteDataItem;
+}
+````
+````VB
+Protected Sub RadNavigation1_NodeDataBound(sender As Object, e As Telerik.Web.UI.NavigationNodeEventArguments)
+	'if bound to something like an SqlDataSource
+	Dim dataSourceRow As DataRowView = DirectCast(e.Node.DataItem, DataRowView)
+
+	'if bound to a custom object, like through an ObjectDataSource
+	'SiteDataItem is the type of this custom object
+	Dim itm As SiteDataItem = TryCast(e.Node.DataItem, SiteDataItem)
+End Sub
+````
+
 
 # See Also