defaultvb.aspx.vb

Telerik是很大的第三方软件制造商

Imports System
Imports System.Collections
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Web
Imports System.Web.SessionState
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.HtmlControls
Imports System.Data.OleDb
Imports Telerik.QuickStart
Imports Telerik.WebControls

'/ <summary>
'/ Summary description for _Default.
'/ </summary>
Namespace Telerik.TreeViewExamplesVBNET.DataBinding
    Public Class DefaultVB
        Inherits XhtmlPage
        Protected WithEvents RadTree1 As RadTreeView


        Private Sub GenerateTreeView()
            Dim dbCon As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("~/TreeView/Data/Tree.mdb"))
            dbCon.Open()

            Dim adapter As New OleDbDataAdapter("SELECT * FROM Links", dbCon)
            Dim ds As New DataSet()
            adapter.Fill(ds)

            RadTree1.DataFieldID = "id"
            RadTree1.DataFieldParentID = "parentId"

            RadTree1.DataSource = ds
            RadTree1.DataBind()
        End Sub 'GenerateTreeView


        Private Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
            If Not Page.IsPostBack Then
                GenerateTreeView()
            End If
        End Sub 'Page_Load

#Region "Web Form Designer generated code"

        Protected Overrides Sub OnInit(ByVal e As EventArgs)
            '
            ' CODEGEN: This call is required by the ASP.NET Web Form Designer.
            '
            InitializeComponent()
            MyBase.OnInit(e)
        End Sub 'OnInit


        '/		Required method for Designer support - do not modify
        '/		the contents of this method with the code editor.
        '/ </summary>
        Private Sub InitializeComponent()
        End Sub 'InitializeComponent

#End Region

        Private Sub RadTree1_NodeBound(ByVal o As Object, ByVal e As Telerik.WebControls.RadTreeNodeEventArgs) Handles RadTree1.NodeBound
            Dim row As DataRow = e.NodeBoundDataRow
            Dim node As RadTreeNode = e.NodeBound

            node.Expanded = True
        End Sub 'RadTree1_NodeBound
    End Class 'DefaultCS
End Namespace