How do I trap the click event of a link control in a RadNodeTemplate

[Aston]

How do I trap the click event of a link control in a RadNodeTemplate. The node is created in code seen below.

    Public Sub TreeInit()

       Dim newNode2 As New AttachmentFolderNode("FolderNode")

        Dim tvNodes As Telerik.Web.UI.RadTreeNodeCollection = RadTreeView1.Nodes
        tvNodes.Add(newNode2)


        RadTreeView1.DataBind()

    End Sub

Public Class AttachmentFolderNode
    Inherits RadTreeNode
    Dim tp As New AttachmentFolderNodeTemplate
    Public Sub New(nodeText As String)
        MyBase.Text = nodeText
        MyBase.ImageUrl = ".\Images\book.png"
        tp.InstantiateIn(Me)
    End Sub
End Class

Public Class AttachmentFolderNodeTemplate
    Implements System.Web.UI.ITemplate

    Public Overridable Sub InstantiateIn(container As Control) Implements ITemplate.InstantiateIn

        Dim img1 As New Image
        Dim img2 As New Image
        Dim lbl_space1 As New Label
        Dim lbl_space2 As New Label

        lbl_space1.Text = " "
        lbl_space2.Text = " "

        Dim label1 As New Label
        img1.ImageUrl = ".\Images\Close_Box.png"
        img2.ImageUrl = ".\Images\edit.png"

        Dim Link1 As New LinkButton
        img1.ImageUrl = ".\Images\edit.png"
        img1.ToolTip = "Edit"
        Link1.Controls.Add(img1)

        Dim Link2 As New LinkButton
        img2.ImageUrl = "\Images\Close_box.png"
        img2.ToolTip = "Delete"
        Link2.Controls.Add(img2)


        Dim rtn As RadTreeNode = DirectCast(container, RadTreeNode)
        label1.Text = rtn.Text
        AddHandler label1.DataBinding, AddressOf label1_DataBinding
        container.Controls.Add(label1)
        container.Controls.Add(lbl_space1)
        container.Controls.Add(Link1)
        container.Controls.Add(lbl_space2)
        container.Controls.Add(Link2)

    End Sub

[Boyan Dimitrov]

Hello,

An easy and convenient way to catch a click event from a control in your template would be to add a handler in the code behind for that specific control. In the code snippet below you could find a demonstration of creating a link button control and attach its click event to a specific handler. This way you can implement the desired behavior when user clicks on that link button.
//code behind

Public Sub InstantiateIn(container As Control)
           Dim Link1 As New LinkButton
           Link1.Text = "link button"
           AddHandler Link1.Click, AddressOf Link1_Click
           container.Controls.Add(Link1)
       End Sub
Private Sub Link1_Click(sender As Object, e As EventArgs)
            'here goes you custom logic
           Dim link As LinkButton = DirectCast(sender, LinkButton)
           link.Text = "Clicked"
       End Sub

Here you may find more information about adding templates to the RadTreeView control at runtime.

Regards,
Boyan Dimitrov
the Telerik team