RadMenu with images reload and very slow

[Edgar]

I use RadMenu Control with Images (icons) from a table in the database and works fine. the problem is that every time I load a web page, the menu is reloaded and becomes very slow. 
Please can you help me resolve this issue. thanks 


Public Class Site1
    Inherits System.Web.UI.MasterPage

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Not IsPostBack Then

            'enlazo el control de menú al DataTable
            Me.RadMenuPrincipal.DataSource = CargarMenu()
            Me.RadMenuPrincipal.DataFieldID = "ID_MODULO"
            Me.RadMenuPrincipal.DataFieldParentID = "ID_MODULO_PADRE"
            Me.RadMenuPrincipal.DataTextField = "NOMBRE_MODULO"
            Me.RadMenuPrincipal.DataValueField = "ID_MODULO"
            Me.RadMenuPrincipal.DataNavigateUrlField = "LINK_PAGINA"

            Me.RadMenuPrincipal.DataBind()

        End If
    End Sub


    Private Sub RadMenuPrincipal_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadMenuEventArgs) Handles RadMenuPrincipal.ItemDataBound
        'Set additional properties. ToolTip for example:  
        Dim row As DataRowView = CType(e.Item.DataItem, DataRowView)
        e.Item.ToolTip = row("Tooltip").ToString()
        e.Item.ImageUrl = row("LINK_IMAGEN").ToString()
    End Sub
End Class

[Kate]

Hi Edgar,

I noticed that you send us a support ticket regarding the same question. Here I will also post my answer in case anyone else has the same issue:

One approach that I could suggest is that you use the control in a custom user control with OutputCache enabled as described in the following help article - Use RadMenu in a user control with OutputCache enabled. You can also refer to the following post where you can also find some useful tips for better performance when using our controls - How Telerik’s ASP.NET AJAX Controls Help You Build High-Performing Apps Faster

All the best,
Kate
the Telerik team