[Solved] EnableSkinTransparency is not a member of RadAjaxLoadingPanel

[Eric]

I am just trying to get a RadAjaxLoadingPanel to work on one of my pages.  Whenever I put one on a page, nothing ever shows up, so I copied the code from the LoadingImages demo and when I try to run it I get the above error.

I also get AjaxLoadingPanelBackgroundPosition is not defined.

Code is copied right from the demo:

testload.aspx:

<%

@ Page Language="VB" AutoEventWireup="false" CodeFile="testload.aspx.vb" Inherits="LoadingImages_testload" %>

 

<%

@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

 

<!

 

DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

 

<

 

html xmlns="http://www.w3.org/1999/xhtml">

 

<

 

head runat="server">

 

 

<title>Untitled Page</title>

 

</

 

head>

 

<

 

body>

 

 

<form id="form1" runat="server">

 

 

<div>

 

 

<telerik:RadScriptManager ID="ScriptManager1" runat="server" />

 

 

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel2" runat="server" Height="75px"

 

 

Width="75px">

 

 

<img alt="Loading..." src='<%= RadAjaxLoadingPanel.GetWebResourceUrl(Page, "Telerik.Web.UI.Skins.Default.Ajax.loading.gif") %>'

 

 

style="border: 0px;" />

 

 

</telerik:RadAjaxLoadingPanel>

 

 

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

 

 

<AjaxSettings>

 

 

<telerik:AjaxSetting AjaxControlID="Panel1">

 

 

<UpdatedControls>

 

 

<telerik:AjaxUpdatedControl ControlID="Panel1" LoadingPanelID="RadAjaxLoadingPanel1" />

 

 

</UpdatedControls>

 

 

</telerik:AjaxSetting>

 

 

</AjaxSettings>

 

 

</telerik:RadAjaxManager>

 

 

<div class="bigModule">

 

 

<div class="bigModuleBottom">

 

 

<p>

 

 

<b>RadAjaxLoadingPanel</b> supports skinning and you can change its skin by setting

 

the

<b>Skin</b> property to the name of the respective skin. A <b>BackgroundPosition</b>

 

property enables you to position the loading image in the loading panel. The

<b>EnableSkinTransparency</b>

 

property allows you to enable/disable default skin transparency.

</p>

 

 

<p>

 

Please note that the loading images that are currently embedded in the Telerik.Web.UI assembly will not be available after Q1 2009.

 

</p>

 

 

<br />

 

 

</div>

 

 

</div>

 

 

<div class="module" style="width: 330px; height: 250px; float: left;">

 

 

<asp:CheckBox ID="CheckBox1" runat="server" Text="EnableSkinTransparency" Checked="true"

 

 

AutoPostBack="true" OnCheckedChanged="CheckBox1_CheckedChanged" /><br />

 

Change Background Position:

 

<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="true" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">

 

 

<asp:ListItem>Bottom</asp:ListItem>

 

 

<asp:ListItem>BottomLeft</asp:ListItem>

 

 

<asp:ListItem>BottomRight</asp:ListItem>

 

 

<asp:ListItem Selected="True">Center</asp:ListItem>

 

 

<asp:ListItem>Left</asp:ListItem>

 

 

<asp:ListItem>None</asp:ListItem>

 

 

<asp:ListItem>Right</asp:ListItem>

 

 

<asp:ListItem>Top</asp:ListItem>

 

 

<asp:ListItem>TopLeft</asp:ListItem>

 

 

<asp:ListItem>TopRight</asp:ListItem>

 

 

</asp:DropDownList>

 

 

</div>

 

 

<div class="module1" style="float: right;">

 

 

<asp:Panel ID="Panel1" runat="server" Width="350px" Height="275px">

 

 

<asp:Button ID="Button1" runat="server" Text="Click to see the loading image" OnClick="Button1_Click"

 

 

Style="margin-top: 15px; margin-left: 15px" CssClass="qsfButtonBigger" />

 

 

</asp:Panel>

 

 

</div>

 

 

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server">

 

 

</telerik:RadAjaxLoadingPanel>

 

 

</div>

 

 

</form>

 

</

 

body>

 

</

 

html>

 

tesload.aspx.vb:

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

 

Telerik.Web.UI

 

Partial

 

Class LoadingImages_testload

 

 

Inherits System.Web.UI.Page

 

 

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs)

 

 

'simulate longer page load

 

System.Threading.Thread.Sleep(2000)

 

End Sub

 

 

Protected Sub CheckBox1_CheckedChanged(ByVal sender As Object, ByVal e As EventArgs)

 

RadAjaxLoadingPanel1.EnableSkinTransparency = (

TryCast(sender, CheckBox)).Checked

 

 

End Sub

 

 

Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)

 

 

Dim position As New AjaxLoadingPanelBackgroundPosition()

 

 

If DropDownList1.SelectedValue = "Bottom" Then

 

position = AjaxLoadingPanelBackgroundPosition.Bottom

 

End If

 

 

If DropDownList1.SelectedValue = "BottomLeft" Then

 

position = AjaxLoadingPanelBackgroundPosition.BottomLeft

 

End If

 

 

If DropDownList1.SelectedValue = "BottomRight" Then

 

position = AjaxLoadingPanelBackgroundPosition.BottomRight

 

End If

 

 

If DropDownList1.SelectedValue = "Center" Then

 

position = AjaxLoadingPanelBackgroundPosition.Center

 

End If

 

 

If DropDownList1.SelectedValue = "Left" Then

 

position = AjaxLoadingPanelBackgroundPosition.Left

 

End If

 

 

If DropDownList1.SelectedValue = "None" Then

 

position = AjaxLoadingPanelBackgroundPosition.None

 

End If

 

 

If DropDownList1.SelectedValue = "Right" Then

 

position = AjaxLoadingPanelBackgroundPosition.Right

 

End If

 

 

If DropDownList1.SelectedValue = "Top" Then

 

position = AjaxLoadingPanelBackgroundPosition.Top

 

End If

 

 

If DropDownList1.SelectedValue = "TopLeft" Then

 

position = AjaxLoadingPanelBackgroundPosition.TopLeft

 

End If

 

 

If DropDownList1.SelectedValue = "TopRight" Then

 

position = AjaxLoadingPanelBackgroundPosition.TopRight

 

End If

 

RadAjaxLoadingPanel1.BackgroundPosition = position

 

End Sub

 

End

 

Class

 

[Iana Tsolova]

Hi Eric,

The mentioned properties are available for RadAjaxLoadingPanel since the RadControls for ASP.NET AJAX Q1 2009 version. Could you confirm the you are using this or later version of the controls in the problematic web site?

Kind regards,
Iana
the Telerik team

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