Commented Issue: Sys.Extended is undefined when trying to wire client side events [26751]

Hello. I am trying to use the AsyncFileUpload control from the toolkit. When I don't try to hook any client side events, the control works as expected and uploads without issue. When I try to hook any client side events (, I see this in the javascript error console:

Error: Sys.Extended is undefined

I have a ToolkitScriptManager on the page so I'm not sure what else I should be doing.

Thanks


Comments: Hope it helps to reproduce. Steps to reproduce: Browser: Firefox 34.0.5 + firebug AjaxControlToolkit version: 7.1005.0 (lastest version cannot be installed due to dependencies not running on 3.5 framework) Nuget console: Install-Package AjaxControlToolkit -Version 7.1005.0 Proyect .NET framework version: 3.5 Control added programatically: FilteredTextBoxExtender Properties set to control: ``` C# // Extender added inside a user control. AjaxControlToolkit.FilteredTextBoxExtender ftb = new AjaxControlToolkit.FilteredTextBoxExtender(); ftb.ID = "fte_" + txt.UniqueID + "_extender"; ftb.TargetControlID = txt.ID; ftb.FilterType = AjaxControlToolkit.FilterTypes.Numbers | AjaxControlToolkit.FilterTypes.Custom; ftb.ValidChars = ","; ftb.Enabled = true; container.Controls.Add(ftb); ``` Firebug console error: TypeError: Sys.Extended is undefined Buggy javascript code: ``` Javascript Sys.Application.add_init(function() { $create(Sys.Extended.UI.FilteredTextBoxBehavior, {"FilterType":3,"ValidChars":",","id":"ctl00_MainContent_ucPP_gridPP_gridPlanificacionPP_ctl00_ctl04_fte_ctl00_MainContent_ucPP_gridPP_gridPlanificacionPP_ctl00_ctl04_txtctl00_MainContent_ucPP_gridPP_columna_Diccionario_2014_10_extender"}, null, null, $get("ctl00_MainContent_ucPP_gridPP_gridPlanificacionPP_ctl00_ctl04_txtctl00_MainContent_ucPP_gridPP_columna_Diccionario_2014_10")); }); ```