Hi

I am using

Infragistics35.WebUI.UltraWebToolbar.v10.2, Version=10.2.20102.2040

then I create a new asp.net page with a UltraWebToolbar

aspx code

<!

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

%>

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

<

="server">

>

="server"/>

</

>

<

>

="server">

>

='server'>

</

>

>

>

</

>

</

>

no code at aspx.cs

then when I visit this page , it will raise a error

error message

Error Strack:
System.Web.HttpUnhandledException (0x80004005): Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.FormatException: Input string was not in a correct format. at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) at System.Convert.ToInt32(String value) at Infragistics.WebUI.UltraWebToolbar.UltraWebToolbar.getRenderer() at Infragistics.WebUI.UltraWebToolbar.UltraWebToolbar.OnPreRender(EventArgs e) at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.usercontrol_test_text_aspx.ProcessRequest(HttpContext context) in c:\Users\jyin\AppData\Local\Temp\8\Temporary ASP.NET Files\avionte.web.portal\50522145\ef3fab6f\App_Web_h4fcfn3v.2.cs:line 0 at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

can you help me out ?