To catch uploader error, you need to use CuteWebUI_AjaxUploader_OnTaskError or CuteWebUI_AjaxUploader_OnError event.
<%@ Page Language="C#" %>
<%@ Register TagPrefix="CuteWebUI" Namespace="CuteWebUI" Assembly="CuteWebUI.AjaxUploader" %>
<script type="text/javascript">
function CuteWebUI_AjaxUploader_OnError(msg)
{
alert("global error:"+msg);
return false;
}
function CuteWebUI_AjaxUploader_OnTaskError(obj,msg,reason)
{
alert("file error:"+obj.FileName+" , "+msg);
return false;
}
</script>
<script runat="server">
void Uploader_FileUploaded(object sender, UploaderEventArgs args)
{
args.MoveTo(Server.MapPath("~/Uploads/"));
}
</script>
<html>
<head>
</head>
<body>
<form runat="server" id="theForm">
<CuteWebUI:Uploader runat="server" ID="Uploader1"
InsertText="Upload File" OnFileUploaded="Uploader_FileUploaded">
</CuteWebUI:Uploader>
</form>
</body>
</html>