hi RonR,
Please try the example below. Upload a large file to fire the error.
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void b1_Click(object sender, EventArgs e)
{ //add you server side method here
lbErrorMessage.Text = "server side error message";
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>example</title>
</head>
<body>
<form id="form1" runat="server">
<CuteWebUI:UploadAttachments ID="attachemnt1" runat="server">
<ValidateOption MaxSizeKB="100" />
</CuteWebUI:UploadAttachments>
<asp:Label ID="lbErrorMessage" runat="server"></asp:Label>
<asp:Button ID="b1" runat="server" Style="visibility: hidden" OnClick="b1_Click" />
</form>
</body>
</html>
<script>
function CuteWebUI_AjaxUploader_OnError(msg)
{
var b1=document.getElementById("<%= b1.ClientID %>");
b1.click();
return false;
}
</script>
Regards,
Ken