I’m afraid that WebTextEditor 1 has now been discontinued for several years and there are not going to be any further updates for it. I tried to reproduce the problem in my local tests by modifying InitialFileCount.aspx sample page (one of WebFileUploader sample page) based on the given TestUpload.aspx; and view the page uses WebTextEditor 2 build 5 assembly but my efforts were not successful.

Could you please re-test the problem using WebTextEditor 2 assembly and let me know whether the problem still persist or not? If the problem persist, please execute following JS code
Please note that it is strongly suggested to use the latest build of WebUI.NET Framework 3 too.

function button1_onclick()
{
    var wfu = ISGetObject("WebFileUploader1");

    alert(wfu.GUID);
    alert(document.getElementById("ctl00_content_WebFileUploader1_x").innerHTML);

    return true;
}

and inform me the information below.

• doctype (for example: html5 doctype; or xhtml transitional doctype; etc)
• browser version (for example: IE 11; Firefox 29; etc)

Dear Yudi,

thanks for you help. i have solved it. Because of the following two lines of code caused by misplaced.

<add name="WebFileUploaderHttpHandler.axd_GET" path="WebFileUploaderHttpHandler.axd" verb="GET" type="ISNet.WebUI.WebTextEditor.WebFileUploaderHttpHandler, ISNet.WebUI.WebTextEditor" preCondition="integratedMode"/>

<add name="WebFileUploaderHttpModule" type="ISNet.WebUI.WebTextEditor.WebFileUploaderHttpModule, ISNet.WebUI.WebTextEditor"/>

Before I was on the 'system.web' node, right node should be in 'system.server'.

We have recently upgraded all Intersoft components, if we have questions,  I or my colleagues will contact you sales colleagues.

Glad to hear that declaring the WebFileUploader handler and WebFileUploader module under configuration/system.webserver (web.config) solve the reported problem.

I’m sure that the solution will be useful for other member who has similar question with yours.

Should you need further assistance or run into any problems regarding our controls, feel free to post it into our forum. We would be happy to assist you again.