Question

I have Created a Asp:FileUpload control in aspx page, I try to access the Control from Javascript using this code,

in Aspx page

<asp:FileUpload ID="fileUp" runat="server" />

in Javascript

var vbsfileupload = $find("<%= fileUp.ClientID %>");

but the vbsfileupload is always null value.

Please help me to resolve this issue.

Answer 1

I don’t believe $find is a function at all. Try selecting the element using getElementById:

var vbsfileupload = document.getElementById("#<%= fileUp.ClientID %>");

Assuming you are running this part of the script after the element has loaded, vbsfileupload should now hold the desired element.