Calling onserverclick from input type:file fails in Internet Explorer
<p>below are the code in my aspx files, i am trying to call onserverclick of hdnBtn from hdnBtn.click()</p>

<p>the code belows work in Firefox and Chrome but not working in IE, any idea why? thx for helping</p>

<pre><code>  protected void Page_Load(object sender, EventArgs e)
  {
      btnBrowse.Attributes.Add("onclick", file1.ClientID + ".click()");
      file1.Attributes.Add("onchange", hdnBtn.ClientID + ".click()");
  }

input runat="server" id="btnBrowse" type="button" value="..." class="lookupBtn" 
      disabled=true 

input style="visibility:hidden" type="file" runat="server" name="file1" id="file1" 

input style="visibility:hidden" type="button" runat="server" name="hdnBtn" 
      id="hdnBtn" value="" onserverclick="btnLookUpFile_Click"
</code></pre>
