ASP.NET webform Fileupload inside an ascx which is inside an updatepanel in the aspx -

ASP.NET webform Fileupload inside an ascx which is inside an updatepanel in the aspx -

here code in page :

<asp:updatepanel id="updatepaneleqselector" runat="server" updatemode="conditional"> <contenttemplate> <uc12:eqselector id="custeqselector" oneqchange="custeqselector_oneqchange" runat="server" /> </contenttemplate> </asp:updatepanel>

inside user control, i'm asked add together fileuploader. after coding simply, tested , fileuploader empty. i've searched while , discovered normal behavior. solution create work add together postbacktrigger updatepanel.

when tested in aspx page, achieved , fileuploader had file. tried add together dynamically (to in control), worked :

postbacktrigger trigger = new postbacktrigger(); trigger.controlid = this.btntest.id; this._updatepaneleqselector.triggers.add(trigger);

but can't manage create code work in command (i passed updatepanel parameter command set in load, fileupload empty)

do see solution ?

thanks

does postback, leaves command empty? or not posting @ all. if it's not posting @ i'd add together this

scriptmanager.getcurrent(this).registerpostbackcontrol(btntest);

to page_load of user control.

if posting back, command empty, i'd wager there dodgy html somewhere on page , values getting lost.

asp.net webforms