ASP.NET / DropDownlist JavaScript Problem

[bungpeng]

How can I get my JavaScript-added items to appear when I get to the .NET world?

I have an ASP.NET DropDownList server control which gets populated on the client side via JavaScript, like so:

var oOption = document.createElement('OPTION');
oOption.value = sText;
oOption.text = sText;
listbox.options.add(oOption);

When a postback occurs (via another control--this control does not have AutoPostBack set), this ListBox doesn't contain crap. It's empty.

I've tried checking it for contents in Page_Load() and in some of the handlers. Nowhere does it seem to arrive with the items I added through JavaScript.

 

[Joe Mamma]

check your request string

 

[bungpeng]

check your request string

Request string return nothing...
any other solution?

 

[bri189a]

Your looking at building a custom control to do this...

 

[bungpeng]

Your looking at building a custom control to do this...

custom control? how the custom control look like?

 

[HJB417]

I'm new to javascript but I would check the HttpRequest.Form and try it with the viewstate enabled and disabled, to so if that will also make a difference.

 

[bungpeng]

it is not working... i had use both methods, I found that there is no different when I disable or enable the viewstate in control's properties

 

[HJB417]

alternative
what if you create a hidden input and add the values to there? try with the runat attribute set to server and with the runat attribute removed.

 

[bungpeng]

alternative
what if you create a hidden input and add the values to there? try with the runat attribute set to server and with the runat attribute removed.

what do you mean that?

My solution is using hidden input to keep my value,
but it is quite manual, so I looking for better way

 

[HJB417]

Request.Form will contain the selected value of the drop down list.