problem enterprising controls .net

problem enterprising controls

hello all,

i'm wanting emanate enterprising controls, have insist viewstate opposing page loads. easy enough, right? i have re-create controls on any page load, controlling same ids. however, here's locate - prerender event, i'm wanting pristine controls collection, following reconstruct enterprising controls new values. reasons complicated, substantially take me page explain since i wish it. so, interests brevity, let's only assume i definitely contingency this, there's way.

the problem comes after i re-create controls prerender event. re-created controls never bond viewstate, values insist opposing page loads. i don't know since happens. i'm already re-creating controls onload event. i this, newly combined controls bond viewstate only fine, presumption i same ids each time. however, i try same thing prerender event, fails.

in any case, here instance formula :

namespace testframework.webcontrols
{

public category valuelinkbutton : linkbutton
{
    open twine value
    {
        get
        {
            relapse (string)viewstate[id + "vlbvalue"];
        }

        set
        {
            viewstate[id + "vlbvalue"] = value;
        }
    }
}

public category testcontrol : webcontrol
{
    stable overrule vacant onload(eventargs e)
    {
        base.onload(e);

        controls.clear();

        valuelinkbutton templink = null;

        templink = new valuelinkbutton();
        templink.id = "valuelinkbutton";
        templink.click += new eventhandler(value_click);

        (!page.ispostback)
        {
            templink.value = "old value";
        }

        controls.add(templink);
    }

    stable overrule vacant onprerender(eventargs e)
    {
        base.onprerender(e);

        valuelinkbutton templink = ((valuelinkbutton)findcontrol("valuelinkbutton"));  //[case 1]

        //valuelinkbutton templink = new valuelinkbutton();  [case 2]

        templink.id = "valuelinkbutton";
        templink.value = "new value";
        templink.text = "click";            

        controls.clear();
        controls.add(templink);
    }

    vacant value_click(object sender, eventargs e)
    {
        page.response.write("[" + ((valuelinkbutton)sender).value + "]");
    }
}

}

so, let's inspect box 1, where line unbroken [case 1] commented out, nonetheless line unbroken [case 2] commented out. here, all works only fine. i put control page bucket page, i couple says "click". i click link, page outputs calm "[new value]", unbroken line, informed "click" link. each subesquent i click "click" link, same thing. far, good.

but let's inspect box 2, where line unbroken [case 1] commented out, nonetheless line unbroken [case 2] commented out. here run problems. bucket page, "click" link. however, i click link, page outputs calm "[]" instead "[new value]". click eventuality banishment normally. however, "new value" calm i indifferent value charge control does persisted. once again, bit perplexity me. come, i reconstruct control onload, everything's glorious dandy, nonetheless i reconstruct control prerender, value doesn't persisted?

i feel there simply proceed this. i re-create control prerender, there proceed bond newly combined control viewstate?

i've struggled days. any assistance give me appreciated.

thanks.