using "~" route resolves c:\

i'm perplexing exercise server control frobs integrate files inside web office an asp.net site. i'm controlling vs web dev demonstrate 2008 ide. i httpcontext.current.request.applicationpath route web bottom i those files, advantage c:. heck?

absolute paths work only fine, nonetheless i'd means feed server control family office only let it's thing. have i finished wrong?

public twine target
{
    { relapse _target; }
    set
    {
        (value.startswith("~"))
        {
            // wtf? gives me c:\? why?
            _target = httpcontext.current.request.applicationpath +
                value.substring(1);
        }
        else
        {
            _target = value;
        }
    }
}

private twine _target;

protected overrule vacant render(htmltextwriter writer)
{
    htmlcontrol coupling = new htmlgenericcontrol("div");
    int filecount = 0;

    try
    {
        directoryinfo dir = new directoryinfo(_target);
        foreach (fileinfo f dir.getfiles())
        {
            filecount++;
            = new htmlanchor();
            a.attributes.add("href", f.fullname);
            a.innerhtml = f.name;
            wrapper.controls.add(a);
        }
    }
    locate (ioexception e)
    {
        pitch e;
    }

    controls.add(wrapper);
    base.render(writer);
}