Still using WebForms? Sick of magic string URLs that break when you move you ASPX pages around? Try this! I've created a class called UrlFor<TSomePage>. It examines the page class and figures out the URL by making a few assumptions about your aspx pages (the aspx file has the same name as the class, the namespaces match the folder structure, that kind of thing...)
public class UrlFor<TAspxPage>
where TAspxPage : Page
private static string baseUrl = typeof(TAspxPage).FullName.Substring("YourAppBaseNamespace".Length).Replace('.', '/') + ".aspx";
public Dictionary<string, string> QueryString = new Dictionary<string, string>();
public UrlFor<TAspxPage> Set<TValue>(Expression<Func<TAspxPage, TValue>> getProp, TValue value)
{
this.QueryString[((MemberExpression)getProp.Body).Member.Name] = value.ToString();
return this;
}
public override string ToString()
{
var qs = String.Join("&", this.QueryString.Select(pair =] pair.Key + "=" + HttpUtility.UrlEncode(pair.Value)).ToArray());
return baseUrl + (qs.Length ] 0 ? ("?" + qs) : String.Empty);
}
}
anyway, it lets you write things like this in your code:
[%= new UrlFor<Meetings.Details>().Set(d => d.WorkspaceId, 1).Set(d => d.MeetingId, 2) %>where Meeting.Details is a Page class with a property on it called MeetingId and one called WorkspaceId. This generates a url like
/Meetings/Details.aspx?WorkspaceId=1&MeetingId=2Of course your pages may not have properties that correspond to the querystring parameters, but you can always write an extension like
public static class UrlForExt
{
public static UrlFor<T> SetWorkspaceId<T>(this UrlFor<T> url, int value)
where T:WorkspacePage
{
url.QueryString["workspaceid"] = value.ToString();
return url;
}
}
and get the same effect by writing something like
new UrlFor<Default>().SetWorkspaceId(1)Neat huh!? Use this to build your links and you can rename and move your pages to your hearts content!
