Add quicklaunch link with querystring parameter programatically

Question

I want to add some links to Quicklaunch bar. The link needs to have query string parameters, eg.: /sites/project/default.aspx?mode=filter

string url = "/sites/project/default.aspx?mode=filter";
string title = "Filter";

SPNavigationNodeCollection quickLaunch = web.Navigation.QuickLaunch;
SPNavigationNode newnode = new SPNavigationNode(title, url, false);
web.Navigation.QuickLaunch.AddAsLast(newnode);

Unfortunatelly, this code adds quicklaunch link without the parameter, ie.: /sites/project/default.aspx.

What is correct way to add link with params from code?

Answer 1

In the SPNavigationNode make the isExternal variable as true . Check this article Link

Answer 2

I know this is quite old post, but setting IsExternal to true works.. but isn't the correct way of adding Query String..

Here is how you add a Query String:

string url = "/sites/project/default.aspx";
string title = "Filter";

SPNavigationNodeCollection quickLaunch = web.Navigation.QuickLaunch;
var newNode = new SPNavigationNode(title, url, false);
quickLaunch.AddAsLast(newNode);
newNode.Properties["UrlQueryString"] = "mode=filter";
newNode.Update();

Reference:

programmatically passing navigation node url with querystring