How to safely format URL

Question

I have a SharePoint application that uses a URL to access a resource.

code:

return web.GetList(web.ServerRelativeUrl + "/lists/UserSettings");

This works fine when I'm on a subsite, because ServerRelativeUrl will return "/sitename"

However, when this is a root site, ServerRelativeUrl will return "/" instead, leading to a poorly formed URL such as "//lists/UserSettings"

I know this seems like a simple problem (and it is) but is there a best practice for approaching this situation that is consistently safe?

Daniel A. White · Accepted Answer · 2012-10-02 20:37:17Z

1

Have you seen the System.Uri and System.UriBuilder classes?

answered Oct 2, 2012 at 20:37

Daniel A. White

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1 Comment

Wesley Over a year ago

Either way I get an exception of : "Invalid URI: The hostname could not be parsed."

Joe · Accepted Answer · 2012-10-02 23:43:10Z

1

new Uri(web.ServerRelativeUrl, "/lists/UserSettings");

Okay, hrm...try:

Path.Combine(web.ServerRelativeUrl, "/lists/UserSettings");

edited Oct 2, 2012 at 23:43

answered Oct 2, 2012 at 20:37

Joe

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3 Comments

Wesley Over a year ago

This doesn't work, because web.ServerRelativeUrl is (not intuitively) a string. Trying to put the full string in gives me an exception of "Invalid URI: The hostname could not be parsed."

Joe Over a year ago

What does the string version look like?

Wesley Over a year ago

If the site is a root-site, it simply returns "/", which forms something like: "//lists/UserSettings", which is the invalid URI

Dmitry Kozlov · Accepted Answer · 2012-10-07 11:29:23Z

1

Use absolute url, this works for me: web.GetList(web.Url + "/lists/UserSettings")

answered Oct 7, 2012 at 11:29

Dmitry Kozlov

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Comments

user1786949 · Accepted Answer · 2013-10-29 19:33:28Z

return web.GetList( (web.ServerRelativeUrl == "/" ? string.Empty : web.ServerRelativeUrl) + "/lists/UserSettings");

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