Get file from any library in the web tree

Question

Is it possible to use some built in SharePoint API to open a file no matter which web and library it's in?

Example:

Given the file: /subsiteA/PublishingImages/myimage.jpg I want to open it and get the list item, but using this fails:

var url = "/subsiteA/PublishingImages/myimage.jpg";
var file = SPContext.Current.Site.RootWeb.GetFile(url);
SPListItem item = file.GetListItem(); //Fails here with item not in library error

Naturally it will not work as the file is not located in the root web, but is there a generic way to locate the file no matter which web and library it's in and retrieve the SPListItem object related to the file?

Answer 1

Very similar to above, the SPSite object does actually remember the URL it was opened with - so you don't have to give a Web name. You should be able to use something like:

string url= "Full URL to File";
using (SPSite site = new SPSite(url)){
  using (SPWeb web = site.OpenWeb()) 
  { 
    SPFile file = web.GetFile(url); 
    SPListItem item = file.ListItemAllFields; 
  }      
}

Answer 2

I don't think it is possible to get file in such a way. I also really wanted to know if possible.

Other way, you have to code like:

using (SPSite site = new SPSite("yoursiteurl")){

using (SPWeb web = site.OpenWeb("subsiteA"))
 {
    SPFile file = web.GetFile("/subsiteA/PublishingImages/myimage.jpg");
    SPListItem item = file.ListItemAllFields;
 }

}