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Razor question on how to get something like a substring where i Remove the filename from a path

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Hans Ravnsfjall
Hans Ravnsfjall
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Posted on 21/12/2016 09:03:21

Sorry for my lack of Razor knowledge, but my mission is

I have a field that has a complete path to a file  like /Files/Images/Ognir/Vagar/Gardsvegur_22_Sorvagur/00.JPG

Now, i want to get the value of the path minus the filename and extension. So my output would be /Files/Images/Ognir/Vagar/Gardsvegur_22_Sorvagur

I have tried to google a solution for how to do this in Razor, but no luck - and since I am under time pressure, i´am trying a bit of a long shot, and hope some of you will grant me an early Christmas gift and indicate a solution.

Any help is really apreciated.

Thanks in advance.

 

br Hans


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Imar Spaanjaars Dynamicweb Employee
Imar Spaanjaars
Posted on 21/12/2016 09:13:41
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This post has been marked as an answer

Something like this should work:

string input = "/Files/Images/Ognir/Vagar/Gardsvegur_22_Sorvagur/00.JPG";
string folder = input.Substring(0, input.LastIndexOf("/"));

LastIndexOf gets the numeric position of the last occurence of the /. Then SubString takes the original string starting at 0 up to the last index of the /, giving you /Files/Images/Ognir/Vagar/Gardsvegur_22_Sorvagur

You could use it as-is if you know that your path always has a / in it. Otherwise, you need to create a helper method that checks the string and returns an emtpy string when you can't extract a valid path from its value.

 

Votes for this answer: 1
 
Hans Ravnsfjall
Hans Ravnsfjall
Posted on 21/12/2016 09:15:00
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Thanx a lot Imar. I will try that.

 
Hans Ravnsfjall
Hans Ravnsfjall
Posted on 03/01/2017 18:27:04
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Hi Again

 

I am trying to grab this inside an foreach loop, and theres proably a whole lot wrong with my code, but maybe anyone would be so kind to indicate what I am doing wrong?

 

My code is

 

@foreach (LoopItem i in GetLoop("Products")){
        

string input = i.GetValue("Ecom:Product:Field.Images.Clean");
string folder = input.Substring(0, input.LastIndexOf("/"));


   foreach(var file in GetLoop(folder.ListOfFiles)){

    GetValue(folder)/@file.GetValue(folder.FileName);
 
    }
 

      
    }

 

 

 
Hans Ravnsfjall
Hans Ravnsfjall
Posted on 03/01/2017 19:31:25
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Error message I get is:

Line 28: Cannot implicitly convert type 'object' to 'string'. An explicit conversion exists (are you missing a cast?)
Line 32: 'string' does not contain a definition for 'ListOfFiles' and no extension method 'ListOfFiles' accepting a first argument of type 'string' could be found (are you missing a using directive or an assembly reference?)
 
Hans Ravnsfjall
Hans Ravnsfjall
Posted on 03/01/2017 22:49:06
Reply

Solved it with this


 
@foreach (LoopItem i in GetLoop("Products")){


    string input = i.GetValue("Ecom:Product:Field.Images.Clean").ToString();
if (input != "") {
string domain = "http://www.skyn.fo";
string comma = ", ";
 string folder = input.Substring(0, input.LastIndexOf("/")).ToString();
string folderOnDisk = System.Web.HttpContext.Current.Server.MapPath(folder);
  var directoryInfo = new System.IO.DirectoryInfo(folderOnDisk);
  foreach (var fileInfo in directoryInfo.GetFiles("*.jpg")){
@domain@(string.Format("{0}/{1}", folder,  fileInfo.Name))@comma

              }
        }
    }

 

 

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