array List Sorting according to the file extension

Question

i am having some file names in array list Like, "Form.frm,Form1.frm,Form2.frm,Module.bas,Module23.bas" in the array list i want to make the first item as ".bas" files how can i make it using array list.

Could you be more specific about what you want the output to be? Also, is there any reason you're using an ArrayList instead of a List<string> -- ArrayList is obsolete. — user27414
– user27414, Commented Oct 30, 2012 at 13:05
Try having a look at this: stackoverflow.com/questions/188141/… Hope it helps. Also try to use List<T> instead of Arrays, they are easier to handle — jAC
– jAC, Commented Oct 30, 2012 at 13:06
this is an existing code. already they are using arrylist only. if i change arraylist to List<string> means it will affect so many place. — tgranjith
– tgranjith, Commented Oct 30, 2012 at 13:09
i am working on migrating tool vb to C# ".bas" files are like class file in vb. so that i want read class file first to fetch all the variables and function. — tgranjith
– tgranjith, Commented Oct 30, 2012 at 13:13

Tim Schmelter · Accepted Answer · 2012-10-30 13:24:04Z

5

First i would suggest to use the strongly typed List<T> instead. You can use Path.GetExtension and Linq's Enumerable.OrderBy:

List<String> files = new List<String>(){ "Form2.frm","Module.bas","Module23.bas" };
var ordered = files.OrderBy(fn => Path.GetExtension(fn));

edited Oct 30, 2012 at 13:24

answered Oct 30, 2012 at 13:06

Tim Schmelter

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Gustavo F · Accepted Answer · 2012-10-30 13:13:05Z

2

I understand that you want to order the items by the extension, this can be done in this way:

        List<string> fileNames = new List<string>();
        fileNames.Add("Form.frm");
        fileNames.Add("Form1.frm");
        fileNames.Add("Form2.frm");
        fileNames.Add("Module.bas");
        fileNames.Add("Module23.bas");

        var ordered = fileNames.OrderBy(p => Path.GetExtension(p));

answered Oct 30, 2012 at 13:13

Gustavo F

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1 Comment

Gustavo F Over a year ago

Damn 5 minutes of slow connection :(

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