Sorting A Custom List C#

Question

I have a list of windows but it is not in the order I want them. I'm able to get the windows into string from the title - they are being put into a list of windows. I want to sort this list in a specific order with Estimate 1st, Control Center 2nd, and Login 3rd. This is the order I desire. I have know idea on how to go about it but I want to sort it before it goes into the foreach loop.

    private void CloseMainWindows(IEnumerable<Window> Windows)
    {
        var winList = Windows.ToList();

        winList.Sort()//This is where I want to sort the list. 

        foreach (Window window in winList)
        {
            if (window.Title.Contains("Estimate"))
            {
                Estimate.closeEstimateWindow();
            }
            if (window.Title.Contains("Control Center"))
            {
                ContorlCenter.CloseContorlCenter();
            }
            if (window.Title.Contains("Login"))
            {
                login.ClickCanel();
            }
        } 
    }

Do you have any other information on your window class besides the name. Since the names are not in alphabetical order, an order by will not work. — Stuart Smith
– Stuart Smith, Commented Mar 19, 2015 at 18:53
@StuartSmith: OrderBy won't work directly on the name. But he knows the specific items, so he can transform the name to a scalar value. — Jim Mischel
– Jim Mischel, Commented Mar 19, 2015 at 18:56

Jim Mischel · Accepted Answer · 2015-03-19 18:59:37Z

3

One way would be to have a lookup function:

int GetTitleIndex(string s)
{
    if (s.Contains("Estimate")) return 0;
    if (s.Contains("Control Center")) return 1;
    if (s.Contains("Login")) return 2;
}

Then, to sort, you lookup the indexes:

winList.Sort((x, y) => GetTitleIndex(x).CompareTo(GetTitleIndex(y)));

Alternatively, you could create the list directly using LINQ's OrderBy:

var winList = Windows.OrderBy(GetTitleIndex).ToList();

And in fact in your case you don't even need the intermediate list:

foreach (var window in Windows.OrderBy(GetTitleIndex))
{
    ...
}

edited Mar 19, 2015 at 18:59

answered Mar 19, 2015 at 18:42

Jim Mischel

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2 Comments

Tyson H. Over a year ago

That you this is what I was looking for!

Tyson H. Over a year ago

I would also appreciate if you up the question. I have no points what so ever.

Christo S. Christov · Accepted Answer · 2015-03-19 20:40:02Z

0

You can do something like this :

List<Type> data = new List<Type>();
data.Sort(new Comparison<Type>(Compare));
private static int Compare(Type x, Type y)
{
   //you can compare them like so : 
   //I'll show you an example just for the sake of illustrating how : 
   if(x.Name.ToString().Length > y.Name.ToString().Length) return 1;
   else return -1;
   //the logic for the comparison is up to you.
   //compare the 2 elements.
}

edited Mar 19, 2015 at 20:40

answered Mar 19, 2015 at 18:39

Christo S. Christov

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2 Comments

Christo S. Christov Over a year ago

Funny,because it doesn't compile because I did compare the two strings in a wrong way. The rest of the stuff is fine

Jim Mischel Over a year ago

Okay ... I retract my comment.

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