C# SORT ARRAYLIST BY VALUE

Question

5.00/5 (1 vote)

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Hi there,

I have a list of values

200000
90000
500000
60000
150000

I need to sort it

60000
90000
150000
200000
500000

I am using an ArrayList Sort and it sorting it as

150000
200000
500000
60000
90000

public void OrderDropDowns(ref DropDownList objDDL)
        {
            // ArrayList to keep text and value items within the specified Drop Down
            ArrayList text_list = new ArrayList();
            ArrayList value_list = new ArrayList();

            foreach (ListItem li in objDDL.Items)
            {
                if (li.Text != "-Select One-")
                {
                    text_list.Add(li.Text);
                }
            }
            if (text_list.Count >= 8)
            {
                text_list.Sort(0, 4, null);
            }
            else
            {
                text_list.Sort();
            }

            foreach (object li in text_list)
            {
                string value = objDDL.Items.FindByText(li.ToString()).Value;
                value_list.Add(value);
            }

            // Adding Sorted Items to the Drop Down List
            objDDL.Items.Clear();
            objDDL.Items.Add("-Select One-");
            for (int i = 0; i < text_list.Count; i++)
            {
                if (i != text_list.Count)
                {
                    ListItem objItem = new ListItem(text_list[i].ToString(), value_list[i].ToString());
                    objDDL.Items.Add(objItem);
                }
            }
        }

Any help would do please

Posted 14-Aug-12 21:51pm

DJAppleboy

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4 solutions

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StianSandberg · Answer 1 · 2012-08-14T21:58:00

C#

int[] intArray = { 8, 10, 2, 6, 3 };

// Sort your int array
Array.Sort(intArray);
foreach (var i in intArray)
{
    Console.WriteLine(i);
}

// Sort it the other way
foreach (var i in intArray.Reverse())
{
    Console.WriteLine(i);
}

order objects by property:

C#

MyCollection.OrderBy(o => o.PropertyName);
MyCollection.OrderByDescending(o => o.PropertyName);

Santhosh Kumar Jayaraman · Answer 2 · 2012-08-14T22:03:00

Solution 3

C#

var sortedList = list.Cast<string>().OrderBy(item => int.Parse(item));

Check this.

http://stackoverflow.com/questions/852439/how-to-sort-elements-of-array-list-in-c-sharp[^]

Posted 14-Aug-12 22:03pm

Santhosh Kumar Jayaraman

v2

kornakar · Answer 3 · 2012-08-14T21:54:00

Solution 1

Chech this out: http://stackoverflow.com/questions/852439/how-to-sort-elements-of-array-list-in-c-sharp[^]

Posted 14-Aug-12 21:54pm

kornakar

Comments

kornakar 16-Aug-12 5:46am

Funny that my answer is downvoted, but it is exactly the same link as in Santhosh Kumar J's answer :)

DJAppleboy 23-Aug-12 6:47am

Maybe because he posted it first...lol and I still couldn't get it to work

kornakar 24-Aug-12 2:20am

Well I posted it first (Solution 1, see) :) But I guess I should have provided a full code for him and not the link only.

Mehdi Gholam · Answer 4 · 2012-08-14T22:03:00

Solution 4

You are sorting string values, that is why your sorting does not look normal.

Use the following line when adding data :

C#

text_list.Add(long.Parse(li.Text));