C#-对列表框中的项目进行排序...！ [英] C# - Sorting items in a listbox...!

问题描述

嗨
我有一个包含数据的列表框:

例如

CCCCC
CCCCC
CCCCC
BBBBB
BBBBB
BBBBB
BBBBB
AAAAA
AAAAA

那么我发现使用此代码重复的项目有多少次:

Hi
I have this listbox with data:

ex.

CCCCC
CCCCC
CCCCC
BBBBB
BBBBB
BBBBB
BBBBB
AAAAA
AAAAA

then I am finding how many times are repeat items using this code:

string[] names = listBox1.Items.Cast<string>().ToArray();
            List<string> namecount = (
            names.GroupBy(name => name).Select(group => string.Format("{0} [{1}]", group.Key, group.Count()))
                .ToList());//.ForEach(item => Console.WriteLine(item));
            listBox2.DataSource = namecount;

然后列表框2如下所示:
CCCCC [3]
BBBBB [4]
AAAAA [2]

好的，现在的问题是如何将它们排序或收集到另一个列表框e.x listbox3中，如:

BBBBB [4]
CCCCC [3]
AAAAA [2]

重复最多的单词排在最前面..etc.s

and and then listbox 2 look like that:
CCCCC[3]
BBBBB[4]
AAAAA[2]

ok now the problem is how can I sort or collect them in another listbox e.x listbox3 like that:

BBBBB[4]
CCCCC[3]
AAAAA[2]

the most word that is repeat to be first.....etc

推荐答案

在构造字符串形式之前，请尝试对它们进行排序:

Try ordering them before constructing the string form:

List<string> namecount = (
            names.GroupBy(name => name).OrderBy(g => g.Count()).Select(group => string.Format("{0} [{1}]", group.Key, group.Count()))
                .ToList());

listBox1.Name = "listBox1";
listBox1.Items.AddRange(new object[] {
             "hi",
            "are",
            "hello",
            "how",
            "wher"});
listbox1.sort = true;

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