如何操作列表？ [英] How Do I Manipulate A List?

问题描述

我有这个列表的这一组。我已设法将其添加到列表中并将其显示在网格中。



现在我想选择列表中的前30个单词。这样做我遇到了一些问题。



我想用列表检查输入文本框的文本，如果文本已经存在于列表中，我想返回30个单词其中包括文字。



需要帮助。



提前致谢。

Hi,

I have this set of this list.I have managed to add it inside the list and display it into a grid.

Now I would like to select the top 30 words inside the list. I am encountering some problems in doing so.

I would like to check the text that are typed into the textbox with the list and if the text already exist in the list, I would like to return the 30 words which includes the text.

Help needed.

Thanks in advance.

string check = textbox.Text;

       <pre lang="xml">List<string> duplicate = new List<string>();

             if (duplicate.Contains(check) == true)
             {
                 int remove = Math.Max(0, duplicate.Count - 28);
                 duplicate.RemoveRange(0, remove);

                 duplicate.Insert(5, check);

                 //duplicate.AddRange(final);
             }</pre>

推荐答案

Quote：

List<串GT; duplicate = new List< string>（）;

List<string> duplicate = new List<string>();

上面的语句创建一个空列表，即 duplicate 包含NO项目。您应该使用 List< T>构造函数（IEnumerable< T>） [ ^ ] ctor，以使其成为原始版本的副本。

The above statement creates an empty list, that is duplicate contains NO items. You should use the List<T> Constructor (IEnumerable<T>)[^] ctor in order to make it a copy of the original one.

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