c＃两个listBoxes之间的比较并消除差异......？ | c＃两个listBoxes之间的比较并消除差异

本文介绍了c＃两个listBoxes之间的比较并消除差异......？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

大家好，

我有两个listBox（listBox3和listBox4）

listBox3中的项目总是= UPPERCASE （必须保持）

listBox4中的项目=大写和小写（不同）

listBox3中的项目必须始终存在于listBox4中

我想比较listBox3和listBox4之间的项目，所以listBox4中存在的所有不同项目，
将从listBox4中移除。

例如，之前执行代码：

listBox3： &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; listBox4：

&NBSP; &NBSP;

星期一 &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;星期一

WEDNESDAY &NBSP; &NBSP; &NBSP;星期二

星期六 &NBSP; &NBSP; &NBSP; &NBSP; Wednesday

&NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;星期四

&NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;星期五&bbsp; b $ b &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;星期六

&NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; SUNDAY

执行代码后：

listBox3： &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; listBox4：

&NBSP; &NBSP;

星期一 &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; 星期一¥
星期三 &NBSP; &NBSP; &NBSP; &NBSP;周三，NBSP; &NBSP; &NBSP; &NBSP;

SATURDAY &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;星期六

请帮助我。在此先感谢。

Hello everyone,
I have two listBoxes (listBox3 and listBox4)

Items in listBox3 are always = UPPERCASE (it must remain so)
Items in listBox4 are = Uppercase and lowercase (different)

Items in listBox3 must always exist in listBox4

I would like to compare the items between listBox3 and listBox4, so all the different items that exist in listBox4,will be removed from listBox4.

For example, before executing the code:

listBox3: listBox4:

MONDAY monday
WEDNESDAY tuesday
SATURDAY Wednesday
Thursday
Friday
saturday
SUNDAY

after executing the code:

listBox3: listBox4:

MONDAY monday
WEDNESDAY Wednesday
SATURDAY saturday

Please help me. Thanks in advance.

推荐答案

对于迟到的回复感到抱歉。

Sorry for the late reply.

为了您的目的，请参考：

For your purpose, please refer to this:

        private void button1_Click(object sender, EventArgs e)
        {
            List<string> lb3 = new List<string>();
            List<string> lb4 = new List<string>();

            foreach(string str in listBox3.Items)
            {
                lb3.Add(str.ToLower());
            }

            foreach(string str in listBox4.Items)
            {
                lb4.Add(str.ToLower());
            }

            var list = lb4.Intersect(lb3).ToList<string>();//Intersection

            listBox3.Items.Clear();
            listBox4.Items.Clear();
            foreach (string s in list)
            {
                listBox3.Items.Add(s.ToUpper());
                listBox4.Items.Add(s);
            }
        }

问候，

Frankie

这篇关于c＃两个listBoxes之间的比较并消除差异......？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！