对ListBox中的重复项进行编号 [英] Numbering Duplicate Items in the ListBox

问题描述

我有一个列表框。在其他地方，我有一个按钮，可以将listboxitems添加到列表框中（当程序处于活动状态时）。每个listboxitem添加给我相同的名称。在WPF，C＃或.vb示例代码中，如何自动在重复项的末尾添加一个数字，使其与下一个不同（如果在Windows中创建新文件夹，则第一个文件夹不具有一个数字，但下一个文件夹将有2和更高的数字取决于你创建的新文件夹的数量）？



编辑：我不知道为什么有人会这样做不可理解。一定是真的，人们不能在互联网上阅读多个句子：P







总而言之，我需要知道（IN CODE）如何在动态创建的listboxitems中的实际文本旁边的文本框中显示数字：



ex：< br $>
[新类别]

[新类别2]

[新类别3]

[新类别4]

[新类别5]

[新类别6]



[+]

I have a listbox. Elsewhere, I have a button that adds listboxitems to the listbox (when the program is active). Each listboxitem addition gives me the same name. In WPF, C#, or .vb sample code, how do I add a number to the end of the duplicate item automatically that will make it different from the next (Like in Windows if you create new folders, the first folder won't have a number but the next folders will have numbers 2 and up depending on how many new folders you create)?

I don't know why someone would make this as not understandable. It must be true that people can't read more than one sentence on the internet :P



To sum it up, I need to know (IN CODE) how to make numbers appear in the textbox beside the actual text in dynamically created listboxitems:

ex:
[New Category ]
[New Category 2]
[New Category 3]
[New Category 4]
[New Category 5]
[New Category 6]

[ + ]

推荐答案

这里解释了我过去收集的一些答案： combobox.selectedvalue在winform中显示{} [ ^ ]。



这个想法是：你不应该在列表中存储字符串vie w或组合框，您应该创建一些表示每个项目及其数据的类或结构。通过覆盖 System.Object.ToString（）来解决在屏幕上呈现此类项目的问题。我提到的一些过去的答案都附有详细的代码示例，请查看它们。

-SA

This is explained in few of my past answers collected here: combobox.selectedvalue shows {} in winform[^].

The idea is: you should not store strings in a list view or a combo box, you should create some class or structure representing each item with its data. The problem of presentation of such items on screen is solved by overriding System.Object.ToString(). Some of my referenced past answers are complete with detailed code samples, please see them.

—SA

这篇关于对ListBox中的重复项进行编号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IT屋！