如何筛选的基础上搜索的字符串列表框项目 [英] How to filter items in a ListBox based on a searched string

问题描述

我有一个Windows窗体，它包含了我增加了一些项目（我不使用一个数据源）列表框的应用程序（C＃）。我想过滤ListBox中的项目，以显示包含字符串我在寻找的唯一项目。

我已经保持了原有的项目清单这样做，从该列表每次选择匹配的项目搜索字符串的变化和更新ListBox.Items

有没有更优雅/有效的方式来做到这一点？

解决方案

有没有更优雅/有效的方式？

没有，真的没有。

您可以通过一个BindingSource的连接，并且具有筛选和排序的属性，但是，这并不为工作一个简单的列表<>。所以，你将不得不使用像一个DataTable，而且不会是一种进步。

您当前的方法似乎不错，特别是如果你可以使用LINQ过滤列表。

不过，我希望你没有结束项目属性每次循环，刚分配过滤列表Listbox1.DataSource。

I have a Windows Forms application (C#) containing a ListBox into which I have added some items (I'm not using a DataSource). I want to filter the items in the ListBox to show only items containing a string I'm searching for.

I have done this by keeping a list of the original items and selecting matching items from that list each time the search string changes and updating the ListBox.Items

Is there a more elegant/efficient way to do this?

解决方案

Is there a more elegant/efficient way?

No, not really.

You could connect through a BindingSource and that has Filter and Sort properties, but that doesn't work for a simple List<>. So you would have to use something like a DataTable and that would not be an improvement.

Your current method seems fine, especially if you can use LINQ to filter the list.

But I hope you're not looping over the Items property each time, just assign the filtered list to Listbox1.DataSource.

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