Vb Net 检查 arrayList 是否包含子字符串 [英] Vb Net check if arrayList contains a substring

问题描述

我正在使用 myArrayList.Contains(myString) 和 myArrayList.IndexOf(myString) 来检查 arrayList 是否包含提供的字符串并分别获取其索引.

I am using myArrayList.Contains(myString) and myArrayList.IndexOf(myString) to check if arrayList contains provided string and get its index respectively.

但是，我如何检查是否包含子字符串?

But, How could I check if contains a substring?

Dim myArrayList as New ArrayList()
myArrayList.add("sub1;sub2")
myArrayList.add("sub3;sub4")

所以，myArrayList.Contains("sub3") 应该返回 True

so, something like, myArrayList.Contains("sub3") should return True

推荐答案

好吧，你可以使用 ArrayList 来搜索子串

Well you could use the ArrayList to search for substrings with

Dim result = myArrayList.ToArray().Any(Function(x) x.ToString().Contains("sub3"))

当然，使用强类型 List(Of String) 的建议是绝对正确的.

Of course the advice to use a strongly typed List(Of String) is absolutely correct.

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