如何判断一个值是否在List中<string> ?</string>

Question

In C# using VS2005, let's say I have a List<string> called listOfStrings and a string variable called str .

Can I do something like this?

if (str in listOfStrings) { ... }

Answer 1

Yes, you can. Have a look at the List<T>.Contains(..) method.

List<string> l = new List<string>();
l.Add("Hello");
l.Add("World");

if (l.Contains("Hello"))
{
    // ..
}

Answer 2

You can use List.Contains() to do this.