if语句的多个值

Question

If my statement contains two conditions:

string searchx = "some string"; 

if ((searchx.Contains("a1")) || (searchx.Contains("a2")))
{
...
}

But how to get list of values with single variable for statement?

If I got a1, a2, a3, a4, a5, a6, a7, a8, a9...

Can I do it somehow this way, seems it is wrong attempt:

var valueList = new List<string> { "a1", "a2", "a3", "a4"};

But just to explain what I want to do, so if any value exist under valueList , condition is accepted:

if (searchx.Contains(valueList)) 
{
...
}

The best if I can get multiple value return I guess or any other way to get statement with updated list of values through single variable of any other way, which can work for me this way?

Answer 1

This has worked for me:

if (valueList.Any(x => searchx.Contains(x)))
{
}

or even shorter (thanks to rajeeshmenoth)

    if(valueList.Any(searchx.Contains))

Answer 2

You can try and use Except

if (valueList.Except(searchx).Any())
{

}

Answer 3

Not the best solution, but works.

bool containsValue(string search)
{
var valueList = new List<string> { "a1", "a2", "a3", "a4"};
foreach (string s in valueList)
 {
 if(search.Contains(s))
  return true;
 }
return false;
}

and use it like :

if (containsValue(searchx))
{
... do something ...
}

Answer 4

You can use the Linq :

  bool b = valueList.Any(searchx.Contains);

Try this :

    string searchx = "a8"; 
    var valueList = new List<string>{"a1", "a2", "a3", "a4"};

    if (valueList.Any(searchx.Contains))
        Console.WriteLine("Data Matching..!!");
    else
        Console.WriteLine("Not Matching..!!");

Demo : Click here

Answer 5

You can make a foreach loop

string search = "GIVE A STRING";
List<string> DataList = new List<string> {"a1", "a2", "a3",.....};
foreach(string Data in DataList)
{ 
  if(search.Contains(Data))
  { //TODO }
}