Like Query in Linq

class Program

{

public static bool Like(string toSearch,string toFind)

{

if (toSearch.Contains(toFind))

return true;

else

return false;

}

static void Main(string[] args)

{

List str = new List();

List strNew = new List();

str.Add("abdecacd");

str.Add("facdgh");

str.Add("iabcacdjk");

str.Add("lmn");

str.Add("opqe");

str.Add("acbd");

str.Add("efgh");

string strToSearch= "acd,abc,abcacd,al";

string[] desc = strToSearch.Split(',');

for(int i = 0; i < str.Count; i++)

{

for(int j = 0; j < desc.Length; j++)

{

if(Like(str[i].ToString(),desc[j].ToString()))

{

strNew.Add(str[i].ToString());

break;

}

if(strNew != null)

{

foreach(string strPrint in strNew)

{

Console.WriteLine(strPrint);

}

How to write linq query for above code,here strToSearch value will be dynamic,user will enter as many comma seperated values as he wants to search,I want to write a linq query which return values from list which contain the values entered by user.

In above example suppose user entered acd,abc,abcacd,al,then output will be abdecacd,facdgh,iabcacdjk as these values in list contains acd or abc

I want to write a Linq query because in my application linq is used.

to take comma separated value use params and to return use yield , in this way won't have to create List inside method.

public static void Main()
{
foreach (string word in Check("ram","shyam"))
{
Console.WriteLine(word+ " is present");
}
Console.ReadLine();
}
public static IEnumerable<string> Check(params string[] words)
{
List<string> data = new List<string>() {"ram","shyam","mohan","gopi","Krishna" };
foreach (var item in words)
{
if (data.Contains(item))
{
yield return item;
}
}
}

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Sachin Singh5y ago
to take comma separated value use params and to return use yield , in this way won't have to create List inside method.
public static void Main()
        {

             foreach (string word in Check("ram","shyam"))
             {
                 Console.WriteLine(word+ " is present");
             }

            Console.ReadLine();
        }

        public static IEnumerable<string> Check(params string[] words)
        {


            List<string> data = new List<string>() {"ram","shyam","mohan","gopi","Krishna" };


            foreach (var item in words)
            {
                if (data.Contains(item))
                {
                    yield return item;
                }
            }

        }