How to Search a String in List<Tuple<string,string>> in C#

Question

I am having a

        List<Tuple<string,string>> tr = new List<Tuple<string,string>>();
        tr.Add(new Tuple<string, string>("Test","Add");
        tr.Add(new Tuple<string, string>("Welcome","Update");

        foreach (var lst in tr)
         {
             if(lst.Contains("Test"))
              MessageBox.Show("Value Avail");

          }

I failed while doing this ,....

Answer 1

Probably this should work:

foreach (var lst in tr)
{        
    if (lst.Item1.Equals("Test"))        
        MessageBox.Show("Value Avail");
}

or this

if (lst.Item1.Equals("Test") || lst.Item2.Equals("Test"))

---

Read Tuple Class; you'll need to access values of the tuple through Item1 and/or Item2 properties.

---

And why use Tuple at all? Maybe this is easier:

Dictionary<string, string> dict = new Dictionary<string, string>
{
    {"Test", "Add"},
    {"Welcome", "Update"}
};

if (dict.ContainsKey("Test"))
{
    MessageBox.Show("Value Avail:\t"+dict["Test"]);
}

Answer 2

If you'd like to use LINQ:

if(tr.Any(t => t.Item1 == "Test" || t.Item2 == "Test"))
    MessageBox.Show("Value Avail");

This will also have the benefit of only showing the message box once if the text is found multiple times (if that is what is desired).