Check if a string has at least one number in it using LINQ

Question

I would like to know what the easiest and shortest LINQ query is to return true if a string contains any number character in it.

Answer 1

string number = fn_txt.Text;   //textbox
        Regex regex2 = new Regex(@"\d");   //check  number 
        Match match2 = regex2.Match(number);
        if (match2.Success)    // if found number 
        {  **// do what you want here** 
            fn_warm.Visible = true;    // visible warm lable
            fn_warm.Text = "write your text here ";   /
        }