[Solved] Replace a string in string that is in a List [closed]

Simple. Iterate over all strings inside List and then check if myString contains that or not. If yes, then replace it.

foreach (string item in lst)
{
    if (myString.Contains(item))
    {
        myString = myString.Replace(item, string.Format("$${0}$$", item));
    }
}

Also you can do same with LINQ:

lst.Where(item=> myString.Contains(item)).ToList()
   .ForEach(item => myString = myString.Replace(item, string.Format("$${0}$$", item)));

You can also split string by spaces, and check if they exist in List or not:

 myString.Split(' ').ToList()
         .Where(x => lst.Contains(x)).ToList()
         .ForEach(item => myString = myString.Replace(item, string.Format("$${0}$$", item)));

Case insensivity:

Change Contains(x) to Contains(x, StringComparer.OrdinalIgnoreCase).

For example the third method:

 myString.Split(' ').ToList()
         .Where(x => lst.Contains(x, StringComparer.OrdinalIgnoreCase)).ToList()
         .ForEach(item => myString = myString.Replace(item, string.Format("$${0}$$", item)));