How Do I Manipulate The List

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Visual-Studio

WPF

C#3.5

, +

Hi,

I have a List<string>. Inside it I have a collection of string texts.

I would like to manipulate the list into delete all the text except the text that have been typed into the textbox.

How do I do that?

Help needed. Thanks in advance.

List<string> final = new List<string>();
                foreach (KeyValuePair<string, int> entry in sortDict)
                    final.Add(entry.Key);
                final.RemoveAt(2);

                List<string> duplicate = final.ToList();

                //string check = textbox1.Text;

                if (duplicate.Contains(check) == true)
                {
                    int remove = Math.Max(0, final.Count - 27);
                    final.RemoveRange(0, remove);

                    int delete = Math.Max(0, duplicate.Count - 3);
                    duplicate.RemoveRange(3, delete);

                    // delete all the text in the string except check

                    duplicate.AddRange(final);
                }