Conversion from Linq to String

Question

Am newbie here and tried the search, but not quite understood it, so I am thinking to ask to the forum for help.

I want to get the result into the text box from the following code but got an error. Confused on how to overcome it, appreciate for any help. I believe it was an error on the conversion from linqIgroup to string to be put in textboxt.Text

It's about to display the most word(s) that has been occurred in a text file.

string sentence;
        string[] result = {""};
        sentence = txtParagraph.Text;
        char[] delimiters = new char[] { ' ', '.', '?', '!' };

        string[] splitStr = sentence.Split(delimiters, StringSplitOptions.RemoveEmptyEntries);
        var dic = splitStr.ToLookup(w => w.ToLowerInvariant());
        var orderedDic = dic.OrderByDescending(g => g.Count(m=>m.First()).ToString()));

        txtFreqWord.Text = orderedDic.ToString();

You can use String.Join on the dictionary's Values property, if that's what you're trying to do. — user565869
– user565869, Commented Jun 12, 2013 at 23:37

Mez · Accepted Answer · 2013-06-13 00:26:23Z

2

Try the following to do what you are after. I am using regular expressions aswell.

            var resultsList = System.Text.RegularExpressions.Regex.Split("normal text here normal normal".ToLower(), @"\W+") 
        .Where(s => s.Length > 3)
        .GroupBy(s => s)
        .OrderByDescending(g => g.Count());

        string mostFrequent = resultsList.FirstOrDefault().Key;

To get all of them with their count, do the following :

            foreach (var x in resultsList) {
                 txtFreqWord.Text = txtFreqWord.Text + x.Key + " " + x.Count() +", ";
            }

edited Jun 13, 2013 at 0:26

answered Jun 12, 2013 at 23:50

Mez

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8 Comments

dian juwita Over a year ago

Stephen, you nail it, but it takes me to understand the logic behind it, sorry haven't got any reputation to vote up. Thanks a lot. The key is on: string mostFrequent = resultsList.FirstOrDefault().Key;

dian juwita Over a year ago

Will do John, one more question if you don't mind, how about if I wanna show the whole keys(Words) which has occurred most, example: John(occured 3x), David(occured 3x) instead only John, should I pass it into string array?

dian juwita Over a year ago

Thank you fr your answer, it's helpful, but maybe it was my wrong on my comment, what I meant was that I need to show on my Textbox both name: John, David; while on the first answer would only come up with one name. And for the updated answer, I am a bit confused on how to put it into a Textbox, will it show ex: John, David. I tried to do it but it seems it didn't update the answer on the Textbox.

Mez Over a year ago

Updated my answer to show you how to add text to the textbox.

dian juwita Over a year ago

Thanks Stephen, try to fiddle diddle with it to get only display the most Word(s) that occurred. Tried this: txtFreqWord.Text = txtFreqWord.Text + x.Key + ", "; but it will display the whole words in descending order of occurrances, I guess I have to put something afer x.Key so I had tried Max(), IndexOf, but they gave me only first element of the word (char) and error instead only the top occurrence Word(s), any final tip?, >.<

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