How to delete string [] arrays from another string?

Question

First I define my string array and a string from which I want to remove words:

string[] excludeWords = {"word1","word2","word3","word4","word5"}
   
    string sentence = "word1 word2 word5 marble1";

    TextBox1.Text = sentence;

I want to remove excludeWords from sentence so I want this output in my textbox(ASP.NET):

marble1

I tried Except method but not removes the words:

string filteredText = sentence.Except(excludeWords);

TextBox1.Text = filteredText

What method should I use?

Hossein Sabziani · Accepted Answer · 2022-11-12 12:34:42Z

1

var result = excludeWords.Except(sentence.Split(" ")).ToArray();
TextBox1.Text = string.Join(" ", result);

result:

"word3 word4"

You edited the question. In this case, you can use the following code

        string[] excludeWords = { "word1", "word2", "word3", "word4", "word5" };
        string sentence = "word1 word2 word5 marble1";
        var result = sentence.Split(" ").Except(excludeWords).ToArray();
        textBox1.Text= string.Join(" ", result);

result:

marble1

edited Nov 12, 2022 at 12:34

answered Nov 12, 2022 at 11:34

Hossein Sabziani

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5 Comments

user20465780 Over a year ago

this does not work; it gives error can not convert string to chart...

Hossein Sabziani Over a year ago

@user20465780 I added an image to the answer so you can see the result

Hossein Sabziani Over a year ago

@user20465780 Be careful not to put ' instead of ".

user20465780 Over a year ago

sorry apologize I made a mistake I want an output where excludeWords deletes elements what sentence contains if it match; I reedited the post...

Hossein Sabziani Over a year ago

@user20465780 I edited the answer for the new state of the question

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