CODEWITHSUNDEEP
c#.netstring
icebox19
icebox19

Reputation: 523

In a foreach (string word in words) how can I go to next word if (if->true) C#?

The idea is that he inputs a text file, and a word number. The software will write in a new file that text but with number of words (that he inputed) per line, and few other details.

The idea is this, I made him a blacklist. The blacklist is loaded into a richbox from a file, and saved while closing application.

The thing is that I have everything set up (a function that checks if the word is in blackbox).

The software looks like this:

foreach (string word in words)
{
     int blacklist = 0;

     if (FindMyText(word))
     {
           blacklist = 1;
           MessageBox.Show("Current word: " + word + " is blacklisted!");
     }
     else
           MessageBox.Show("Word: " + word);               

     // the code here ... for writing in file and all that

     }

The function FindMyText(word) tells me if the word is in blacklist or not.

If that function returns true, I want to step to the next word, but really don't know how to do this.

If you have some ideas, would really help me out.

Thanks you guys.

Upvotes: 3

Views: 1764

Answers (4)

Lex Eichner
Lex Eichner

Reputation: 1066

I'm not 100% sure I understand but I think what you want is the "continue" keyword.

Once an iteration of the loop is complete it will start again until it runs out of iterations.

So in your IF/ Else statement, you want to force the loop to go onto the next word, you type continue;. This will ignore all of the preceding code in the loop and jump to the next iteration.

Does that make sense?

Upvotes: 0

Darren
Darren

Reputation: 70786

You already have the logic, just add continue:

The continue statement passes control to the next iteration of the enclosing iteration statement in which it appears. It takes the following form:

if (FindMyText(word))
{
  blacklist = 1;
  MessageBox.Show("Current word: " + word + " is blacklisted!");
  continue;
}
else
{
   MessageBox.Show("Word: " + word);
  AddWordToFile(word); // not black listed;
}

http://msdn.microsoft.com/en-us/library/923ahwt1(v=vs.71).aspx

Upvotes: 1

mathieu
mathieu

Reputation: 31192

You could just add the "continue" keywork to skip to the next element in the foreach iteration.

foreach (string word in words)
{
    int blacklist = 0;
    if (FindMyText(word))
    {
        blacklist = 1;
        MessageBox.Show("Current word: " + word + " is blacklisted!");
        // skip to the next element
        continue;
    }

    MessageBox.Show("Word: " + word);
    // the code here ... for writing in file and all that

}

or you could just split the foreach body :

foreach (string word in words)
{
    int blacklist = 0;
    if (FindMyText(word))
    {
        blacklist = 1;
        MessageBox.Show("Current word: " + word + " is blacklisted!");
    }
    else
    {
        MessageBox.Show("Word: " + word);
        // the code here ... for writing in file and all that
    }
}

It all depends on how long the "else" part is. If it is really long, it is more readable to use continue, to put the emphasis on the skipping part.

Upvotes: 1

Rune FS
Rune FS

Reputation: 21752

in a foreach loop or any other loop you can use the continue to skip to the next iteration so in your case you could do 

foreach (string word in words)
{
  var blacklist = 0;
  if (FindMyText(word))
  {
    blacklist = 1;
    MessageBox.Show("Current word: " + word + " is blacklisted!");
    continue;
  } else {
     //...
  }
 }

Upvotes: 1

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