Like operator in conents in C#.net

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We are doing string search based on contains.

string str="Hello iam saritha help me about this problem".

If(str.contains( array[i])==true)
{
  
}

we are giving the string like this:

"llo".

If the word exactly like "llo" then only display the output.

But it will comes based on he"llo" last three words.

We want exact word "llo".

Posted 19-Jun-11 21:48pm

Member 7932936

Updated 19-Jun-11 21:51pm

Tarun.K.S

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**R. Giskard Reventlov** · Answer 1 · 2011-06-19T22:04:00

Solution 1

You could use a regular expression[^]: quick search yields this[^].

Posted 19-Jun-11 22:04pm

R. Giskard Reventlov

OriginalGriff · Answer 2 · 2011-06-19T22:06:00

Solution 2

String.Contains is good for exact matches, but it doesn't work too well for more complex things. You could do it by surrounding your word with spaces:

If(str.contains(string.Format(" {0} ", array[i]))==true)

But that will fail when you get punctuation.
Have you considered a Regex?

Posted 19-Jun-11 22:06pm

OriginalGriff

Comments

Member 7932936 20-Jun-11 4:28am

It does not working.

OriginalGriff 20-Jun-11 4:45am

As I said, it will fail if you have punctuation - do you?
Alternatively, what values are using in array[i]?

NDebata · Answer 3 · 2011-06-19T22:30:00

Hi
There are many ways yo can do this.
One may be

C#

String str = "Hello, Hello bssjd sbndjsjdas anasj hello.hello;";
            string[] _words=str.Split(new char[] { ' ',';',',','.'});
            var _matches = _words.Where(s => s.Equals("MatchWord", StringComparison.InvariantCultureIgnoreCase)).ToList();

Tarun.K.S · Answer 4 · 2011-06-19T22:08:00

Here is one way to do it:

C#

string str = "Hello iam saritha help me about this problem";
            string[] ss = str.Split(' ');
            foreach (string s in ss)
            {
                if (s.Equals("llo"))
                {
                     //Found "llo"
                }
            }

But the disadvantage is if the string has something like this: "llo, iam saritha", then the above technique will fail.

DevSoft20 · Answer 5 · 2014-06-13T05:37:00

Solution 5

Hi,

Here is another solution

http://bc-programming.com/blogs/2013/07/emulating-the-vb-net-like-operator-in-c/[^]

Posted 13-Jun-14 5:37am

DevSoft20

Jαved · Answer 6 · 2015-11-09T20:28:00

Solution 7

You can do this with regular expressions-

Code snippet-

C#

if(Regex.IsMatch(textToCheck, patternToMatch))

    //Do something

Posted 9-Nov-15 20:28pm

Jαved

Comments

phil.o 10-Nov-15 5:14am

You basically posted an incomplete solution to a four years old question.
What is your point in doing that?

Jαved 28-Dec-15 6:26am

Hi phil,
the solution isn't incomplete, and for 4 year old question because the question dont have any accepted answer yet.
thanks,

Like operator in conents in C#.net

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Like operator in conents in C#.net

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