CODEWITHSUNDEEP
c#asp.netlinqsplit
TechDo
TechDo

Reputation: 18659

Search string in string C#

I have a string “EMP1$0,EMP2$1,EMP3 $1, Emp4$ 0, emp44$1”; these are employee codes separated by coma (,). Each employee code is appended with their statuses (i.e. 1 for active and 0 for inactive and separated with $ sign). Employee code will not contain spaces, but space can be possible between employee code and $. I need to check if an employee code say “EMP4” is present in this string. Which will be best approach?

Any help is highly appreciable.

Edit:

var strResult = from string str in hdnEmpCodes.Value.Split(',') 
                where str.Length > 0 && str.Substring(0, str.IndexOf("$")).Trim() == lnkEmpCode.Text.Trim() 
                select str.ToString();

But it is not giving the desired output.

Upvotes: 1

Views: 4878

Answers (5)

Enigmativity
Enigmativity

Reputation: 117144

If you start with the following:

var text = "EMP1$0,EMP2$1,EMP3 $1, Emp4$ 0, emp44$1";

Then you can perform this query to extract the "EMP" codes:

var query =
    from x in text.Split(',').Select(_ => _.Trim())
    let y = x.Split('$').Select(_ => _.Trim())
    where y.Any()
    select y.First();

This would give the following result:

EMP query result

It would now be a simple matter of checking if any of the returned values match.

var found = query.Any(x => x.ToUpperInvariant() == "EMP4");

Does this do what you need?

Upvotes: 2

Habib
Habib

Reputation: 223322

Use string.Contains

if(str.Contains("EMP4"))

EDIT: based on your comment.

Since you said in your question that your values will be comma separated. You may try the following. 

string str = "EMP10, EMP44, EMP5"; //your sample string. 
string[] tempArray = str.Split(',');
if (tempArray.Contains("EMP4")) //This will result in Not Found
{
    Console.WriteLine("Found");
}
if (str.Contains("EMP4")) //But a simple string.Contains will result in matching 
                          //it to EMP44
{
    Console.WriteLine("here");
}

Upvotes: 2

Gabber
Gabber

Reputation: 5472

You could use a regex

Regex r = new Regex("EMP4[^\\d]"); 
Match m = r.Match(yourString); 
if (m.Success) 
{
    // your code
}

This searches any EMP4 string not followed by another digit

Upvotes: 0

BvdVen
BvdVen

Reputation: 2961

Create a list of the csv and use contains on the list

Upvotes: 0

Freeman
Freeman

Reputation: 5801

you can use the string.Contains method

bool employeeExistsInString = string.Contains(yourString);

However would have been nice if you would have at least googled it first.

Upvotes: 3

Related Questions