I i have string of numbers separated by commas ,How to check if another string contained in that string .
For example :
If i have a string :
67,782,452,67632,9,155,323
How to check that 155 is in the previous string using linq ?
4 Answers
I assume that you want to check if one of the items in the string is your given string. I would split the string first by the delimiter ,, then use Contains or Any:
string[] items = "67,782,452,67632,9,155,323".Split(',');
bool contains = items.Contains("155");
contains = items.Any(i => i == "155");
The problem with the Contains-check on the string is that also "1550" would contain "155".
4 Comments
Anyname Donotcare
is
Any give the exact not like Contains ??Anyname Donotcare
i mean u use
Contains then Any ?!
Tim Schmelter
@just_name: that's just to demonstrate both ways.
Enumerable.Any is more flexible since you could use any code here. Contains must be used with the same type as the array and it used the default equality check. But Conatains is more readable and works also here.
Kurubaran
+1 Contains-check on the string is that also "1550" would contain "155"
For e.g. using String.Contains or Any (you can use string.Contains in your linq query)
string a = "67,782,452,67632,9,155,323";
var splitted = a.Split(',');
if(splitted.Any(x=> x == "155"))
{
...
}
or
if(splitted.Contains("155"))
{
...
}
or ugly one-liner
var contains = a.Split(',').Any(x=>x=="155");
answered Mar 10, 2014 at 10:50
Kamil Budziewski
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2 Comments
Paolo Tedesco
This would return true also if the string was for example "1,1550,2"
Kamil Budziewski
@PaoloTedesco good point, edited my answer
Split the string and then check the resulting array:
string input = "67,782,452,67632,9,155,323";
string[] values = input.Split(',');
bool contained = values.Contains("155");
Comments
Using Linq:
var str = "67,782,452,67632,9,155,323";
var arr = str.Split(',');
var isInString = arr.Any(x => x == "155");
Comments
linq