>>>Hi,
>>>
>>>My title is not very clear so I will explain what I am looking for. I have an XML file that my ASP.NET application reads into a dataset. One of the columns of the dataset has a string of the following format (examples):
>>>"1,3,29"
>>>"2"
>>>"4,5,1"
>>>That is the string contains number(s) separated by commas (btw, if the answer to my question involves changing the separator from comma to something different, I can do it).
>>>Then I need to compare if a certain number (integer) is in the string. For example, say a variable iNumber is within the string. E.g. in pseudo code:
>>>

>>>iNumber = 3
>>>cString = "2,4,12"
>>>If (iNumber = Withint( cSring))
>>>{ 
>>>    // process
>>>}
>>>

>>>
>>>Any suggestions on how to compare the number (iNumber) to the content of the string? TIA.

int iNumber = 2;
>>string cstring = "2,4,12";
>>
>>bool isWithin = cstring.Split(',').FirstOrDefault(x => Convert.ToInt32(x) == iNumber) != null;

>
>Thank you. I wonder though if the syntax "x =>" is something new, after .NET 2.0; since I have never seen it (and I am still working in .NET 2.0). But the key, as others suggested, is learning to "Split" (pun intended).

It's Linq. Think it came in .NET 3.5 ?
Even simpler, BTW :

bool isWithin = cstring.Split(',').Contains(iNumber.ToString());