Getting the distinct person or group column from a splist

Hi,
I am trying to get a distinct user type column from my splist. customerUserID is my column name which of type "Person or Group".
I am having multiple entries in my splist. i want to pas my curentoggedinuser and compare it against the values from the "customerUserID".
i tried using the linq ,but it fails.
can someone pls help whats the code i need to try.
DataTable dt = items.GetDataTable();
DataView dtview = new DataView(dt);
DataTable dtdistinct = dtview.ToTable(true, "customerUserID");
bool exists = dtdistinct.Select().ToList().Exists(row => row["customerUserID"].ToString().ToUpper().Equals(SPContext.Current.Web.CurrentUser.LoginName.ToString()));
if (exists == true ) break;
am trying teh above code,but i am unable to get the distinct value[ i need only one record ].
but the above doesnt evaluate to true , eventhough ia m having the correct values in my splist.
Das

Hi,
Please refer to the following blog
https://rmanimaran.wordpress.com/2011/05/20/get-distinct-values-from-a-sharepoint-list-along-with-where-condition/
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