title: List Collection Contains exact string
body: <p>I have a List Collection and say that i am adding 3 items to them.</p>
  
  <pre><code>list.Add(new ContentDomain() {  Id = "1" , Content = "aaa,bbb,ccc,ddd"});
  list.Add(new ContentDomain() {  Id = "2" , Content = "aa,bb,cc,dd"});
  list.Add(new ContentDomain() {  Id = "3" , Content = "a,b,c,d"});
  </code></pre>
  
  <p>Now what i want is to fetch the rows that have just 'a' in the Content attribute.</p>
  
  <p>Like i tried something like </p>
  
  <pre><code>list = list.Where(x =&gt; x.Content.ToLower().Contains("a")).ToList();
  </code></pre>
  
  <p>but that would give me all the three rows. </p>
  
  <p>i want to search in a string for the exact string only.</p>