title: Multiple condition in LINQ where clause
body: <p>I am new to LINQ world. I'm trying to calculate sum as follows-</p>
  
  <pre><code> var newSum = (from c in db.ExecutionDetails 
                 join camp in db.CampaignDetailsPerExecutions 
                 on c.SmsId equals camp.SmsId 
                 where c.AmoCode == 5 
                 &amp;&amp; c.DateTime between date1 and date2  //error
                 select camp.Poster).Sum();
  </code></pre>
  
  <p><code>&amp;&amp;</code> operator in where clause gives error (red curly underline).</p>