title: Update list object based on other LINQ / LAMBDA
body: <p>Here are my two objects</p>
  
  <pre><code>    public class ObjectHeaderBuffer
      {
         public int DataObjectId { get; set; }
         public string FileName { get; set; }
         public int RowCount { get; set; }
         public string Checksum { get; set; }
         public int ReconTarget { get; set; }
      } 
  
      public class ObjectHeaderAttribute
      {
         public int DataObjectId { get; set; }
         public int AttributeType { get; set; }
         public int AttributeValue { get; set; }
  
      }
  
          var ohBuffer = new List&lt;ObjectHeaderBuffer&gt;();
          var ohAttribute = new List&lt;ObjectHeaderAttribute&gt;();
  </code></pre>
  
  <p>I want to update ohBuffer.ReconTarget with ohAttribute.AttributeValue where ohBuffer.DataObjectId == ohAttribute.DataObjectId</p>
  
  <p>what is linq or lambda of this?</p>