title: c# linq update all records in database
body: <p>im trying to update all records in a sql table using the following code but no data is updated. does anyone know why?</p>
  
  <pre><code>        using (DataContext db = new DataContext())
          {
              foreach (Item record in db.Items)
              {
                  record.Description += "bla";
                  db.SubmitChanges();
              }
          }
  </code></pre>
  
  <p>code for setter:</p>
  
  <pre><code>[Column(Storage="_Description", DbType="NVarChar(400) NOT NULL", CanBeNull=false)] 
  public string Description
  { 
    get { return this._Description; }
    set { 
        if ((this._Description != value))
         { 
           this._Description = value; 
         }
        }
  }
  </code></pre>