title: How to use Exists method for the property of the list object
body: <p>There is a list of Employee (<code>List&lt;Employee&gt;</code>) and it contains objects of Employee  and each Employee having Different property. One of the property is Employee Id. I want to add employee into list if that employee doesn't exists in the list and I want to check it through employee id using <code>List&lt;T&gt;.Exists(Predicate&lt;T&gt;)</code> method. How can I check the current employee id exists in the employee list or not. I got stuck here. Please help me out of this.</p>