title: is it possible to update values on changed event using Entity Frameworks partial methods
body: <p>I was wondering how to change input values when using the Entity Framework. Till now I'm using selfmade custom classes which I transform to entity classes. I think I'm doubling the work i have to do. In the custom class I transform the incomming value at the setter. Postal codes in the netherlands are 4 digits plus 2 characters. Some people seperate them with a space, others join them together. At this moment a Regex wil seperate the digits from the characters if necessary. When using the Entity Framework. Is there a possibility to change the incomming value before writing the value to te database? And if so how do I do so?</p>
  
  <p>I was searching for validation but all examples I saw where only throwing errors without effectively transforming the value. </p>
  
  <p>Example of Dutch Postal Code: "5126HG" or "5126 HG" should both result in the same result in the database. I already know how to change, but not where and how to apply.</p>