>I need to override property.
>The following code causes error. So I cannot declare virtual property for this.
>
>How to use virtual in this code ?
>
>

>class BusinessObject<EntityType> {
>	// Why next line causes error: The modifier 'virtual' is not valid for this item?
>	public virtual EntityType Entity;
>}
>
>class mybizobj : BusinessObject<MyEntity> {
>	public override MyEntity Entity {
>		get {
>			return null;
>		}
>	}
>}
>
>public class MyEntity { string myProperty;}
>

Andrus,
You cannot use virtual/override for fields. You can however use it for properties (reread your code you're not using it with a property but field).

public virtual EntityType Entity
{
get {}
set {}
}

Cetin