List2Base.Retain Method

Retains the first occurrence of each element of the specified ICollection from the list.

[Visual Basic]
Overridable Public Function Retain( _
   ByVal collection As ICollection _
) As Boolean Implements _
   IList2.Retain

[C#]
public virtual bool Retain(
ICollection collection
);

collection: The ICollection used to determine what elements to be retained in the list.

true if the list is modified; otherwise false.

Exception Type	Condition
System.NotSupportedException	The list is read-only. -or- The list has a fixed size.

Exception Type

Condition

The list is read-only.

-or-

The list has a fixed size.