출처 :&nbsp;<a href="http://sjpison.tistory.com/1" target="_blank" class="tx-link">http://sjpison.tistory.com/1</a> <span style="font-size: 9pt; line-height: 107%; font-family: 돋움; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">다음의 코드는
열거형의 Flag연산을 쉽게 정리해 놓은 것입니다.<span style="font-size: 9pt; line-height: 107%; font-family: 돋움; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"> <span style="font-size: 9pt; line-height: 107%; font-family: 돋움; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"> <div class="txc-textbox" style="border-style: solid; border-width: 1px; border-color: rgb(254, 254, 184); background-color: rgb(254, 254, 184); padding: 10px;">[Flags]

public
enum Column

{

&nbsp;&nbsp;&nbsp; None =
0,

&nbsp;&nbsp;&nbsp;
Priority = 1 &lt;&lt; 0,

&nbsp;&nbsp;&nbsp;
Customer = 1 &lt;&lt; 1,

&nbsp;&nbsp;&nbsp;
Contract = 1 &lt;&lt; 2,

&nbsp;&nbsp;&nbsp;
Description = 1 &lt;&lt; 3,

&nbsp;&nbsp;&nbsp; Tech =
1 &lt;&lt; 4,

&nbsp;&nbsp;&nbsp;
Created = 1 &lt;&lt; 5,

&nbsp;&nbsp;&nbsp;
Scheduled = 1 &lt;&lt; 6,

&nbsp;&nbsp;&nbsp;
DueDate = 1 &lt;&lt; 7,

&nbsp;&nbsp;&nbsp; Status
= 1 &lt;&lt; 8,

&nbsp;&nbsp;&nbsp; All = int.MaxValue

};

&nbsp;

void
test()

{

&nbsp;&nbsp;&nbsp; //[Flags] 속성을 사용하면
아래와 같은 코드가 가능합니다.(두 속성을 하나의 변수에 담는 것):

&nbsp;&nbsp;&nbsp; Column MyColumns = Column.Customer | Column.Contract;

&nbsp;

&nbsp;&nbsp;&nbsp; //값이 존재하는지 확인:

&nbsp;&nbsp;&nbsp; if
((MyColumns &amp; Column.Customer) != 0) return;

&nbsp;

&nbsp;&nbsp;&nbsp; //특정 값을 추가:

&nbsp;&nbsp;&nbsp;
MyColumns |= Column.Tech;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


&nbsp;&nbsp;&nbsp; //특정 값을 제거:

&nbsp;&nbsp;&nbsp;
MyColumns &amp;= ~Column.Tech;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


&nbsp;&nbsp;&nbsp; //특정 값을 반전(1은 0으로, 0은 1로):

&nbsp;&nbsp;&nbsp;
MyColumns ^= Column.Contract;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


&nbsp;&nbsp;&nbsp; //모든 값 삭제:

&nbsp;&nbsp;&nbsp;
MyColumns = Column.None;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


&nbsp;&nbsp;&nbsp; //모든 값 설정:

&nbsp;&nbsp;&nbsp;
MyColumns = Column.All;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


&nbsp;&nbsp;&nbsp; //특정 값을 제외하고 모두
설정:

&nbsp;&nbsp;&nbsp;
MyColumns = Column.All ^ Column.Tech ^ Column.Status;

&nbsp;

}</div>

enum의 Flag 연산!