DocumentForEFCodeFirst
*:first-child {
margin-top: 0 !important;
}
body>*:last-child {
margin-bottom: 0 !important;
}
/* BLOCKS
=============================================================================*/
p, blockquote, ul, ol, dl, table, pre {
margin: 15px 0;
}
/* HEADERS
=============================================================================*/
h1, h2, h3, h4, h5, h6 {
margin: 20px 0 10px;
padding: 0;
font-weight: bold;
-webkit-font-smoothing: antialiased;
}
h1 tt, h1 code, h2 tt, h2 code, h3 tt, h3 code, h4 tt, h4 code, h5 tt, h5 code, h6 tt, h6 code {
font-size: inherit;
}
#mian h1 {
font-size: 28px;
color: #006633;
background-color:#f5f5f5;
}
#mian h2 {
font-size: 24px;
border-bottom: 1px solid #ccc;
color: #6fa833;
border-left:13px solid #6fa833;
background-color:#6fa833;
padding-left:5px;
color:#fff;
}
#mian h3 {
font-size: 18px;
height:40px;
line-height:40px;
border-left:13px solid #6fa833;
background-color:#f5f5f5;
padding-left:5px;
color:#6fa833;
}
h4 {
font-size: 16px;
border-left:13px solid #00cc33;
background-color:#f5f5f5;
padding-left:5px;
color:#00cc33;
}
h5 {
font-size: 14px;
background-color:#f5f5f5;
padding-left:5px;
height:25px;
color:#6fa833;
}
h6 {
color: #777;
font-size: 14px;
}
body>h2:first-child, body>h1:first-child, body>h1:first-child+h2, body>h3:first-child, body>h4:first-child, body>h5:first-child, body>h6:first-child {
margin-top: 0;
padding-top: 0;
}
a:first-child h1, a:first-child h2, a:first-child h3, a:first-child h4, a:first-child h5, a:first-child h6 {
margin-top: 0;
padding-top: 0;
}
h1+p, h2+p, h3+p, h4+p, h5+p, h6+p {
margin-top: 10px;
}
/* LINKS
=============================================================================*/
a {
color: #4183c4;
text-decoration: none;
font-weight:bolder;
}
a:hover {
text-decoration: underline;
}
/* LISTS
=============================================================================*/
ul, ol {
padding-left: 30px;
}
ul li > :first-child,
ol li > :first-child,
ul li ul:first-of-type,
ol li ol:first-of-type,
ul li ol:first-of-type,
ol li ul:first-of-type {
margin-top: 0px;
}
ul ul, ul ol, ol ol, ol ul {
margin-bottom: 0;
}
dl {
padding: 0;
}
dl dt {
font-size: 14px;
font-weight: bold;
font-style: italic;
padding: 0;
margin: 15px 0 5px;
}
dl dt:first-child {
padding: 0;
}
dl dt>:first-child {
margin-top: 0px;
}
dl dt>:last-child {
margin-bottom: 0px;
}
dl dd {
margin: 0 0 15px;
padding: 0 15px;
}
dl dd>:first-child {
margin-top: 0px;
}
dl dd>:last-child {
margin-bottom: 0px;
}
/* CODE
=============================================================================*/
pre, code, tt {
font-size: 12px;
font-family: Consolas, "Liberation Mono", Courier, monospace;
}
code, tt {
margin: 0 0px;
padding: 0px 0px;
white-space: nowrap;
border: 1px solid #eaeaea;
background-color: #F7F7FF;
border-radius: 3px;
border-left:4px solid #e2ddc7;
}
pre>code {
margin: 0;
padding: 0;
white-space: pre;
border: none;
background: transparent;
}
pre {
background-color: #f8f8f8;
border: 1px solid #ccc;
font-size: 13px;
line-height: 19px;
overflow: auto;
padding: 6px 10px;
border-radius: 3px;
}
pre code, pre tt {
background-color: transparent;
border: none;
}
kbd {
-moz-border-bottom-colors: none;
-moz-border-left-colors: none;
-moz-border-right-colors: none;
-moz-border-top-colors: none;
background-color: #DDDDDD;
background-image: linear-gradient(#F1F1F1, #DDDDDD);
background-repeat: repeat-x;
border-color: #DDDDDD #CCCCCC #CCCCCC #DDDDDD;
border-image: none;
border-radius: 2px 2px 2px 2px;
border-style: solid;
border-width: 1px;
font-family: "Helvetica Neue",Helvetica,Arial,sans-serif;
line-height: 10px;
padding: 1px 4px;
}
/* QUOTES
=============================================================================*/
/*blockquote {
border-left: 4px solid #DDD;
padding: 0 15px;
color: #777;
}*/
blockquote{margin:20px 0;padding:15px 20px 15px 60px;background:#e2ddc7 url(‘http://files.cnblogs.com/files/farb/o_title.gif‘)
no-repeat 9px;font-size:15px;font-family:‘Microsoft Yahei‘;-webkit-box-shadow:0 0 8px #aaa;-ms-box-shadow:0 0 8px #aaa;box-shadow:0 0 8px #aaa;clear:both}
blockquote>:first-child {
margin-top: 0px;
}
blockquote>:last-child {
margin-bottom: 0px;
}
/* HORIZONTAL RULES
=============================================================================*/
hr {
clear: both;
margin: 15px 0;
height: 0px;
overflow: hidden;
border: none;
background: transparent;
border-bottom: 4px solid #ddd;
padding: 0;
}
/* TABLES
=============================================================================*/
table th {
font-weight: bold;
}
table th, table td {
/*border: 1px solid #ccc;
padding: 6px 5px;*/
}
table tr {
/*border-top: 1px solid #ccc;*/
background-color: #fff;
}
table tr:nth-child(2n) {
background-color: #f8f8f8;
}
/* IMAGES
=============================================================================*/
img {
max-width: 100%;
border:1px solid #999;
}
-->
什麼是Code-First
實體框架從4.1版本開始引入Code-First方法。Code-First 主要應用在領域驅動設計.用Code-First方法，能夠讓你集中在領域設計并一开始就為你需要的領域對象創建類，而不是先設計你的數據庫然後在根據數據庫設計來創建類。Code-First API（應用程序接口）會根據你的實體類和配置即時創建數據庫。
作為一個開發人員，第一步索要做的是要寫C#或者VB.net的類和上下文類。當你運行程序時，Code-First APIS會創建一個新的數據庫（如果數據庫不存在的情況下），并利用code-First的默認約定映射類到數據庫。你也可通過DataAnnotation （元數據）屬性或者fluent API來配置你的領域類來覆蓋默認的約定，達到你想要的數據表映射結果。
Code-First基本工作流程
- 寫應用程序領域類和上下文類
- 為額外的映射需求配置領域類
- 單擊F5運行程序
- Code-First API 用領域類創建新數據庫或者映射到已經存在的數據庫
- 添加默認種子或者測試數據到數據庫
- 最後發佈程序
在接下來的一章讓我們一起來實現一個簡單的例子。
本教程适合没有接触过EF Code-First 新手，在开发过程中为了实现一些最基本的功能，开发实例可能不会按照一定的设计模式来实现。每个人学习习惯不同，采用方法也不同，此连载教程主要作为个人学习笔记，如果对您的学习有帮助，欢迎阅览……如发现错误还请及时指出。