ASP.NET Razor 视图引擎编程参考
ASP.NET Razor 视图引擎编程参考
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Rasor 视图引擎
http://msdn.microsoft.com/zh-cn/library/ff849693.aspx
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=b7937c34-3b53-47b7-ae17-5a72fa700472&displaylang=en
http://aspnet.codeplex.com/wikipage?title=WebPages&referringTitle=Home
优点：“干练简单”
可以用它来做MVC视图引擎，也可以直接用它来编写传统类似php式的网站，非常轻便。
语法识别
嵌入变量
<h3>Hello @name, the year is @DateTime.Now.Year </h3>
<a href="/products/details/@productId">the product</a>
表达式（括号）
<p>Your message : @("Number is: " + number) </p>
代码块（花括弧）
@{
int number = 1;
string message = "Number is " + number;
}
@{ var myQuote = @"The person said: ""Hello, today is Monday."""; }
<text>标签
if (i > 0) {
<text>;</text>
}
智能区别@
<p>mail [email protected] telling : @Date.Now.</p>
可以显式地打@@来用另外一个”@”字符进行转义
判断
@if(products.Count == 0){
<p>Sorry - no products in this category </p>
}else{
<p>We have a products for you!</p>
}
@if (DateTime.Now.Year == 2010){
<span>
the date: @DateTime.Now
</span>
}
循环
<ul id="products">
@foreach(var p in products){
<li>@p.Name ($@p.Price) </li>
}
</ul>
模板
<!DOCTYPE html>
<html>
<body>
<div>@RenderSection("menu", optional:true)</div>
<div>@RenderBody()</div>
<div>@RenderSection("footer", optional:true)</div>
</body>
</html>
-----------------------------
@{LayoutPage = "sitelayout.cshtml";}
<p>current datetime: @DateTime.Now</p>
@section menu{
<ul id="sub-menu">
<li>item1</li>
<li>item2</li>
</ul>
}
@section footer{
<p>this is my custom footer</p>
}
辅助函数
@Html.LabelFor(m => m.ProductID)
@Html.TextBoxFor(m => m.ProductID)
@Html.ValidationMessageFor(m => m.ProductID)
创建辅助函数
@helper ProductListing(List<Product> products){
<ul>
@foreach(var p in products){
<li>@p.Name ($@p.Price)</li>
}
</ul>
}
<div>@ProductListing(Model.Products)</div>
函数参数
<h1>small bakery products</h1>
@Grid.Render(
data: Model.products,
tableStyle: "grid",
headerStyle: "head",
alternationRowStyle: "alt",
columns: Grid.Columns(
Grid.Column("Name", "Product", style:"Product"),
Grid.Column("Description", format:@(<i>@item.Description</i>),
Grid.Column("Price", format:@<span>$@item.Price</span>)
)
)
函数
@using System.Text;
@functions {
public static IHtmlString Repeat(int times, Func<int, object> template) {
StringBuilder builder = new StringBuilder();
for(int i = 0; i < times; i++) {
builder.Append(template(i));
}
return new HtmlString(builder.ToString());
}
}
@Repeat(10, @<li>List Item</li>);
@Repeat(10, @<li>List Item #@item</li>);
类型转换
var myStringNum = "539";
var myStringBool = "True";
var myStringFloat = "41.432895";
var myStringDec = "10317.425";
var myDateString = "12/27/2010";
-------------------------------
if(myStringNum.IsInt()==true)
var myIntNumber = myStringNum.AsInt();
var myVar = myStringBool.AsBool();
var myFloatNum = myStringFloat.AsFloat();
var myDecNum = myStringDec.AsDecimal();
var newDate = myDateString.AsDateTime();
文件
访问cshtml文件均无需加扩展名。如：~/Gallery/Index
下划线开始的cshtml文件不能单独运行（一般是做为模板文件、公共控件）
几个特殊文件
_init.cshtml
@{
// Set the layout page for the whole site
LayoutPage = "_Master.cshtml";
}
_start.cshtml
@{
WebSecurity.InitializeDatabaseConnection("PhotoGallery", "UserProfiles", "UserId", "Email", true);
}
--------------------------------
-- more
--------------------------------
@Inherits System.Web.Mvc.WebViewPage
View.Title = "Home Page";
LayoutPage = "~/Views/Shared/_layout.cshtml";
View.Message
Login
check
if (WebSecurity.IsAuthenticated){
欢迎您,<b>@WebSecurity.CurrentUserName</b>!
@Html.ActionLink("注销", "LogOff", "Account")
}
else{
@Html.ActionLink("登录", "LogOn", "Account")
}
@if (WebSecurity.IsAuthenticated) {
<span>Welcome <b><a href="@Href("~/Account/ChangePassword")">@WebSecurity.CurrentUserName</a></b>!
[ <a href="@Href("~/Account/Logout")">Logout</a> ]</span>
} else {
<span>[ <a href="@Href("~/Account/Login")">Login</a> | <a href="@Href("~/Account/Register")">Register</a> ]</span>
}
login
// Attempt to login to the Security object using provided creds
if (WebSecurity.Login(username, password, rememberMe)) {
Response.Redirect("~/");
}
logout
WebSecurity.Logout();
regist
WebSecurity.CreateAccount(email, password, requireEmailConfirmation)
WebSecurity.ConfirmAccount(confirmationToken)
WebSecurity.GetUserId(email)
WebSecurity.GeneratePasswordResetToken(email)
password
WebSecurity.ResetPassword(passwordResetToken, newPassword)
WebSecurity.ChangePassword(WebSecurity.CurrentUserName, currentPassword, newPassword)
Template
@RenderPage("/Shared/_Header.cshtml")
@RenderPage("/Shared/_Footer.cshtml")
@RenderBody()
@RenderSection("fffff")
microsoft sql server compact edition
var db = Database.OpenFile("database.sdf");
var sql = "select * from table1";
var data = db.Query(sql);
Database.Execute(sql)
fileupload
@FileUpload.GetHtml(
initialNumberOfFiles: 1,
allowMoreFilesToBeAdded: false,
includeFormTag: true,
uploadText: "Upload"
)
Image
WebImage.Resize();
WebImage.FlipVertical();
.FlipHorizontal();
.FlipLeft();
.FlipRight();
WebImage.AddTextWatermark();
WebImage.AddImageWatermark();
Video
@Video.Flash(
path: "testFlash.swf",
width: "400",
height: "600",
play: true,
loop: true;
menu: false,
bgColor: "red",
quality: "medium",
scale: "exactfit",
windowMode: "transparent"
);
@Video.MediaPlayer()
@Video.Silverlight()
Toolkit(Microsoft.WebPages.Helpers.Toolkit.dll)
Twitter
@Twitter.Profile("haacked")
Facebook
Gravator
Recaptcha
Form Postback
<form action="" method="post">
<p>
<label for="text1">First Number:</label>
<input type="text" name="text1" />
</p>
<p>
<label for="text2">Second Number:</label>
<input type="text" name="text2" />
</p>
<p><input type="submit" value="Add" /></p>
</form>
<p>@totalMessage</p>
@{
var totalMessage = "";
if(IsPost) {
var num1 = Request["text1"];
var num2 = Request["text2"];
var total = num1.AsInt() + num2.AsInt();
totalMessage = "Total = " + total;
}
}
mail
Mail.Send(
to: email,
subject: "Please reset your password",
body: "Use this password reset token to reset your password. The token is: " + resetToken + @". Visit <a href=""" + resetUrl + @""">" + resetUrl + "</a> to reset your password."
);
Mail.SmtpServer.IsEmpty()
--------------------------------
-- 可用的 MVC 辅助函数和辅助类
--------------------------------
@Inherits System.Web.Mvc.WebViewPage
@Inherits System.Web.Mvc.WebViewPage<IList<RasorSample.Models.Category>>
@model LIst<Product>
@PageData["Title"] 用于页面内数据共享，如masterpage和contentpage共享
@Href("~/Site.css") 获取url
@WebSecurity 封装了用户安全相关函数
@UrlData[0] 应该等效于Request["..."]
@Html.PageLink("View", (string)similarTags[i].TagName, (string)similarTags[i].TagName)
<a href="@HrefAttribute("View", tag.TagName)">
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