主攻ASP.NET.3.5.MVC架构之重生:HtmlHelper(一)
HtmlHelper
FormExtensions静态类
BeginForm,BeginRouteForm,EndForm 三种类型
FormMethod.Post优先级最高
可以在多个地方设置action参数，htmlAttributes优先级别最高
BeginRouteForm扩展方法，提供开发者使用
；
设置路由值字典类型的id值和class值
EndForm
<%Html.EndForm(); %>
代码
<%using (Html.BeginForm("index", "home", FormMethod.Post, new { action = "/Controller/actionName" }))
{%>
表单内容
<%}
%>
<%using (Html.BeginForm("index", "AfIndex",
new RouteValueDictionary { { "id", 123 } },
FormMethod.Post,
new RouteValueDictionary { { "class", "cssName" } }
))
{%>
13重载方法
<%}
%>
<%using (Html.BeginRouteForm(new { action = "action" }))
{%>
BeginRouteForm扩展方法，提供开发者使用
<%}
%>
<%Html.EndForm(); %>
InputExtensions类
CheckBox,Hidden,Password,RadioButton,TextBox五种类型
CheckBox
代码：
<%=Html.BeginForm("CheckBox","Home") %>
<fieldset>
<legend>设置字体:</legend>
<%=Html.CheckBox("MyCheckBox1",true,new{id="checkBox1"}) %>
<label for="checkBox1">黑体</label>
<%=Html.CheckBox("MyCheckBox2",false,new{id="checkBox2"}) %>
<label for="checkBox1">斜体</label>
<br/>
<input type="submit" value="Submit" />
</fieldset>
<%Html.EndForm(); %>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<h2>CheckBox</h2>
<%=Html.TextBox("t1", ViewData["t1"])%>
<%=Html.TextBox("t2", ViewData["t2"])%>
</asp:Content>
public ActionResult CheckBox(FormCollection formcollection)
{
//通过索引获得复选框控件状态值字符串
bool myCheckBox1 = formcollection[0].Contains("true");
//通过键值获得复选框控件状态值字符串
bool myCheckBox2 = formcollection["MyCheckBox2"].Contains("true");
if (myCheckBox1)
ViewData["t1"] = "1选中";
else
ViewData["t1"] = "1未选中";
if (myCheckBox2)
ViewData["t2"] = "2选中";
else
ViewData["t2"] = "2未选中";
return View();
}
Hidden
<%=Html.Hidden("name",123) %>
Password
<%=Html.Password("password",123) %>
RadioButton
<% using (Html.BeginForm("RadioButton", "Home"))
{%>
<fieldset>
<legend>设置字号</legend>
<%=Html.RadioButton("MyRadioButton","MyValue1",true,new{id="MyRadioButton1"})%>
<label for="MyRadioButton1">
10#</label>
<%=Html.RadioButton("MyRadioButton","MyValue2",true,new{id="MyRadioButton2"})%>
<label for="MyRadioButton1">
20#</label>
<input class="button" type="submit" value="提 交" />
</fieldset>
<%} %>
<h2>RadioButton</h2>
<%=Html.TextBox("t1", ViewData["MyRadioButton"])%>
public ActionResult RadioButton(FormCollection formcollection)
{
string radioButtion1=formcollection[0];
string radioButtion2 = formcollection["MyRadioButton1"];
ViewData["MyRadioButton"] = radioButtion1;
return View();
}
TextBox
<%=Html.TextBox("Message") %>
<%=Html.TextBox("myTextBox", null, new { size=50})%>
LinkExtensions类
ActionLink，RouteLink两种类型
ActionLink
ActionLink扩展方法主要实现一个连接
<%=Html.ActionLink("actionlink", "About")%>
<%=Html.ActionLink("actionlink", "About","Home")%>
RouteLink
<%=Html.RouteLink("routLink", "default", new { id = 100 })%>
RenderPartialExtensions类
RenderPartial该用户控件主要用来显示数据表Categories
在ASP.NET MVC中使用RenderPartial方法时的一些性能问题，记住两点：一是在ASP.NET MVC应用程序发布到生产服务器时，别忘了关闭Debug模式（对于ASP.NET WebForm应用程序也是一样）；二时尽可能的减少调用RenderPartial方法的次数，如通过在UserControl中进行遍历等方法。
摘自 小念头-Cube.Net
补充：Web开发 , ASP.Net ,
