aspnet 4 new features

ASP.NET 4New Features

Erkan BALABAN

What’s new at a glance?Metakeyword & MetadescriptionViewStateClientIDRoutingListView, Formview, CheckBoxList,

RadioButtonListChart ControlWeb.config, Browser capabilities, MenuExtensible Output Caching

MetaKeyword & MetaDescription protected void Page_Load(object sender, EventArgs e) {

Page.MetaDescription = "ASP.NET 4'ün yeni özellikleri";Page.MetaKeywords = "ASP.NET 4";

}

<%@ Page Language="C#" AutoEventWireup="true" MetaKeywords="ASP.NET 4" MetaDescription="ASP.NET 4'ün yeni özellikleri" CodeBehind="MetaKeyword.aspx.cs" Inherits="ASPNET4.MetaKeyword" %>

MetaKeyword &MetaDescription <html xmlns="http://www.w3.org/1999/xhtml"> <head>

<title> </title><meta name="description" content="ASP.NET

4’ün yeni özellikleri" /><meta name="keywords" content="ASP.NET 4" /></head> <body>

(Page Description overrides)

ViewState improvementsASP.NET 3.x

EnableViewState (true, false)Page level, server level

ASP.NET 4 ViewStateMode

Enabled Disabled Inherit (Default)

ViewState improvements<%@ Page Language="C#"

AutoEventWireup="true" CodeBehind="ViewState.aspx.cs" ViewStateMode="Disabled" Inherits="ASPNET4.ViewState" %>

.....

<asp:Label ID="Label1" runat="server“ViewStateMode="Enabled"Text="Label"></asp:Label>

ViewState improvementsCode behind :Label1.ViewStateMode = ViewStateMode.Disabled;

NOTE : If we disabled the viewstate through EnableViewState property, setting any values for ViewStateMode property will make no impact.

ClientIDASP.NET 3.x and earlier versions

<input name="ctl00$ContentPlaceHolder1$TextBox2" type="text" id="ctl00_ContentPlaceHolder1_TextBox2" />

ClientIDClientIDMode

AutoID (Default, old name is Legacy) InheritPredictableStatic

ClientID (Demo)public class Oyunlar{ public string Isim { get; set; } public string Sirket { get; set; }}

List<Oyunlar> oyunListesi = new List<Oyunlar>{

new Oyunlar { Isim = "Hitman", Sirket = "IO Interactive" },new Oyunlar { Isim = "Crysis", Sirket = "Crytek Studios" },new Oyunlar { Isim = "Assassin's Creed", Sirket = "Gingerbread Studios" },new Oyunlar{ Isim = "Call of Duty", Sirket = "N-Space" }

};

ClientID (Demo)<asp:GridView ID="GridView1" runat="server" ClientIDMode="AutoID"

AutoGenerateColumns="false"> <Columns> <asp:TemplateField> <ItemTemplate> <asp:Label runat="server" ID="Label1" Text='<%# Bind("Isim")

%>' /> </ItemTemplate> </asp:TemplateField> <asp:TemplateField> <ItemTemplate> <asp:Label runat="server" ID="Label2" Text='<%# Bind("Sirket") %>'

/> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView>

ClientIDMode="AutoID"HitmanIO Interactive

CrysisCrytek Studios

Assassin's Creed

Gingerbread Studios

ClientIDMode="Inherit"Hitman IO Interactive

Crysis Crytek Studios

Assassin's Creed Gingerbread

Studios

ClientIDMode="Predictable"ClientIDRowSuffix="Isim”

Hitman IO Interactive

Crysis Crytek Studios

Assassin's Creed

Gingerbread Studios

ClientIDMode="Static"HitmanIO Interactive

CrysisCrytek Studios

ClientIDMode (Control Level) <asp:GridView

ID="GridView1"

runat="server"

ClientIDMode="AutoID"

AutoGenerateColumns="false">

</asp:GridView>

ClientIDMode (Page Level)<%@ Page Language="C#"

AutoEventWireup="true"

ClientIDMode="Predictable"

CodeBehind="ClientID2.aspx.cs"

Inherits="ASPNET4.ClientID2" %>

ClientIDMode (Application Level)

<system.web>

<pages

clientIdMode="Predictable"></pages>

</system.web>

RoutingASP.NET MCV

System.Web.Routing;

http://www.mysite.com/products/software

http://www.mysite.com/ products.aspx?category=software

Routingvoid Application_Start(object sender, EventArgs e)

{

RouteTable.Routes.Add("Product",

new Route("Products/{category}",

new

PageRouteHandler("~/Products.aspx")));

}

RoutingRouteParameter

<asp:SqlDataSource ID="SqlDataSource1" runat="server"> <SelectParameters> <asp:RouteParameter Name="Category"

RouteKey="category" /> </SelectParameters> </asp:SqlDataSource>

Runat=“server”Is it dead?Code snippet

Textbox + tabLabel + tab

List View Control EnhancementCome with ASP.NET 3.5

Does not require a layout template

Has all the functionality of the GridView control

Gives you complete control over the output

<asp:ListView ID="ListView1" runat="server"> <ItemTemplate> <% Eval(“Isim")%> </ItemTemplate></asp:ListView>

Form View Control Enhancement .NET 3.x and earlier versions notation<asp:FormView ID="FormView1" runat="server"> <ItemTemplate>ASP.NET 4</ItemTemplate> </asp:FormView>

At browser<table cellspacing="0" border="0" id="FormView1"

style="border-collapse:collapse;"><tr>

<td colspan="2"> ASP.NET 4</td> </tr></table>

Form View Control EnhancementNew player : RenderOuterTable

<asp:FormView ID="FormView2" runat="server" RenderOuterTable="false">

<ItemTemplate>ASP.NET 4</ItemTemplate></asp:FormView>

ASP.NET 4

CheckBoxList & RadioButtonListASP.NET 3.x and earlier

RepeatLayout Flow Table

ASP.NET 4RepeatLayout

Flow Table OrderedList UnorderedList

ChartControl35 distinct chart typesAn unlimited number of chart areas, titles, legends, and annotations.A wide variety of appearance settings for all chart elements. 3-D support for most chart types. Smart data labels that can automatically fit around data points. Strip lines, scale breaks, and logarithmic scaling. More than 50 financial and statistical formulas for data analysis and

transformation. Simple binding and manipulation of chart data. Support for common data formats, such as dates, times, and currency. Support for interactivity and event-driven customization, including

client click events using AJAX.State management.Binary streaming.

ChartControl

Web.config File MinificationNew .NET Framework bigger web.config

Tell Visiual Studio which framework version targeting

<?xml version="1.0"?><configuration> <system.web> <compilation targetFramework="4.0" /> </system.web></configuration>

Major config elements moved to machine.config

Browser CapabilitiesHttpBrowserCapabilities

Now supports for Google ChromeResearch in Motion BlackBerry,Apple iPhone.

Using for detect supporting Javascript version or page requested by a mobile device.

Persisting Row Selectionin Data ControlsGridview and ListView

EnablePersistedSelection

<asp:GridView id="GridView2" runat="server" EnablePersistedSelection="true"></asp:GridView>

Disabling ControlscontrolRenderingCompatibilityVersion

Set to 4.0Test

<asp:Label id="Label" runat="server" Text="Test" Enabled="false">

Set to 3.5Test

Menu Control ImprovementsRunders as unordered list<div id="Menu1"> <ul> <li><a href="#" onclick="...">Home</a></li> <li><a href="#" onclick="...">About</a></li> </ul></div>

Extensible Output CachingEnables you to configure one or more custom

output-cache providers

Output-cache providers can use any storage mechanism to persist HTML content including local or remote disks, cloud storage, and distributed cache enginesOutput-cache providers can use any storage mechanism to persist HTML content

System.Web.Caching.OutputCacheProvider

Extensible Output Caching<caching> <outputCache defaultProvider="AspNetInternalProvider"> <providers> <add name="DiskCache"

type="Test.OutputCacheEx.DiskOutputCacheProvider, DiskCacheProvider"/> </providers> </outputCache></caching>

<%@ OutputCache Duration="60" VaryByParam="None“ providerName="DiskCache" %>

Extensible Output CachingGlobal.asax :public override string GetOutputCacheProviderName

(HttpContext context){ if

(context.Request.Path.EndsWith("Advanced.aspx")) return "DiskCache"; else return

base.GetOutputCacheProviderName(context);}

Permanently Redirecting a PageResponse.Redirect : HTTP 302 (Temporary

Redirect)RedirectPermanent : HTTP 301 (Permenant Redirect)

RedirectPermanent("/newpath/foroldcontent.aspx");

Search engines and other user agents that recognize permanent redirects

Extensible Request ValidationCross-site scripting (XSS) attacksWe can use custom request-validation logic<httpRuntime

requestValidationType="Samples.MyValidator, Samples" />

public class CustomRequestValidation : RequestValidator{ protected override bool IsValidRequestString( HttpContext context, string value, RequestValidationSource requestValidationSource, string collectionKey, out int validationFailureIndex) {...}}

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aspnet 4 new features

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