|Exam Name||:||TS- Microsoft .NET Framework 3.5 Windows Forms Application Development|
|Questions and Answers||:||114 Q & A|
|Updated On||:||February 22, 2019|
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70-505-VB exam Dumps Source : TS- Microsoft .NET Framework 3.5 Windows Forms Application Development
Test Code : 70-505-VB
Test Name : TS- Microsoft .NET Framework 3.5 Windows Forms Application Development
Vendor Name : Microsoft
Q&A : 114 Real Questions
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these days, Microsoft made purchasable for download the liberate Candidate of its Microsoft .internet Framework 4.5 platform, with quite a few improvements in terms of aspects and balance.
the brand new framework free up changed into preceded through the availability of a beta taste a few months ago, and it should be followed by a closing edition within the no longer too far away future.
the brand new Microsoft .net Framework four.5 RC arrives as an in-area update to .net Framework 4, and presents compatibility with purposes designed for that edition of the platform.
“This edition of the .net Framework runs side-by using-aspect with .internet Framework 3.5 and previous models, but performs an in-area update for the .internet Framework four,” Microsoft explains.
the new liberate of the Framework, mixed with the C# or visible basic programming languages, presents builders the chance to come up with applications for the Metro interface in home windows eight.
“The .net Framework four.5 RC comprises giant language and framework enhancements for C# and visual simple so for you to extra effectively write asynchronous code, the mixing of manage circulate in synchronous code, a responsive UI, and internet app scalability,” Microsoft explains.
“The .net Framework four.5 RC adds sizeable advancements to different functional areas corresponding to ASP.internet, Managed Extensibility Framework, home windows communication foundation, windows Workflow foundation, and home windows id basis.”
The same as the.web Framework 4.5 Beta earlier than it, the liberate Candidate version of the platform arrives with enhanced efficiency, in addition to with stronger reliability and protection.
builders attracted to discovering more on how they can installation applications constructed with visible Studio 2012 RC and .net Framework four.5 RC in a creation ambiance should still head over to Microsoft’s website for that.
The .net Framework four.5 RC will also be put in on x86 and x64 machines running under windows 7, home windows Server 2008, home windows Server 2008 R2 (only x64), and windows Vista.
it'll even be cited that windows 8 unlock Preview and windows Server 2012 liberate Candidate include the .internet Framework 4.5 RC packed interior, which means that installing on these working programs is unnecessary.
download Microsoft .internet Framework 4.5 RC
informationMicrosoft To subject Separate .internet Framework Patches for more recent windows programs
Microsoft is planning initiate a modified .web Framework month-to-month patch beginning scheme for newer windows systems, possibly starting subsequent month, based on a Wednesday announcement.
presently, Microsoft releases its .net Framework patches mixed with home windows patches every month on "update Tuesdays," or the 2nd Tuesday of each and every month. below the brand new method, .net Framework patches will arrive one by one from home windows patches on update Tuesdays.
The patches will be "cumulative updates," that means that they contain previous updates, in addition to new ones. Microsoft might not offer separate safety and first-rate cumulative updates with the new separate .web Framework patch scheme, even though it does present that method with windows 10 patches.
Microsoft did not specify an actual date when this new replace policy of keeping apart .internet Framework patches from home windows patches would take effect, but it did indicate that it is going to delivery when the "home windows 10 October 2018 replace" receives launched. that is probably a reference to the subsequent main feature update to home windows 10. Microsoft supplies fundamental characteristic updates to windows 10 twice per 12 months, within the spring and in the fall, and that they customarily arrive on update Tuesdays, so it's likely that the brand new policy will kick off on Oct. 9, however Microsoft failed to specify that date.
Microsoft made this policy alternate to provide agencies enhanced patching flexibility.
"This new strategy will offer you greater flexibility on setting up .internet Framework updates," the announcement indicated, including that it might support IT professionals "more selectively examine line of business purposes before largely deploying."
youngsters, the brand new coverage won't add enhanced flexibility for businesses using older windows models. It just takes impact for companies the use of the coming home windows 10 October 2018 update (version 1809) and more moderen types, as smartly as the coming windows Server 2019 product.
agencies the use of windows 10 edition 1803 and older will still get the same combined .net Framework and windows patches every month. Microsoft failed to describe what occurs to older home windows Server models, but doubtless the patches that arrive should be the combined ones. home windows 7 and home windows 8.1 clients will nonetheless get "distinctive .internet Framework updates, per windows version," Microsoft's announcement indicated.
This strategy where home windows and .web Framework patches are separate may be usually substantial with the aid of groups that use patch administration systems to handle when updates get put in on contraptions. Microsoft specially mentioned that home windows Server replace capabilities users will see the separate .net Framework patches. windows 10 users that use the home windows update provider to set up updates automatically likely won't be aware the trade, Microsoft's announcement indicated.
IT pros that entry the Microsoft replace Catalog to down load patches should be capable of finding these separate .internet Framework patches. they'll be listed by their advantage Base (KB) article numbers, Microsoft's announcement defined.
Reboots are fundamental in most cases after setting up .net Framework cumulative updates. besides the fact that children, the announcement advised that the new method with separate patches would not always result in more gadget reboots for corporations, reckoning on IT pro movements. right here's how Microsoft expressed that factor:
home windows update will orchestrate making sure updates that ship on the same time are processed collectively and handiest require a single reboot. information to WSUS/IT Admins is to proceed to ensure that updates are grouped and deployed together to evade any competencies further reboots.
the brand new coverage exchange seemingly may be welcomed through IT execs for the explanations that Microsoft described. it's the newest change of many, adding to Microsoft's most recent explanation of its windows 10 patching process back in August.
The separated .net Framework patches also may aid agencies when Microsoft releases wrong patches. as an instance, a few of Microsoft's mistaken July 10 patches had been home windows 10 updates, however some had been principally .internet Framework patches, which obtained mounted in August.
Kurt Mackie is senior information producer for the 1105 business Computing neighborhood.
Microsoft has tested problems with the July 2018 security and satisfactory Rollup updates for .web Framework, based on a document with the aid of Softpedia.
The report cited that the updates may cause app crashes after they're put in.
Microsoft issued an advisory on the matter, in which it special skills issues with apps no longer working, or failing to beginning.
“These patches have been launched to all supported windows versions, including windows 7, home windows 8.1, and home windows 10. All models of windows 10 are affected as well, including the April 2018 update,” pointed out the record.
Microsoft has as a result pulled the updates, and counseled that users uninstall the patches as a repair.
“in case you put in the July 2018 replace and haven't yet viewed any poor behaviour, we suggest that you depart your systems as-is, however closely video display them and confirm that you apply upcoming .web Framework updates,” noted Microsoft.Now study: a way to deploy Linux on your pc
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This afternoon, Microsoft unveiled a slate of new enhanced releases, including an updated .NET Framework 3.5 SP1 that had been in beta only since February, and the first service pack for Visual Studio 2008 only six months after its premiere.
There was some early confusion today over just what "shrunk" in this latest slate of .NET Framework releases, but after going through the releases ourselves, we discovered what some Microsoft spokespersons meant to say in the beginning: The latest SP1 adds a new concept called the .NET Framework Client Profile, which enables an application's setup routine to include only those features it may require to serve as a .NET client, on a Windows platform where .NET Framework is not automatically installed -- for instance, XP SP2 or SP3, or Windows Server 2003. In short, it's a reduced profile for client-only applications that don't require the entire .NET to be distributed with them, and don't have the luxury of the entire .NET pre-installed.
That profile reduction, Microsoft now says, means that a reduction in redistributed code components of nearly 87%, to 26.5 MB.
"The Client Profile is streamlined to be focused 100% on Client Applications," Microsoft spokesperson Josh Rein told BetaNews this afternoon. ".NET Framework historically contained all components from service development, to client development, to server development, etc. in the core package. By removing the non-essential aspects for client [development], we were able to decrease the installation size."
As we discovered for ourselves this afternoon, the Framework itself has not shrunk. The full 3.5 SP1 package for application developers was a 231 MB package, with an additional 52 MB subsequent download. Meanwhile, the redistributable package, which contains the Common Language Runtime and the part those elements need to be executed, remains small at 2.8 MB.
Added to this service pack is a long-awaited feature that had been anticipated for SQL Server last year, called the Entity Data Model. Now considered a component of ADO.NET (the evolution of ActiveX Data Objects), it enables a new model for representing data that is more akin to object orientation than the typical table/record/entry breakdown.
Specifically, data items in an entity may now have complex properties. Those properties may themselves have structure, and the association between an entity and its properties forms a more direct relationship. For instance, in the old SQL model, there may be one table for an inventory item and another for a customer. A purchase order would be a list of third-order relationships that bind items of inventory to the customer who purchased them. In the new system, a purchase order entity may have a customer as its complex property.
The Entity model will also be used as an enhancement to ASP.NET Dynamic Data (related to ADO.NET, though not the same thing), a feature which was first previewed in a CTP last December. This enables developers to design database schemas on the fly using graphical representational models (like the one popularized in Microsoft Access), though which generate the underlying XML code automatically. This code will also now be generated for entities as well as the conventional model.
The ADO.NET Data Services Framework will follow up on this feature by applying the Representational State Transfer (REST) model, which is better suited to Web-driven databases. This model divides the users of a database into three departments. While the user directly interacts with a portlet, it is the intermediary consumer that transacts with the database server, or producer. This abstraction between the user of the data and the user of the database helps eliminate the tangles experienced when a complex database is distributed over the Web.
Being able to take advantage of these new features in programs is one of the key provisions of Visual Studio 2008 Service Pack 1, which was also released today. New "Designers" (code-building components) needed to be added for ADO.NET and ASP.NET AJAX to take advantage of the Entity model, as well as to improve overall reliability, and those new Designers were added to this latest release.
Another interesting feature of that new SP1 is the provision for something called the Visual Studio isolated shell. Essentially, it enables third parties to create custom-branded development environments that utilize the Visual Studio engine, and selected elements of its look and feel, though without having to represent itself as a VS knockoff.
Today building open source software at Microsoft is normal — but when I started at Microsoft in 2007, it sure wasn’t. It took a few years to figure out the right thing to do and to get the big ship that is Microsoft turned into the wind of open source. But we’re there now and I look back on those early challenges with a smile. This is my story of the first successful open source project at Microsoft and how it paved the way to where we are today.
In the late 90’s I was at a startup called Mustang Software that built software for tracking whether all the emails that a company received were answered in a timely manner. Before the startup was sold in 2000, I took my team to Orlando for the Microsoft Professional Developer conference where ASP+ (which eventually became the ASP.NET web stack) and C# were introduced. My team and I installed the preview at the conference and I instantly fell in love with .NET. I continued to use ASP.NET in my subsequent jobs.
It was the blog posts of Brad Abrams and Scott Guthrie about Atlas that got me thinking that I would like to be a part of what was happening at Microsoft
Then in 2006, Microsoft set up CodePlex as a place to share source code. One of the original web projects on CodePlex was code-named Atlas, which is now called the AJAX Control Toolkit. Atlas was one of the first projects that Microsoft ever built that was open source and the conversations and interest around it were impressive. It was the blog posts of Brad Abrams and Scott Guthrie about Atlas that got me thinking that I would like to be a part of what was happening at Microsoft.
I responded to the blog posts by writing an email to Brad — and he responded within a minute! We talked the next day on the phone, and within a week I was on the Microsoft campus going through the interview process. Suddenly, I was moving from sunny California to the more temperamental weather of Redmond, Washington.
I joined Brad Abrams’ team, which was responsible for all of ASP.NET. It was also responsible for the brand-new Silverlight, an early attempt to bring native .NET development to the browser, which had just released as version 1. ASP.NET MVC was in the early prototype stage and was only shown internally, although occasionally used as a recruiting tool, working to great effect on Phil Haack, who joined the team in October 2007 . Scott Hanselman also joined Microsoft around this time, although he was on a different team.
It’s no secret that ASP.NET MVC was a response by the ASP.NET team to the huge surge in popularity by Ruby on Rails
It’s no secret that ASP.NET MVC was a response by the ASP.NET team to the huge surge in popularity of Ruby on Rails — started back in 2004 by the inimitable David Heinemeier Hansson as part of Basecamp. By 2007, Ruby on Rails had been included with the latest version of Mac OS X! The combination of the Model-View-Controller pattern with the scaffolding that was Rails dramatically cut down the amount of plumbing code that a web developer needed to write. It made making forms-over-data web pages delightful, and web developers loved it.
ASP.NET MVC was also a response to the criticism of ASP.NET Web Forms. ASP.NET Web Forms had been built to bring all those Windows Forms developers to the web — without having to learn too much. And it worked, there were a huge number of new web developers created with ASP.NET Web Forms. But after several years of development, it was apparent that ASP.NET Web Forms had its problems too: The process of hiding the nature of the web from developers meant some ugliness under the hood.
For example, the way that C# code and HTML intermingled on an ASP.NET Web Forms page made it very difficult to build unit tests. And without tests, maintaining and modifying a large website got more difficult over time. If you did create tests, they were largely functional tests exercising the UI — and even today, that’s a brittle way to build tests. Any changes to a web page were very likely to break all the tests for that page.
The early prototypes of ASP.NET MVC were impressive, enough that Scott Guthrie decided to show them publicly for the first time at the first ALT.NET Conference in Austin, Texas. The ALT.NET movement had come out of passionate developers who loved working with .NET, but thought that open source tools should be a larger part of the equation.
At that time in Microsoft’s history, Not-Invented-Here syndrome was rampant — there was a tendency to discount any software that wasn’t made by Microsoft
At that time in Microsoft’s history, Not-Invented-Here syndrome was rampant — there was a tendency to discount any software that wasn’t made by Microsoft. And the attitude was reinforced by a lot of customers who were happy to use only Microsoft-built tools. This approach came to a head when Microsoft announced that it was building its own Object-Relational Mapper (ORM) called Entity Framework. Advocates for other ORM solutions like nHibernate were annoyed that yet-another-ORM was being built, rather than supporting existing solutions. Those advocates became the beginning of ALT.NET, and by October of 2007, they were producing their first conference.
Right from the start, Scott Guthrie said that MVC would be open source
At the ALT.NET conference, Scott Guthrie gave the overview of ASP.NET MVC, showing it for the first time in public. Scott Hanselman demonstrated building controllers for MVC in IronPython and Phil Haack did a similar demonstration using IronRuby. Everything demonstrated was prototype code and wouldn’t ship in the form they were shown in at the time, but it was an interesting start to what everyone hoped was a new era at Microsoft. Right from the start, Scott Guthrie said that MVC would be open source.
In the same week as the ALT.NET conference, Microsoft had also “source opened” the entire .NET Framework as the Reference Source. Now you could step into the underlying .NET Framework code while debugging your application. It wasn’t open source as we know it today, but it was another step down the path to open source.
MVC, along with Silverlight, were also the first products from the web team to be released “out-of-band.” It was taking 24–36 months for each new version of .NET and Visual Studio to come to fruition — as much as a year each for planning, coding and fixing to ship. It was apparent that this cycle wasn’t fast enough for the web world anymore, especially for MVC. After all, Ruby on Rails was putting out a new version every year.
By December of 2007, we released a Community Technology Preview (CTP) of MVC that provided basic tooling (a project template) for working with the recently released Visual Studio 2008 and .NET 3.5. The CTP was the first version of MVC that anyone could download and start experimenting.
In February 2008, ahead of the Mix 08 conference, a new version of MVC called the MIX Preview Release not only added a bunch of features that people had been asking for but a ton of new tooling, including direct support for open source testing frameworks like NUnit and MBUnit.
After the Mix 08 conference, the source code of MVC itself was also made available to download, compile and use for debugging. It wasn’t what we would expect today, that is, the team committing the code to the repository as it was coded. Rather, the development of MVC happened internally and then a cut of the code was shipped to CodePlex.
Interacting with the public on CodePlex was an early experiment with transparency on the path to making true open source projects
Moving copies of the MVC code and interacting with the public around it on CodePlex was an early experiment with transparency on the path to making true open source projects, and there were a ton of concerns internally at Microsoft about it. The goal was to push up updates every few weeks, with the hope that someday it would be daily… someday.
It was around that time that we ran into an interesting problem. A key part of ASP.NET MVC is routing — being able to direct requests to a controller. The folks over at ASP.NET Dynamic Data were also using routing for their technology, and we had each built our own implementations. It turns out that Not-Invented-Here syndrome could even extend to individual teams! It took some time to abstract our unique aspects of routing away from the codebase and to get to one routing engine, at that time as part of System.Web.
A side effect of this process was also to create the Routing Debugger. It started out as a private tool to help us understand what was going on with the new shared routing model, and ultimately it made sense to share it out into the world as well.
Naming the code releases was also an interesting problem. The initial release of ASP.NET MVC was called a Community Technology Preview. After that, we changed them to Preview Releases, some numbered, some not. But even those couldn’t come frequently enough at first to keep up our goal of new code arriving at CodePlex every few weeks, so we did a Source Refresh. It was a bit confusing, but we were learning as we went — eventually, the Previews came quickly enough that the alternative names stopped.
By September of 2008, Preview 5 of MVC was out — which was awesome, but even more important was jQuery
But it made sense to use jQuery. Much of the functionality that jQuery provided was going to be required to round out the features in MVC anyway. Why re-create the wheel (how’s that for a tone change)? And many of the different web products that we were making could take advantage of jQuery, so much so that Scott Guthrie announced on his blog that jQuery would ship with the next version of Visual Studio, which ended up being 2010.
The early version of Microsoft Azure was also out in the world at this point, and we experimented with making MVC work with Azure as a sample for the beta release of MVC in November — it was shown as a demo at the Microsoft Professional Developers Conference (PDC) in Los Angeles.
The Release to Manufacturing (RTM) edition of MVC, version 1 shipped at the Mix 09 conference in March 2009. We released the code on CodePlex with the MS-PL open source license. The license was quite short, and today is seen as similar to the MIT license (which is what Microsoft uses most of the time these days). The Open Source Initiative (OSI) approved the MS-PL license, but it was still controversial in some circles — why should Microsoft make its own license? What was hidden in it? Of course there wasn’t anything tricky in the MS-PL license, and it ultimately didn’t make sense to use it in the long run — MIT or Apache licenses served just as well. But internally at Microsoft, there were legal folks that were happier, not understanding the unfavorable optics of having a separate license for an organization.
Adding jQuery to Visual Studio 2010 did represent a new kind of risk as far as the legal team was concerned
Adding jQuery to Visual Studio 2010 did represent a new kind of risk as far as the legal team was concerned — what if there was code added to jQuery that had a GPL-type license included could impact the licensing of the rest of Visual Studio? Back then the fear around GPL’s “copy left” approach meant that legal folks saw it as “infectious.” Incorporating a GPL licensed piece of software into software with a traditional copyright (like .NET) would breach the copyright.
Today, it seems like these fears were overblown, but these were the legal folks that had dealt with situations like a lawsuit around some code that was accidentally included in Microsoft Word that caused the physical boxes of Word to be removed from store shelves everywhere in the world. That’s an incredibly expensive proposition — and in 2009, we were still shipping boxes of software.
An extensive procedure was put in place to mitigate the legal concerns around jQuery. Tools were built and used to test the pedigree of the source code of jQuery — tools would search through the code and check all the licensing. Only one time did we find a case where a contributor added some GPL licensed code — that the jQuery folks weren’t even aware of! jQuery is licensed for commercial use under the MIT license, and it made no sense to have GPL licensed code in it.
I got pulled into a conference call where I advocated strongly (some bad words were used) that we should not *ever* change the license of a third party open source library
Just before Visual Studio 2010 shipped, I got a call from one of the lawyers in the legal department — there was a legal opinion forming that any code, including jQuery, shipped in a Microsoft package, should be licensed with the MS-PL license. I got pulled into a conference call where I advocated strongly (some bad words were used) that we should not *ever* change the license of a third party open source library. It didn’t matter that MIT and MS-PL were remarkably similar — it was simply rude to change a license like that. It provided no meaningful benefit, and did significant harm to our reputation as supporters of open source.
Eventually our legal team embraced this open source journey and when Studio 2010 shipped, the bundled version of jQuery had its original MIT license associated. Visual Studio 2010 also included ASP.NET MVC Version 2, Silverlight 4 and a whole other host of great tools.
This release set the stage and became the role model project for how we do open source at Microsoft. When the ASP.NET team started planning a major new release that would be cross platform, it was only natural that we’d build it in the open in partnership with the community. Eventually that effort expanded to become .NET Core, and to our founding of the .NET Foundation to support open source collaboration on the .NET platform.
(To learn more about the history of the .NET Foundation, check out Beth Massi’s post Building an Open Source .NET Foundation).
It’s fun to look back and see how we experimented with open source, learned some lessons, and kept building on what worked. If not for those efforts then, I don’t think we’d be where we are today.
For more information on .NET, see our website www.dot.net
Oddly enough, WPF 4 is the fourth major release of WPF. It’s odd because the first release had the version number 3.0! The first release in November 2006 was called WPF 3.0 because it shipped as part of the .NET Framework 3.0. The second release—WPF 3.5—came almost exactly a year later (one day shy, in fact). The third release, once again, came almost a year later (in August 2008). This release was a part of Service Pack 1 (SP1) for .NET 3.5, but this was no ordinary service pack as far as WPF was concerned—it contained many new features and improvements.
In addition to these major releases, Microsoft introduced a “WPF Toolkit” in August 2008 at http://wpf.codeplex.com that, along with miscellaneous tools and samples, gets updated several times a year. The WPF Toolkit has been used as a way to ship features more quickly and in an experimental form (often with full source code). Features introduced in the WPF Toolkit often “graduate” to get included in a future release of WPF, based on customer feedback about their desirability and readiness.
When the first version of WPF was released, tool support was almost nonexistent. The following months brought primitive WPF extensions for Visual Studio 2005 and the first public preview release of Expression Blend. Now, Visual Studio 2010 not only has first-class support for WPF development but has been substantially rewritten to be a WPF application itself! Expression Blend, an application built 100% with WPF, has also gained a lot of functionality for designing and prototyping great user interfaces. And in the past several years, numerous WPF-based applications have been released from companies such as Autodesk, SAP, Disney, Blockbuster, Roxio, AMD, Hewlett Packard, Lenovo, and many more. Microsoft itself, of course, has a long list of software built with WPF (Visual Studio, Expression, Test and Lab Manager, Deep Zoom Composer, Songsmith, Surface, Semblio, Robotics Studio, LifeCam, Amalga, Games for Windows LIVE Marketplace, Office Communicator Attendant, Active Directory Administrative Center, Dynamics NAV, Pivot, PowerShell ISE, and many more).
Let’s take a closer look at how WPF has changed over time.Enhancements in WPF 3.5 and WPF 3.5 SP1
The following notable changes were made to WPF in versions 3.5 and 3.5 SP1:
Interactive 3D—The worlds of 2D and 3D were woven together even more seamlessly with the UIElement3D base class, which gives 3D elements input, focus, and events; the odd-sounding Viewport2DVisual3D class, which can place any interactive 2D controls inside a 3D scene; and more. See Chapter 16, “3D Graphics.”
First-class interoperability with DirectX—Previously, WPF applications could only interoperate with DirectX via the lowest common denominator of Win32. Now, WPF has functionality for interacting directly with Direct3D surfaces with the D3DImage class rather than being forced to interact with its host HWND. One benefit from this is the ability to place WPF content on top of DirectX content and vice versa. See Chapter 19.
Better data binding—WPF gained support for XLINQ binding, better validation and debugging, and output string formatting in XAML that reduces the need for custom procedural code. See Chapter 13, “Data Binding.”
Better special effects—The first version of WPF shipped with a handful of bitmap effects (blur, drop shadow, outer glow, emboss, and bevel) but with a warning to not use them because their performance was so poor! This has changed, with a new set of hardware-accelerated effects and a whole new architecture that allows you to plug in your own custom hardware-accelerated effects via pixel shaders. See Chapter 15, “2D Graphics.”
High-performance custom drawing—WPF didn’t previously have a good answer for custom drawings that involve thousands of points or shapes, as even the lowest-level drawing primitives have too much overhead to make such things perform well. The WriteableBitmap class was enhanced so you can now specify dirty regions when drawing on it rather than getting a whole new bitmap every frame! Because WriteableBitmap only lets you set pixels, it is a very primitive form of “drawing,” however.
Text improvements—There’s now better performance, better international support (improved input method editor [IME] support and improved Indic script support), and enhancements to TextBox and RichTextBox. See Chapter 11, “Images, Text, and Other Controls.”
Enhancements to partial-trust applications—More functionality became available in the partial-trust sandbox for .NET applications, such as the ability to use Windows Communication Foundation (WCF) for web service calls (via basicHttpBinding) and the ability to read and write HTTP cookies. Also, support for XAML Browser Applications (XBAPs)—the primary mechanism for running partial-trust WPF applications—was extended to the Firefox web browser instead of just Internet Explorer (In WPF, however, the add-on that enables this is no longer installed by default.)
Improved deployment for applications and the .NET Framework—This arrived in many forms: a smaller and faster .NET Framework installation process thanks to the beginnings of a .NET Framework “client profile” that excludes server-only .NET pieces such as ASP.NET; a new “bootstrapper” component that handles all .NET Framework dependencies, installations, and upgrades for you as well as enabling setups with custom branding; and a variety of new ClickOnce features.
Improved performance—WPF and the underlying common language runtime implemented several changes that significantly boosted the performance of WPF applications without any code changes needed. For example, the load time (especially first-time load) has been dramatically improved, animations (especially slow ones) are much smoother, data binding is faster in a number of scenarios, and layered windows (described in Chapter 8) are now hardware accelerated. Other performance improvements were made that you must opt into due to compatibility constraints, such as improved virtualization and deferred scrolling in items controls, described in Chapter 10, “Items Controls.”
WPF 4 brings the following changes, on top of the changes from previous versions:
Multi-touch support—When running on computers that support multi-touch and run Windows 7 or later, WPF elements can get a variety of input events, from low-level data, to easy-to-consume manipulations (such as rotation and scaling), to high-level—including custom—gestures. The built-in WPF controls have also been updated to be multi-touch aware. The WPF team leveraged the work previously done by the Microsoft Surface team (whose software is built on WPF). As a result, multi-touch in WPF 4 is compatible with version 2 of the Surface SDK, which is great news for anyone considering developing for both Windows and Surface. See Chapter 6, “Input Events: Keyboard, Mouse, Stylus, and Multi-Touch.”
First-class support for other Windows 7 features—Multi-touch is a cool new feature of Windows 7, but there are plenty of others that don’t require special hardware—so many more users will appreciate their inclusion. WPF provides the best way to integrate with new taskbar features such as Jump Lists and icon overlays, integrate with the latest common dialogs, and more. See Chapter 8.
New controls—WPF 4 includes controls such as DataGrid, Calendar, and DatePicker, which originally debuted in the WPF Toolkit. See Chapter 11.
Easing animation functions—Eleven new animation classes such as BounceEase, ElasticEase, and SineEase enable sophisticated animations with custom rates of acceleration and deceleration to be performed completely declaratively. These “easing functions” and their infrastructure were first introduced in Silverlight 3 before being adopted by WPF 4.
Enhanced styling with Visual State Manager—The Visual State Manager, originally introduced in Silverlight 2, provides a new way to organize visuals and their interactivity into “visual states” and “state transitions.” This feature makes it easier for designers to work with controls in tools such as Expression Blend, but importantly also makes it easier to share templates between WPF and Silverlight.
Improved layout on pixel boundaries—WPF straddles the line between being automatically DPI independent (which requires ignoring physical pixel boundaries) and having visual elements that look crisp (which, especially for small elements, requires being aligned on pixel boundaries). From the beginning, WPF has supported a property called SnapsToDevicePixels that forces “pixel snapping” on elements. But using SnapsToDevicePixels can be complex and doesn’t help in some scenarios. Silverlight went back to the drawing board and created a property called UseLayoutRounding that works more naturally. WPF 4 now has this property. Just set it to true on a root element, and the positions of that element plus all of children will be rounded up or down to lie on pixel boundaries. The result is user interfaces that can scale and can easily be crisp!
Non-blurry text—WPF’s emphasis on DPI independence and a scalable user interface has been an issue for small text—the kind of text that occurs a lot in traditional user interfaces on 96-DPI screens. This has frustrated numerous users and developers. In fact, I’ve always claimed that I can spot a user interface created with WPF simply by looking at the blurriness of its text. WPF 4 has finally addressed this with an alternative way to render text that can make it look as crisp as GDI-based text yet with almost all the benefits that WPF brings. Visual Studio 2010, for example, uses this rendering mode for its text documents. Because there are some limitations to the new rendering approach, you must opt into it. See Chapter 11.
More deployment improvements—The .NET Framework client profile can run side-by-side with the full .NET Framework, and it can be used in just about every scenario relevant for WPF applications. In fact, .NET 4.0 projects in Visual Studio 2010 target the smaller client profile by default.
More performance improvements—In order to make vector graphics perform as well as possible, WPF can cache rendered results as bitmaps and reuse them. For advanced scenarios, you can control this behavior with the new CacheMode property. See Chapter 15. The heavy usage of WPF in Visual Studio 2010 drove a lot of miscellaneous performance improvements into WPF 4 across the board, but all WPF applications get to enjoy these improvements.
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