Search Results

Search found 57229 results on 2290 pages for 'asp net mvc areas'.

Page 704/2290 | < Previous Page | 700 701 702 703 704 705 706 707 708 709 710 711  | Next Page >

• Smartassembly 5: it lives! Early Access builds now available

  - by Bart Read

  I'm pleased to announce that, late last week, we put out the first early access build for Smartassembly 5, Red Gate's fantastic code protection and error reporting tool, which we acquired last September. You can download it via: http://www.red-gate.com/messageboard/viewforum.php?f=116 It's obviously pretty early days, so please do not try to use this to protect a production application, but we've already done a lot of work in some key areas: We're simplifying and streamlining the licensing model (you won't see this yet, but a lot of the work on this has already been done). We've improved usability of the product, with a better menu, reordering of project settings, and better defaults. We've also fixed a load of bugs, which I'll let Alex blog about in more detail. On a slightly more trivial level, the curly braces are also no more. Over the coming weeks, we'll be adding more improvements, and starting usability tests. If you're interested in getting involved in the latter, please drop an email to [email protected].

  Read the article

• Internet Explorer 8 developer tools debugging on Windows XP

  - by Suresh Behera

  Although , Microsoft officially not going support Windows XP  but still many healthcare companies preferred to use windows XP internally. They buy windows 7 laptop and convert to Windows XP.This sounds funny but it true. I was trying to use IE’s Developer tools(F12) to debug one of JavaScript issue found that “jscript.dll” has to be registered explicitly    to your machine. even if i have IE8 and javsascript enabled on browser it was not stopping on breakpoint. Solution : register...(read more)

  Read the article

• [Silverlight] How to choose the webcam resolution

  - by Benjamin Roux

  Hello, Today I’m gonna show you how to choose the webcam resolution when using Silverlight. By default most of them are in 640x480 which can be sometimes insufficient. VideoCaptureDevice source = devices.SelectedItem as VideoCaptureDevice; source.DesiredFormat = new VideoFormat(PixelFormatType.Unknown, 4096, 4096, 30); The magic thing with this line, is that the camera will choose the best resolution available (and not absolutely 4096x4096). You can also get all the supported formats using the SupportedFormats property. Hope this help.

  Read the article

• NHibernate Pitfalls: Lazy Scalar Properties Must Be Auto

  - by Ricardo Peres

  This is part of a series of posts about NHibernate Pitfalls. See the entire collection here. NHibernate supports lazy properties not just for associations (many to one, one to one, one to many, many to many) but also for scalar properties. This allows, for example, only loading a potentially large BLOB or CLOB from the database if and when it is necessary, that is, when the property is actually accessed. In order for this to work, other than having to be declared virtual, the property can’t have an explicitly declared backing field, it must be an auto property: 1: public virtual String MyLongTextProperty 2: { 3: get; 4: set; 5: } 6:  7: public virtual Byte [] MyLongPictureProperty 8: { 9: get; 10: set; 11: } All lazy scalar properties are retrieved at the same time, when one of them is accessed.

  Read the article

• Static GitHub powered blog engine

  - by Daniel Cazzulino

  Blog engines were the new &quot;cool thing to write&quot; after the fever of writing a new DI framework was over. It was kinda like the new &quot;hello world++&quot; example. Almost every single engine uses a database of some sort to keep posts and comments. Almost every one is not leveraging the web as a consequence ;) I was intrigued by the possibilities that a flexible and general-purpose hosting solution like Github could offer for a static blog engine: basically keeping plain markdown/HTML/razor/WLW/whatever files that through a publish/build time process generate static files that pass for a &quot;blog engine&quot;. GitHub even supports custom domain names, so why not? Such an &quot;engine&quot; would have a number of benefits: Plain CSS styling Arbitrary JavaScript Leverage the web infrastructure (caching, CDNs, etc.) ...Read full article

  Read the article

• Checking if an Unloaded Collection Contains Elements

  - by Ricardo Peres

  If you want to know if an unloaded collection in an entity contains elements, or count them, without actually loading them, you need to use a custom query; that is because the Count property (if the collection is not mapped with lazy=”extra”) and the LINQ Count() and Any() methods force the whole collection to be loaded. You can use something like these two methods, one for checking if there are any values, the other for actually counting them: 1: public static Boolean Exists(this ISession session, IEnumerable collection) 2: { 3: if (collection is IPersistentCollection) 4: { 5: IPersistentCollection col = collection as IPersistentCollection; 6:  7: if (col.WasInitialized == false) 8: { 9: String[] roleParts = col.Role.Split('.'); 10: String ownerTypeName = String.Join(".", roleParts, 0, roleParts.Length - 1); 11: String ownerCollectionName = roleParts.Last(); 12: String hql = "select 1 from " + ownerTypeName + " it where it.id = :id and exists elements(it." + ownerCollectionName + ")"; 13: Boolean exists = session.CreateQuery(hql).SetParameter("id", col.Key).List().Count == 1; 14:  15: return (exists); 16: } 17: } 18:  19: return ((collection as IEnumerable).OfType<Object>().Any()); 20: } 21:  22: public static Int64 Count(this ISession session, IEnumerable collection) 23: { 24: if (collection is IPersistentCollection) 25: { 26: IPersistentCollection col = collection as IPersistentCollection; 27:  28: if (col.WasInitialized == false) 29: { 30: String[] roleParts = col.Role.Split('.'); 31: String ownerTypeName = String.Join(".", roleParts, 0, roleParts.Length - 1); 32: String ownerCollectionName = roleParts.Last(); 33: String hql = "select count(elements(it." + ownerCollectionName + ")) from " + ownerTypeName + " it where it.id = :id"; 34: Int64 count = session.CreateQuery(hql).SetParameter("id", col.Key).UniqueResult<Int64>(); 35:  36: return (count); 37: } 38: } 39:  40: return ((collection as IEnumerable).OfType<Object>().Count()); 41: } Here’s how: 1: MyEntity entity = session.Load(100); 2:  3: if (session.Exists(entity.SomeCollection)) 4: { 5: Int32 count = session.Count(entity.SomeCollection); 6: //... 7: }

  Read the article

• Monitoring settings in a configsection of your app.config for changes

  - by dotjosh

  The usage:public static void Main() { using(var configSectionAdapter = new ConfigurationSectionAdapter<ACISSInstanceConfigSection>("MyConfigSectionName")) { configSectionAdapter.ConfigSectionChanged += () => { Console.WriteLine("File has changed! New setting is " + configSectionAdapter.ConfigSection.MyConfigSetting); }; Console.WriteLine("The initial setting is " + configSectionAdapter.ConfigSection.MyConfigSetting); Console.ReadLine(); } }  The meat: public class ConfigurationSectionAdapter<T> : IDisposable where T : ConfigurationSection { private readonly string _configSectionName; private FileSystemWatcher _fileWatcher; public ConfigurationSectionAdapter(string configSectionName) { _configSectionName = configSectionName; StartFileWatcher(); } private void StartFileWatcher() { var configurationFileDirectory = new FileInfo(Configuration.FilePath).Directory; _fileWatcher = new FileSystemWatcher(configurationFileDirectory.FullName); _fileWatcher.Changed += FileWatcherOnChanged; _fileWatcher.EnableRaisingEvents = true; } private void FileWatcherOnChanged(object sender, FileSystemEventArgs args) { var changedFileIsConfigurationFile = string.Equals(args.FullPath, Configuration.FilePath, StringComparison.OrdinalIgnoreCase); if (!changedFileIsConfigurationFile) return; ClearCache(); OnConfigSectionChanged(); } private void ClearCache() { ConfigurationManager.RefreshSection(_configSectionName); } public T ConfigSection { get { return (T)Configuration.GetSection(_configSectionName); } } private System.Configuration.Configuration Configuration { get { return ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); } } public delegate void ConfigChangedHandler(); public event ConfigChangedHandler ConfigSectionChanged; protected void OnConfigSectionChanged() { if (ConfigSectionChanged != null) ConfigSectionChanged(); } public void Dispose() { _fileWatcher.Changed -= FileWatcherOnChanged; _fileWatcher.EnableRaisingEvents = false; _fileWatcher.Dispose(); } }

  Read the article

• COM INTEROP Support - which is better? C# or VB

  - by dot

  I keep hearing that c# is "better" than vb... but as far as I can see, aside from syntactical differences, both compile down to the same IL. I've found some good articles by googling that explain what the differences are between the two and so I feel comfortable in "diffusing" conversations between developers arguing over vb / c#. =) But I did read an article that said vb.net 2005 had better support for com interop stuff. But i'm wondering if this is still the case? This is of interest to me because we are in the middle of redesigning an old vb6 app that communicates with some older COM components. Does anyone have recent experience with .NET and COM interop? Thanks.

  Read the article

• PHP and performance

  - by Naif

  I always hear that PHP is for medium and small websites whereas .NET and Java for enterprise applications. My question is about PHP. Why is PHP not a good option for enterprise web applications? Is it because if the web application becomes bigger then PHP will be slower as it is an interpreted language? I know that corporate world will choose .NET or J2EE because of the integration with their products and because of back end services, etc. However, if we just have PHP for building sites and web applications then how can we use it to perform well with big sites? In short, Is there a relationship between the performance of PHP and the size of the website? What are the factors that make PHP not appropriate option for big sites?

  Read the article

• NHibernate Tools: Visual NHibernate

  - by Ricardo Peres

  You probably know that I’m a big fan of Slyce Software’s Visual NHibernate. To me, it is the best tool for generating your entities and mappings from an existing database (it also allows you to go the other way, but I honestly have never used it that way). What I like most about it: Great support: folks at Slyce always listen to your suggestions, give you feedback in a timely manner, and I was even lucky enough to have some of my suggestions implemented! The templating engine, which is very powerful, and more user-friendly than, for example, MyGeneration’s; one of the included templates is Sharp Architecture; Advanced model validations: it even warns you about having lazy properties declared in non-lazy entities; Integration with NHibernate Validator and generation of validation rules automatically based on the database, or on user-defined model settings; The designer: they opted for not displaying all entities in a single screen, which I think was a good decision; has support for all inheritance strategies (table per class hierarchy, table per class, table per concrete class); Generation of FluentNHibernate mappings as well as hbm.xml. I could name others, but… why don’t you see for yourself? There is a demo version available for downloading. By the way, I am in no way related to Slyce, I just happen to like their software!

  Read the article

• SO-Aware Service Explorer – Configure and Export your services from VS 2010 into the repository

  - by cibrax

  We have introduced a new Visual Studio tool called “Service Explorer” as part of the new SO-Aware SDK version 1.3 to help developers to configure and export any regular WCF service into the SO-Aware service repository. This new tool is a regular Visual Studio Tool Window that can be opened from “View –> Other Windows –> Services Explorer”. Once you open the Services Explorer, you will able to see all the available WCF services in the Visual Studio Solution. In the image above, you can see that a “HelloWorld” service was found in the solution and listed under the Tool window on the left. There are two things you can do for a new service in tool, you can either export it to SO-Aware repository or associate it to an existing service version in the repository. Exporting the service to SO-Aware means that you want to create a new service version in the repository and associate the WCF service WSDL to that version. Associating the service means that you want to use a version already created in SO-Aware with the only purpose of managing and centralizing the service configuration in SO-Aware. The option for exporting a service will popup a dialog like the one bellow in which you can enter some basic information about the service version you want to create and the repository location. The option for associating a service will popup a dialog in which you can pick any existing service version repository and the application configuration file that you want to keep in sync for the service configuration. Two options are available for configuring a service, WCF Configuration or SO-Aware. The WCF Configuration option just tells the tool that the service will use the standard WCF configuration section “system.serviceModel” but that section must be updated and kept in sync with the configuration selected for the service in the repository. The SO-Aware configuration option will tell the tool that the service configuration will be resolved at runtime from the repository. For example, selecting SO-Aware will generate the following configuration in the selected application configuration file, <configuration> <configSections> <section name="serviceRepository" type="Tellago.ServiceModel.Governance.ServiceConfiguration.ServiceRepositoryConfigurationSection, Tellago.ServiceModel.Governance.ServiceConfiguration" /> </configSections> <serviceRepository url="http://localhost/soaware/servicerepository.svc"> <services> <service name="ref:HelloWorldService(1.0)@dev" type="SOAwareSampleService.HelloWorldService" /> </services> </serviceRepository> </configuration> As you can see the tool represents a great addition to the toolset that any developer can use to manage and centralize configuration for WCF services. In addition, it can be combined with other useful tools like WSCF.Blue (Web Service Contract First) for generating the service artifacts like schemas, service code or the service WSDL itself.

  Read the article

• Electronics 101 for kids: littleBits review

  - by Daniel Cazzulino

  I'm always on the lookout for cool toys that can empower my kids (9, 6 and 2yo) to be creative and break the mold of being just consumers of other's ideas. I recently came across littleBits while watching a TED video of their creator. I was immediately hooked. It seemed like the perfect blend of simplicity and self-learning that I was looking to get my kids into electronics. So I went ahead and purchased the kit from SparkFun and a bunch of standalone parts (&quot;bits&quot;) from the site itself. There are also a bunch of videos and pictures on their site to get a better idea of what they are, as well as multitude YouTube videos. This weekend I gave them to my kids, and coincidentally, we also travelled to my hometown and they got to share them too with their cousins. Man, what a blast it was! I decided to approach this &quot;toy&quot; just like one of the iPod/iPad games I buy for them: &quot;How it's used? I've no idea! I just heard it was great, you go figure it out!&quot;. And figure it out they did....Read full article

  Read the article

• How to install Visual Studio 2010 Search References and Pro Power Tools side by side

  - by Daniel Cazzulino

  The new Visual Studio 2010 Pro Power Tools bring a new Add Reference dialog that completely replaces the classic one when you click the familiar Add Reference command: It seems like a nice dialog that is more aligned with the new Add New dialog and the Extension Manager one. But for this particular case, I believe it's awfully overkill (what's the use of that right sidebar? what's the use for the categories of assemblies split between Framework and Extensions?). The (also new) Search References extension which I blogged about earlier, gives you the familiar classic dialog enhanced with the must-have Search capability:...Read full article

  Read the article

• Advanced Record-Level Business Intelligence with Inner Queries

  - by gt0084e1

  While business intelligence is generally applied at an aggregate level to large data sets, it's often useful to provide a more streamlined insight into an individual records or to be able to sort and rank them. For instance, a salesperson looking at a specific customer could benefit from basic stats on that account. A marketer trying to define an ideal customer could pull the top entries and look for insights or patterns. Inner queries let you do sophisticated analysis without the overhead of traditional BI or OLAP technologies like Analysis Services. Example - Order History Constancy Let's assume that management has realized that the best thing for our business is to have customers ordering every month. We'll need to identify and rank customers based on how consistently they buy and when their last purchase was so sales & marketing can respond accordingly. Our current application may not be able to provide this and adding an OLAP server like SSAS may be overkill for our needs. Luckily, SQL Server provides the ability to do relatively sophisticated analytics via inner queries. Here's the kind of output we'd like to see. Creating the Queries Before you create a view, you need to create the SQL query that does the calculations. Here we are calculating the total number of orders as well as the number of months since the last order. These fields might be very useful to sort by but may not be available in the app. This approach provides a very streamlined and high performance method of delivering actionable information without radically changing the application. It's also works very well with self-service reporting tools like Izenda. SELECT CustomerID,CompanyName, ( SELECT COUNT(OrderID) FROM Orders WHERE Orders.CustomerID = Customers.CustomerID ) As Orders, DATEDIFF(mm, ( SELECT Max(OrderDate) FROM Orders WHERE Orders.CustomerID = Customers.CustomerID) ,getdate() ) AS MonthsSinceLastOrder FROM Customers Creating Views To turn this or any query into a view, just put CREATE VIEW AS before it. If you want to change it use the statement ALTER VIEW AS. Creating Computed Columns If you'd prefer not to create a view, inner queries can also be applied by using computed columns. Place you SQL in the (Formula) field of the Computed Column Specification or check out this article here. Advanced Scoring and Ranking One of the best uses for this approach is to score leads based on multiple fields. For instance, you may be in a business where customers that don't order every month require more persistent follow up. You could devise a simple formula that shows the continuity of an account. If they ordered every month since their first order, they would be at 100 indicating that they have been ordering 100% of the time. Here's the query that would calculate that. It uses a few SQL tricks to make this happen. We are extracting the count of unique months and then dividing by the months since initial order. This query will give you the following information which can be used to help sales and marketing now where to focus. You could sort by this percentage to know where to start calling or to find patterns describing your best customers. Number of orders First Order Date Last Order Date Percentage of months order was placed since last order. SELECT CustomerID, (SELECT COUNT(OrderID) FROM Orders WHERE Orders.CustomerID = Customers.CustomerID) As Orders, (SELECT Max(OrderDate) FROM Orders WHERE Orders.CustomerID = Customers.CustomerID) AS LastOrder, (SELECT Min(OrderDate) FROM Orders WHERE Orders.CustomerID = Customers.CustomerID) AS FirstOrder, DATEDIFF(mm,(SELECT Min(OrderDate) FROM Orders WHERE Orders.CustomerID = Customers.CustomerID),getdate()) AS MonthsSinceFirstOrder, 100*(SELECT COUNT(DISTINCT 100*DATEPART(yy,OrderDate) + DATEPART(mm,OrderDate)) FROM Orders WHERE Orders.CustomerID = Customers.CustomerID) / DATEDIFF(mm,(SELECT Min(OrderDate) FROM Orders WHERE Orders.CustomerID = Customers.CustomerID),getdate()) As OrderPercent FROM Customers

  Read the article

• Passing a parameter so that it cannot be changed – C#

  - by nmarun

  I read this requirement of not allowing a user to change the value of a property passed as a parameter to a method. In C++, as far as I could recall (it’s been over 10 yrs, so I had to refresh memory), you can pass ‘const’ to a function parameter and this ensures that the parameter cannot be changed inside the scope of the function. There’s no such direct way of doing this in C#, but that does not mean it cannot be done!! Ok, so this ‘not-so-direct’ technique depends on the type of the parameter – a simple property or a collection. Parameter as a simple property: This is quite easy (and you might have guessed it already). Bulent Ozkir clearly explains how this can be done here. Parameter as a collection property: Obviously the above does not work if the parameter is a collection of some type. Let’s dig-in. Suppose I need to create a collection of type KeyTitle as defined below. 1: public class KeyTitle 2: { 3: public int Key { get; set; } 4: public string Title { get; set; } 5: } My class is declared as below: 1: public class Class1 2: { 3: public Class1() 4: { 5: MyKeyTitleList = new List<KeyTitle>(); 6: } 7: 8: public List<KeyTitle> MyKeyTitleList { get; set; } 9: public ReadOnlyCollection<KeyTitle> ReadonlyKeyTitleCollection 10: { 11: // .AsReadOnly creates a ReadOnlyCollection<> type 12: get { return MyKeyTitleList.AsReadOnly(); } 13: } 14: } See the .AsReadOnly() method used in the second property? As MSDN says it: “Returns a read-only IList<T> wrapper for the current collection.” Knowing this, I can implement my code as: 1: public static void Main() 2: { 3: Class1 class1 = new Class1(); 4: class1.MyKeyTitleList.Add(new KeyTitle { Key = 1, Title = "abc" }); 5: class1.MyKeyTitleList.Add(new KeyTitle { Key = 2, Title = "def" }); 6: class1.MyKeyTitleList.Add(new KeyTitle { Key = 3, Title = "ghi" }); 7: class1.MyKeyTitleList.Add(new KeyTitle { Key = 4, Title = "jkl" }); 8:  9: TryToModifyCollection(class1.MyKeyTitleList.AsReadOnly()); 10:  11: Console.ReadLine(); 12: } 13:  14: private static void TryToModifyCollection(ReadOnlyCollection<KeyTitle> readOnlyCollection) 15: { 16: // can only read 17: for (int i = 0; i < readOnlyCollection.Count; i++) 18: { 19: Console.WriteLine("{0} - {1}", readOnlyCollection[i].Key, readOnlyCollection[i].Title); 20: } 21: // Add() - not allowed 22: // even the indexer does not have a setter 23: } The output is as expected: The below image shows two things. In the first line, I’ve tried to access an element in my read-only collection through an indexer. It shows that the ReadOnlyCollection<> does not have a setter on the indexer. The second line tells that there’s no ‘Add()’ method for this type of collection. The capture below shows there’s no ‘Remove()’ method either, there-by eliminating all ways of modifying a collection. Mission accomplished… right? Now, even if you have a collection of different type, all you need to do is to somehow cast (used loosely) it to a List<> and then do a .AsReadOnly() to get a ReadOnlyCollection of your custom collection type. As an example, if you have an IDictionary<int, string>, you can create a List<T> of this type with a wrapper class (KeyTitle in our case). 1: public IDictionary<int, string> MyDictionary { get; set; } 2:  3: public ReadOnlyCollection<KeyTitle> ReadonlyDictionary 4: { 5: get 6: { 7: return (from item in MyDictionary 8: select new KeyTitle 9: { 10: Key = item.Key, 11: Title = item.Value, 12: }).ToList().AsReadOnly(); 13: } 14: } Cool huh? Just one thing you need to know about the .AsReadOnly() method is that the only way to modify your ReadOnlyCollection<> is to modify the original collection. So doing: 1: public static void Main() 2: { 3: Class1 class1 = new Class1(); 4: class1.MyKeyTitleList.Add(new KeyTitle { Key = 1, Title = "abc" }); 5: class1.MyKeyTitleList.Add(new KeyTitle { Key = 2, Title = "def" }); 6: class1.MyKeyTitleList.Add(new KeyTitle { Key = 3, Title = "ghi" }); 7: class1.MyKeyTitleList.Add(new KeyTitle { Key = 4, Title = "jkl" }); 8: TryToModifyCollection(class1.MyKeyTitleList.AsReadOnly()); 9:  10: Console.WriteLine(); 11:  12: class1.MyKeyTitleList.Add(new KeyTitle { Key = 5, Title = "mno" }); 13: class1.MyKeyTitleList[2] = new KeyTitle{Key = 3, Title = "GHI"}; 14: TryToModifyCollection(class1.MyKeyTitleList.AsReadOnly()); 15:  16: Console.ReadLine(); 17: } Gives me the output of: See that the second element’s Title is changed to upper-case and the fifth element also gets displayed even though we’re still looping through the same ReadOnlyCollection<KeyTitle>. Verdict: Now you know of a way to implement ‘Method(const param1)’ in your code!

  Read the article

• NHibernate Pitfalls Index

  - by Ricardo Peres

  These are the posts on NHibernate pitfalls I’ve written so far. This post will be updated whenever there are more. The SaveOrUpdate Event Collection Restrictions Specifying Event Listeners in XML Configuration Many to Many and Inverse Bags and Join Lazy Properties in Non-Lazy Entities Adding to a Bag Causes Loading Flushing Changes Private Setter on Id Property

  Read the article

• What constitutes proper use of threads in programming?

  - by Smith

  I am tired of hearing people recommend that you should use only one thread per process, while many programs use up to 100 per process! take for example some common programs vb.net ide uses about 25 thread when not debugging System uses about 100 chrome uses about 19 Avira uses more than about 50 Any time I post a thread related question, I am reminded almost every time that I should not use more that one thread per process, and all the programs I mention above are ruining on my system with a single processor. What constitutes proper use of threads in programming? Please make general comment, but I'd prefer .NET framework thanks EDIT changed processor to process

  Read the article

• Windows 7 SP1 now available

  - by guybarrette

  I installed the SP1 for Windows 7 yesterday on two machines.  Short story: nothing to report, everything went fine. Looks like this is a “real” service pack meaning that what it does is install all the fixes and updates released since the Windows 7 release.  It does introduce a few new features.  For a complete list, check the “Notable Changes...” document found here. var addthis_pub="guybarrette";

  Read the article

• High level overview of Visual Studio Extensibility APIs

  - by Daniel Cazzulino

  If your head is dizzy with the myriad VS services and APIs, from EnvDTE to Shell.Interop, this should clarify a couple things. First a bit of background: APIs on EnvDTE (DTE for short, since that’s the entry point service you request from the environment) was originally an API intended to be used by macros. It’s also called the automation API. Most of the time, this is a simplified API that is easier to work with, but which doesn’t expose 100% of what VS is capable of doing. It’s also kind of the “rookie” way of doing VS extensibility (VSX for short), since most hardcore VSX devs sooner or later realize that they need to make the leap to the “serious” APIs. The “real” VSX APIs virtually always start with IVs, make heavy use of uint, ref/out parameters and HResults. These are the APIs that have been evolving for years and years, and there is a lot of COM baggage. ...Read full article

  Read the article

• Silverlight 4 Training Course

  - by guybarrette

  A Silverlight 4 training course is now available on Channel 9.  Here’s the course description: The Silverlight 4 Training Course includes a whitepaper explaining all of the new Silverlight 4 RC features, several hands-on-labs that explain the features, and a 8 unit course for building business applications with Silverlight 4. The business applications course includes 8 modules with extensive hands on labs as well as 25 accompanying videos that walk you through key aspects of building a business application with Silverlight. Key aspects in this course are working with numerous sandboxed and elevated out of browser features, the new RichTextBox control, implicit styling, webcam, drag and drop, multi touch, validation, authentication, MEF, WCF RIA Services, right mouse click, and much more! You can download it here var addthis_pub="guybarrette";

  Read the article

• Anonymous Types are Internal, C# 4.0 Dynamic Beware!

  - by HeartattacK

  This article explains why C# 4.0's dynamic features don't seem to work when evaluating instances of anonymous types returned from a public method of a different assembly. Read more...  Note: Crossposted from www.heartysoft.com  

  Read the article

• Developing and Deploying with SQL Azure

  - by guybarrette

  Microsoft published a short SQL Azure deployment document: This document provides guidelines on how to deploy an existing on-premise SQL Server database into SQL Azure. It also discusses best practices related to data migration. Download it here var addthis_pub="guybarrette";

  Read the article

• Adeus ano bom – bem vindo, melhor ainda.

  - by anobre

  Olá pessoal! Este ano de 2010 foi realmente muito bom. A NBR cresceu consideravelmente, eu tive algumas mudanças no meu trabalho, me casei, comprei um apartamento e tudo mais. Definitivamente, este ano ficará marcado para sempre. Fiz diversos amigos, dentro da comunidade Microsoft também. O melhor ainda é que as perspectivas para 2011 são ainda mais positivas. E pelo que estou vendo, este sentimento é comum a muitos amigos por aí, o que me deixa mais feliz ainda. Sem mais, desejo a todos um feliz ano de 2011, que muitos objetivos e conquistas sejam alcançados. Indepentende de tecnologias, linguagens ou religiões, que cada um faça o seu melhor, para garantir o melhor a sua volta. Espero que todos sigam duas palavras: MUDANÇAS e EMPREENDEDORISMO. Um forte abraço a todos e até ano que vem!

  Read the article

• Workarounds for supporting MVVM in the Silverlight ContextMenu service

  - by cibrax

  As I discussed in my last post, some of the Silverlight controls does not support MVVM quite well out of the box without specific customizations. The Context Menu is another control that requires customizations for enabling data binding on the menu options. There are a few things that you might want to expose as view model for a menu item, such as the Text, the associated icon or the command that needs to be executed. That view model should look like this, public class MenuItemModel { public string Name { get; set; } public ICommand Command { get; set; } public Image Icon { get; set; } public object CommandParameter { get; set; } } This is how you can modify the built-in control to support data binding on the model above, public class CustomContextMenu : ContextMenu { protected override DependencyObject GetContainerForItemOverride() { CustomMenuItem item = new CustomMenuItem(); Binding commandBinding = new Binding("Command"); item.SetBinding(CustomMenuItem.CommandProperty, commandBinding);   Binding commandParameter = new Binding("CommandParameter"); item.SetBinding(CustomMenuItem.CommandParameterProperty, commandParameter);   return item; } }   public class CustomMenuItem : MenuItem { protected override DependencyObject GetContainerForItemOverride() { CustomMenuItem item = new CustomMenuItem();   Binding commandBinding = new Binding("Command"); item.SetBinding(CustomMenuItem.CommandProperty, commandBinding);   return item; } } The change is very similar to the one I made in the TreeView for manually data binding some of the Menu item properties to the model. Once you applied that change in the control, you can define it in your XAML like this. <toolkit:ContextMenuService.ContextMenu> <e:CustomContextMenu ItemsSource="{Binding MenuItems}"> <e:CustomContextMenu.ItemTemplate> <DataTemplate> <StackPanel Orientation="Horizontal" > <ContentPresenter Margin="0 0 4 0" Content="{Binding Icon}" /> <TextBlock Margin="0" Text="{Binding Name, Mode=OneWay}" FontSize="12"/> </StackPanel> </DataTemplate> </e:CustomContextMenu.ItemTemplate> </e:CustomContextMenu> </toolkit:ContextMenuService.ContextMenu> The property MenuItems associated to the “ItemsSource” in the parent model just returns a list of supported options (menu items) in the context menu. this.menuItems = new MenuItemModel[] { new MenuItemModel { Name = "My Command", Command = new RelayCommand(OnCommandClick), Icon = ImageLoader.GetIcon("command.png") } }; The only problem I found so far with this approach is that the context menu service does not support a HierarchicalDataTemplate in case you want to have an hierarchy in the context menu (MenuItem –> Sub menu items), but I guess we can live without that.

  Read the article

• NHibernate Pitfalls: Custom Types and Detecting Changes

  - by Ricardo Peres

  This is part of a series of posts about NHibernate Pitfalls. See the entire collection here. NHibernate supports the declaration of properties of user-defined types, that is, not entities, collections or primitive types. These are used for mapping a database columns, of any type, into a different type, which may not even be an entity; think, for example, of a custom user type that converts a BLOB column into an Image. User types must implement interface NHibernate.UserTypes.IUserType. This interface specifies an Equals method that is used for comparing two instances of the user type. If this method returns false, the entity is marked as dirty, and, when the session is flushed, will trigger an UPDATE. So, in your custom user type, you must implement this carefully so that it is not mistakenly considered changed. For example, you can cache the original column value inside of it, and compare it with the one in the other instance. Let’s see an example implementation of a custom user type that converts a Byte[] from a BLOB column into an Image: 1: [Serializable] 2: public sealed class ImageUserType : IUserType 3: { 4: private Byte[] data = null; 5: 6: public ImageUserType() 7: { 8: this.ImageFormat = ImageFormat.Png; 9: } 10: 11: public ImageFormat ImageFormat 12: { 13: get; 14: set; 15: } 16: 17: public Boolean IsMutable 18: { 19: get 20: { 21: return (true); 22: } 23: } 24: 25: public Object Assemble(Object cached, Object owner) 26: { 27: return (cached); 28: } 29: 30: public Object DeepCopy(Object value) 31: { 32: return (value); 33: } 34: 35: public Object Disassemble(Object value) 36: { 37: return (value); 38: } 39: 40: public new Boolean Equals(Object x, Object y) 41: { 42: return (Object.Equals(x, y)); 43: } 44: 45: public Int32 GetHashCode(Object x) 46: { 47: return ((x != null) ? x.GetHashCode() : 0); 48: } 49: 50: public override Int32 GetHashCode() 51: { 52: return ((this.data != null) ? this.data.GetHashCode() : 0); 53: } 54: 55: public override Boolean Equals(Object obj) 56: { 57: ImageUserType other = obj as ImageUserType; 58: 59: if (other == null) 60: { 61: return (false); 62: } 63: 64: if (Object.ReferenceEquals(this, other) == true) 65: { 66: return (true); 67: } 68: 69: return (this.data.SequenceEqual(other.data)); 70: } 71: 72: public Object NullSafeGet(IDataReader rs, String[] names, Object owner) 73: { 74: Int32 index = rs.GetOrdinal(names[0]); 75: Byte[] data = rs.GetValue(index) as Byte[]; 76: 77: this.data = data as Byte[]; 78: 79: if (data == null) 80: { 81: return (null); 82: } 83: 84: using (MemoryStream stream = new MemoryStream(this.data ?? new Byte[0])) 85: { 86: return (Image.FromStream(stream)); 87: } 88: } 89: 90: public void NullSafeSet(IDbCommand cmd, Object value, Int32 index) 91: { 92: if (value != null) 93: { 94: Image data = value as Image; 95: 96: using (MemoryStream stream = new MemoryStream()) 97: { 98: data.Save(stream, this.ImageFormat); 99: value = stream.ToArray(); 100: } 101: } 102: 103: (cmd.Parameters[index] as DbParameter).Value = value ?? DBNull.Value; 104: } 105: 106: public Object Replace(Object original, Object target, Object owner) 107: { 108: return (original); 109: } 110: 111: public Type ReturnedType 112: { 113: get 114: { 115: return (typeof(Image)); 116: } 117: } 118: 119: public SqlType[] SqlTypes 120: { 121: get 122: { 123: return (new SqlType[] { new SqlType(DbType.Binary) }); 124: } 125: } 126: } In this case, we need to cache the original Byte[] data because it’s not easy to compare two Image instances, unless, of course, they are the same.

  Read the article

< Previous Page | 700 701 702 703 704 705 706 707 708 709 710 711  | Next Page >