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  • Getting Current Native Thread

    - by Ricardo Peres
    The native OS threads running in the current process are exposed through the Threads property of the Process class. Please note that this is not the same as a managed thread, these are the actual native threads running on the operating system. In order to get a pointer to the current executing thread, we must use P/Invoke. Here's how we do it: [DllImport("kernel32.dll")] public static extern UInt32 GetCurrentThreadId(); UInt32 id = GetCurrentThreadId(); ProcessThread thread = Process.GetCurrentProcess().Threads.Cast().Where(t = t.Id == id).Single(); SyntaxHighlighter.config.clipboardSwf = 'http://alexgorbatchev.com/pub/sh/2.0.320/scripts/clipboard.swf'; SyntaxHighlighter.brushes.CSharp.aliases = ['c#', 'c-sharp', 'csharp']; SyntaxHighlighter.all();

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  • Extending web server controls by providing client side functionality through Javascript

    - by nikolaosk
    In this post I will demonstrate how to extend the functionality of the web server controls by adding client side functionality with Javascript. Let's move on to our example. 1) Launch Visual Studio 2010/2008/2005. (express editions will work fine). Create a new empty website and choose a suitable name for it. 2) Add a new item in your site, a web form. Leave the default name. 3) We need to add some markup. < form id = "form1" runat = "server" > < div > < span id = "test1" > nikos...(read more)

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  • What programming language and framework has best support for agile web development?

    - by Jonas
    If I would like to quickly set up a modern website, what programming language + framework has best support for this? E.g. short and easy to understand code for a beginner and a framework with support for modern features. Disregard my current knowledge, I'm more interested in the capacity of web programming languages and frameworks. Some requirements: RESTful URIs: http://example.com/category/id/page-title similar to the urls here on Programmers. ORM. A framework that has good database support and provide ORM or maybe a NoSQL-database. Good support for RESTful WebServices. Good support for testing and unit testing, to make sure the site is working as planned. Preferably a site that is ready to scale with an increasing number of users.

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  • Google Font API & Google Font Directory

    - by joelvarty
    There is a CSS element out there that looks like this: @font-face {   font-family: '';   src: url('…'); } I’ve only used this tag in a bunch of old apps and sites that were built exclusively for IE back in the day.  Well, it’s part of CSS 3 and Google is going to make it easy to find and share fonts. http://googlecode.blogspot.com/2010/05/introducing-google-font-api-google-font.html   more later - joel

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  • Nova Software Becomes Kentico Certified Partner

    - by chanva
    Nova Software was awarded Kentico Certified Partner status. The new status confirms that Nova Software is qualified to provide professional services using the Kentico CMS. Nova Software has earned a reputation for excellence thanks to our in-depth technology knowledge and business acumen. By consistently applying this expertise to customers' individual business needs, Nova Software helps provide a sustainable competitive advantage based upon unique industry knowledge and relationships. Nova Software chose Kentico CMS as the platform for their clients' websites for its robust feature set, affordable licensing and solid core structure. As a custom software developer, Nova Software is drawn to the Kentico CMS both for its developer-centric environment as well as for its user-friendly CMS Desktop that will enhance the user experience of its clients. While commenting on the potentiality of this major collaboration with Kentico Software, Our customers come to us for high-quality websites that can offer the most up-to-date features. By using Kentico CMS, we feel confident that we will be able to cover all the needs of our customers, deliver the project on time and provide them services at a very affordable price.Partner Manager at Kentico, Lenka Navratilova, says the partnership with Nova Software is important to her company, "Choosing the right platform for a web project is only a part of its way to success. The skills and expertise of the company that delivers it makes the rest. With our partnership with Nova Software, we are sure that the end users of our product will be provided with top-level professional services." Kentico is currently used in 84 countries by more than 6,000 websites including some of the world's biggest corporations such as McDonalds, Mazda and Vodafone, This is an exciting development for large businesses and organisations as it will enable the building and management of any sized website, from simple 'brochure' sites to comprehensive, data hungry sites in a robust and technically superior platform. Kentico is modular so clients can start with a basic site and later add functions such as blogs, newsletters and e-commerce. Technical knowledge is not needed in order to update a Kentico website. If clients can use Microsoft Word, they can easily edit their site.

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  • A WPF Image/Text Button

    - by psheriff
    Some of our customers are asking us to give them a Windows 8 look and feel for their applications. This includes things like buttons, tiles, application bars, and other features. In this blog post I will describe how to create a button that looks similar to those you will find in a Windows 8 application bar. In Figure 1 you can see two different kinds of buttons. In the top row is a WPF button where the content of the button includes a Border, an Image and a TextBlock. In the bottom row are four...(read more)

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  • [Windows 8] Please implement the PlayTo feature in your media apps

    - by Benjamin Roux
    One of the greatest feature in Windows 8 apps is the ability to stream the video/photos/music you’re playing to any DLNA capable device in your network. Meaning that if you’re watching a movie on Netflix on your brand new Surface tablet in your garden, you can continue to watch it without interruption on your TV if you decide to go back inside ! Isn’t that awesome? The best thing is that it takes very few lines to implement that in an app and it’s very easy. You just have to subscribe to one event and feed the EventArgs with the stream you want to display. You can either stream a video/music from a MediaElement/MediaPlayer (see PlayerFramework on CodePlex) or from a simple Image control. Code’s better than text so I invite you to go the sample code of the PlayTo feature on the msdn (it features code for JS, C# and C++). So if you’re developing an app capable of playing video, music or just display some photos, please implement the PlayTo, it will bring a plus to your app.

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  • Uncheck Radio Button on Double Click

    - by Rajneesh Verma
    Hi, Recently I got one requirement that i have to uncheck radio button list when a user double click it (Try to uncheck). I did this using JAVA Script. Below is the code. Designer: 1: < head runat ="server" > 2: < title > :Radio Button List Demo: </ title > 3: < script language ="javascript" type ="text/javascript" > 1:   2: //Global variable to store selectedvalue 3: var lastchecked = "" ; 4:   5: function rblSelectedValue...(read more)

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  • LINQ: Enhancing Distinct With The SelectorEqualityComparer

    - by Paulo Morgado
    On my last post, I introduced the PredicateEqualityComparer and a Distinct extension method that receives a predicate to internally create a PredicateEqualityComparer to filter elements. Using the predicate, greatly improves readability, conciseness and expressiveness of the queries, but it can be even better. Most of the times, we don’t want to provide a comparison method but just to extract the comaprison key for the elements. So, I developed a SelectorEqualityComparer that takes a method that extracts the key value for each element. Something like this: public class SelectorEqualityComparer<TSource, Tkey> : EqualityComparer<TSource> where Tkey : IEquatable<Tkey> { private Func<TSource, Tkey> selector; public SelectorEqualityComparer(Func<TSource, Tkey> selector) : base() { this.selector = selector; } public override bool Equals(TSource x, TSource y) { Tkey xKey = this.GetKey(x); Tkey yKey = this.GetKey(y); if (xKey != null) { return ((yKey != null) && xKey.Equals(yKey)); } return (yKey == null); } public override int GetHashCode(TSource obj) { Tkey key = this.GetKey(obj); return (key == null) ? 0 : key.GetHashCode(); } public override bool Equals(object obj) { SelectorEqualityComparer<TSource, Tkey> comparer = obj as SelectorEqualityComparer<TSource, Tkey>; return (comparer != null); } public override int GetHashCode() { return base.GetType().Name.GetHashCode(); } private Tkey GetKey(TSource obj) { return (obj == null) ? (Tkey)(object)null : this.selector(obj); } } Now I can write code like this: .Distinct(new SelectorEqualityComparer<Source, Key>(x => x.Field)) And, for improved readability, conciseness and expressiveness and support for anonymous types the corresponding Distinct extension method: public static IEnumerable<TSource> Distinct<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> selector) where TKey : IEquatable<TKey> { return source.Distinct(new SelectorEqualityComparer<TSource, TKey>(selector)); } And the query is now written like this: .Distinct(x => x.Field) For most usages, it’s simpler than using a predicate.

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  • Is creating a full application in Silverlight advisable?

    - by Anthony
    Is creating a huge public site fully in Silverlight really advisable? for eg. an ecommerce site. I don't want to start any debate but actually I feel Silverlight shouldn't be used for full website because the biggest loss you incur is of SEO. No search engines till today can parse the xap file and index it based on it's content. You can get around it by doing ifs and thens like if Silverlight is not supported then make an Asp.Net equivalent page for it but that only doubles our effort of making application, more than anything else. Why write double code in 2 applications meant for the same purpose. If that is the only option why not create Asp.Net application only. What are your views? Thanks in advance :)

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  • How to mock a dynamic object

    - by Daniel Cazzulino
    Someone asked me how to mock a dynamic object with Moq, which might be non-obvious. Given the following interface definition: public interface IProject { string Name { get; } dynamic Data { get; } } When you try to setup the mock for the dynamic property values, you get:   What’s important to realize is that a dynamic object is just a plain object, whose properties happen to be resolved at runtime. Kinda like reflection, if you will: all public properties of whatever object happens to be the instance, will be resolved just fine at runtime. Therefore, one way to mock this dynamic is to just create an anonymous type with the properties we want, and set the dynamic property to return that:...Read full article

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  • TypeScript first impressions

    - by Bertrand Le Roy
    Anders published a video of his new project today, which aims at creating a superset of JavaScript, that compiles down to regular current JavaScript. Anders is a tremendously clever guy, and it always shows in his work. There is much to like in the enterprise (good code completion, refactoring and adoption of the module pattern instead of namespaces to name three), but a few things made me rise an eyebrow. First, there is no mention of CoffeeScript or Dart, but he does talk briefly about Script# and GWT. This is probably because the target audience seems to be the same as the audience for the latter two, i.e. developers who are more comfortable with statically-typed languages such as C# and Java than dynamic languages such as JavaScript. I don’t think he’s aiming at JavaScript developers. Classes and interfaces, although well executed, are not especially appealing. Second, as any code generation tool (and this is true of CoffeeScript as well), you’d better like the generated code. I didn’t, unfortunately. The code that I saw is not the code I would have written. What’s more, I didn’t always find the TypeScript code especially more expressive than what it gets compiled to. I also have a few questions. Is it possible to duck-type interfaces? For example, if I have an IPoint2D interface with x and y coordinates, can I pass any object that has x and y into a function that expects IPoint2D or do I need to necessarily create a class that implements that interface, and new up an instance that explicitly declares its contract? The appeal of dynamic languages is the ability to make objects as you go. This needs to be kept intact. More technical: why are generated variables and functions prefixed with _ rather than the $ that the EcmaScript spec recommends for machine-generated variables? In conclusion, while this is a good contribution to the set of ideas around JavaScript evolution, I don’t expect a lot of adoption outside of the devoted Microsoft developers, but maybe some influence on the language itself. But I’m often wrong. I would certainly not use it because I disagree with the central motivation for doing this: Anders explicitly says he built this because “writing application-scale JavaScript is hard”. I would restate that “writing application-scale JavaScript is hard for people who are used to statically-typed languages”. The community has built a set of good practices over the last few years that do scale quite well, and many people are successfully developing and maintaining impressive applications directly in JavaScript. You can play with TypeScript here: http://www.typescriptlang.org

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  • Looking into the JQuery Carousel Lite Plugin

    - by nikolaosk
    I have been using JQuery for a couple of years now and it has helped me to solve many problems on the client side of web development. You can find all my posts about JQuery in this link. In this post I will be providing you with a hands-on example on the JQuery Carousel Lite Plugin.If you want you can have a look at this post, where I describe the JQuery Cycle Plugin. I will be writing more posts regarding the most commonly used JQuery Plugins. I have been using extensively this plugin in my websites.You can show a portion of a set of images with previous and next navigation.In this hands-on example I will be using Expression Web 4.0.This application is not a free application. You can use any HTML editor you like.You can use Visual Studio 2012 Express edition. You can download it here. You can download this plugin from this linkI launch Expression Web 4.0 and then I type the following HTML markup (I am using HTML 5)<html lang="en">  <head>    <title>Liverpool Legends</title>        <meta http-equiv="Content-Type" content="text/html;charset=utf-8" >        <link rel="stylesheet" type="text/css" href="style.css">        <script type="text/javascript" src="jquery-1.8.3.min.js"> </script>     <script type="text/javascript" src="jcarousellite_1.0.1.min.js"></script>      <script type="text/javascript">        $(function () {            $(".theImages").jCarouselLite({                btnNext: "#Nextbtn",                btnPrev: "#Previousbtn"            });        });    </script>       </head>  <body>    <header>        <h1>Liverpool Legends</h1>    </header>        <div id="main">           <img id="Previousbtn" src="previous.png" />        <div class="theImages">            <ul>                <li><img src="championsofeurope.jpg"></li>                <li><img src="steven_gerrard.jpg"></li>                <li><img src="ynwa.jpg"></li>                <li><img src="dalglish.jpg"></li>                <li><img src="Souness.jpg"></li>                  </ul>    </div>    <img id="Nextbtn" src="next.png" />          </div>            <footer>        <p>All Rights Reserved</p>      </footer>     </body>  </html>  This is a very simple markup. I have added my photos (make sure you use your own when trying this example)I have added references to the JQuery library (current version is 1.8.3) and the JQuery Carousel Lite Plugin. Then I add 5 images in the theImages div element.The Javascript code that makes it all happen follows.  <script type="text/javascript">        $(function () {            $(".theImages").jCarouselLite({                btnNext: "#Nextbtn",                btnPrev: "#Previousbtn"            });        });    </script>I also have added some basic CSS style rules in the style.css file. body{background-color:#efefef;color:#791d22;}       #Previousbtn{position:absolute; left:5px; top:100px;}#Nextbtn {position:absolute; left:812px; top:100px;}.theImages {margin-left:145px;margin-top:10px;} It couldn't be any simpler than that. I view my simple in Internet Explorer 10 and it works as expected.I have tested this simple solution in all major browsers and it works fine.Hope it helps!!!

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  • Detecting HTML5/CSS3 Features using Modernizr

    - by dwahlin
    HTML5, CSS3, and related technologies such as canvas and web sockets bring a lot of useful new features to the table that can take Web applications to the next level. These new technologies allow applications to be built using only HTML, CSS, and JavaScript allowing them to be viewed on a variety of form factors including tablets and phones. Although HTML5 features offer a lot of promise, it’s not realistic to develop applications using the latest technologies without worrying about supporting older browsers in the process. If history has taught us anything it’s that old browsers stick around for years and years which means developers have to deal with backward compatibility issues. This is especially true when deploying applications to the Internet that target the general public. This begs the question, “How do you move forward with HTML5 and CSS3 technologies while gracefully handling unsupported features in older browsers?” Although you can write code by hand to detect different HTML5 and CSS3 features, it’s not always straightforward. For example, to check for canvas support you need to write code similar to the following:   <script> window.onload = function () { if (canvasSupported()) { alert('canvas supported'); } }; function canvasSupported() { var canvas = document.createElement('canvas'); return (canvas.getContext && canvas.getContext('2d')); } </script> If you want to check for local storage support the following check can be made. It’s more involved than it should be due to a bug in older versions of Firefox. <script> window.onload = function () { if (localStorageSupported()) { alert('local storage supported'); } }; function localStorageSupported() { try { return ('localStorage' in window && window['localStorage'] != null); } catch(e) {} return false; } </script> Looking through the previous examples you can see that there’s more than meets the eye when it comes to checking browsers for HTML5 and CSS3 features. It takes a lot of work to test every possible scenario and every version of a given browser. Fortunately, you don’t have to resort to writing custom code to test what HTML5/CSS3 features a given browser supports. By using a script library called Modernizr you can add checks for different HTML5/CSS3 features into your pages with a minimal amount of code on your part. Let’s take a look at some of the key features Modernizr offers.   Getting Started with Modernizr The first time I heard the name “Modernizr” I thought it “modernized” older browsers by added missing functionality. In reality, Modernizr doesn’t actually handle adding missing features or “modernizing” older browsers. The Modernizr website states, “The name Modernizr actually stems from the goal of modernizing our development practices (and ourselves)”. Because it relies on feature detection rather than browser sniffing (a common technique used in the past – that never worked that great), Modernizr definitely provides a more modern way to test features that a browser supports and can even handle loading additional scripts called shims or polyfills that fill in holes that older browsers may have. It’s a great tool to have in your arsenal if you’re a web developer. Modernizr is available at http://modernizr.com. Two different types of scripts are available including a development script and custom production script. To generate a production script, the site provides a custom script generation tool rather than providing a single script that has everything under the sun for HTML5/CSS3 feature detection. Using the script generation tool you can pick the specific test functionality that you need and ignore everything that you don’t need. That way the script is kept as small as possible. An example of the custom script download screen is shown next. Notice that specific CSS3, HTML5, and related feature tests can be selected. Once you’ve downloaded your custom script you can add it into your web page using the standard <script> element and you’re ready to start using Modernizr. <script src="Scripts/Modernizr.js" type="text/javascript"></script>   Modernizr and the HTML Element Once you’ve add a script reference to Modernizr in a page it’ll go to work for you immediately. In fact, by adding the script several different CSS classes will be added to the page’s <html> element at runtime. These classes define what features the browser supports and what features it doesn’t support. Features that aren’t supported get a class name of “no-FeatureName”, for example “no-flexbox”. Features that are supported get a CSS class name based on the feature such as “canvas” or “websockets”. An example of classes added when running a page in Chrome is shown next:   <html class=" js flexbox canvas canvastext webgl no-touch geolocation postmessage websqldatabase indexeddb hashchange history draganddrop websockets rgba hsla multiplebgs backgroundsize borderimage borderradius boxshadow textshadow opacity cssanimations csscolumns cssgradients cssreflections csstransforms csstransforms3d csstransitions fontface generatedcontent video audio localstorage sessionstorage webworkers applicationcache svg inlinesvg smil svgclippaths"> Here’s an example of what the <html> element looks like at runtime with Internet Explorer 9:   <html class=" js no-flexbox canvas canvastext no-webgl no-touch geolocation postmessage no-websqldatabase no-indexeddb hashchange no-history draganddrop no-websockets rgba hsla multiplebgs backgroundsize no-borderimage borderradius boxshadow no-textshadow opacity no-cssanimations no-csscolumns no-cssgradients no-cssreflections csstransforms no-csstransforms3d no-csstransitions fontface generatedcontent video audio localstorage sessionstorage no-webworkers no-applicationcache svg inlinesvg smil svgclippaths">   When using Modernizr it’s a common practice to define an <html> element in your page with a no-js class added as shown next:   <html class="no-js">   You’ll see starter projects such as HTML5 Boilerplate (http://html5boilerplate.com) or Initializr (http://initializr.com) follow this approach (see my previous post for more information on HTML5 Boilerplate). By adding the no-js class it’s easy to tell if a browser has JavaScript enabled or not. If JavaScript is disabled then no-js will stay on the <html> element. If JavaScript is enabled, no-js will be removed by Modernizr and a js class will be added along with other classes that define supported/unsupported features. Working with HTML5 and CSS3 Features You can use the CSS classes added to the <html> element directly in your CSS files to determine what style properties to use based upon the features supported by a given browser. For example, the following CSS can be used to render a box shadow for browsers that support that feature and a simple border for browsers that don’t support the feature: .boxshadow #MyContainer { border: none; -webkit-box-shadow: #666 1px 1px 1px; -moz-box-shadow: #666 1px 1px 1px; } .no-boxshadow #MyContainer { border: 2px solid black; }   If a browser supports box-shadows the boxshadow CSS class will be added to the <html> element by Modernizr. It can then be associated with a given element. This example associates the boxshadow class with a div with an id of MyContainer. If the browser doesn’t support box shadows then the no-boxshadow class will be added to the <html> element and it can be used to render a standard border around the div. This provides a great way to leverage new CSS3 features in supported browsers while providing a graceful fallback for older browsers. In addition to using the CSS classes that Modernizr provides on the <html> element, you also use a global Modernizr object that’s created. This object exposes different properties that can be used to detect the availability of specific HTML5 or CSS3 features. For example, the following code can be used to detect canvas and local storage support. You can see that the code is much simpler than the code shown at the beginning of this post. It also has the added benefit of being tested by a large community of web developers around the world running a variety of browsers.   $(document).ready(function () { if (Modernizr.canvas) { //Add canvas code } if (Modernizr.localstorage) { //Add local storage code } }); The global Modernizr object can also be used to test for the presence of CSS3 features. The following code shows how to test support for border-radius and CSS transforms:   $(document).ready(function () { if (Modernizr.borderradius) { $('#MyDiv').addClass('borderRadiusStyle'); } if (Modernizr.csstransforms) { $('#MyDiv').addClass('transformsStyle'); } });   Several other CSS3 feature tests can be performed such as support for opacity, rgba, text-shadow, CSS animations, CSS transitions, multiple backgrounds, and more. A complete list of supported HTML5 and CSS3 tests that Modernizr supports can be found at http://www.modernizr.com/docs.   Loading Scripts using Modernizr In cases where a browser doesn’t support a specific feature you can either provide a graceful fallback or load a shim/polyfill script to fill in missing functionality where appropriate (more information about shims/polyfills can be found at https://github.com/Modernizr/Modernizr/wiki/HTML5-Cross-Browser-Polyfills). Modernizr has a built-in script loader that can be used to test for a feature and then load a script if the feature isn’t available. The script loader is built-into Modernizr and is also available as a standalone yepnope script (http://yepnopejs.com). It’s extremely easy to get started using the script loader and it can really simplify the process of loading scripts based on the availability of a particular browser feature. To load scripts dynamically you can use Modernizr’s load() function which accepts properties defining the feature to test (test property), the script to load if the test succeeds (yep property), the script to load if the test fails (nope property), and a script to load regardless of if the test succeeds or fails (both property). An example of using load() with these properties is show next: Modernizr.load({ test: Modernizr.canvas, yep: 'html5CanvasAvailable.js’, nope: 'excanvas.js’, both: 'myCustomScript.js' }); In this example Modernizr is used to not only load scripts but also to test for the presence of the canvas feature. If the target browser supports the HTML5 canvas then the html5CanvasAvailable.js script will be loaded along with the myCustomScript.js script (use of the yep property in this example is a bit contrived – it was added simply to demonstrate how the property can be used in the load() function). Otherwise, a polyfill script named excanvas.js will be loaded to add missing canvas functionality for Internet Explorer versions prior to 9. Once excanvas.js is loaded the myCustomScript.js script will be loaded. Because Modernizr handles loading scripts, you can also use it in creative ways. For example, you can use it to load local scripts when a 3rd party Content Delivery Network (CDN) such as one provided by Google or Microsoft is unavailable for whatever reason. The Modernizr documentation provides the following example that demonstrates the process for providing a local fallback for jQuery when a CDN is down:   Modernizr.load([ { load: '//ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.js', complete: function () { if (!window.jQuery) { Modernizr.load('js/libs/jquery-1.6.4.min.js'); } } }, { // This will wait for the fallback to load and // execute if it needs to. load: 'needs-jQuery.js' } ]); This code attempts to load jQuery from the Google CDN first. Once the script is downloaded (or if it fails) the function associated with complete will be called. The function checks to make sure that the jQuery object is available and if it’s not Modernizr is used to load a local jQuery script. After all of that occurs a script named needs-jQuery.js will be loaded. Conclusion If you’re building applications that use some of the latest and greatest features available in HTML5 and CSS3 then Modernizr is an essential tool. By using it you can reduce the amount of custom code required to test for browser features and provide graceful fallbacks or even load shim/polyfill scripts for older browsers to help fill in missing functionality. 

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  • Stardock Fences

    - by guybarrette
    I installed the free Fences utility program by Stardock today.  What a cool way to group and organize your desktop icons. Here’s my desktop with a bunch of icons grouped in fences. var addthis_pub="guybarrette";

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  • Telephone.com

    - by jrice
    Check Telephone.com our new website using .netframework 3.5 You can now add your own twist to telephone.com and personalize your messaging style by writing your own SMS applications to implement any feature you would like to add to your messaging experience using our wcf rest API Regards

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  • Why C# does not support multiple inheritance?

    - by Jalpesh P. Vadgama
    Yesterday, One of my friend Dharmendra ask me that why C# does not support multiple inheritance. This is question most of the people ask every time. So I thought it will be good to write a blog post about it. So why it does not support multiple inheritance? I tried to dig into the problem and I have found the some of good links from C# team from Microsoft for why it’s not supported in it. Following is a link for it. http://blogs.msdn.com/b/csharpfaq/archive/2004/03/07/85562.aspx Also, I was giving some of the example to my friend Dharmendra where multiple inheritance can be a problem.The problem is called the diamond problem. Let me explain a bit. If you have class that is inherited from the more then one classes and If two classes have same signature function then for child class object, It is impossible to call specific parent class method. Here is the link that explains more about diamond problem. http://en.wikipedia.org/wiki/Diamond_problem Now of some of people could ask me then why its supporting same implementation with the interfaces. But for interface you can call that method explicitly that this is the method for the first interface and this the method for second interface. This is not possible with multiple inheritance. Following is a example how we can implement the multiple interface to a class and call the explicit method for particular interface. Multiple Inheritance in C# That’s it. Hope you like it. Stay tuned for more update..Till then happy programming.

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  • Fixing SharePoint 2010 Permission Problems on Windows 7

    - by Ricardo Peres
    I had a tough time trying to have SharePoint working perfectly on a Windows 7 development machine that was occasionally disconnected from the Active Directory (when I am home I must connect through a VPN). I mostly had problems with service applications such as User Profile, Managed Metadata, Business Connectivity Services and the like, and all I knew were cryptical messages such as “access denied” or “the service or application pool is not started”. I was sure that both the services and application pools were running under a domain account that had proper permissions on the SQL Server instance, and basically it was a fresh installation. Lots of people are having the same problem, apparently. After banging my head against the wall for several days, I remembered about farm (what I had) versus stand-alone (which I had never tried) installations. Bingo! Here’s what I did: I dropped all SharePoint databases and logins and reinstalled SP from scratch, only this time not in farm mode, but as stand-alone. After the SharePoint Configuration Wizard started, I cancelled it and started the Management Shell. I created the configuration database manually by using the New-SPConfigurationDatabase cmdlet where I specified a local account – something that the Configuration Wizard wouldn’t allow me to do. Then I restarted the Configuration Wizard and everything began working perfectly! Yes, I got some pre-configured service applications and also some content which I didn’t need, but I realized it was possible to drop and recreate everything the way I wanted to. All services and application pools are now running under local accounts, which is fine for my development needs. Really, Microsoft… I hope this will bring light to someone facing the same problems!

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  • CQRS at Jax Code Camp 2012

    - by brian_ritchie
    Continuing my CQRS world tour...I gave my CQRS presentation at the Jax Code Camp 2012 this past Saturday.  It was a great crowd with lots of representation from the wicked smart engineers at Feature[23] and others from the Jacksonville developer community. If you'd like to take a look at my slide deck, they are out on SlideShare. The code I demoed is from Ashic Mahtab and is posted on github.   If you can't get enough of CQRS, Microsoft has joined the CQRS party with their CQRS Journey which includes a free e-book called Exploring CQRS and Event Sourcing.

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  • 32 bit ODBC drivers on 64 bit Windows

    - by guybarrette
    It’s been a while since I had to use an ODBC driver.  Today I learned… That when you install a 32 bit ODBC driver on a 64 bit Windows but it doesn’t show up in the Data Sources admin tool because this tool displays only 64 bit drivers. That you can manage a 32 bit ODBC driver on a 64 bit Windows using the 32 bit Data Sources admin tool located here: C:\Windows\SysWOW64\odbcad32.exe That 64 bit software can’t use 32 bit ODBC drivers. That 32 bit software installed on a 64 bit Windows can use 32 bit ODBC drivers. var addthis_pub="guybarrette";

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  • Rendering Text with the HTML5 Canvas

    - by dwahlin
    In a previous post I walked through the fundamentals of rendering shapes such as squares and circles using the HTML5 Canvas API. In this post I’ll provide a simple example of rendering and rotating text. To render text you can use the fillText() or strokeText() functions which take the text to render as well as the x and y coordinates of where to render it. To rotate text you can use the transform functions available with the HTML5 Canvas such as save(), rotate(), and restore(). To run the live demos that follow click the Result tab in the blue bar of each demo.   Rendering Text This example provides a simple look at how text can be rendered using the HTML5 Canvas. It iterates through a loop, updates the text and font size dynamically, measures the width of the text using the measureText() function, and then calls fillText() to render the text with the desired font size to the screen.   Here’s what the code above renders:   Rotating Text This example shows how text can be rendered and even rotated by using transform functions built into the HTML5 Canvas. The code starts by rendering text the standard way using fillText(). It then saves the state of the canvas performs an x,y coordinate transform (moves to 100, 300 respectively) and then rotates the canvas –90 degrees using the rotate() function. After the text is rendered, the canvas is reverted back to it’s existing state (saved by calling the save() function) by calling the restore() function. An additional line of text is then rendered.   Here’s what the code above renders:   If you’re interested in learning more about the HTML5 Canvas and how it can be used in your Web or Windows 8 applications, check out my HTML5 Canvas Fundamentals course from Pluralsight.

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  • Working with Tile Notifications in Windows 8 Store Apps – Part I

    - by dwahlin
    One of the features that really makes Windows 8 apps stand out from others is the tile functionality on the start screen. While icons allow a user to start an application, tiles provide a more engaging way to engage the user and draw them into an application. Examples of “live” tiles on part of my current start screen are shown next: I’ll admit that if you get enough of these tiles going the start screen can actually be a bit distracting. Fortunately, a user can easily disable a live tile by right-clicking on it or pressing and holding a tile on a touch device and then selecting Turn live tile off from the AppBar: The can also make a wide tile smaller (into a square tile) or make a square tile bigger assuming the application supports both squares and rectangles. In this post I’ll walk through how to add tile notification functionality into an application. Both XAML/C# and HTML/JavaScript apps support live tiles and I’ll show the code for both options.   Understanding Tile Templates The first thing you need to know if you want to add custom tile functionality (live tiles) into your application is that there is a collection of tile templates available out-of-the-box. Each tile template has XML associated with it that you need to load, update with your custom data, and then feed into a tile update manager. By doing that you can control what shows in your app’s tile on the Windows 8 start screen. So how do you learn more about the different tile templates and their respective XML? Fortunately, Microsoft has a nice documentation page in the Windows 8 Store SDK. Visit http://msdn.microsoft.com/en-us/library/windows/apps/hh761491.aspx to see a complete list of square and wide/rectangular tile templates that you can use. Looking through the templates you’ll It has the following XML template associated with it:  <tile> <visual> <binding template="TileSquareBlock"> <text id="1">Text Field 1</text> <text id="2">Text Field 2</text> </binding> </visual> </tile> An example of a wide/rectangular tile template is shown next:    <tile> <visual> <binding template="TileWideImageAndText01"> <image id="1" src="image1.png" alt="alt text"/> <text id="1">Text Field 1</text> </binding> </visual> </tile>   To use these tile templates (or others you find interesting), update their content, and get them to show for your app’s tile on the Windows 8 start screen you’ll need to perform the following steps: Define the tile template to use in your app Load the tile template’s XML into memory Modify the children of the <binding> tag Feed the modified tile XML into a new TileNotification instance Feed the TileNotification instance into the Update() method of the TileUpdateManager In the remainder of the post I’ll walk through each of the steps listed above to provide wide and square tile notifications for an application. The wide tile that’s shown will show an image and text while the square tile will only show text. If you’re going to provide custom tile notifications it’s recommended that you provide wide and square tiles since users can switch between the two of them directly on the start screen. Note: When working with tile notifications it’s possible to manipulate and update a tile’s XML template without having to know XML parsing techniques. This can be accomplished using some C# notification extension classes that are available. In this post I’m going to focus on working with tile notifications using an XML parser so that the focus is on the steps required to add notifications to the Windows 8 start screen rather than on external extension classes. You can access the extension classes in the Windows 8 samples gallery if you’re interested.   Steps to Create Custom App Tile Notifications   Step 1: Define the tile template to use in your app Although you can cut-and-paste a tile template’s XML directly into your C# or HTML/JavaScript Windows store app and then parse it using an XML parser, it’s easier to use the built-in TileTemplateType enumeration from the Windows.UI.Notifications namespace. It provides direct access to the XML for the various templates so once you locate a template you like in the documentation (mentioned above), simplify reference it:HTML/JavaScript var notifications = Windows.UI.Notifications; var template = notifications.TileTemplateType.tileWideImageAndText01; .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }   XAML/C# var template = TileTemplateType.TileWideImageAndText01;   Step 2: Load the tile template’s XML into memory Once the target template’s XML is identified, load it into memory using the TileUpdateManager’s GetTemplateContent() method. This method parses the template XML and returns an XmlDocument object:   HTML/JavaScript   var tileXml = notifications.TileUpdateManager.getTemplateContent(template); .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }   XAML/C#  var tileXml = TileUpdateManager.GetTemplateContent(template);   Step 3: Modify the children of the <binding> tag Once the XML for a given template is loaded into memory you need to locate the appropriate <image> and/or <text> elements in the XML and update them with your app data. This can be done using standard XML DOM manipulation techniques. The example code below locates the image folder and loads the path to an image file located in the project into it’s inner text. The code also creates a square tile that consists of text, updates it’s <text> element, and then imports and appends it into the wide tile’s XML.   HTML/JavaScript var image = tileXml.selectSingleNode('//image[@id="1"]'); image.setAttribute('src', 'ms-appx:///images/' + imageFile); image.setAttribute('alt', 'Live Tile'); var squareTemplate = notifications.TileTemplateType.tileSquareText04; var squareTileXml = notifications.TileUpdateManager.getTemplateContent(squareTemplate); var squareTileTextAttributes = squareTileXml.selectSingleNode('//text[@id="1"]'); squareTileTextAttributes.appendChild(squareTileXml.createTextNode(content)); var node = tileXml.importNode(squareTileXml.selectSingleNode('//binding'), true); tileXml.selectSingleNode('//visual').appendChild(node); .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }   XAML/C#var tileXml = TileUpdateManager.GetTemplateContent(template); var text = tileXml.SelectSingleNode("//text[@id='1']"); text.AppendChild(tileXml.CreateTextNode(content)); var image = (XmlElement)tileXml.SelectSingleNode("//image[@id='1']"); image.SetAttribute("src", "ms-appx:///Assets/" + imageFile); image.SetAttribute("alt", "Live Tile"); Debug.WriteLine(image.GetXml()); var squareTemplate = TileTemplateType.TileSquareText04; var squareTileXml = TileUpdateManager.GetTemplateContent(squareTemplate); var squareTileTextAttributes = squareTileXml.SelectSingleNode("//text[@id='1']"); squareTileTextAttributes.AppendChild(squareTileXml.CreateTextNode(content)); var node = tileXml.ImportNode(squareTileXml.SelectSingleNode("//binding"), true); tileXml.SelectSingleNode("//visual").AppendChild(node);  Step 4: Feed the modified tile XML into a new TileNotification instance Now that the XML data has been updated with the desired text and images, it’s time to load the XmlDocument object into a new TileNotification instance:   HTML/JavaScript var tileNotification = new notifications.TileNotification(tileXml); .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }   XAML/C#var tileNotification = new TileNotification(tileXml);  Step 5: Feed the TileNotification instance into the Update() method of the TileUpdateManager Once the TileNotification instance has been created and the XmlDocument has been passed to its constructor, it needs to be passed to the Update() method of a TileUpdator in order to be shown on the Windows 8 start screen:   HTML/JavaScript notifications.TileUpdateManager.createTileUpdaterForApplication().update(tileNotification); .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }   XAML/C#TileUpdateManager.CreateTileUpdaterForApplication().Update(tileNotification);    Once the tile notification is updated it’ll show up on the start screen. An example of the wide and square tiles created with the included demo code are shown next:     Download the HTML/JavaScript and XAML/C# sample application here. In the next post in this series I’ll walk through how to queue multiple tiles and clear a queue.

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  • Speaking on MonoDroid - Android Developer Conference (AnDevCon) - March, 2011 in San Francisco

    - by Wallym
    I'm honored to announce that I'll be speaking at AnDevCon in March, 2011 in San Francisco.  I've been spending a significant amount of time on iPhone and Android.  I'm trying to get a startup off the ground.  Mobile devices will be an integral part of this startup.  As such, iPhone and Android will be our target devices at this point in time.  I'll be doing an all day pre-class as well as parts of the pre-class as sessions through out the conference.  I'm looking forward to this.  If you are interested in Android Development, please come to this conference.  If you are coming to this conference, please look me up while there.

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