Tag | Csharp Posts

(This is a series of posts covering how to include a WinForm app inside a SharePoint 2007 application. For further info, please see Posts One, Three, and Four. All of the code can be downloaded in this post, Post Two.)In my last post, I explained why we decided to use a Click Once application to solve our business problem. To quickly review, we needed a way for our business users to upload documents to a SharePoint 2007 document library in mass, set the meta data, set the permissions per document, ...
In this Issue: Michael Washington, Timmy Kokke, Pete Brown, Paul Yanez, Emil Stoychev, Jeremy Likness, and Pavan Podila. Shoutouts: If you've got some time to spend, the User Experience Kit is packed with info: User Experience Kit, and just plain fun to navigate ... thanks Scott Barnes for reminding me about it! Jesse Liberty is looking for some help organizing and cataloging posts for a new project he's got going: Help Wanted Emil Stoychev posted Slides and demos from my talk on Silverlight 4 From ...
Started a new Sketchflow Prototype in Expression Blend recently and documented each of the steps. This blog entry covers some of those steps, which are the basic elements of any prototype. I will have more information regarding design, prototype creation, and the process of the initial phases for development in the future. For now, I hope you enjoy this short walk through. Also, be sure to check out my last quick entry on Sketchflow. I started off with a Sketchflow Project, just like I did in my ...
In this Issue: Jason Allor, Bill Reiss, Mike Snow, Tim Heuer, John Papa, Jeremy Likness, and Dave Campbell. Shoutouts: You saw it at MIX10 and DevConnections... now you can give it a dance, John Papa announced eBay Simple Lister Beta Now Available Mike Snow posted some info about and a link to his new Flickr/Bing/Google High End Image Viewer and he's looking for feedback From SilverlightCream.com: Hierarchical Data Trees With A Custom DataSource Jason Allor is rounding out a series here in his new ...
It’s funny that two posts so close together speak about flexibility with the LINQ to Twitter provider. There are certain things you know from experience on when to make software more flexible and when to save time. This is another one of those times when I got lucky and made the right choice up front. I’m talking about the ability to switch URLs. It only makes sense that Twitter should begin versioning their API as it matures. In fact, most of the entire API has moved to the v1 URL at “https://api.twitter.com/1/”, ...
The Orchard Project is a new OOS Microsoft project that is being developed up on CodePlex. From the Orchard home page on CodePlex, it states “Orchard project is focused on delivering a .NET-based CMS application that will allow users to rapidly create content-driven Websites, and an extensibility framework that will allow developers and customizers to provide additional functionality through modules and themes.” The Orchard Project site contains additional information including documentation and ...
Lately I’ve ran into situations where I had to change elements or had to request a value in the DOM from Silverlight. jLight, which was introduced in an earlier article, can help with that. jQuery offers great ways to change CSS during runtime. Silverlight can access the DOM, but it isn’t as easy as jQuery. All examples shown in this article can be looked at in this online demo. The code can be downloaded here. Part 1: The easy stuff Selecting and changing properties is pretty straight forward. Setting ...
In this Issue: Michael Washington, Jeremy Likness, Giorgetti Alessandro, Antoni Dol, Mike Taulty, and Braulio Diez. Shoutout: Bart Czernicki lists compelling reasons to use Silverlight 4 for LOB apps: Silverlight 4 - What is New for Business Intelligence Scenarios From SilverlightCream.com: Silverlight Advanced MVVM Video Player After the initial posting on his Simple MVVM Video player, Michael Washington got some feedback and decided to do a part 2 demonstrating exactly how easy it is to customize... ...
This week Scott Cate came to South Florida and gave a great talk on his Visual Studio shortcuts and how he uses them. You can find a collection of short video’s he has done at: http://scottcate.com/tricks/ Also you might want to check out Sara Ford’s blog: http://blogs.msdn.com/saraf... she started doing a tip a day but has many more now. Scott covers many of these in the videos. And.. as with past releases, the languages team has provided PDF’s with a lot of keyboard shortcuts, this ...
LINQ to Twitter’s goal is to support the entire Twitter API. So, if you see a new feature pop-up, it will be in-queue for inclusion. The same holds for the new X-Feature… response headers for User/Search requests. However, you don’t have to wait for a special property on the TwitterContext to access these headers, you can just use them via the TwitterContext.ResponseHeaders collection. The following code demonstrates how to access the new X-Feature… headers with LINQ to Twitter: var user = (from ...
http://csharperimage.jeremy... How to make Silverlight datagrid more user friendly.(http://weblogs.as... http://www.galasoft.ch/mvvm... ...
In this entry I just want to cover some examples of how to connect to Webtrends DX Web Services. The DX Web Services use REST as the architecture, providing simple URI based end points to connect to. With the Webtrends SDK you can connect to these services with your account information. Here are the basic steps to retrieve a profile list, the reports from one of those profiles, and then the report you want from that report list. First step is to create a Webtrends User. WebTrends.Sdk.Account.User ...
MvcContrib contains a feature called Portable Areas which I’ve recently blogged about. In short, portable areas provide a way to distribute MVC binary components as simple .NET assemblies where the aspx/ascx files are actually compiled into the assembly as embedded resources. This is an extremely cool feature but once you start building robust portable areas, you’ll also want to be able to access other external files like css and javascript. After my recent post suggesting portable areas be expanded ...
Introduction With the recent news about Silverlight on the Windows Phone and all the great Out-Of-Browser features in the upcoming Silverlight 4 you almost forget Silverlight is a browser plugin. It most often runs in a web browser and often as a control. In many cases you need to communicate with the browser to get information about textboxes, events or details about the browser itself. To do this you can use JavaScript from Silverlight. Although Silverlight works the same on every browser, JavaScript ...
I recently started a new job and one of my first tasks was to implement a "popular products" design. The parameters were that it be done with NHibernate and be cached for 24 hours at a time because the query will be pretty taxing and the results do not need to be constantly up to date. This ended up being tougher than it sounds. The database schema meant a minimum of four joins with filtering and ordering criteria. I decided to use a stored procedure rather than letting NHibernate create the SQL ...

Unfortunately, in the current version of the Windows Phone 7 Silverlight framework, it is not possible to attach any command on the ApplicationBarMenuItem and ApplicationBarButton controls. These two controls appear in the Application Bar, for example with the following markup:

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Why do I always forget this? $('#someId).dialog('close'); ...
One of the things that might be surprising in the LINQ Distinct standard query operator is that it doesn’t automatically work properly on custom classes. There are reasons for this, which I’ll explain shortly. The example I’ll use in this post focuses on pulling a unique list of names to load into a drop-down list. I’ll explain the sample application, show you typical first shot at Distinct, explain why it won’t work as you expect, and then demonstrate a solution to make Distinct work with any custom ...
In this Issue: Alan Mendelevich, Siyamand Ayubi, Rudi Grobler(-2-), Josh Smith, VinitYadav, and Dave Campbell. Shoutouts: Jordan Knight has a demo up of a project he did for DigiGirlz: DigiGirlz, Deep Zoom and Azure, hopefully we'll get source later :) Jeremy Likness has a must-read post on his Ten Reasons to use the Managed Extensibility Framework I put this on another post earlier, but if you want some desktop bling for WP7, Ozymandias has some: I Love Windows Phone Wallpaper If you're not going ...
1: System.Collections.IDiction... enumerator = context.Cache.GetEnumerator(); 2: while (enumerator.MoveNext()) 3: { 4: context.Cache.Remove(enumer... 5: } ...
A short while ago I posted some code for a C# twitter update. I decided to move the same functionality / logic to F#. Here is what I came up with. 1: namespace Server.Actions 2: 3: open System 4: open System.IO 5: open System.Net 6: open System.Text 7: 8: type public TwitterUpdate() = 9: 10: //member variables 11: [<DefaultValue>] val mutable _body : string 12: [<DefaultValue>] val mutable _userName : string 13: [<DefaultValue>] val mutable _password : string 14: 15: //Properties ...
SOLID came up again in discussion. What is SOLID? Well, glad you asked, because I am going to elaborate on the SOLID Principles a bit. Initial Concept S Single Responsibility Principle O Open/Closed Principle L Liskov Substitution Principle I Interface Segregation Principle D Dependency Inversion/Injection Principle The Single Responsibility Principle (SRP) is stated that every object should have a single responsibility and should be entirely encapsulated by the class. This helps keep cohesion. Here ...
This is the third post in a series related to build and deployment considerations as I’ve been exploring MVC Portable Areas: #1 – Using Web Application Project to build portable areas #2 – Conventions for deploying portable area static files #3 – Portable area static files as embedded resources In the last post, I walked through a convention for managing static files. In this post I’ll discuss another approach to manage static files (e.g., images, css, js, etc.). With this approach, you *also* compile ...
This is the second post in a series related to build and deployment considerations as I’ve been exploring MVC Portable Areas: #1 – Using Web Application Project to build portable areas #2 – Conventions for deploying portable area static files #3 – Portable area static files as embedded resources As I’ve been digging more into portable areas, one of the things I’ve liked best is the deployment story which enables my *.aspx, *.ascx pages to be compiled into the assembly as embedded resources rather ...
This is the first post in a series related to build and deployment considerations as I’ve been exploring MVC Portable Areas: #1 – Using Web Application Project to build portable areas #2 – Conventions for deploying portable area static files #3 – Portable area static files as embedded resources Portable Areas is a relatively new feature available in MvcContrib that builds upon the new feature called Areas that was introduced in MVC 2. In short, portable areas provide a way to distribute MVC binary ...
.Last time I showed you how to get started building extensions for Expression Blend. Lets build a useful extension this time and go a bit deeper into Blend. Source of project => here Compiled dll => here (extract into /extensions folder of Expression Blend) The Extension When working on large Xaml files in Blend it’s often hard to find a specific control in the "Objects and Timeline Pane”. An extension that searches the active document and presents all elements that satisfy the query would ...
A popular topic that comes up when talking about MVVM is the use of a ViewModelLocator and the many different ways one can be implemented. Rather than getting into the pros and cons on when or why you should use it, I decided I would just post my version of a simple ViewModelLocator and let those who like it use it, and those who don’t, well you know… :) First, a disclaimer. I have not used this code in a production application, it is just something I was tossing around while reading others’ posts ...
In this Issue: Jeremy Likness, Tim Greenfield, Tim Heuer, ondrejsv, XAML Ninja, Nikhil Kothari, Sergey Barskiy, Shawn Oster, smartyP, Christian Schormann(-2-), and John Papa And Glenn Block. Shoutouts: Victor Gaudioso produced a RefCard for DZone: Getting Started with Silverlight and Expression Blend Way to go Victor... it looks great! Gavin Wignall announced Metia launch FourSquare and Bing maps mash up – called Near.me Cheryl Simmons talks about VS2010 and the design surface: Changing Templates ...
In this post, we are going to look into implementing lists into our twitter application and also about enhancing the data grid to display the status messages in a pleasing way with the profile images. Twitter lists are really cool feature that they recently added, I love them and I’ve quite a few lists setup one for DOTNET gurus, SQL Server gurus and one for a few celebrities. You can follow them here. Now let us move onto our tutorial. 1) Lists can be subscribed to in two ways, one can be user’s ...
In this post, we will look at implementing the following in our twitter client - displaying the profile picture in the home page after logging in. So to accomplish this, we will need to do the following steps. 1) First of all, let us create another field in our Global variable static class to hold the profile image url. So just create a static string field in that. public static string profileImage { get; set; } 2) In the Login.xaml.cs file, before the line where we redirect to the Home page if the ...
In this Issue: René Schulte, Jeremy Likness, Hassan, Victor Gaudioso, SilverLaw, Mike Taulty, Phani Raj, Tim Heuer, Christian Schormann, Brad Abrams, David Anson, Diptimaya Patra, and Daniel Vaughan. Shoutouts: Last week, Koen Zwikstra announced Silverlight Spy at MIX10 Anand Iyer announced this for students on the Windows Team Blog: Be a Windows Phone 7 “Rockstar” Justin Angel blogged that Silverlight Isn't Fully Cross-Platform ... let him know if you think it's a yawn or important. On behalf of ...
Project Euler is a awesome site. When working with a new language it can be tricky to find problems that need solving, that are more complex than "Hello World" and simpler than a full blown application. Project Euler gives use just that, cool and thought provoking problems that usually don't take days to solve. I've solved a number of questions with C# and some with Java. BTW, I used Java because it had BigInteger support before .Net. A couple weeks ago, back when winter had a firm grip on Columbus, ...
So I blatantly got this idea from the MIX 10 event. At MIX they held a rockband talent competition type thing (I’m not quite sure of all the details). But the interesting part for me is how they collected votes. They used Twitter (what else, when you have a few thousand geeks available to you). The basic idea was that you tweeted your vote with a # tag, i.e #ROCKBANDVOTE vote Richard How cool…. So the question is how do you write something to collate and count all the votes? Time to press the magic ...
In my last blog post, I wrote how to deploy a SharePoint theme using Features and a solution package. As promised in that post, here is how to update an already deployed master page. There are several ways to update a master page in SharePoint. You could upload a new version to the master page gallery, or you could upload a new master page to the gallery, and then set the site to use this new page. Manually uploading your master page to the master page gallery might be the best option, depending ...
Time for another guest post (check out others in the series), this time bringing together the world of mocking with the world of Entity Framework. A big thanks to Moses for agreeing to do this. Unit Testing Entity Framework Dependent Code using TypeMock Isolator by Muhammad Mosa Introduction Unit testing data access code in my opinion is a challenging thing. Let us consider unit tests and integration tests. In integration tests you are allowed to have environmental dependencies such as a physical ...
In this Issue: Max Paulousky, Jeremy Likness, Mark Tucker, Christian Schormann, Page Brooks, Brad Abrams(-2-), Jeff Wilcox, Unnir, Bea Stollnitz, John Papa and Adam Kinney, and Bill Reiss(-2-). Shoutouts: Ashish Shetty posted his material from his MIX10 presentation: Stepping outside the browser with Silverlight 4 Not Silverlight, but dang useful, Karl Shifflett posted a Visual Studio 2010 XAML Editor IntelliSense Presenter Extension Yavor Georgiev posted his MIX10 material: Two samples from today's ...
When writing tests, other than end-to-end integration tests, we often need to construct test data objects. Of course this can be done using the class’s constructor and manually configuring the object, but to get many objects into a valid state soon becomes a large percentage of the testing effort. After many years of painstakingly creating builders for each of my domain objects I have finally become lazy enough to bother to write a generic, reusable builder class for .NET. To use it you instantiate ...
This is a quick walk through of how to setup things for skinning within a XAML Application. First thing, find the App.xaml file within the WPF or Silverlight Project. Within the App.xaml file set some default styles for your controls. I set the following for a button, label, and border control for an application I am creating. Button Control <Style x:Key="ButtonStyle" TargetType="Button"> <Setter Property="FontFamily" Value="Arial" /> <Setter Property="FontWeight" Value="Bold" /> ...
For what it's worth a simple twitter update. 1: using System; 2: using System.IO; 3: using System.Net; 4: using System.Text; 5: 6: namespace Server.Actions 7: { 8: public class TwitterUpdate 9: { 10: public string Body { get; set; } 11: public string Login { get; set; } 12: public string Password { get; set; } 13: 14: public override void Execute() 15: { 16: try 17: { 18: //encode user name and password 19: string creds = Convert.ToBase64String(Enco... this.Login, ...
Introduction Although it was possible to write extensions for Expression Blend and Expression Design, it wasn’t very easy and out of the box only one addin could be used. With Expression Blend 4 it is possible to write extensions using MEF, the Managed Extensibility Framework. Until today there’s no documentation on how to build these extensions, so look thru the code with Reflector is something you’ll have to do very often. Because Blend and Design are build using WPF searching the visual tree with ...
I recently had a requirement to update the branding on an existing Windows SharePoint Services (WSS version 3.0) site. I needed to update the theme, along with the master page. An additional requirement is that my client likes to have all changes bundled up in SharePoint solutions. This makes it much easier to move code from dev to test to prod and more importantly, makes it easier to undo code migrations if any issues would arise (I agree with this approach). Updating the theme was easy enough. ...
In this Issue: Andy Beaulieu(-2-, -3-), Alex Golesh, Damian Schenkelman, Adam Kinney(-2-), Jeremy Likness, Laurent Bugnion, and John Papa. Shoutouts: Adam Kinney has a good summary up of where to go for all the tools and toys: Install checklist for Silverlight 4 RC, Blend 4 Beta and Windows Phone Developer tools from MIX10 ... tons of links Laurent Bugnion had a few announcements at MIX10: MVVM Light V3 released at #MIX10, and he followed that with What’s new in MVVM Light V3 ... now for Windows ...
Multithreading is supported in Windows Phone 7 Silverlight applications, however the emulator has a bug (which I discovered and was confirmed to me by the dev lead of the emulator team): If you attempt to start a background thread in the MainPage constructor, the thread never starts. The reason is a problem with the emulator UI thread which doesn’t leave any time to the background thread to start. Thankfully there is a workaround (see code below). Also, the bug should be corrected in a future release, ...
In MDI application we can have multiple forms and can work with multiple forms i.e. MDI childs at a time but while developing applications we don't pay attention to the minute details of memory management. Take this as an example, when we develop application say preferably an MDI application, we have multiple child forms inside one parent form. On MDI parent form we would like to have menu strip and tab strip which in turn calls other forms which build the other parts of the application. This also ...
Employee Info Starter Kit is a ASP.NET based web application, which includes very simple user requirements, where we can create, read, update and delete (crud) the employee info of a company. Based on just a database table, it explores and solves most of the major problems in web development architectural space. This open source starter kit extensively uses major features available in latest Visual Studio, ASP.NET and Sql Server to make robust, scalable, secured and maintainable web applications ...
Ok, the title is misleading – I’ll admit it, but there is a way to store your data in Windows Phone 7 Series. Windows Phone 7 Silverlight solutions have what is called Isolated Storage. [XNA has content storage as well] At this time there is no port of SQL Compact engine for Silverlight Isolated Storage. There is no wind of such intention. [That was a question way before WP7 was even rumored to have Silverlight.] There a few options: 1. Microsoft recommends you “simply” use client-server or cloud ...
Finally Silverlight 4 RC is released and also that Windows 7 Phone Series will rely heavily on Silverlight platform for apps platform. its a really good news for Silverlight developers and designers. More information on this here. You can use SL 4 RC with VS 2010. SL 4 RC does not come with VS 2010, you need to download it separately and install it. So for the next part, be ready with VS 2010 and SL4 RC, we will start using them and not betas. With this momentum, let us go to the next part of our ...
I have made a change to my code-based BDD style. I start with a scenario such as: Pre-Editing * Given I am a book editor * And some chapters are locked and some are not * When I view the list of chapters for editing * Then I should see some chapters are editable and are not locked * And I should see some chapters are not editable and are locked and I implement it using a modified SpecUnit base class as: [Concern("Chapter Editing")] public class when_pre_editing_a_chapter : BaseSpec { private User ...

V3 of the MVVM Light Toolkit was released during MIX10, after quite a long alpha stage. This post lists the new features in MVVM Light V3.

Compatibility

MVVM Light Toolkit V3 can be installed for the following tools and framework versions:

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C# 4 is getting a new feature called named parameters. Although this is a stand-alone feature, it is often used in conjunction with optional parameters. Last week when I was giving a presentation on C# 4, I got a question on a scenario regarding overload resolution that I had not considered before which yielded interesting results. Before I describe the scenario, a little background first. Named parameters is a well documented feature that works like this: suppose you have a method defined like this: ...