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• Silverlight Cream for February 23, 2011 -- #1051

  - by Dave Campbell

  In this Issue: Ian T. Lackey, Kevin Hoffman, Kunal Chowdhury, Jesse Liberty(-2-), Page Brooks, Deborah Kurata(-2-), and Paul Sheriff. Above the Fold: Silverlight: "Building a Radar Control in Silverlight–Part 2" Page Brooks WP7: "Reactive Drag and Drop Part 2" Jesse Liberty Expression Blend: "Simple RadioButtonList and / or CheckBoxList in Silverlight Using a Behavior" Ian T. Lackey Shoutouts: Kunal Chowdhury delivered a full day session on Silverlight at the Microsoft Imagine Cup Championship event in Mumbai... you can Download Microsoft Imagine Cup Session PPT on Silverlight Dennis Doomen has appeared in my blog any number of times... he's looking for some assistance: Get me on stage on the Developer Days 2011 Steve Wortham posted An Interview with Jeff Wilcox From SilverlightCream.com: Simple RadioButtonList and / or CheckBoxList in Silverlight Using a Behavior Ian T. Lackey bemoans the lack of a RadioButtonList or CheckBoxList, and jumps into Blend to show us how to make one using a behavior... and the code is available too! WP7 for iPhone and Android Developers - Introduction to XAML and Silverlight Continuing his series at SilvelightShow for iPhone and Android devs, Kevin Hoffman has part 2 up getting into the UI with an intro to XAML and Silverlight. Day 1: Working with Telerik Silverlight RadControls Kunal Chowdhury kicked my tires that I had missed his Telerik control series... He's detailing his experience getting up to speed with the Silverlight RadControls. Day 1 is intro, what there is, installing, stuff like that. Part 2 continues: Day 2: Working with BusyIndicator of Telerik Silverlight RadControls, followed (so far) by part 3: Day 3: Working with Masked TextBox of Telerik Silverlight RadControls Reactive Drag and Drop Part 2 Jesse Liberty has his 7th part about Rx up ... and the 2nd part of Reactive Drag and Drop, and oh yeah... it's for WP7 as well! Yet Another Podcast #25–Glenn Block / WCF Next Jesse Liberty has Glenn Block on stage for his Yet Another Podcast number 25... talking WCF with Glenn. Building a Radar Control in Silverlight–Part 2 Page Brooks has part 2 of his 'radar' control for Silverlight up... I don't know where I'd use this, but it's darned cool... and the live demo is amazing. Silverlight Charting: Setting Colors Deborah Kurata is looking at the charting controls now, and how to set colors. She begins with a previous post on charts and adds color definitions to that post. Silverlight Charting: Setting the Tooltip Deborah Kurata next gets into formatting the tooltip you can get when the user hovers over a chart to make it make more sense to your user 'Content' is NOT 'Text' in XAML Paul Sheriff discusses the Content property of XAML controls and how it can be pretty much any other XAML you want it to be, then goes on to show some nice examples. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• CODE PROJECT VIRTUAL TECH SUMMIT ON MOBILE DEVELOPMENT &ndash; ON DEMAND

  - by Tiago Salgado

  Who has not seen the Code Project's Tech Virtual Summit on Mobile Development, you can now see all the sessions on demand. The sessions are: The Mobile Development Landscape Android Push Notifications Beginning Android Flash Development Android for .NET/C# Developers Using MonoDroid iPhone 101: Introduction to iPhone and iOS Development Building Rich Mobile Apps with HTML5, CSS3 and JavaScript Building MVVM apps for Windows Phone 7 Using Panorama and Pivot Controls for WP7 apps Building Data Visualization Applications for Windows Phone 7 To access the sessions, you need to register at the following link: http://www.virtualtechsummits.com/Register.aspx?EventID=11

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• Daily tech links for .net and related technologies - June 1-3, 2010

  - by SanjeevAgarwal

  Daily tech links for .net and related technologies - June 1-3, 2010 Web Development Anti-Forgery Request Recipes For ASP.NET MVC And AJAX - Dixin ASP.NET MVC 2 Localization Complete Guide - Alex Adamyan Dynamically Structured ViewModels in ASP.NET MVC - Keith Brown ASP.NET MVC Time Planner is available at CodePlex - Gunnar Peipman Part 2 – A Cascading Hierarchical Field Template & Filter for Dynamic Data - Steve SharePoint Server 2010 Enterprise Content Management Resources - Andrew Connell Web...(read more)

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• Does hiding images on 404 error affect SEO?

  - by Question Overflow

  I have a dynamic website that allows registered users to upload and display images on the their profile page. As each user may upload less than the maximum limit of 20 images, there would be some "empty" images on the page. I am using javascript to hide these empty images. The loading of the profile page would generate a series of 404 errors depending on the number of empty images. Would these 404 errors affect the SEO of the page and the website?

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• New Themes New Benefits (WinForms)

  We believe that working hard on something can be great fun at the end when everything is done and the seeds have resulted in the sweetest fruits. This is the case with the new Theming Mechanism and the new Visual Style Builder which we introduced as of Q1 2010.   I am not going to dive into any details on the new concepts behind all this stuff, but will simply focus on the numbers: both in terms of loading speed and memory usage. As you may already know, the new approach we use to style our controls uses the so called Style Repository which stores style settings that can be reused throughout the whole theme. As a result, we have estimated that the size of our themes has been significantly reduced. For instance, the size of all XML files of the Desert theme sums up to 1.83 MB. The case with the new version of the Desert theme is drastically different. Despite the fact that the new theme consists of more XML files compared to the old, its size is only 707 KB!   Furthermore, we have performed a simple performance test since the common sense tells us that such a great improvement in terms of memory footprint should be followed by a great improvement in terms of speed. We have estimated that loading and applying the new Desert theme to a form containing all RadControls for WinForms takes roughly 30% less time compared to the same operation with the old version of the Desert theme. The following screenshots briefly demonstrate the scenario which we used to estimate the loading time difference between the old and the new Desert theme:     Here, the old Desert theme is applied to all controls on the Form which takes almost 1,3 seconds.     Applying the new Desert theme (based on the new Theming Mechanism) takes about 0,78 seconds.   On top of all these great improvements, we can add the fact that the new Visual Style Builder significantly reduces the time needed to style a control by entirely changing the approach compared to the old version of this tool. You can be sure that we have already prepared some great new stuff for Q1 2010 SP1 that will simplify things further so that designing themes with the new VSB will become more fun than ever!Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• New Themes New Benefits (WinForms)

  We believe that working hard on something can be great fun at the end when everything is done and the seeds have resulted in the sweetest fruits. This is the case with the new Theming Mechanism and the new Visual Style Builder which we introduced as of Q1 2010.   I am not going to dive into any details on the new concepts behind all this stuff, but will simply focus on the numbers: both in terms of loading speed and memory usage. As you may already know, the new approach we use to style our controls uses the so called Style Repository which stores style settings that can be reused throughout the whole theme. As a result, we have estimated that the size of our themes has been significantly reduced. For instance, the size of all XML files of the Desert theme sums up to 1.83 MB. The case with the new version of the Desert theme is drastically different. Despite the fact that the new theme consists of more XML files compared to the old, its size is only 707 KB!   Furthermore, we have performed a simple performance test since the common sense tells us that such a great improvement in terms of memory footprint should be followed by a great improvement in terms of speed. We have estimated that loading and applying the new Desert theme to a form containing all RadControls for WinForms takes roughly 30% less time compared to the same operation with the old version of the Desert theme. The following screenshots briefly demonstrate the scenario which we used to estimate the loading time difference between the old and the new Desert theme:     Here, the old Desert theme is applied to all controls on the Form which takes almost 1,3 seconds.     Applying the new Desert theme (based on the new Theming Mechanism) takes about 0,78 seconds.   On top of all these great improvements, we can add the fact that the new Visual Style Builder significantly reduces the time needed to style a control by entirely changing the approach compared to the old version of this tool. You can be sure that we have already prepared some great new stuff for Q1 2010 SP1 that will simplify things further so that designing themes with the new VSB will become more fun than ever!Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Hidden Formatting Troubles with STR() (SQL Spackle)

  Fill in another bit of your T-SQL knowledge about STR(). It right justifies, rounds, and controls the output width of columns. Sounds perfect but here's why you might not want to use it. Join SQL Backup’s 35,000+ customers to compress and strengthen your backups "SQL Backup will be a REAL boost to any DBA lucky enough to use it." Jonathan Allen. Download a free trial now.

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• Do keyword-based filenames and URLs really matter?

  - by Justin Scott

  We've developed a dynamic web application which uses URLs such as product.cfm?id=42 but our marketing team says we should use search friendly URLs and put our keywords into the URLs (so it would be product-name.cfm instead). Our developers tell us this will cost more money and take additional time. Is it worth the effort? How important is this to the search engines and will it impact our rankings?

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• Granular Clipboard Control in Oracle IRM

  - by martin.abrahams

  One of the main leak prevention controls that customers are looking for is clipboard control. After all, there is little point in controlling access to a document if authorised users can simply make unprotected copies by use of the cut and paste mechanism. Oddly, for such a fundamental requirement, many solutions only offer very simplistic clipboard control - and require the customer to make an awkward choice between usability and security. In many cases, clipboard control is simply an ON-OFF option. By turning the clipboard OFF, you disable one of the most valuable edit functions known to man. Try working for any length of time without copying and pasting, and you'll soon appreciate how valuable that function is. Worse, some solutions disable the clipboard completely - not just for the protected document but for all of the various applications you have open at the time. Normal service is only resumed when you close the protected document. In this way, policy enforcement bleeds out of the particular assets you need to protect and interferes with the entire user experience. On the other hand, turning the clipboard ON satisfies a fundamental usability requirement - but also makes it really easy for users to create unprotected copies of sensitive information, maliciously or otherwise. All they need to do is paste into another document. If creating unprotected copies is this simple, you have to question how much you are really gaining by applying protection at all. You may not be allowed to edit, forward, or print the protected asset, but all you need to do is create a copy and work with that instead. And that activity would not be tracked in any way. So, a simple ON-OFF control creates a real tension between usability and security. If you are only using IRM on a small scale, perhaps security can outweigh usability - the business can put up with the restriction if it only applies to a handful of important documents. But try extending protection to large numbers of documents and large user communities, and the restriction rapidly becomes really unwelcome. I am aware of one solution that takes a different tack. Rather than disable the clipboard, pasting is always permitted, but protection is automatically applied to any document that you paste into. At first glance, this sounds great - protection travels with the content. However, at any scale this model may not be so appealing once you've had to deal with support calls from users who have accidentally applied protection to documents that really don't need it - which would be all too easily done. This may help control leakage, but it also pollutes the system with documents that have policies applied with no obvious rhyme or reason, and it can seriously inconvenience the business by making non-sensitive documents difficult to access. And what policy applies if you paste some protected content into an already protected document? Which policy applies? There are no prizes for guessing that Oracle IRM takes a rather different approach. The Oracle IRM Approach Oracle IRM offers a spectrum of clipboard controls between the extremes of ON and OFF, and it leverages the classification-based rights model to give granular control that satisfies both security and usability needs. Firstly, we take it for granted that if you have EDIT rights, of course you can use the clipboard within a given document. Why would we force you to retype a piece of content that you want to move from HERE... to HERE...? If the pasted content remains in the same document, it is equally well protected whether it be at the beginning, middle, or end - or all three. So, the first point is that Oracle IRM always enables the clipboard if you have the right to edit the file. Secondly, whether we enable or disable the clipboard, we only affect the protected document. That is, you can continue to use the clipboard in the usual way for unprotected documents and applications regardless of whether the clipboard is enabled or disabled for the protected document(s). And if you have multiple protected documents open, each may have the clipboard enabled or disabled independently, according to whether you have Edit rights for each. So, even for the simplest cases - the ON-OFF cases - Oracle IRM adds value by containing the effect to the protected documents rather than to the whole desktop environment. Now to the granular options between ON and OFF. Thanks to our classification model, we can define rights that enable pasting between documents in the same classification - ie. between documents that are protected by the same policy. So, if you are working on this month's financial report and you want to pull some data from last month's report, you can simply cut and paste between the two documents. The two documents are classified the same way, subject to the same policy, so the content is equally safe in both documents. However, if you try to paste the same data into an unprotected document or a document in a different classification, you can be prevented. Thus, the control balances legitimate user requirements to allow pasting with legitimate information security concerns to keep data protected. We can take this further. You may have the right to paste between related classifications of document. So, the CFO might want to copy some financial data into a board document, where the two documents are sealed to different classifications. The CFO's rights may well allow this, as it is a reasonable thing for a CFO to want to do. But policy might prevent the CFO from copying the same data into a classification that is accessible to external parties. The above option, to copy between classifications, may be for specific classifications or open-ended. That is, your rights might enable you to go from A to B but not to C, or you might be allowed to paste to any classification subject to your EDIT rights. As for so many features of Oracle IRM, our classification-based rights model makes this type of granular control really easy to manage - you simply define that pasting is permitted between classifications A and B, but omit C. Or you might define that pasting is permitted between all classifications, but not to unprotected locations. The classification model enables millions of documents to be controlled by a few such rules. Finally, you MIGHT have the option to paste anywhere - such that unprotected copies may be created. This is rare, but a legitimate configuration for some users, some use cases, and some classifications - but not something that you have to permit simply because the alternative is too restrictive. As always, these rights are defined in user roles - so different users are subject to different clipboard controls as required in different classifications. So, where most solutions offer just two clipboard options - ON-OFF or ON-but-encrypt-everything-you-touch - Oracle IRM offers real granularity that leverages our classification model. Indeed, I believe it is the lack of a classification model that makes such granularity impractical for other IRM solutions, because the matrix of rules for controlling pasting would be impossible to manage - there are so many documents to consider, and more are being created all the time.

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• July, the 31 Days of SQL Server DMO’s – Day 24 (sys.dm_db_index_operational_stats)

  - by Tamarick Hill

  The sys.dm_db_index_operational_stats Dynamic Management Function returns information about the IO, locking, and access methods for the indexes that you currently have on your SQL Server Instance. This function takes four input parameters which are (1) database_id, (2) object_id, (3) index_id, and (4) partition_number. Let’s have a look at the results from this function against our AdventureWorks2012 database. This function returns a ton of columns, so not only will I not attempt to describe each of the columns, I wont even attempt to display all of them here. My query below will give you a subset of the columns returned from this function. SELECT database_id, object_id, index_id, partition_number, leaf_insert_count, leaf_delete_count, leaf_update_count, leaf_ghost_count, nonleaf_insert_count, nonleaf_delete_count, nonleaf_update_count, range_scan_count, forwarded_fetch_count, row_lock_count, row_lock_wait_count, page_lock_count, page_lock_wait_count, Index_lock_promotion_attempt_count, index_lock_promotion_count, page_compression_attempt_count, page_compression_success_count FROM sys.dm_db_index_operational_stats(db_id('AdventureWorks2012'), NULL, NULL, NULL) The first four columns in the result set represent the values that we passed in as our input parameters. If you use NULL’s as I did, then you will see results for every index on your system. I specified a database_id so my result set only shows those records pertaining to my AdventureWorks2012 database. The next columns in the result set provide you with information on how may inserts, deletes, or updates that have taken place on your leaf and nonleaf index levels. The nonleaf levels would refer to the intermediate and root index levels. In the middle of these you see a leaf_ghost_count column, which represents the number of records that have been logically deleted and marked as “ghosted”  and are waiting on the background ghost cleanup process to physically remove them. The range_scan_count column represents the number of range or table scans that have been performed against an index. The forwarded_fetch_count column represents the number of rows that were returned from a forwarding row pointer. The row_lock_count and row_lock_wait_count represent the number of row locks that have been requested for an index and the number of times SQL has had to wait on a row lock respectively. The page_lock_count and page_lock_wait_count represent the number of page locks that have been requested for an index and the number of times SQL has had to wait on a page lock respectively. The index_lock_promotion_attempt_count represents the number of times the database engine has attempted to promote a lock to the index level. The index_lock_promotion_count column displays how many times that index lock promotion was successful. Lastly the page_compression_attempt_count and page_compression_success_count represents how many times a page was attempted to be compressed and how many times the attempt was successful. As you can see there is a ton of information returned from this DMV. The DMV we reviewed on yesterday (sys.dm_db_index_usage_stats) provided you with good information on when and how indexes have been used, but this DMF takes an even deeper dive into these statistics. If you are interested in performing a very detailed analysis on the operational stats of your indexes, this is not only a good place to start, but more than likely the best place. For more information on this Dynamic Management Function, please see the below Books Online link: http://msdn.microsoft.com/en-us/library/ms174281.aspx Follow me on Twitter @PrimeTimeDBA

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• Silverlight Cream for February 14, 2011 -- #1047

  - by Dave Campbell

  In this Issue: Mohamed Mosallem, Tony Champion, Gill Cleeren, Laurent Bugnion, Deborah Kurata, Jesse Liberty(-2-), Tim Heuer, Mike Taulty, John Papa, Martin Krüger, and Jeremy Likness. Above the Fold: Silverlight: "Binding to a ComboBox in Silverlight : A Gotcha" Tony Champion WP7: "An Ultra Light Windows Phone 7 MVVM Framework" Jeremy Likness Shoutouts: Steve Wortham has a post up discussing Silverlight 5, HTML5, and what the future may bring From SilverlightCream.com: Silverlight 4.0 Tutorial (12 of N): Collecting Attendees Feedback using Windows Phone 7 Mohamed Mosallem is up to number 12 in his Silverlight tutorial series. He's continuing his RegistrationBooth app, but this time, he's building a WP7 app to give attendee feedback. Binding to a ComboBox in Silverlight : A Gotcha If you've tried to bind to a combobox in Silverlight, you've probably either accomplished this as I have (with help) by having it right once, and continuing, but Tony Champion takes the voodoo out of getting it all working. Getting ready for Microsoft Silverlight Exam 70-506 (Part 5) Gill Cleeren has Part 5 of his exam preparation post up on SilverlightShow. As with the others, he provides many external links to good information. Referencing a picture in another DLL in Silverlight and Windows Phone 7 Laurent Bugnion explains the pitfalls and correct way to reference an image from a dll... good info for loading images such as icons for Silverlight in general and WP7 also. Silverlight MVVM Commanding II Deborah Kurata has a part 2 up on MVVM Commanding. The first part covered the built-in commanding for controls that inherit from ButtonBase... this post goes beyond that into other Silverlight controls. Reactive Drag and Drop Part 1 This Drag and Drop with Rx post by Jesse Liberty is the 4th in his Rx series. He begins with a video from the Rx team and applies reactive programming to mouse movements. Yet Another Podcast #24–Reactive Extensions On the heels of his previous post on Rx, in his latest 'Yet Another Podcast', Jesse Liberty chats with Matthew Podwysocki and Bart De Smet about Reactive Extensions. Silverlight 4 February 2011 Update Released Today Tim Heuer announced the release of the February 2011 Silverlight 4 release. Check out Tim's post for information about what's contained in this release. Blend Bits 25–Templating Part 3 In his 3rd Templating tutorial in BlendBits, Mike Taulty demonstrates the 'Make into Control' option rather than the other way around. Silverlight TV 61: Expert Chat on Deep Zoom, Touch, and Windows Phone John Papa interviews David Kelley in the latest Silverlight TV... David is discussing touch in Silverlight and for WP7 and his WP7 apps in the marketplace. Simple Hyperlinkbutton style Martin Krüger has a cool Hyperlink style available at the Expression Gallery. Interesting visual for entertaining your users. An Ultra Light Windows Phone 7 MVVM Framework Jeremy Likness takes his knowledge of MVVM (Jounce), and WP7 and takes a better look at what he'd really like to have for a WP7 framework. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• A simple example of validation in ASP.Net applications

  - by nikolaosk

  I am going to start a new series of posts and I am going to cover in depth all the validation mechanisms/techniques/controls we have available in our ASP.Net applications. As many of you may know I am a Microsoft Certified Trainer and I will present this series of posts from a trainer's point of view. This series of posts will be helpful to all of novice/intermediate programmers who want to see all the tools available for validating data in ASP.Net applications. I am not going to try to convince...(read more)

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• Installing IIS 8 on Windows 8

  - by The Official Microsoft IIS Site

  In case you haven’t heard Windows 8 is now available. As a web developer I think one of the best reasons to upgrade to Windows 8 is that you can start testing IIS 8 right from your PC. This way if you don’t have a budget for a new server you can start to familiarize yourself with some of the new features. IIS 8 has some great new features such as Dynamic IP Restrictions an Application Initialization . However one of the best new features of IIS 8 enables you to throttle the CPU utilization for any...(read more)

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• Silverlight Cream for November 26, 2011 -- #1175

  - by Dave Campbell

  In this Issue: Michael Washington, Manas Patnaik, Jeff Blankenburg, Doug Mair, Jon Galloway, Richard Bartholomew, Peter Bromberg, Joel Reyes, Zeben Chen, Navneet Gupta, and Cathy Sullivan. Above the Fold: Silverlight: "Using ASP.NET PageMethods With Silverlight" Peter Bromberg WP7: "Leveraging Background Services and Agents in Windows Phone 7 (Mango)" Jon Galloway Metro/WinRT/Windows8: "Debugging Contracts using Windows Simulator" Cathy Sullivan LightSwitch: "LightSwitch: It Is About The Money (It Is Always About The Money)" Michael Washington Shoutouts: Michael Palermo's latest Desert Mountain Developers is up Michael Washington's latest Visual Studio #LightSwitch Daily is up From SilverlightCream.com:LightSwitch: It Is About The Money (It Is Always About The Money)Michael Washington has a very nice post up about LightSwitch apps in general and his opinion about the future use... based on what he and I have been up to, I tend to agree on all counts!Accessing Controls from DataGrid ColumnHeader – SilverlightManas Patnaik's latest post is about using the VisualTreeHelper class to iterate through the visual tree to find the controls you need ... including sample code31 Days of Mango | Day #18: Using Sample DataJeff Blankenburg's Day 18 in his 31-Day Mango quest is on Sample Data using Expression Blend, and he begins with great links to his other Blend posts followed by a nice sample data tutorial and source31 Days of Mango | Day #19: Tilt EffectsDoug Mair returns to the reigns of Jeff's 31-Days series with number 19 which is all about Tilt Effects ... as seen in the Phone application when you select a user... Doug shows how to add this effect to your appLeveraging Background Services and Agents in Windows Phone 7 (Mango)Jon Galloway has a WP7 post up discussing Background Services and how they all fit together... he's got a great diagram of that as an overview then really nice discussion of each followed up by his slides from DevConnections, and codeNetflix on Windows 8This one isn't C#/XAML, but Richard Bartholomew has a Netflix on Windows 8 app running that bears noticeUsing ASP.NET PageMethods With SilverlightPeter Bromberg has a post up demonstrating calling PageMethods from a Silverlight app using the ScriptManager controlAWESOME Windows Phone Power ToolJoel Reyes announced the release of a full-featured tool for side-loading apps to your WP7 device... available at codeplexMicrosoft Windows Simulator Rotation and Resolution EmulationZeben Chen discusses the Windows 8 Simulator a bit deeper with this code-laden post showing how to look at roation and orientation-aware apps and resolution.First look at Windows SimulatorNavneet Gupta has a great into post to using the simulator in VS2011 for Windows 8 apps. Four things you really need this for: Touch Emulation, Rotation, Different target resolutions, and ContractsDebugging Contracts using Windows SimulatorCathy Sullivan shows how to debug W8 Contracts in VS2011... why you ask? because when you hit one in the debugger, the target app disappears.. but enter the simulator... check it outStay in the 'Light!Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCreamJoin me @ SilverlightCream | Phoenix Silverlight User GroupTechnorati Tags:Silverlight    Silverlight 3    Silverlight 4    Windows PhoneMIX10

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• How to use Ajax : CollapsiblePanelExtender in ASP.NET

  - by SAMIR BHOGAYTA

  //It is simple method, Other properties will be set which you want Step 1: Take one panel and all the content you want to collapse put into this panel. Step 2: Set the Collapsed Property true. Step 3: ExpandControlID/CollapseControlID : The Controls that will expand or collapse the panel on a click, respectively. If these values are the same, the panel will automatically toggle its state on each click. Step 4: TargetControlID is PanelID Step 5: Select Panel and Set the Property SuppressPostBack="True"

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• Ruby on Rails free books

  - by Madhan ayyasamy

  The following links has ruby on rails tutorials, you can download directly from there website, its fully free of cost..:)Beginning Ruby: From Novice to Professional Building Dynamic Web 2.0 Websites with Ruby on RailsRuby on Rails For DummiesAgile Web Development with RailsThe Ruby Way: Solutions and Techniques in Ruby ProgrammingBeginning Ruby on RailsRails RecipesRails CookbookAjax on RailsThe Art of Rails Programmer to Programmer

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• Silverlight for Everyone!!

  - by subodhnpushpak

  Someone asked me to compare Silverlight / HTML development. I realized that the question can be answered in many ways: Below is the high level comparison between a HTML /JavaScript client and Silverlight client and why silverlight was chosen over HTML / JavaScript client (based on type of users and major functionalities provided): 1. For end users Browser compatibility Silverlight is a plug-in and requires installation first. However, it does provides consistent look and feel across all browsers. For HTML / DHTML, there is a need to tweak JavaScript for each of the browser supported. In fact, tags like <span> and <div> works differently on different browser / version. So, HTML works on most of the systems but also requires lot of efforts coding-wise to adhere to all standards/ browsers / versions. Out of browser support No support in HTML. Third party tools like  Google gears offers some functionalities but there are lots of issues around platform and accessibility. Out of box support for out-of-browser support. provides features like drag and drop onto application surface. Cut and copy paste in HTML HTML is displayed in browser; which, in turn provides facilities for cut copy and paste. Silverlight (specially 4) provides rich features for cut-copy-paste along with full control over what can be cut copy pasted by end users and .advanced features like visual tree printing. Rich user experience HTML can provide some rich experience by use of some JavaScript libraries like JQuery. However, extensive use of JavaScript combined with various versions of browsers and the supported JavaScript makes the solution cumbersome. Silverlight is meant for RIA experience. User data storage on client end In HTML only small amount of data can be stored that too in cookies. In Silverlight large data may be stored, that too in secure way. This increases the response time. Post back In HTML / JavaScript the post back can be stopped by use of AJAX. Extensive use of AJAX can be a bottleneck as browser stack is used for the calls. Both look and feel and data travel over network.                           In Silverlight everything run the client side. Calls are made to server ONLY for data; which also reduces network traffic in long run. 2. For Developers Coding effort HTML / JavaScript can take considerable amount to code if features (requirements) are rich. For AJAX like interfaces; knowledge of third party kits like DOJO / Yahoo UI / JQuery is required which has steep learning curve. ASP .Net coding world revolves mostly along <table> tags for alignments whereas most popular tools provide <div> tags; which requires lots of tweaking. AJAX calls can be a bottlenecks for performance, if the calls are many. In Silverlight; coding is in C#, which is managed code. XAML is also very intuitive and Blend can be used to provide look and feel. Event handling is much clean than in JavaScript. Provides for many clean patterns like MVVM and composable application. Each call to server is asynchronous in silverlight. AJAX is in built into silverlight. Threading can be done at the client side itself to provide for better responsiveness; etc. Debugging Debugging in HTML / JavaScript is difficult. As JavaScript is interpreted; there is NO compile time error handling. Debugging in Silverlight is very helpful. As it is compiled; it provides rich features for both compile time and run time error handling. Multi -targeting browsers HTML / JavaScript have different rendering behaviours in different browsers / and their versions. JavaScript have to be written to sublime the differences in browser behaviours. Silverlight works exactly the same in all browsers and works on almost all popular browser. Multi-targeting desktop No support in HTML / JavaScript Silverlight is very close to WPF. Bot the platform may be easily targeted while maintaining the same source code. Rich toolkit HTML /JavaScript have limited toolkit as controls Silverlight provides a rich set of controls including graphs, audio, video, layout, etc. 3. For Architects Design Patterns Silverlight provides for patterns like MVVM (MVC) and rich (fat)  client architecture. This segregates the "separation of concern" very clearly. Client (silverlight) does what it is expected to do and server does what it is expected of. In HTML / JavaScript world most of the processing is done on the server side. Extensibility Silverlight provides great deal of extensibility as custom controls may be made. Extensibility is NOT restricted by browser but by the plug-in silverlight runs in. HTML / JavaScript works in a certain way and extensibility is generally done on the server side rather than client end. Client side is restricted by the limitations of the browser. Performance Silverlight provides localized storage which may be used for cached data storage. this reduces the response time. As processing can be done on client side itself; there is no need for server round trips. this decreases the round about time. Look and feel of the application is downloaded ONLY initially, afterwards ONLY data is fetched form the server. Security Silverlight is compiled code downloaded as .XAP; As compared to HTML / JavaScript, it provides more secure sandboxed approach. Cross - scripting is inherently prohibited in silverlight by default. If proper guidelines are followed silverlight provides much robust security mechanism as against HTML / JavaScript world. For example; knowing server Address in obfuscated JavaScript is easier than a compressed compiled obfuscated silverlight .XAP file. Some of these like (offline and Canvas support) will be available in HTML5. However, the timelines are not encouraging at all. According to Ian Hickson, editor of the HTML5 specification, the specification to reach the W3C Candidate Recommendation stage during 2012, and W3C Recommendation in the year 2022 or later. see http://en.wikipedia.org/wiki/HTML5 for details. The above is MY opinion. I will love to hear yours; do let me know via comments. Technorati Tags: Silverlight

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• BAM Data Control in multiple ADF Faces Components

  - by [email protected]

  As we know Oracle BAM data control instance sharing is not supported.When two or more ADF Faces components must display the same data, and are bound to the same Oracle BAM data control definition, we have to make sure that we wrap each ADF Faces component in an ADF task flow, and set the Data Control Scope to isolated. This blog will show a small sample to demonstrate this. In this sample we will create a Pie and Bar using same BAM DC, such that both components use same Data control but have isolated scope.This sample can be downloaded  fromSample1.zip Set-up: Create a BAM data control using employees DO (sample) Steps: Right click on View Controller project and select "New->ADF Task Flow" Check "Create Bounded Task Flow" and give some meaningful name (ex:EmpPieTF.xml ) to the TaskFlow(TF) and click on "OK"CreateTF.bmpFrom the "Components Palette", drag and drop "View" into the task flow diagram. Give a meaningful name to the view. Double Click and Click "Ok" for  "Create New JSF Page Fragment" From "Data Controls" drag and drop "Employees->Query"  into this jsff page as "Graph->Pie" (Pie: Sales_Number and Slices: Salesperson) Repeat step 1 through 4 for another Task Flow (ex: EmpBarTF). From "Data Controls" drag and drop "Employees->Query"  into this jsff page as "Graph->Bar" (Bars :Sales_Number and X-axis : Salesperson). Open the Taskflow created in step 2. In the Structure Pane, right click on "Task Flow Definition -EmpPieTF" Click "Insert inside Task Flow Definition - EmpPieTF -> ADF Task Flow -> Data Control Scope". Click "OK"TFDCScope.bmpFor the "Data Control Scope", In the Property Inspector ->General section, change data control scope from Shared to Isolated. Repeat step 8 through 11 for the 2nd Task flow created. Now create a new jspx page example: Main.jspxDrag and drop both the Task flows (ex: "EmpPieTF" and "EmpBarTF") as regions. Surround with panel components as needed.Run the page Main.jspxMainPage.bmpNow when the page runs although both components are created using same Data control the bindings are not shared and each component will have a separate instance of the data control.

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• Why some consider static analysis a testing and some do not?

  - by user970696

  Preparing myself also to ISTQB certification, I found they call static analysis actually as a static testing, while some engineering book distinct between static analysis and testing, which is the dynamic activity. I tent to think that static analysis is not a testing in the true sense as it does not test, it checks/verifies. But sure I would love to hear opinion of the true experts here. Thank you

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• SQL Server 2008 : Accessing Audit Details

  Learn how to use the SQL Server 2008 catalog view and dynamic management view to access the audit details of existing server and database level audits.

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• SQL Server 2008 : Accessing Audit Details

  Learn how to use the SQL Server 2008 catalog view and dynamic management view to access the audit details of existing server and database level audits.

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• Oracle’s New Release of Primavera Contract Management

  Controlling your construction project's plan, budget, forecast costs, and deliverables is vital to the success of your projects and the future of your business. Tune into this conversation with Krista Lambert, Senior Product Manager, for the Oracle Primavera Global Business Unit to learn about the latest release of Oracle’s Primavera Contract Management version 13 and how this document management, job cost and field controls solution keeps construction projects on schedule and on-budget through complete project control.

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• How can I keep the cpu temp low?

  - by Newton

  I have an HP pavilion dv7, I'm using ubuntu 12.04 so the overheating problem with sandybridge cpu is a lot better. However my laptop is still becoming too hot to keep on my legs. The problem is that the fan wait too much before starting, so the medium temp is too hight. When I'm using windows 7 the laptop is room-temperature cold, I've absolutely no problem. On windows the fan is always spinning very low & very silently so the heat is continuously removed, without reaching an unconfortable temp. How can I force the computer to act like that also on ubuntu? PS The bios can't let me control this kind of thing, and this is my experience with lm-sensors and fancontrol al@notebook:~$ sudo sensors-detect [sudo] password for al: # sensors-detect revision 5984 (2011-07-10 21:22:53 +0200) # System: Hewlett-Packard HP Pavilion dv7 Notebook PC (laptop) # Board: Hewlett-Packard 1800 This program will help you determine which kernel modules you need to load to use lm_sensors most effectively. It is generally safe and recommended to accept the default answers to all questions, unless you know what you're doing. Some south bridges, CPUs or memory controllers contain embedded sensors. Do you want to scan for them? This is totally safe. (YES/no): y Module cpuid loaded successfully. Silicon Integrated Systems SIS5595... No VIA VT82C686 Integrated Sensors... No VIA VT8231 Integrated Sensors... No AMD K8 thermal sensors... No AMD Family 10h thermal sensors... No AMD Family 11h thermal sensors... No AMD Family 12h and 14h thermal sensors... No AMD Family 15h thermal sensors... No AMD Family 15h power sensors... No Intel digital thermal sensor... Success! (driver `coretemp') Intel AMB FB-DIMM thermal sensor... No VIA C7 thermal sensor... No VIA Nano thermal sensor... No Some Super I/O chips contain embedded sensors. We have to write to standard I/O ports to probe them. This is usually safe. Do you want to scan for Super I/O sensors? (YES/no): y Probing for Super-I/O at 0x2e/0x2f Trying family `National Semiconductor/ITE'... No Trying family `SMSC'... No Trying family `VIA/Winbond/Nuvoton/Fintek'... No Trying family `ITE'... No Probing for Super-I/O at 0x4e/0x4f Trying family `National Semiconductor/ITE'... Yes Found unknown chip with ID 0x8518 Some hardware monitoring chips are accessible through the ISA I/O ports. We have to write to arbitrary I/O ports to probe them. This is usually safe though. Yes, you do have ISA I/O ports even if you do not have any ISA slots! Do you want to scan the ISA I/O ports? (YES/no): y Probing for `National Semiconductor LM78' at 0x290... No Probing for `National Semiconductor LM79' at 0x290... No Probing for `Winbond W83781D' at 0x290... No Probing for `Winbond W83782D' at 0x290... No Lastly, we can probe the I2C/SMBus adapters for connected hardware monitoring devices. This is the most risky part, and while it works reasonably well on most systems, it has been reported to cause trouble on some systems. Do you want to probe the I2C/SMBus adapters now? (YES/no): y Using driver `i2c-i801' for device 0000:00:1f.3: Intel Cougar Point (PCH) Module i2c-i801 loaded successfully. Module i2c-dev loaded successfully. Next adapter: i915 gmbus disabled (i2c-0) Do you want to scan it? (YES/no/selectively): y Next adapter: i915 gmbus ssc (i2c-1) Do you want to scan it? (YES/no/selectively): y Next adapter: i915 GPIOB (i2c-2) Do you want to scan it? (YES/no/selectively): y Next adapter: i915 gmbus vga (i2c-3) Do you want to scan it? (YES/no/selectively): y Next adapter: i915 GPIOA (i2c-4) Do you want to scan it? (YES/no/selectively): y Next adapter: i915 gmbus panel (i2c-5) Do you want to scan it? (YES/no/selectively): y Client found at address 0x50 Probing for `Analog Devices ADM1033'... No Probing for `Analog Devices ADM1034'... No Probing for `SPD EEPROM'... No Probing for `EDID EEPROM'... Yes (confidence 8, not a hardware monitoring chip) Next adapter: i915 GPIOC (i2c-6) Do you want to scan it? (YES/no/selectively): y Client found at address 0x50 Probing for `Analog Devices ADM1033'... No Probing for `Analog Devices ADM1034'... No Probing for `SPD EEPROM'... No Probing for `EDID EEPROM'... Yes (confidence 8, not a hardware monitoring chip) Next adapter: i915 gmbus dpc (i2c-7) Do you want to scan it? (YES/no/selectively): y Next adapter: i915 GPIOD (i2c-8) Do you want to scan it? (YES/no/selectively): y Next adapter: i915 gmbus dpb (i2c-9) Do you want to scan it? (YES/no/selectively): y Next adapter: i915 GPIOE (i2c-10) Do you want to scan it? (YES/no/selectively): y Next adapter: i915 gmbus reserved (i2c-11) Do you want to scan it? (YES/no/selectively): y Next adapter: i915 gmbus dpd (i2c-12) Do you want to scan it? (YES/no/selectively): y Next adapter: i915 GPIOF (i2c-13) Do you want to scan it? (YES/no/selectively): y Next adapter: DPDDC-B (i2c-14) Do you want to scan it? (YES/no/selectively): y Now follows a summary of the probes I have just done. Just press ENTER to continue: Driver `coretemp': * Chip `Intel digital thermal sensor' (confidence: 9) To load everything that is needed, add this to /etc/modules: #----cut here---- # Chip drivers coretemp #----cut here---- If you have some drivers built into your kernel, the list above will contain too many modules. Skip the appropriate ones! Do you want to add these lines automatically to /etc/modules? (yes/NO)y Successful! Monitoring programs won't work until the needed modules are loaded. You may want to run 'service module-init-tools start' to load them. Unloading i2c-dev... OK Unloading i2c-i801... OK Unloading cpuid... OK al@notebook:~$ sudo /etc/init.d/module-init-tools restart Rather than invoking init scripts through /etc/init.d, use the service(8) utility, e.g. service module-init-tools restart Since the script you are attempting to invoke has been converted to an Upstart job, you may also use the stop(8) and then start(8) utilities, e.g. stop module-init-tools ; start module-init-tools. The restart(8) utility is also available. module-init-tools stop/waiting al@notebook:~$ sudo service module-init-tools restart stop: Unknown instance: module-init-tools stop/waiting al@notebook:~$ sudo service module-init-tools start module-init-tools stop/waiting al@notebook:~$ sudo pwmconfig # pwmconfig revision 5857 (2010-08-22) This program will search your sensors for pulse width modulation (pwm) controls, and test each one to see if it controls a fan on your motherboard. Note that many motherboards do not have pwm circuitry installed, even if your sensor chip supports pwm. We will attempt to briefly stop each fan using the pwm controls. The program will attempt to restore each fan to full speed after testing. However, it is ** very important ** that you physically verify that the fans have been to full speed after the program has completed. /usr/sbin/pwmconfig: There are no pwm-capable sensor modules installed Is my case too desperate?

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• Voxel Face Crawling (Mesh simplification, possibly using greedy)

  - by Tim Winter

  This is in regards to a Minecraft-like terrain engine. I store blocks in chunks (16x256x16 blocks in a chunk). When I generate a chunk, I use multiple procedural techniques to set the terrain and to place objects. While generating, I keep one 1D array for the full chunk (solid or not) and a separate 1D array of solid blocks. After generation, I iterate through the solid blocks checking their neighbors so I only generate block faces that don't have solid neighbors. I store which faces to generate in their own list (that's 6 lists, one per possible face). When rendering a chunk, I render all lists in the camera's current chunk and only the lists facing the camera in all other chunks. Using a 2D atlas with this little shader trick Andrew Russell suggested, I want to merge similar faces together completely. That is, if they are in the same list (same normal), are adjacent to each other, have the same light level, etc. My assumption would be to have each of the 6 lists sorted by the axis they rest on, then by the other two axes (the list for the top of a block would be sorted by it's Y value, then X, then Z). With this alone, I could quite easily merge strips of faces, but I'm looking to merge more than just strips together when possible. I've read up on this greedy meshing algorithm, but I am having a lot of trouble understanding it. To even use it, I would think I'd need to perform a type of flood-fill per sorted list to get the groups of merge-able faces. Then, per group, perform the greedy algorithm. It all sounds awfully expensive if I would ever want dynamic terrain/lighting after initial generation. So, my question: To perform merging of faces as described (ignoring whether it's a bad idea for dynamic terrain/lighting), is there perhaps an algorithm that is simpler to implement? I would also quite happily accept an answer that walks me through the greedy algorithm in a much simpler way (a link or explanation). I don't mind a slight performance decrease if it's easier to implement or even if it's only a little better than just doing strips. I worry that most algorithms focus on triangles rather than quads and using a 2D atlas the way I am, I don't know that I could implement something triangle based with my current skills. PS: I already frustum cull per chunk and as described, I also cull faces between solid blocks. I don't occlusion cull yet and may never.

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• System Variables, Stored Procedures or Functions for Meta Data

  - by BuckWoody

  Whenever you want to know something about SQL Server’s configuration, whether that’s the Instance itself or a database, you have a few options. If you want to know “dynamic” data, such as how much memory or CPU is consumed or what a particular query is doing, you should be using the Dynamic Management Views (DMVs) that you can read about here: http://msdn.microsoft.com/en-us/library/ms188754.aspx  But if you’re looking for how much memory is installed on the server, the version of the Instance, the drive letters of the backups and so on, you have other choices. The first of these are system variables. You access these with a SELECT statement, and they are useful when you need a discrete value for use, say in another query or to put into a table. You can read more about those here: http://msdn.microsoft.com/en-us/library/ms173823.aspx You also have a few stored procedures you can use. These often bring back a lot more data, pre-formatted for the screen. You access these with the EXECUTE syntax. It is a bit more difficult to take the data they return and get a single value or place the results in another table, but it is possible. You can read more about those here: http://msdn.microsoft.com/en-us/library/ms187961.aspx Yet another option is to use a system function, which you access with a SELECT statement, which also brings back a discrete value that you can use in a test or to place in another table. You can read about those here: http://msdn.microsoft.com/en-us/library/ms187812.aspx  By the way, many of these constructs simply query from tables in the master or msdb databases for the Instance or the system tables in a user database. You can get much of the information there as well, and there are even system views in each database to show you the meta-data dealing with structure – more on that here: http://msdn.microsoft.com/en-us/library/ms186778.aspx  Some of these choices are the only way to get at a certain piece of data. But others overlap – you can use one or the other, they both come back with the same data. So, like many Microsoft products, you have multiple ways to do the same thing. And that’s OK – just research what each is used for and how it’s intended to be used, and you’ll be able to select (pun intended) the right choice. Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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