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  • 5 Steps to getting started with IronRuby

    - by Eric Nelson
    IronRuby is a Open Source implementation of the Ruby programming language for .NET, heavily relying on Microsoft's Dynamic Language Runtime. The project's #1 goal is to be a true Ruby implementation, meaning it runs existing Ruby code. Check out this summary of using the Ruby standard library and 3rd party libraries in IronRuby. IronRuby has tight integration with .NET, so any .NET types can be used from IronRuby and the IronRuby runtime can be embedded into any .NET application. These 5 steps should get you nicely up and running on IronRuby – OR … you could just watch a video session from the lead developer which took place earlier this month (March 2010 - 60mins). But the 5 steps will be quicker :-) Step 1 – Install IronRuby :-) You can install IronRuby automatically using an MSI or manually. For simplicity I would recommend the MSI install. TIP: As of the 25th of March IronRuby has not quite shipped. The download above is a Release Candidate (RC) which means it is still undergoing final testing by the team. You will need to uninstall this version (RC3) once the final release is available. The good news is that uninstalling IronRuby RC3 will work without a hitch as the MSI does relatively little. Step 2 – Install an IronRuby friendly editor You will need to Install an editor to work with IronRuby as there is no designer support for IronRuby inside Visual Studio. There are many editors to choose from but I would recommend you either went with: SciTE (Download the MSI): This is a lightweight text editor which is simple to get up and running. SciTE understands Ruby syntax and allows you to easily run IronRuby code within the editor with a small change to the config file. SharpDevelop 3.2 (Download the MSI): This is an open source development environment for C#, VB, Boo and now IronRuby. IronRuby support is new but it does include integrated debugging. You might also want to check out the main site for SharpDevelop. TIP: There are commercial tools for Ruby development which offer richer support such as intellisense.. They can be coerced into working with IronRuby. A good one to start with is RubyMine which needs some small changes to make it work with IronRuby. Step 3 – Run the IronRuby Tutorial Run through the IronRuby tutorial which is included in the IronRuby download. It covers off the basics of the Ruby languages and how IronRuby integrates with .NET. In a typical install it will end up at C:\Program Files\IronRuby 0.9.4.0\Samples\Tutorial. Which will give you the tutorial implemented in .NET and Ruby. TIP: You might also want to check out these two introductory posts Using IronRuby and .NET to produce the ‘Hello World of WPF’ and What's IronRuby, and how do I put it on Rails? Step 4 – Get some good books to read Get a great book on Ruby and IronRuby. There are several free ebooks on Ruby which will help you learn the language. The little book of Ruby is a good place to start. I would also recommend you purchase IronRuby Unleashed (Buy on Amazon UK | Buy on Amazon USA). You might also want to check out this mini-review. Other books are due out soon including IronRuby in Action. TIP: Also check out the official documentation for using .NET from IronRuby. Step 5 – Keep an eye on the team blogs Keep an eye on the IronRuby team blogs including Jimmy Schementi, Jim Deville and Tomas Matousek (full list) TIP: And keep a watch out for the final release of IronRuby – due anytime soon!

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  • Gridview tooltip

    - by Geetha
    Hi All, if (e.Row.RowType == DataControlRowType.Header) { int i = 0; foreach (TableCell cell in e.Row.Cells) { cell.Attributes.Add("title", reason[i]); i++; } } i am using this code to show tool tip in grid view.Tool tip is getting displayed when the page loads but after a click event the tool tip is not working.

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  • what else to do to establish many-to-many associations in Ruby on Rails? thanks!

    - by john
    Hi, I have two classes and I want to establish a many-to-many assications, here is the code: class Category < ActiveRecord::Base has_and_belongs_to_many :events has_and_belongs_to_many :tips end class Tip < ActiveRecord::Base has_and_belongs_to_many :categories However, I kept getting the following errors and I would appreciate it if some one could educate me what is going wrong: PGError: ERROR: relation "categories_tips" does not exist : SELECT "categories".id FROM "categories" INNER JOIN "categories_tips" ON "categories".id = "categories_tips".category_id WHERE ("categories_tips".tip_id = NULL ) the viewer part: 4: <%= text_field :tip, :title %></label></p> 5: 6: <p><label>Categories<br/> 7: <%= select_tag('categories[]', options_for_select(Category.find(:all).collect {|c| [c.name, c.id] }, @tip.category_ids), :multiple => true ) %></label></p> 8: 9: <p><label>Location<br/> 10: <%= text_field_with_auto_complete :tip, :abstract %></label></p>

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  • Silverlight Cream for April 26, 2010 -- #848

    - by Dave Campbell
    In this Issue: Viktor Larsson, Mike Snow(-2-), Jeff Brand, Marlon Grech(-2-, -3-), Jonathan van de Veen, Phil Middlemiss. Shoutout: Justin Angel wants everyone to know he is Joining the Vertigo Team!... congratulations, Justin! From SilverlightCream.com: Learning Silverlight – Advanced Color Animations Viktor Larsson is demonstrating small pieces of Silverlight he's picked upon in the course of his work project. This first one is on ColorAnimations using KeyFrames Silverlight Tip of the Day #4 – Enabling Out of Browser Applications Mike Snow has Tip #4 up and it's all about OOB... from what you have to do to what your user sees, including how to check to see if you're running OOB... source project included. Silverlight Tip of the Day #5 – Debugging Out of Browser Applications Following a fine tradition he started with his first series, Mike Snow is putting out more than one Tip per day :) ... Number 5 is up and is all about debugging OOB apps. Simplifying Page Transitions in Windows Phone 7 Silverlight Applications Jeff Brand has a WP7 post up discussing Page Transitions. He first discusses the most common brute-force method, then moves into the TransitioningContentControl from the Toolkit. An introduction to MEFedMVVM – PART 1 Marlon Grech, Peter O’Hanlon, and Glenn Block worked together to produce an MEF and MVVM library that works for WPF and Silverlight and allows Design-time goodness and a loosely-coupled bridge between the View and ViewModel ... and it's on CodePlex ... they're also looking for comments/additions, so check it out. Leveraging MEFedMVVM ExportViewModel – MEFedMVVM Part 2 In Part 2, Marlon Grech demonstrates using MEFedMVVM and shows off some of the basics such as Importing services, Design-Time data and DataContextAware ViewModels IContextAware services to bridge the gap between the View and the ViewModel – MEFedMVVM Part 3 Marlon Grech's 3rd post about MEFedMVVM is about IContextAwareService -- bridging the gap betwen the View and ViewModel -- a service that knows about it's context. Building a Web Setup that configures your Silverlight application Jonathan van de Veen has a post up at SilverlightShow on using a Web Setup Project to configure your Silverlight when things startup... if you're not familiar with doing this... take note! A Chrome and Glass Theme - Part 4 Phil Middlemiss has part 4 of his great tutorial series up on creating a theme in Expression Blend ... this time tackling the listbox. 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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  • JavaOne Session Report: “50 Tips in 50 Minutes for GlassFish Fans”

    - by Janice J. Heiss
    At JavaOne 2012 on Monday, Oracle’s Engineer Chris Kasso, and Technology Evangelist Arun Gupta, presented a head-spinning session (CON4701) in which they offered 50 tips for GlassFish fans. Kasso and Gupta alternated back and forth with each presenting 10 tips at a time. An audience of about (appropriately) 50 attentive and appreciative developers was on hand in what has to be one of the most information-packed sessions ever at JavaOne!Aside: I experienced one of the quiet joys of JavaOne when, just before the session began, I spotted Java Champion and JavaOne Rock Star Adam Bien sitting nearby – Adam is someone I have been fortunate to know for many years.GlassFish is a freely available, commercially supported Java EE reference implementation. The session prioritized quantity of tips over depth of information and offered tips that are intended for both seasoned and new users, that are meant to increase the range of functional options available to GlassFish users. The focus was on lesser-known dimensions of GlassFish. Attendees were encouraged to pursue tips that contained new information for them. All 50 tips can be accessed here.Below are several examples of more elaborate tips and a final practical tip on how to get in touch with these folks. Tip #1: Using the login Command * To execute a remote command with asadmin you must provide the admin's user name and password.* The login command allows you to store the login credentials to be reused in subsequent commands.* Can be logged into multiple servers (distinguish by host and port). Example:     % asadmin --host ouch login     Enter admin user name [default: admin]>     Enter admin password>     Login information relevant to admin user name [admin]     for host [ouch] and admin port [4848] stored at     [/Users/ckasso/.asadminpass] successfully.     Make sure that this file remains protected.     Information stored in this file will be used by     asadmin commands to manage the associated domain.     Command login executed successfully.     % asadmin --host ouch list-clusters     c1 not running     Command list-clusters executed successfully.Tip #4: Using the AS_DEBUG Env Variable* Environment variable to control client side debug output* Exposes: command processing info URL used to access the command:                           http://localhost:4848/__asadmin/uptime Raw response from the server Example:   % export AS_DEBUG=true  % asadmin uptime  CLASSPATH= ./../glassfish/modules/admin-cli.jar  Commands: [uptime]  asadmin extension directory: /work/gf-3.1.2/glassfish3/glassfish/lib/asadm      ------- RAW RESPONSE  ---------   Signature-Version: 1.0   message: Up 7 mins 10 secs   milliseconds_value: 430194   keys: milliseconds   milliseconds_name: milliseconds   use-main-children-attribute: false   exit-code: SUCCESS  ------- RAW RESPONSE  ---------Tip #11: Using Password Aliases * Some resources require a password to access (e.g. DB, JMS, etc.).* The resource connector is defined in the domain.xml.Example:Suppose the DB resource you wish to access requires an entry like this in the domain.xml:     <property name="password" value="secretp@ssword"/>But company policies do not allow you to store the password in the clear.* Use password aliases to avoid storing the password in the domain.xml* Create a password alias:     % asadmin create-password-alias DB_pw_alias     Enter the alias password>     Enter the alias password again>     Command create-password-alias executed successfully.* The password is stored in domain's encrypted keystore.* Now update the password value in the domain.xml:     <property name="password" value="${ALIAS=DB_pw_alias}"/>Tip #21: How to Start GlassFish as a Service * Configuring a server to automatically start at boot can be tedious.* Each platform does it differently.* The create-service command makes this easy.   Windows: creates a Windows service Linux: /etc/init.d script Solaris: Service Management Facility (SMF) service * Must execute create-service with admin privileges.* Can be used for the DAS or instances* Try it first with the --dry-run option.* There is a (unsupported) _delete-serverExample:     # asadmin create-service domain1     The Service was created successfully. Here are the details:     Name of the service:application/GlassFish/domain1     Type of the service:Domain     Configuration location of the service:/work/gf-3.1.2.2/glassfish3/glassfish/domains     Manifest file location on the system:/var/svc/manifest/application/GlassFish/domain1_work_gf-3.1.2.2_glassfish3_glassfish_domains/Domain-service-smf.xml.     You have created the service but you need to start it yourself. Here are the most typical Solaris commands of interest:     * /usr/bin/svcs  -a | grep domain1  // status     * /usr/sbin/svcadm enable domain1 // start     * /usr/sbin/svcadm disable domain1 // stop     * /usr/sbin/svccfg delete domain1 // uninstallTip #34: Posting a Command via REST* Use wget/curl to execute commands on the DAS.Example:  Deploying an application   % curl -s -S \       -H 'Accept: application/json' -X POST \       -H 'X-Requested-By: anyvalue' \       -F id=@/path/to/application.war \       -F force=true http://localhost:4848/management/domain/applications/application* Use @ before a file name to tell curl to send the file's contents.* The force option tells GlassFish to force the deployment in case the application is already deployed.* Use wget/curl to execute commands on the DAS.Example:  Deploying an application   % curl -s -S \       -H 'Accept: application/json' -X POST \       -H 'X-Requested-By: anyvalue' \       -F id=@/path/to/application.war \       -F force=true http://localhost:4848/management/domain/applications/application* Use @ before a file name to tell curl to send the file's contents.* The force option tells GlassFish to force the deployment in case the application is already deployed.Tip #46: Upgrading to a Newer Version * Upgrade applications and configuration from an earlier version* Upgrade Tool: Side-by-side upgrade– GUI: asupgrade– CLI: asupgrade --c– What happens ?* Copies older source domain -> target domain directory* asadmin start-domain --upgrade* Update Tool and pkg: In-place upgrade– GUI: updatetool, install all Available Updates– CLI: pkg image-update– Upgrade the domain* asadmin start-domain --upgradeTip #50: How to reach us?* GlassFish Forum: http://www.java.net/forums/glassfish/glassfish* [email protected]* @glassfish* facebook.com/glassfish* youtube.com/GlassFishVideos* blogs.oracle.com/theaquariumArun Gupta acknowledged that their method of presentation was experimental and actively solicited feedback about the session. The best way to reach them is on the GlassFish user forum.In addition, check out Gupta’s new book Java EE 6 Pocket Guide.

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  • SEO Question - allintitle with or without quotes

    - by Aaron
    I'm trying to learn more about implementing basic SEO strategies and have been spending a lot of time refining my keywords using Google Analytics combined with manually checking them using Google's allintitle operator. However, I'm unclear on whether I should be using quotes with my allintitles. Example: allintitle: seo tips and tricks for beginners 191 results allintitle: "seo tips and tricks for beginners" 70 results My thought is that it would be more accurate to use it without quotes because that way you get a more well rounded idea of all those you are competing with. So, my question is does Google give more weight to exact matches in the title tag or does that not really matter? If someone searched for: seo tips and tricks for beginners, would they be more likely to see the ones that have that exact phrase in their title tag or does that not have any impact?

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  • Working with SQL Server Profiler Trace Files

    In a previous tip we looked at the steps to Create a Trace Template in Profiler. In this tip we will look at a few more tips such as creating a trace template from an existing trace file and saving a trace file to a SQL Server table. Free trial of SQL Backup™“SQL Backup was able to cut down my backup time significantly AND achieved a 90% compression at the same time!” Joe Cheng. Download a free trial now.

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  • Melting plastic around DC-in jack in laptop

    - by Ove
    I recently noticed that the plastic around the DC-in jack of my laptop was warped (melted) a little bit. Since I noticed, I have done some experiments, and saw that the metal tip of the charger heats up very much when I am gaming, or performing CPU-intensive work (it's so hot that i can't hold it between my fingers). When I am using Windows normally (web browsing, music, video), the tip is not hot. I tried using another charger from a compatible laptop, but its metal tip overheated as well, so the problem is not caused by the charger. I have been using this laptop for gaming for 1.5 years and I never had this problem. When gaming I always use a laptop cooler. Dust is not the problem (i cleaned out the dust), and the CPU and GPU temperatures are not higher than when I got the laptop. The only thing that is excessively hot is the charger tip. Because I bought my laptop from the USA, sending it to warranty and back would cost more than the laptop's value, so I need to fix it myself. I have googled around, and I saw that the problem might be the DC-in jack that is located on the motherboard of the laptop. I plan to take the laptop apart and see if it has become loose, and soldering it in place if it has. My questions for you are: Did anyone deal with this problem in the past? Did anyone manage to fix it? Is the DC-in jack the culprit in this case? Or is it possible for the problem to be caused by another part on the motherboard? Is there any way I can check the DC-in jack with a multimeter? What should I measure (resistance, etc)? EDIT: My laptop is a Sager NP5135 (aka Clevo B5130M). I also posted on NBR, including some pictures: link

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  • My stereo headphones cable is broken, what can I do?

    - by ucas
    I have a pair of stereo headphones, I got them on Amazon. Now, the right headphone stops producing sound. To fix that I need to move/shake the tip of the cable (the one before that part of tip which goes inside the headphone jack on the laptop). But as time goes, this sort of fix helps less and less. It looks that the cable is a bit broken at the place where I shake/move cable. Is that the end of use of my headphones? Is that a reject of the device? Is there a way to fix it, for example, changing the very tip of the cable at the very end of it. Any advice on buying headphones?

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  • Silverlight Cream for May 19, 2010 -- #865

    - by Dave Campbell
    In this Issue: Michael Washington, Mike Snow(-2-), Justin Angel(-2-), Jeremy Likness, and David Kelley. Shoutout: Erik Mork and crew have their latest up: Silverlight Week – Silverlight Android? From SilverlightCream.com: Simple Silverlight 4 Example Using oData and RX Extensions Michael Washington has a follow-on tutorial up on ViewModel, Rx, and lashed up to OData... good detailed tutorial with external links for more information. Silverlight Tip of the Day #21 – Animation Easing Mike Snow has a couple new tips up -- this first one is about easing... great diagrams to help visualize and a cool demo application to boot. Silverlight Tip of the Day #22 – Data Validation Mike Snow's second tip (#22) is about validation and again he has a great demo app on the post. Windows Phone 7 - Emulator Automation Justin Angel has a WP7 post up about Automating the emulator... and in the process, loading the emulator from something other than VS2010... lots of good information. TFS2010 WP7 Continuous Integration Justin Angel hinted at continuous integration for WP7 in the last post, and he pays off with this one... even without all the bits installed on the build server. Making the ScrollViewer Talk in Silverlight 4 Jeremy Likness tried to respond to a user query about knowing when a user scrolled to the bottom of a ScrollViewer... Jeremy resolved it by listening to the right property. MEF (Microsoft Extensibility Framework) made simple (ish) David Kelley is discussing MEF and using a real-world example while doing so. Good discussion and code available in his code browser app... check thecomments. 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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  • Friday Tips #4

    - by Chris Kawalek
    It's time once again for our Friday tip. Our question today is about how to determine how much video RAM to allocate for your virtual machines in a VDI deployment: Question: How much video RAM do I really need on my VirtualBox VMs? Answer by John Renko, Consulting Developer, Oracle: The answer is in the VirtualBox admin guide but it's seldom followed correctly, usually resulting in excess unused RAM to be allocated. The formula for determining how much RAM to allocate is shown below for a 32 bit fullscreen 22" monitor supporting 1680x1050: bit depth / 8 x horizontal res x vertical res / 1024 / 1024 = MB RAM Which translates to: 32 bits / 8 x 1680 x 1050 / 1024 / 1024 = 6.7 MB If you wanted to support dual 22" monitors, you would need twice that, so 13.4 MB. Anything in excess of what is needed is readily allocated but not used and would be better suited for running more VMs! Thanks John, that tip should help folks squeeze a little more out of their VDI servers. And remember, if you have a question for us, use hash tag #AskOracleVirtualization on Twitter. We'll see you next week with another tip! -Chris 

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  • The relative effort of SharePoint 2010 vs. 2007

    - by erobillard
    SharePoint 2007 was the best demo-ware ever. It’s like going to the pet store and seeing a great dog that does backflips all kinds of tricksand it really is a smart dog and it does all those tricks – but when you get it home you realize that what you need is a dog that gets the paper. SharePoint 2007 can be trained, but is fundamentally a platform where Microsoft's priority was to get the infrastructure right – to make it trainable and extensible. Because it was great demo-ware it caught on like...(read more)

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  • The relative effort of SharePoint 2010 vs. 2007

    SharePoint 2007 was the best demo-ware ever. Its like going to the pet store and seeing a great dog that does backflips all kinds of tricks and it really is a smart dog and it does all those tricks but when you get it home you realize that what you...(read more)...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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  • SEO and new site - visibility best practices

    - by Ispuk
    Since i launched a new web site, i was wondering which are the best practices to let the visibility of the site grow up faster then just leaving the site online? I mean which internet channels are good to speed up visibility of a new site? Can anyone show some tricks he do when launching new site? I'm not talking about spam, advertising and SEO tech tips (the site is well done with all the main SEO tech tricks).

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  • Silverlight Cream for April 29, 2010 -- #851

    - by Dave Campbell
    In this Issue: Carlos Figueira(-2-), Subodh Pushpak, Gergely Orosz, John Papa, Mike Snow(-2-), Rishi, Tim Heuer, Stefan Olson, and David Anson. Shoutouts: Josh Holmes blogged about a cool app the City of Miami has up: Miami 311: Built on Windows Azure Gergely Orosz reports on the state of a bug he found pre SL4: Silverlight 4 still displays large elements incorrectly Laura Foy and Charlie Kindel discuss WP7 on Channel 9: Windows Phone 7 Developer Tools Refresh Announced Charlie Kindel has an announcement, good instructions, and what's new notes on the Windows Phone Developer Tools CTP Refresh! Tim Heuer mentioned the workaround for this in his post (below), but I thought you might like to read Brandon Watson's debrief of what it's all about: Signed Assemblies Bug in the Windows Phone Tools CTP Refresh Laurent Bugnion posted about interrelations between versions of Blend and WP7 code... read it closely: Be careful when installing the Blend Windows Phone 7 Add-In From SilverlightCream.com: Consuming REST/POX services in Silverlight 4 Carlos Figueira has a pair of posts up about consuming services in Silverlight 4. This first one is about consuming REST/POX services. He provides a Service Contract that can be used with either and the full project code is available as well. Consuming REST/JSON services in Silverlight 4 In the second post, Carlos Figueira provides the code to allow WCF and Silverlight 4 to consume strongly-typed REST/JSON... and again, all the code is available. Silverlight and WCF caching Subodh Pushpak has a post up discussing caching in WCF, and has code demonstrating turning caching on at run-time. Detecting Silverlight Version Installed Gergely Orosz said it right when he said "Detecting the Silverlight version installed on a client machine isn’t entirely straightforward." ... and after reading this post, if you take the link to his ScottLogic blog, you'll get a full break-out of how it's done. Silverlight TV 22: Tim Heuer on Extending the SMF It's Thursday, and that means Silverlight TV! ... this week, John Papa has on Tim Heuer who has always been out there pushing media... and he's talking about SMF or Silverlight Media Framework for the uninitiated, and also extending it. Silverlight Tip of the Day #7 – Localized Resources Mike Snow has Tip Number 7 up and it's about localization... good end-to-end discussion and demonstration. Just thought I should use that to prove to my daughter that the tatoo she had put on the back of her neck actually reads "Eat More Broccoli" :) Silverlight Tip of the Day #8 – Detecting Alt, Shift, Control, Window & Apple Keys Combinations I just realized Mike Snow's site logo reads "Silverlight Tips of the Day" (bolding mine) ... that answers why I'm seeing more than one -- sorry Mike, couldn't pass it up :) ... Mike's second tip today and number 8 in the series is on detecting all the mouse button and ctl/alt/shift combinations in Silverlight. nRoute: More Wholesomeness, with SL 4 and .NET 4.0 Rishi has a post up announcing a new nRoute release for Silverlight 4 and .NET 4.0 He's tweaked the code to take advantages of enhancements in the new platforms, so check it out. Windows Phone 7 Developer Tools April 2010 Refresh Booya... Tim Heuer announced the release of the next drop in the WP7 tools ... dang wish I was at home today :) ... be sure to read the post for info such as the notes about Authenticode Assemblies and the release notes. Updates to Silverlight Multi-binding support Stefan Olson points up a SL4 change to Multi-binding support that he had previously blogged about. He shows the previous non-working example, and what you have to do to make it work now. Using XAML to create a custom wallpaper image for your mobile device David Anson has a solution for those pesky lost devices, and let me go on the record right now saying if anyone finds a WP7 phone laying around, just call me, it's mine :) [think that'd work??] ... ok, David's solution is a WPF app "MobileDeviceHomeScreenMaker" that you get the info set and it produces a png you then put on your device. But seriously about that lost phone... 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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  • I can't read the value from a radio button.

    - by Corey
    <html> <head> <title>Tip Calculator</title> <script type="text/javascript"><!-- function calculateBill(){ var check = document.getElementById("check").value; /* I try to get the value selected */ var tipPercent = document.getElementById("tipPercent").value; /* But it always returns the value 15 */ var tip = check * (tipPercent / 100) var bill = 1 * check + tip; document.getElementById('bill').innerHTML = bill; } --></script> </head> <body> <h1 style="text-align:center">Tip Calculator</h1> <form id="f1" name="f1"> Average Sevice: 15%<input type="radio" id="tipPercent" name="tipPercent" value="15" /> <br /> Excellent Sevice: 20%<input type="radio" id="tipPercent" name="tipPercent" value="20" /> <br /><br /> <label>Check Amount</label> <input type="text" id="check" size="10" /> <input type="button" onclick="calculateBill()" value="Calculate" /> </form> <br /> Total Bill: <p id="bill"></p> </body> </html>

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  • How can I read the value of a radio button in JavaScript?

    - by Corey
    <html> <head> <title>Tip Calculator</title> <script type="text/javascript"><!-- function calculateBill(){ var check = document.getElementById("check").value; /* I try to get the value selected */ var tipPercent = document.getElementById("tipPercent").value; /* But it always returns the value 15 */ var tip = check * (tipPercent / 100) var bill = 1 * check + tip; document.getElementById('bill').innerHTML = bill; } --></script> </head> <body> <h1 style="text-align:center">Tip Calculator</h1> <form id="f1" name="f1"> Average Service: 15% <input type="radio" id="tipPercent" name="tipPercent" value="15" /> <br /> Excellent Service: 20% <input type="radio" id="tipPercent" name="tipPercent" value="20" /> <br /><br /> <label>Check Amount</label> <input type="text" id="check" size="10" /> <input type="button" onclick="calculateBill()" value="Calculate" /> </form> <br /> Total Bill: <p id="bill"></p> </body> </html> I try to get the value selected with document.getElementById("tipPercent").value, but it always returns the value 15.

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  • Is this a situation where I should "hg push -f"?

    - by user144182
    I have two machines, A and B that both access an external hg repository. I did some development on A, wasn't ready to push changesets to the external, and needed to switch machines, so I pushed the changesets to B using hg serve. Changesets continued on B, were committed and then pushed to external repo. I then pulled on A and updated to default/tip. This left the local changesets that had previously been pushed to B as a branch, but because of how I pushed things around, the changes in the local changesets are already in default/tip. I've now continued to make changes and commit locally on A, but when I try to push hg asks me to merge or do push -f instead. I know push -f is almost never recommended. This situation is close to one where I should use rebase, however the changesets that would be "rebased" I don't really need locally or in the external repository since they are already effectively in default/tip via the push to B. Now, I know I could merge with the latest local changeset and just discard the changes, but then I would still have to commit the merge which gets me back into rebase territory. Is this a case where I could do hg push -f? Also, why would pushing from A create remote heads if I've updated to default/tip before I continued to commit changesets?

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  • How to find polarity of a power supply that's lacking the customary markings

    - by Nosredna
    If I have a power supply (not a computer power supply, just a battery-replacing wall wart) and it doesn't have the usual polarity marking, how to I know if the tip is positive or negative? Update: I couldn't find my multimeter. I did find a model number on the power supply and typed it into Google. Some guy selling a bunch of power supplies on eBay had checked it and found that it was tip positive, which is what I needed!

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  • SQL Server: how to check securables

    - by jrara
    I would like to make a t-sql query to check which logins have 'view server state' permission in server type securables. How to achieve this? This query from mssqltips don't show this: http://www.mssqltips.com/tip.asp?tip=1718 SELECT prin.[name] [User], sec.state_desc + ' ' + sec.permission_name [Permission] FROM [sys].[database_permissions] sec JOIN [sys].[database_principals] prin ON sec.[grantee_principal_id] = prin.[principal_id] WHERE sec.class = 0 ORDER BY [User], [Permission];

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  • Creating tooltips for each field in Sharepoint form.

    - by ephieste
    I want to create tool tips for each part in a form which employees have to fill in a share point web page. When users move the mouse cursor on each field (Title, description, department etc.) the related tip will be automatically became visible as a simple pop-up (tool tip) and summarize what they should write there. and when the mouse cursor is not on one of these fields there is no tool tip. How can I design such a system via share point designer? I am not able use any add ons. I can't upload any additional things to the server. I have to make page based design. I would be glad if you kindly help me.

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  • Active record taking Date.today as yesterday

    - by Mongus Pong
    I have a strange one.. I am doing something like : tip = find (:first, :conditions => ["last_shown = ? or last_shown is null", Date.today]) And then a little later on I do : tip.last_shown = Date.today tip.save When I look at output of these queries, ActiveRecord is doing the first query with todays date as I would expect. However, the send query, ActiveRecord is setting the last_shown date to be yesterdays date. Why on earth would it do this? I have config.time_zone = 'UTC' in my environment.rb. I can use Time.now.utc.to_date instead of Date.today but it makes no difference.

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