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  • How to disable typing in values in Dojo's NumberSpinner?

    - by callie16
    Hi, is there a way to disable typing in of values in the NumberSpinner of Dojo? Or is there a way for me to set back a previous value to it? Here's a sample situation: I have a spinner where the range is 1-3. However, the user types in an invalid value... say, a letter. The usual error handling happens. However, if the user deletes the value and focuses out (e.g. goes to another widget/control/etc. in the page), the spinner stays blank. Either I reset it to the last valid value or I disable typing so that the user can just use the up and down arrows to manipulate the widget. Any thoughts? Thanks!

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  • Goldtouch USB Keyboard reverses keystrokes in fast typing -- expected?

    - by Justin Grant
    I am running into an odd keyboard problem: some key combinations end up reversed (e.g. "pl" ends up being emitted as "lp") when I'm typing quickly. The problematic ones are the key combos I hit with two adjacent fingers on my right hand-- in other words, the combos I can hit the fastest. No idea how fast is "fastest", but I guess around 50-150 msecs gap between them. I'm trying to track down whether this represents a failed keyboard, an inherent limitation of my Goldtouch USB keyboards, or a software problem on my Windows 7 Lenovo T500. I use a PS/2 version of the same Goldtouch keyboard at home with no problems. I've tried another USB keyboard with my laptop and can't repro the problem. I've also used this keyboard on other laptops without a problem. According to this SU thread, USB keyboards have higher latency than PS/2 keyboards-- up to 30 msecs. I find it hard to imagine that I can type key combos faster than 50 msecs, probably more like 100-150. Anyone encountered this problem with this or another keyboard? If so, how did you fix it? Any idea if there's a "keyboard log" or some way to diagnose the problem inside Windows?

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  • Foreign key onto weak entity set in MS SQL Server 2008?

    - by Nic Waller
    I'm using Microsoft SQL Server 2008 Management Studio to create a relational schema by following an Entity-Relationship diagram. (included below; unrelated details removed) Until now, primary and foreign keys have been working as expected. But when I try to create a foreign key from the entity relationship takes onto the weak entity set section, I get an error. Section is identified by a composite primary key in the context of course, which has course_id as a primary key. Therefore, the primary key of section is a 4-way composite key. The entity relationship takes needs to refer to section, so it includes all 4 primary attributes from section in it's own primary key. When trying to establish a foreign key relationship from takes to section, Studio gives the following error: The columns in table 'section' do not match an existing primary key or UNIQUE constraint. Am I doing something wrong, or is this an unsupported configuration? I can provide more details or the SQL schema if necessary.

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  • How do you jump to a particular row in a DataGridView by typing (a la Windows Explorer details view)

    - by russcollier
    I have a .NET Winforms app in C# with a DataGridView that's read-only and populated with some number of rows. I'd like to have functionality similar to Windows Explorer's (and many other applications) details view for example. I'd like the DataGridView to behave such that when it has focus if you start typing, the current row selection will jump to the row where the (string) value of cell 0 (i.e. the first column in the row) starts with the characters you typed in. For example, if I have a DataGridView with 1 column and the following rows: Bob Jane Jason John Leroy Sam If the DataGridView has focus and I hit the 'b' key on my keyboard, the selected row is now "Bob". If I quickly type in the keys 'ja', the selected row is Jane. If I quickly type in the letters 'jas', the selected row is Jane. If I hit the 'z' key, nothing is selected (since nothing starts with Z). Likewise if Jane is currently selected and I keep typing the letter 'j', the selection will cycle through to Jason, then John, then back to Jane, each time I hit the 'j' key. I've been doing some Googling (and "stackoverflowing" :-)) for awhile and cannot find any examples of this type of functionality. I have a rough idea in my head to do this via some sort of short lived timer thread, collecting the keystrokes on KeyPress events for the DataGridView, and selecting rows based on those collected keystrokes matching a Cells[0].Value.StartsWith() type of condition. But it seems like there has to be an easier way that I'm just not seeing. Any ideas would be much appreciated. Thanks!

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  • Can computer crashes and reboots mean weak power supply?

    - by TomA
    Recently I replaced the videocard in my PC for a newer, faster one. All games work perfectly but I get random system crashes and reboots. This happens even when the system is almost idle (browsing, playing music). It never happened with the old card. All drivers are up-to-date. Is it possible that the power supply is not powerful enough for the new card?

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  • Explicitly typing variables causes compiler to think an instance of a builtin type doesn't have a pr

    - by wallacoloo
    I narrowed the causes of an AS3 compiler error 1119 down to code that looks similar to this: var test_inst:Number = 2.953; trace(test_inst); trace(test_inst.constructor); I get the error "1119: Access of possibly undefined property constructor through a reference with static type Number." Now if I omit the variable's type, I don't get that error: var test_inst = 2.953; trace(test_inst); trace(test_inst.constructor); it produces the expected output: 2.953 [class Number] So what's the deal? I like explicitly typing variables, so is there any way to solve this error other than not providing the variable's type?

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  • Typing numbers on a MacBook Pro with AZERTY keyboard with Caps Lock — possible?

    - by Mathias Bynens
    I have a Belgian AZERTY keyboard on my MacBook Pro. Sadly, it appears to be impossible to use Caps Lock to type numbers — I still need to hold Shift for every number I want to type. Is it possible to change the Caps Lock key’s function to Shift Lock so that it affects the whole keyboard rather than just the letters? I’d like to be able to type numbers without holding Shift.

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  • How do I troubleshoot a segfault in Ubuntu that occurs when typing a bogus command?

    - by Alan
    We've got a production server running Ubuntu 11.10. We're encountering segfaults that appear under various conditions. The simplest reproducible case is when we login to an ssh session as our administrative user and enter a bogus command. You'd expect the standard "command not found" error message. Instead, we get a segfault in python. The user's default shell is /bin/bash. For example: $ asdf Segmentation fault Info from /var/log/syslog: Jul 6 15:39:20 PROD001 kernel: [2155960.605695] python[7873]: segfault at 0 ip (null) sp 00007fffd030b808 error 14 in python2.7[400000+233000] Some details about the server: $ uname -a Linux PROD001 3.0.0-16-server #29-Ubuntu SMP Tue Feb 14 13:08:12 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux $ cat /etc/issue Ubuntu 11.10 \n \l Before we ask the IT department to reinstall the O.S., I'd like to understand what got us here. The system and/or this particular user's environment is suspect. Many people have touched this server over the past year, so I'm wondering if it is missing libraries, incorrectly installed packages, etc. I'm hoping that if we can understand what's going wrong in this case, it will help explain why we're getting segfaults in a couple of other scenarios. Any tips on troubleshooting this segfault will be appreciated!

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  • What is the meaning of those numbers in the second column after typing "ls -l"?

    - by Nick Dong
    drwxr-xr-x. 2 root root 4096 Jun 29 16:44 db drwxr-xr-x. 2 root root 4096 Jun 29 16:44 djproject -rwxr-xr-x. 1 root root 38 Jun 29 16:44 index.html drwxr-xr-x. 2 root root 4096 Jun 29 16:44 jobs -rwxr-xr-x. 1 root root 252 Jun 29 16:44 manage.py drwxr-xr-x. 3 root root 4096 Jun 29 16:44 templates What is the meaning of those numbers in the second column? Do they have some relation to file and folder permissions? How do I change the numbers?

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  • Mail.app - What sets sort order when adding To addresses by typing Group name?

    - by Meltemi
    Using Mail.app in Mac OS X (10.6.3) I'm seeing apparently random sort order when sending a email to a group. Not a major issue but you'd think it be alphabetical?!? To reproduce: Compose New Message in Mail.app Type in a group name from your Address Book The addresses from that group will populate the To: field in apparently random fashion FYI- You'd think that choosing Edit Distribution List… in Address Book would let you sort the list...but nope! Anyone know what/how to set this sort order?

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  • Typing math formulas in LaTex and getting them in MathType format?

    - by Tim
    I am asked to type some math formulas that can work in Microsoft Office and MathType equation editor. But I only have access to Ubuntu 12.04 near me, there is LibreOffice available under Ubuntu as well, but I am used to type math formulas in LaTex. So I wonder how to provide math formulas that will work in Microsoft Office and MathType, if I work under Ubuntu, preferably with LaTex but LibreOffice being also acceptable since it is still under Ubuntu? Thanks and regards!

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  • How to select the account on the login screen of Windows7 by start typing the name?

    - by akira
    When MacOS boots up and the users is prompted to select the account (s)he wants to login into, the users can either click the name / icon of the account with the mouse or just type in the name of the account. I want to do the same at the login screen of Windows7: Login screen pops up, I start to type my account name, I select the account with enter and then I type the password and enter again. No usage of the mouse involved. (I am aware of tab-cycling and hard-to-follow-the-almost-invisible-marker-of-where-the-focus-is-right-now)

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  • Is there a way of using ctrl-r after typing part of command in bash?

    - by skeept
    In bash the ctrl-r command is very useful, I type ctrl-r whatever and it searchs my history for commands containing the word whatever. But if I type whatever and realize that I would like search that word and hit ctrl-r nothing happens. Is there a way hitting a key and having it behaving as if I had typed ctrl-r whatever instead of whatever ctrl-r? I have the following in my .inputrc "\C-p": history-search-backward but this only works if the beginning of the line is the same.

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  • ObjC internals. Why my duck typing attempt failed?

    - by Piotr Czapla
    I've tried to use id to create duck typing in objective-c. The concept looks fine in theory but failed in practice. I was unable to use any parameters in my methods. The methods were called but parameters were wrong. I was getting BAD_ACESS for objects and random values for primitives. I've attached a simple example below. The question: Does any one knows why the methods parameters are wrong? What is happening under the hood of the objective-c? Note: I'm interest in the details. I know how to make the example below work. An example: I've created a simple class Test that is passed to an other class using property id test. @implementation Test - (void) aSampleMethodWithFloat:(float) f andInt: (int) i { NSLog(@"Parameters: %f, %i\n", f, i); } @end Then in the class the following loop is executed: for (float f=0.0f; f < 100.0f ; f += 0.3f) { [self.test aSampleMethodWithOneFloatParameter: f]; // warning: no method found. } Here is the output that I'm getting. As you can see the method was called but the parameters were wrong. Parameters: 0.000000, 0 Parameters: -0.000000, 1069128089 Parameters: -0.000000, 1070176665 Parameters: 2.000000, 1070805811 Parameters: -0.000000, 1071225241 Parameters: 0.000000, 1071644672 Parameters: 2.000000, 1071854387 Parameters: 36893488147419103232.000000, 1072064102 Parameters: -0.000000, 1072273817 Parameters: -36893488147419103232.000000, 1072483532

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  • webpage scrollbar scrolls to top when typing in input box, how to fix?

    - by derei
    I have a HTML table that is scrollable and I'm forcing the scroll bar at the bottom. But every time I type something in a input box situated inside <thead> it scrolls back to top. I have no idea how to stop it to do that... I'm sorry for not explaining it better, if anybody wants to help, I could provide a link. I cannot place it public because is a private project. Thanks, let me know. EDIT -added jsfiddle example (below is the link) click here for jsfiddle example EDIT2 the issue seem to be present only in Chrome, but that it's more than enough (the app is intended to be used in chrome) EDIT3 I found a similar issue here: on webkit browsers typing into edit box causes scrolling , so the problem seem explained: the parent element gets focus on the side where the input-box is. I verified this on a mockup-template and it acts accordingly. *The question is:*how to prevent this to happen? I am forced by situation to have the input-box as child for the scrollable div, but I don't want that scroll to move (somehow to not give focus to the parent element, when I type in the input-box). Any idea?

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  • Are there any languages that are dynamically typed but do not allow weak typing?

    - by Maulrus
    For example, adding a (previously undeclared) int and a string in pseudocode: x = 1; y = "2"; x + y = z; I've seen strongly typed languages that would not allow adding the two types, but those are also statically typed, so it's impossible to have a situation like above. On the other hand, I've seen weakly typed languages that allow the above and are statically typed. Are there any languages that are dynamically typed but are also strongly typed as well, so that the piece of code above would not be valid?

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  • 5 Android Keyboard Replacements to Help You Type Faster

    - by Chris Hoffman
    Android allows developers to replace its keyboard with their own keyboard apps. This has led to experimentation and great new features, like the gesture-typing feature that’s made its way into Android’s official keyboard after proving itself in third-party keyboards. This sort of customization isn’t possible on Apple’s iOS or even Microsoft’s modern Windows environments. Installing a third-party keyboard is easy — install it from Google Play, launch it like another app, and it will explain how to enable it. Google Keyboard Google Keyboard is Android’s official keyboard, as seen on Google’s Nexus devices. However, there’s a good chance your Android smartphone or tablet comes with a keyboard designed by its manufacturer instead. You can install the Google Keyboard from Google Play, even if your device doesn’t come with it. This keyboard offers a wide variety of features, including a built-in gesture-typing feature, as popularized by Swype. It also offers prediction, including full next-word prediction based on your previous word, and includes voice recognition that works offline on modern versions of Android. Google’s keyboard may not offer the most accurate swiping feature or the best autocorrection, but it’s a great keyboard that feels like it belongs in Android. SwiftKey SwiftKey costs $4, although you can try it free for one month. In spite of its price, many people who rarely buy apps have been sold on SwiftKey. It offers amazing auto-correction and word-prediction features. Just mash away on your touch-screen keyboard, typing as fast as possible, and SwiftKey will notice your mistakes and type what you actually meant to type. SwiftKey also now has built-in support for gesture-typing via SwiftKey Flow, so you get a lot of flexibility. At $4, SwiftKey may seem a bit pricey, but give the month-long trial a try. A great keyboard makes all the typing you do everywhere on your phone better. SwiftKey is an amazing keyboard if you tap-to-type rather than swipe-to-type. Swype While other keyboards have copied Swype’s swipe-to-type feature, none have completely matched its accuracy. Swype has been designing a gesture-typing keyboard for longer than anyone else and its gesture feature still seems more accurate than its competitors’ gesture support. If you use gesture-typing all the time, you’ll probably want to use Swype. Swype can now be installed directly from Google Play without the old, tedious process of registering a beta account and sideloading the Swype app. Swype offers a month-long free trial and the full version is available for $1 afterwards. Minuum Minuum is a crowdfunded keyboard that is currently still in beta and only supports English. We include it here because it’s so interesting — it’s a great example of the kind of creativity and experimentation that happens when you allow developers to experiment with their own forms of keyboard. Minuum uses a tiny, minimum keyboard that frees up your screen space, so your touch-screen keyboard doesn’t hog your device’s screen. Rather than displaying a full keyboard on your screen, Minuum displays a single row of letters.  Each letter is small and may be difficult to hit, but that doesn’t matter — Minuum’s smart autocorrection algorithms interpret what you intended to type rather than typing the exact letters you press. Just swipe to the right to type a space and accept Minuum’s suggestion. At $4 for a beta version with no trial, Minuum may seem a bit pricy. But it’s a great example of the flexibility Android allows. If there’s a problem with this keyboard, it’s that it’s a bit late — in an age of 5″ smartphones with 1080p screens, full-size keyboards no longer feel as cramped. MessagEase MessagEase is another example of a new take on text input. Thankfully, this keyboard is available for free. MessagEase presents all letters in a nine-button grid. To type a common letter, you’d tap the button. To type an uncommon letter, you’d tap the button, hold down, and swipe in the appropriate direction. This gives you large buttons that can work well as touch targets, especially when typing with one hand. Like any other unique twist on a traditional keyboard, you’d have to give it a few minutes to get used to where the letters are and the new way it works. After giving it some practice, you may find this is a faster way to type on a touch-screen — especially with one hand, as the targets are so large. Google Play is full of replacement keyboards for Android phones and tablets. Keyboards are just another type of app that you can swap in. Leave a comment if you’ve found another great keyboard that you prefer using. Image Credit: Cheon Fong Liew on Flickr     

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  • How to let the user choose between typing price inclusive VAT or exclusive VAT in TextField?

    - by Sanoj
    I am implementing an back-office application where the user type in prices for products. Sometimes it is preferred to type the price inclusive value-added-tax, VAT and sometimes exclusive VAT. How do I best let the user choose between the inclusive or exclusive VAT in a usability perspective? I could have two TextFields above eachother one inclusive VAT and one exclusive, and reflect the input. But I don't think that reflecting the input in another TextField at realtime is good when it comes to usability, it distracts the user. I could also have two Radiobuttons above the TextField or below, or maybe besides the TextField that let the user make the choice. Or should I have a single button for turning between inclusive/exclusive VAT? like On/Off-buttons. But what text should I have on the button and how should the button be designed? I think this is good because it takes less space and it is easy to have it close to the TextField, but it's very hard to design a good button in a usability perspective. Please give me some recommendations. Maybe someone of you works with usability or have seen a similar problem.

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  • What is your strategy to avoid dynamic typing errors in Python (NoneType has no attribute x)?

    - by Koen Bok
    Python is one of my favorite languages, but I really have a love/hate relationship with it's dynamicness. Apart from the advantages, it often results in me forgetting to check a type, trying to call an attribute and getting the NoneType (or any other) has no attribute x error. A lot of them are pretty harmless but if not handled correctly they can bring down your entire app/process/etc. Over time I got better predicting where these could pop up and adding explicit type checking, but because I'm only human I miss one occasionally and then some end-user finds it. So I'm interested in your strategy to avoid these. Do you use type-checking decorators? Maybe special object wrappers? Please share...

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