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  • File input validation

    - by Emanuil
    You have a web page with a form that has an input field of type file. You have another web page that expects the data from the first page. In the second page you need to check whether a file has been sent. How do you do that? I've been using the following statement but I'm not sure about it: $_FILES["file"]["tmp_name"] == ""

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  • Dynamically resize input

    - by Matt
    Hey all, I was just wondering how do you dynamically resize an input as you type in it?? I'd like to use jQuery if possible & I would rather it be a small script than a bulky plugin. Please let me know, Matt Mueller

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  • accept attribute in input file is not working

    - by subash
    hi i came across a browse file dialog control tag in htnl .and the tag was <input id="myfile" name="myfile" type="file" accept="application/pdf"/> but the accept attribute doesnt seems to have any effect .iam using internetexplorer 8 browser does it have any thing to do with the accept atribute

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  • Javascript: Make Rows Draggable Through Input Field Handles

    - by Corey O.
    I have created a table with draggable rows. Unfortunately, most of the rows are covered with a large textbox input element. In order to drag the rows, you have to grab the row on the very edge just outside of the textbox. Is there a way to allow the rows to be grabbed through the textboxes without destroying the textbox functionality? (i.e. relay the mouse drag event, but not the mouseclick event?)

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  • User input without waiting for enter

    - by Hermann Ingjaldsson
    I am trying to make an interactive shell script in perl. The only user input I can find is the following: $name = <STDIN>; print STDOUT "Hello $name\n"; But in this the user must always press enter for the changes to take effect. How can I get the program to proceed immediately after a button has been pressed?

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  • Wait set time for user input C#

    - by Marlon
    I need to know how to wait at set amount of time (about 10 seconds), for a user to input a key or set of keys, before proceeding with an 'auto run' portion of the application. This is bugging me because I can't quite figure out how the timer works, or threading.sleep, what should I use? Been googling all day.

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  • No newline after input in C

    - by pwseo
    Hello there, How can I prevent a given app from creating a newline ('\n') after I request user input in C? I'd like something like: Type a number Number: 3x10 = 30 The "x10 = 30" is added after the user inputs the number.. The problem is I can't do it on the same line (and I'd like to do it). Can anyone help me?

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  • How to read input until the user enters ^X

    - by Koning Baard
    I am creating an interpreter for my esolang, and I need the user to enter some text which then will be interpreted as an INTERCAL program. I want the user to enter text, which may contain any character including newlines, until the user presses ^X (Ctrl-X), like this: Enter your code followed by ^X: Bla Blablabla Bla^X Thank you for entering your code (line 2, 3 and 4 were entered by the user) can anyone explain me how I can read input including newlines till the user enters ^X? Thanks

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  • Select all text in an <input /> when it gains focus

    - by Chris Barr
    I've got a textbox (set to readonly) and I need its' contents to be selected for easy copy/paste when it gains focus. Using the code below it only seems to quickly select the text and then unselect it for some reason. HTML <input id='thing' type='text' value='some text' readonly='readonly' />? JavaScript document.getElementById('thing').onfocus = function(){ this.select(); };? Fiddle: http://jsfiddle.net/cfqje/

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  • Python: Streaming Input with Subprocesses

    - by beary605
    Since input and raw_input() stop the program from running anymore, I want to use a subprocess to run this program... while True: print raw_input() and get its output. This is what I have as my reading program: import subprocess process = subprocess.Popen('python subinput.py', stdout=subprocess.PIPE, stderr=subprocess.PIPE) while True: output=process.stdout.read(12) if output=='' and process.poll()!=None: break if output!='': sys.stdout.write(output) sys.stdout.flush() When I run this, the subprocess exits almost as fast as it started. How can I fix this?

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  • Wait set time for user input C# console app

    - by Marlon
    For a Console app, I need to know how to wait at set amount of time (about 10 seconds), for a user to input a key or set of keys, before proceeding with an 'auto run' portion of the application. This is bugging me because I can't quite figure out how the timer works, or threading.sleep, what should I use? Been googling all day.

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  • Batch File input validation - Make sure user entered an integer

    - by B2Ben
    I'm experimenting with a DOS batch file to perform a simple operation which requires the user to enter a non-negative integer. I'm using simple batch-file techniques to get user input: @ECHO OFF SET /P UserInput=Please Enter a Number: The user can enter any text they want here, so I would like to add some routine to make sure what the user entered was a valid number. That is... they entered at least one character, and every character is a number from 0 to 9. I'd like something I can feed the UserInput into. At the end of the routine would be like an if/then that would run different statements based on whether or not it was actually a valid number. I've experimented with loops and substrings and such, but my knowledge and understanding is still slim... so any help would be appreciated. I could build an executable, and I know there are nicer ways to do things than batch files, but at least for this task I'm trying to keep it simple by using a batch file.

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  • jquery input-validation (number characters and decimal places).

    - by Cesar Lopez
    I have several javascript functions to validate the input data in textbox, so it will limit the user to type into the textbox a range of numbers (eg. from 0 to 500) an x amount of decimals (eg. 1 or 2 or 3 ....). I am having some issues with the javascript functions because they are three separate functions and the alerts get a bit mixed up. I was wondering if there is a jquery function that will make it neat, effective and simple. Thanks.

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  • masked input: I can't get the simplest completion to work

    - by Karl Messner
    Trying to use Josh Bush's masked input plugin. I want to shift focus and do other things once the person puts their cell phone in. I mask to a phone shape. When I hit the last letter, I want it to trigger a javascript function. Right now that function just alerts hi. But I can't get it to work: function jump(){ alert('hi'); } $(document).ready(function(){ $("#cellphone").focus(); jQuery(function($){ $("#product").mask("(999) 999-9999",{completed:function(){jump();}}); }); });

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  • How to read formatted input in python?

    - by eSKay
    I want to read from stdin five numbers entered as follows: 3, 4, 5, 1, 8 into seperate variables a,b,c,d & e. How do I do this in python? I tried this: import string a=input() b=a.split(', ') for two integers, but it does not work. I get: Traceback (most recent call last): File "C:\Users\Desktop\comb.py", line 3, in <module> b=a.split(', ') AttributeError: 'tuple' object has no attribute 'split' How to do this? and suppose I have not a fixed but a variable number n integers. Then?

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  • Tracking graphics tablet input in C#

    - by Martin
    I'm writing an XNA application with C#, and I want to be able to control the application with a graphics tablet. All I need to be able to do is track the position and pressure of the pen on the tablet, it would be nice to have some built in gesture recognition but I'm willing to build that myself if needed. My first attempt at this was to use the vbtablet library. However, when I sent this to a friend it failed to work. It seems that the underlying technology is quite old and not supported by some tablets. My second attempt is to play with the Microsoft.Ink system. This looks promising, but I know very little about this subject and I'm struggling to make it work properly - for example I can't find how to read the raw tablet input and disable mouse pointer mode on the tablet when using an InkOverlay. What's the best system to use and what good documentation is there for a beginner in this field?

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  • Default Values in XForms Input

    - by Josh
    I have an XForm that has certain fields that may often be left blank (optional street address). Is there is technique to set a default value for that field, preferably a space (I am running into weird formatting issues with CSS). The html form way of value="" doesn't work, neither does setting a default value in the XML schema. EXAMPLE: <xforms:input ref="clientaddress/streetaddress2" model="model_inventory" > <xforms:label>Street Address (Line 2)</xforms:label> Leaving this field blank results in <streetaddress2/> in the resulting xml document I want <streetaddress> </streetaddress>

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  • How can i take only integer input from keyboard and if input is invalid how do i ask user agaian

    - by fari
    This is what i have written so far but when exception is raised it does not again ask teh user for input. do{ System.out.println("Enter the number of stones to play with: "); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String temp=br.readLine(); }while (key<0 && key>9); if(key<0 || key>10) throw new InvalidStartingStonesException(key); player1=new KeyBoardPlayer(); player2 = new KeyBoardPlayer(); this.player1=player1; this.player2=player2; state=new KalaGameState(key); } catch(NumberFormatException nFE) { System.out.println("Not an Integer");} catch(IOException e) { System.out.println(e); }

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  • Best Practice - Validating Input In Simple GUI Application?

    - by Alex
    I'm writing a GUI app with wxwidgets in C++ for one of my programming classes. We have to validate input and throw custom exceptions if it doesn't meet certain conditions. My question is, what is best practice when it comes to this? Should I write a seperate function that checks for errors, and have my event handler's call that function? Or should I do my error-checking in my event handlers? Or does it really matter? Thanks!

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