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  • Two Values Enter, One Value Leaves

    - by Bunch
    This is a fairly easy way to compare values for two different controls. In this example a user needs to enter in a street address and zip code OR pick a county. After that the application will display location(s) based on the value. The application only wants a specific street/zip combination or a county, not both. This code shows how to check for that on an ASP.Net page using some JavaScript. The control code: <table>     <tr>         <td>             <label style="color: Red;">Required Fields</label>         </td>         <td style="width: 300px;">             <label style="color: Red; font-weight: bold;" id="reqAlert" ></label>         </td>     </tr>     <tr>         <td>             <asp:Label ID="Label3" runat="server" Text="Street Address"></asp:Label>         </td>         <td style="width: 200px;">             <input id="Street" type="text" style="width: 200px;" />         </td>     </tr>      <tr>         <td>             <asp:Label ID="Label5" runat="server" Text="Zip Code"></asp:Label>             &nbsp;         </td>         <td style="width: 200px;">             <input id="Zip" type="text" style="width: 200px;"/>         </td>     </tr>     <tr>         <td>             <label style="color: Red; font-size: large;">-- OR --</label>         </td>     </tr>     <tr>         <td>             <asp:Label ID="Label2" runat="server" Text="County"></asp:Label>         </td>         <td style="width: 200px;">             <asp:DropDownList ID="ddlCounty" runat="server">                 <asp:ListItem Value="0" Text="" />                 <asp:ListItem Value="1" Text="County A" />                 <asp:ListItem Value="2" Text="County B" />                 <asp:ListItem Value="3" Text="County C" />                                </asp:DropDownList>         </td>     </tr> </table> <input id="btnMapSearch" type="button" value="Search" onclick="requiredVal()" class="actionButton" /> The onclick for the button runs the requiredVal javascript function. That is where the checks take place. If only one item (street/zip or county) has been entered the application will carry on with it’s locateAddr function; otherwise it will show an error message in the label reqAlert. The javascript: function requiredVal() {     var street = document.getElementById("Street").value;     var zip = document.getElementById("Zip").value;     var countyDdl = document.getElementById("ctl00_Content_ddlCounty");     var county = countyDdl.options[countyDdl.selectedIndex].text;     var reqAlert = document.getElementById("reqAlert");     reqAlert.innerHTML = '';   //clears out any previous messages     if (street != '' || zip != '') {         if (county != '') {             reqAlert.innerHTML = 'Please select only one required option';  //values for both were entered         }         else {             locateAddr();         }     }     else if (street == '' && zip == '' && county == '') {         reqAlert.innerHTML = 'Please select a required option';  //no values entered     }     else {         locateAddr();     } } Technorati Tags: ASP.Net,JavaScript

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  • reading parameters and files on browser, looking how to execute on server

    - by jbcolmenares
    I have a site done in Rails, which uses javascript to load files and generate forms for the user to input certain information. Those files and parameters are then to be used in a fortran code on the server. When the UI was on the server (using Qt), I would create a parameters file and execute the fortran code using threads so I wouldn't block the computer. Now that is web-based, I need to make the server and browser talk. What's the procedure for that? where should I start looking? I'm already using rails + javascript. I need that extra tool to do the talking, and no idea where to start.

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  • Flattening System.Web.UI ControlCollection

    - by evovision
    Hi,   Sometimes one may need to get a list of child controls inside specific container and don't care about the underlying hierarchy.   The result is beautifully achieved using this extension method:   using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;    public static class ControlCollectionExtensionMethods    {        public static IEnumerable<Control> FlattenedList(this ControlCollection controls)        {            foreach (Control ctrl in controls)            {                  // return parent control                   yield return ctrl;                              // and dive into child collection                   foreach (Control child in ctrl.Controls.FlattenedList())                         yield return child;            }        }    }   P.S.: don't forget about namespaces when using it in your code, if above class is wrapped into namespace, for example: Sample, the source code file with calling code must explicitly reference it: using Sample;

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  • How to populate a form list with buttons using javascript

    - by StealingMana
    I made a script that, when you press one button(accessories) the selection(mylist) populates with one array(accessoryData), and when you hit the other button(weapons) the other array(weaponData) populates the selection. However, in the current state of the code the second button press is not re-populating the selection. What is wrong here? Also if there is a more efficient way to do this, that might be helpful. Full code function runList(form, test) { var html = ""; var x; dataType(test); while (x < dataType.length) { html += "<option>" + dataType[x]; x++; } document.getElementById("mylist").innerHTML = html; }

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  • Comment l'analyse statique moderne peut-elle faciliter la vie des développeurs ? Découvrez la solution de Coverity, utilisée par le CERN

    Webinar : comment l'analyse statique de dernière génération peut-elle faciliter la vie des développeurs ? Découvrez la solution de Coverity, utilisée par le CERN Dans un monde où un bug mineur peut avoir des effets dévastateurs, les outils d'analyse statique d'ancienne génération s'avèrent souvent incapables de détecter les vrais défauts de code, difficiles à identifier. Mais des outils modernes d'analyse statique de code existent, permettent de détecter ces défauts critiques et potentiellement dommageables tôt dans le cycle de développement, permettant ainsi de réduire les coûts, les délais et les risques liés aux erreurs logicielles. Coverity Static Analysis est l'une de...

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  • Do you feel that you, as a programmer, make a difference?

    - by gablin
    When I graduate from uni my desire is to land a job where I feel that what I do as a programmer makes a difference and contribute to the project. My code, no matter how small, is useful to the project, is being used by the project, and takes it forward. My work matters and thus I feel that I make a difference. In contrast, one of my fears is that my work just doesn't matter. Either it is just meaningless to the project but you're told to do it anyway, or your code is useful but not used in the project, or you feel that the project as a whole is just pointless, for whatever reason. Is this something that you've experienced, or are experiencing? Do you feel that you, as a programmer, make a difference, or do you feel that what you do just doesn't matter?

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  • Getting collision detection in Pygames

    - by user36010
    I am writing a game in Pygame, I want to get collision detection. The aim is when a object hits another, the target object disappears. I want to avoid having classes and just have my code class less for now, in one script. This makes it difficult to get collision detection because the Rect method in Pygame is called on by an object(class). The logic I want to achieve is: object hits a target object target object disappears. is there an easy way to achieve this?(with minimal code possible)

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  • How do you usually manage callbacks in Java using Swing library?

    - by none
    I'm quite new to the Java Swing programming, and GUI development as well. As a beginner, I'm currently reading Design Pattern, but finding what I'm looking for is quite hard, most of the times. So far, I've never had huge problems defining a view hierarchy - I just use to subclass component from component. But the hard-to-do here is how managing callbacks, which often become hard to maintain due to the hard code. During my last projects, I tried to separate GUI, Listener and Callbacker objects which cooperated together, but in this way it was really hard adding new features. So, which kind of best patterns or best practices do you tend to use when trying to maintain, add new features or even worst avoid to hard-code classes which manage callbacks method in this kind of frameworks (mainly Java Swing)?

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  • Que pensez-vous du langage XML, faut-il passer à autre chose ?

    Bonjour, Ca y est. Au plaisir d'ouvrir un livre Java récent et de découvrir qu'un mot-clé supplémentaire (pour les pratiquants, une annotation) dans mon code source saura remplacer un fichier XML dont la présence était auparavant obligatoire, je me dis que nous sortons peut être d'une période où tout n'était qu'XML. Jusqu'à l'indigestion. Il y en eu partout et pour tout. Si pour l'échange de données entre systèmes il avait des atouts certains, je défends la thèse qu'il a été utilisé abusivement. Le paramétrage des composants, par exemple, est trop souvent passé par lui. Et cela a mené à des situations extrêmes. Il devenait parfois plus délicat de réussir son XML de paramétrage ou de compilation que le propre code source que l'on v...

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  • New Window Via JavaScript Clears Parent

    - by Bunch
    This is not a new item at all but I came across it recently. For an app I had been using some JavaScript like: javascript:window.open(someurl.aspx here) to open a new window via a button. That bit of code had been working great in several other apps. Then in one app that same code decided to open the new window correctly while clearing the parent of everything but [object]. The fix ended up being simple, change the javascript to: javascript:void(window.open(someurl.aspx here); Then it worked like I thought it should. Tags: ASP.Net, JavaScript

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  • possible missing firmware

    - by pdd
    the other day i removed my linux-firmware package by mistake, i tried reinstalling it but i get this error: E: /var/cache/apt/archives/linux-firmware_1.60_all.deb: trying to overwrite '/lib/firmware/rt73.bin', which is also in package firmware-ralink 0.14+lenny2 the code from the terminal is: (Reading database ... 235747 files and directories currently installed.) Unpacking linux-firmware (from .../linux-firmware_1.60_all.deb) ... dpkg: error processing /var/cache/apt/archives/linux-firmware_1.60_all.deb (--unpack): trying to overwrite '/lib/firmware/rt73.bin', which is also in package firmware-ralink 0.14+lenny2 No apport report written because MaxReports is reached already dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Errors were encountered while processing: /var/cache/apt/archives/linux-firmware_1.60_all.deb E: Sub-process /usr/bin/dpkg returned an error code (1) A package failed to install. Trying to recover:

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  • Programming tourism

    - by Andrew_B
    I'm going on vacation to Paris, France for 10 days. Actually, it's my girlfriend's wish to go there but I'm not very interested in visiting, sightseeing, etc. Recently, I came up with an idea of trying to do something like programming tourism. :) I'd like to do something related to programming in a startup-like company. I do not want a salary or any kind of compensation. I want to overview process, social aspects, environment and "what it feels like" to development software in another country. I'm from Russia. I've been a software developer since 2003. I prefer C#4 but I'm ready to use anything Turing-complete. I have some MS certifications and am familiar with all .NETs since 1.1. Currently I'm finishing PhD in CS. I'm interested in multidimensional indexing and I can turn any piece of data and code to OLAP system. :) But it'd take too much time. What can I do? I have no more than one week. I want a totally complete project in a short amount of time. Implement some features in well-tested project Do a code review Debug memory, performance and concurrency issues Do unit testing So, about the questions: Is it legal? I'm ready to sign NDA if it's necessary. I'll have tourist visa. Is it possible? I'm really sure that bureaucratic companies with lots of HRs and PMs will not allow such experiments. But small companies can afford it. I'm ready to guarantee support on my code after leaving home :) P.S. I still havn't started learning French :) I hope it will not take too much time :) P.P.S. Yes, it's girlfriend-approved. What's in it for me? It's fun. It's fun to see new systems and people who created them. It's fun to complete meaningful things. Quickly. What's in it for them? Feature, debug, review or test. If my short-term colleagues will like this style of working I can invite them to make same trip into my company :) I think in Russia it's even more exciting :)

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  • Book Review: Silverlight 4 Business Application Development

    I normally don't do book reviews here but this book is kind of cool and what I'm looking for. Silverlight 4 Business Application Development, here is a book that is kind of not so much on the UX side but what stands out about this book is the fact that it is more pictures and code then text especially when compared to a regular book. For me in particular this is awesome as Im more into pictures and code samples. Much like a recipe book this kind of thing is right up my ally so I can focus on making...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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  • How to redesign the UI of a large project?

    - by jem88
    I'm currently working at a quite big Android project (a social network, you can see it here if is useful to answer the question). We decided to restyle the whole app, changing all the UI design. The code I actually have is complex, there are many controllers, and it's a little messy too. Is it "better" in terms of time and code cleanliness to take one controller per time, and rewrite it entirely, or to modify one controller per time? The layout change entirely anyway, so for that I know I've to restart from scratch. Maybe it could seem a stupid question, but with the "time" variable I really can't see the best way.

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  • Get exact time of each click - AdWords

    - by almo
    I have an AdWords campaign running and want to get a list with all clicks and the exact time the click occured. And I want to do this without having a tracking code on my homepage. So it needs to be via the API (AdWords/Analytics). You might think know that this is not possible. But big Bid Management tools (e.g. Kenshoo) know all details of every click and they don't have tracking code of my website (only on the success page of my contact form). How is that possible? The dimensions in AdWords only let me group the clicks at the hour level.

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  • Good places for starting to learn Lua scripting [closed]

    - by Cascalho
    I want to start learning to script in lua for game development. I could start with the official Lua tutorials, but I would rather study scripts that were written specifically for games and learn the syntax from there as I believe this is faster and more related to what I want. Can you recommend tutorials in video or text that are very detailed in explaining the code? Or some open source game with heavily commented code? What I want is something detailed that walks me through it, so I start understanding both the syntax and how each piece relate to each other, like "First of all, install this, this and that." "So, here we are defining a new function that will make the player jump." "This is the main script that calls the other ones. It defines these variables." "This function tests if the player is alive."

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  • Algorithm to generate N random numbers between A and B which sum up to X

    - by Shaamaan
    This problem seemed like something which should be solvable with but a few lines of code. Unfortunately, once I actually started to write the thing, I've realized it's not as simple as it sounds. What I need is a set of X random numbers, each of which is between A and B and they all add up to X. The exact variables for the problem I'm facing seem to be even simpler: I need 5 numbers, between -1 and 1 (note: these are decimal numbers), which add up to 1. My initial "few lines of code, should be easy" approach was to randomize 4 numbers between -1 and 1 (which is simple enough), and then make the last one 1-(sum of previous numbers). This quickly proved wrong, as the last number could just as well be larger than 1 or smaller than -1. What would be the best way to approach this problem? PS. Just for reference: I'm using C#, but I don't think it matters. I'm actually having trouble creating a good enough solution for the problem in my head.

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  • Le projet PHP migre sur Git, les tags des futures release seront signés par l'équipe de développement elle-même

    Le système de gestion de version Git vient de recevoir un nouveau "membre" : il s'agit du projet PHP qui vient de migrer complètement son code source sur cette plate-forme comme on peut le lire sur leur site web . Il est donc désormais possible de cloner ou de "forker" les sources de PHP depuis son miroir GitHub. De même les requêtes Pull faites via GitHub sont désormais prises en charge. Le code source est également disponible via le lien suivant et toutes les instructions relatives au clonage de l'arbre des sources de PHP peuvent être consultées sur le lien suivant .

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  • Printing Tip Handling User Initiated Dialogs Exceptions

    I see this question every so often so it makes sense to share it through a quick post. When using the print API in Silverlight 4 you can run into the dreaded exception: System.Security.SecurityException: Dialogs must be user-initiated Then you examine your code and confirm that your code where you invoke the PrintDocuments Print method are indeed being handled by a user-initiated event. If you are not invoking Print in a user-initiated event then your know your solution :) Here is some sample...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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  • Testability &amp; Entity Framework 4.0

    This white paper describes and demonstrates how to write testable code with the ADO.NET Entity Framework 4.0 and Visual Studio 2010. This paper does not try to focus on a specific testing methodology, like test-driven design (TDD) or behavior-driven design (BDD). Instead this paper will focus on how to write code that uses the ADO.NET Entity Framework yet remains easy to isolate and test in an automated fashion. Well look at common design patterns that facilitate testing in data access scenarios...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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  • Naming convention: field starting with "m" or "s"

    - by Noya
    Hope this question hasn't posted yet... I saw lot of code (for example some Android source code) where fields name start with a "m" while static fields start with "s" Example (taken from Android View class source): private SparseArray<Object> mKeyedTags; private static int sNextAccessibilityViewId; I was wondering what "m" and "s" stand for... maybe is "m" mutable and "s" static? Since it seems that is a largely adopted pattern do you know if there some literature about this kind of naming convention?

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  • UK Data Breaches Up by 10 fold in 10 years.

    - by TATWORTH
    At http://www.v3.co.uk/v3-uk/news/2201863/uk-data-breaches-rocket-by-1-000-percent-over-past-five-years there is an interesting report on the increase in data breaches reported in the UK.A lot of this increase may simply a change in legislation that has made reporting a statutory obligation.Some questions to ask yourself:Are server logs checked for untoward activity?Do you have a reporting policy if something is amiss?Did you design security in for the start of your application design?Do you log for example failed logons?Do you run tools to check for code integrity?Is my defense, a strategy of defense in depth?Do you realise that 60% of hack attacks are internal?Whilst SQL Injection is a problem that affects practically all application code platforms, within Microsoft Applications do you run FXCOP? Do you run any of the other free tools for checking?

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  • Writing long line support for text editor

    - by Mathematician82
    I know that some some text editors have problems to show long lines https://bugzilla.gnome.org/show_bug.cgi?id=172099 . What is the best way to fix the bug or are they equally well? Modify the GTK+ source code and add a support for long lines. Modify the text editor source code such that it does not use GTK+ if it meets a long line. Split the long lines into part (maybe by cut on the Bash ) I'm just a junior programmer so I don't know what people does when they meet a bug that is on the library they use.

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