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• Problems with overlapping ChildWindows in Silverlight

  - by Humanier

  Hello, I have a Silverlight application. At some point the app shows a ChildWindow with two datagrids and three buttons on it. One of the buttons is 'Reset To Defaults'. After it's pressed, the app shows another ChildWindow on top of the current one in order to ask confirmation. After the second ChildWindow is closed the first one starts to act funny. It's still changing highlighting of the elements on mouse events (mouseover on a grid element, click on a button). But clicking on the buttons doesn't fire my custom event handlers anymore. The only thing which is working on the ChildWindow is a small cross button created by the framework itself in the upper-right corner of the ChildWindow. I'd be grateful for any ideas on the cause of the problem or how to resolve it. Thanks.

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• Compiler #defines for g++ and cl

  - by DHamrick

  I am writing a program that is cross platform. There are a few spots where I have to specify an operating system dependent call. #ifdef WINDOWS ..do windows only stuff #endif #ifdef LINUX ..do linux only stuff #endif Are there any preprocesser directives that get defined by the compiler so I don't have to explicitly define them when I use the command line compiler. ie. cl -DWINDOWS program.cpp or g++ -DLINUX program.cpp I realize I could easily write a makefile or have a shell/batch script that will do this automatically. But I would prefer to use the same ones as the compiler (if they exist) by default.

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• Building a code search engine for java code in git repositories

  - by zero1

  I'm trying to build a Java code search engine. Apart from just searching for keywords, I would also like cross-referencing between classes to work. It should work the way eclipse's referencing works - click on anything to open the definition. Bonus would be if something like search-all-usages-of-foo works. I'm thinking of using Apache Solr to index the files and build the basic search. But I'm not sure how I'd do the crossreferencing part since Solr doesn't understand Java code. Any suggestions on what I could use here? EDIT: I mainly want to index a lot of java git repositories.

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• 3d / 2.5d game library for iphone and pc

  - by Aaron Qian

  I'm trying to make a 2d shooter game with 3d background. The player and enemies are essentially just quads with textures. The background will be simple 3d polygons with textures and some fog and light. Therefore, I don't need a really powerful 3d library. I tried Unity3D and Torque2D, but I don't like to use their GUI editors. I prefer to work with code. So, is there a cross platform (mainly windows and iPhone) 3d / 2.5d game library, commercial or open source? I assume it will be only limited to c, c++, and object-c due to apple's new ToS.

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• GWT - RichTextArea - ScrollTo

  - by Yanick Rochon

  If I have an RichTextArea like this : RichTextArea rta = new RichTextArea(); rta.setHTML("<p id=\"foo\">Foo</p>....<p id=\"bar\">Bar</p>"); If I extend the RichTextArea class, how would be the proper way (cross-browser wise) to write a scrollTo() method? Ex: class RichTextAreaExt extends RichTextArea { ... public native void scrollTo(String element) /*-{ // the underlaying DOMElement is an iframe, so.... }-*/; ... } Thanks!

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• What jquery based table plugin can hide sub rows?

  - by user1458290

  I'm in the need to convert excel macros into jquery code, the function is that you need to click on the plus sign to unfold and show the sub rows to modify column2 if you want to type values in column2, the other columns can't be modified. You can't straightly modify values of column2 until you unfold the parent row, because there are many sub rows belonging to parent row,say Car. The values of Name, Model, Code are existing, they are master data, no need to type or modify. please see the snapshot at folded and unfolded, besides modifying values in sub rows , I need to be able to know which sub rows are modified and values of those rows.Initially the editable columns are blank. And when you click on the minus sign, the sub rows can be folded again,but the modified values won't be lost,they are still there when unfolded again. One last requirement is it's cross devices, the code must run well on pc,mobile phone,pad. Is that possible? Many thanks.

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• MySQL inner join different results

  - by Darryl at NetHosted

  I am trying to work out why the following two queries return different results: SELECT DISTINCT i.id, i.date FROM `tblinvoices` i INNER JOIN `tblinvoiceitems` it ON it.userid=i.userid INNER JOIN `tblcustomfieldsvalues` cf ON it.relid=cf.relid WHERE i.`tax` = 0 AND i.`date` BETWEEN '2012-07-01' AND '2012-09-31' and SELECT DISTINCT i.id, i.date FROM `tblinvoices` i WHERE i.`tax` = 0 AND i.`date` BETWEEN '2012-07-01' AND '2012-09-31' Obviously the difference is the inner join here, but I don't understand why the one with the inner join is returning less results than the one without it, I would have thought since I didn't do any cross table references they should return the same results. The final query I am working towards is SELECT DISTINCT i.id, i.date FROM `tblinvoices` i INNER JOIN `tblinvoiceitems` it ON it.userid=i.userid INNER JOIN `tblcustomfieldsvalues` cf ON it.relid=cf.relid WHERE cf.`fieldid` =5 AND cf.`value` REGEXP '[A-Za-z]' AND i.`tax` = 0 AND i.`date` BETWEEN '2012-07-01' AND '2012-09-31' But because of the different results that seem incorrect when I add the inner join (it removes some results that should be valid) it's not working at present, thanks.

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• Creating Ruby applications for Windows.

  - by Omega

  I want to develop a Windows application. Honestly I care little about cross-platforms for now (but still would be good) I want to use Ruby, since it has quite a simple syntax and is so.. well, simple and easy to learn. My application is like a "game level creator", where you can design your own level and then run it with another application which is a "game level player" by reading the project file created by the creator app. You get the idea. Now, I got a new PC and is completely clean. Absolutely no trace of my old Ruby experiments and fails. First of all, I will need to choose a GUI platform for my Ruby application! Can you recommend me one? I have heard of Shoes and Tk, but want to know what you think.

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• Browser Compatablitiy, Support, Modern Browsers and older Versions.

  - by smoop

  This is a question to all web-developers working in the industry more than a few years. Today the server guy at my work told me that his browser didnt render a google font I used on a site properly, so I checked his browser - it was firefox 3.5. (google font Raleway).. This made me think.. I know for some of our sites its a requirement to support IE6 (larger corperate sites) but for the rest (personal sites) should I be looking at developing for all incrments of firefox, chrome, IE and safari???? Does your company still support IE6? Does your company support previous versions of modern browsers or just the latest ones? and finally, has anyone else had this problem with FF 3.5 and Google Hosted font Raleway..(the font displays extra extra thing so the font is almost unreadable) If anyones interested I found a working solution to my font problem here: http://www.jshsolutions.net/google-webfonts-cross-browser-fix-howto/ Sam

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• is XULRUNNER suitable as a replacement for other C++ desktop applications frameworks such as QT?

  - by Gabriel Cuvillier

  XulRunner/Gecko seems to be really interesting for developing gui-intensive applications (by using widely used technologies such as HTML / CSS / SVG / XUL / Javascript). But the underlaying C++ APIS (XPCOM, NECKO, ...) looks so old and complex. Moreover the general lack of documentation/developper tools is really frightening. On the other hand, QT have a quite nice platform, and is well documented and supported. The UI part is really "traditional" though. What are your experiences with XULRUNNER, specially compared to other C++ desktop applications frameworks such as QT/GTK/MFC...? What is missing? What is awesome? Side question: If I wanted to migrate an existing MFC app to a cross platform C++ desktop application framework, would it be wise to use XULRUNNER instead of QT or GTK?

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• Why does System.Threading.Timer callback successfully update UI?

  - by Geo P

  I have several System.Threading.Timers on my form application with callbacks that update the UI...successfully - i.e. without throwing errors. I had built these earlier, before I knew that UI should not be updated on any thread other than the UI thread. Now I am confused as to why it does not throw cross-thread exceptions when I am updating UI on these separate threading.timer threads? I will be changing these callbacks so that the UI updates are invoked on UI thread, but I am curious as to why this works. Edit: My application is a WinForms Application.

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• stop the CSS filter property cascading

  - by Ayoub

  I tried to make box-shadow affect work cross browsers, in order to make ie work I used "filter" property but the effect cascades to the child element (in my case a span) I tried to stop it by using filter : none but it didn't work searched the web but I couldn't find a solution. please help me solve this problem. HTML code : <div id="shadow"> <span>text text</span> </div> CSS code : #shadow{ -moz-box-shadow: 3px 3px 4px #000; -webkit-box-shadow: 3px 3px 4px #000; box-shadow: 3px 3px 4px #000; /* For IE 8 */ -ms-filter: "progid:DXImageTransform.Microsoft.Shadow(Strength=4, Direction=135, Color='#000000')"; /* For IE 5.5 - 7 */ filter: progid:DXImageTransform.Microsoft.Shadow(Strength=4, Direction=135, Color='#000000'); }

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• External GUI/Helper Library for Visual C++?

  - by Psychic

  I am looking for some kind of library, either open source or bought in, that provides advanced GUI components, helper functions & classes etc. It needs to be something that integrates relatively easily into Visual Studio, and should be based around C++ and Windows. Cross platform isn't needed, and can somtimes make things a little more complex and restricted than single platform, but it is still acceptable. It also needs to be up-to-date and active. There appears to be a number of 'retired' libraries that offer little or no support, so these would not be suitable, as I'm going to need help every now and then! It also needs good documentation. I know about wxWidgets but I'm wondering what other alternatives there are? At first glance, wxWidgets doesn't strike me as what I want/need, especially in the GUI area where the visual components seem striking similar to the stock components. I want more custimization! Is there much out there that meets these requirements?

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• Why does derivative trading position always require C++ knowledge?

  - by Jeffrey

  I’ve never worked in trading environment before and I was curious to see that few of the trading houses seem to use C# but most of them do heavily rely on C++. Why is it? Is it because C++ is better performance wise? Is it because of legacy code base? Is it because cross platform issue? What about dynamic languages (ruby, python)? Are they too slow for this kind of work in terms of performance? Updated: If realibility and performance are important would "Erlang" be the "next big thing" in trading platform?

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• How to iterate over every property of an object in javascript?

  - by OverloadUT

  Is there a way to iterate over every property of an object using the Prototype JavaScript framework? Here's the situation: I am getting an AJAX response in JSON that looks something like this: {foo: 1, bar: 2, barobj: {75: true, 76: false, 85: true}} If I evaluate that json response in to a variable response, I want to be able to iterate over each property in the response.barobj object to see which indexes are true and which are false. Prototype has both Object.keys() and Object.values() but oddly seems to not have a simple Object.each() function! I could take the results of Object.keys() and Object.values() and cross-reference the other as I iterate through one, but that is such a hack that I am sure there is a proper way to do it!

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• ActiveX doesn't show up in Browser

  - by Boller

  Hi, i'm trying to put an activeX object on an asp-webpage. it already worked good a week ago, but now the object isn't showing up anymore. already made a little asp testing-project....just an asp-page and a activex control, containing a button and a label. but when i call up the page in the browser, there is only a white area with a little icon in the upper left corner, showing a red dot, a green triangle and a blue rectangle.... what does that mean? object not found? object blocked by IE? or what exactly does this icon stand for? i always thoght that an missing object is represented by an empty area with a little red cross in it. =/

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• Android and Layouts

  - by davs

  Hi all, I need your help! I need to locate text on view as showed on the picture: text 'Some more text' should be located in bottom|center_horizontal text 'Short text' should be located on with align right, but about 10% from the top of the screen text 'x.x.x.x' should be aligned to the center of the screen (right/bottom align of the 1st quater) text 'Some long text ..' should be aligned to the top/left of the 3-rd quater of the screen, but it should cross the center_horizontal of the screen eh ... something like this .. I hope, you're understand me :) Please, help me!!! Thanks for your help!

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• Crystal Report with mutliple row columns.

  - by Jack

  I'm not sure if the title properly explains what I'm trying to do. I'm trying to move from using SQL Reporting Services to a Crystal Reports Web App. I've gotten some reports to design properly because they are simple cross-tab reports that require nothing special. I'm running into a little problem of a user matrix report. Here's how the report looks on SQL Reporting Services: group1 group2 group3 username1 first1 last1 title1 X X username2 first2 last2 title2 X X 2 1 1 Normally in VS2008 with a SQL rdl, I would right click on the row and Insert Column. However, i don't see a way to do this in Crystal Reports. I've tried setting up multiple row groups, but that adds mutliple groupings like: group1 Total ... Username Total ... first Total ... last ...

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• Best Practice: Accessing radio button group

  - by seth

  Looking for the best, standards compliant, cross browser compatible, forwards compatible way to access a group of radio buttons in the DOM (this is closely related to my other most recent post...), without the use of any external libraries. <input type="radio" value="1" name="myRadios" />One<br /> <input type="radio" value="2" name="myRadios" />Two<br /> I've read conflicting information on getElementsByName(), which seems like the proper way to do this, but I'm unclear if this is a standards compliant, forwards compatible solution. Perhaps there is a better way?

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• Denormalize for Simplicity: Ungood idea?

  - by yar

  After reading this question, I've learned that denormalization is not a solution for simplicity. What about this case? I have news-articles which have a list of sites-article-will-be-published-to. The latter can be expressed in normalized fashion either by table and a many-to-many relationship (via a cross-table, I think). But the simple solution is to just throw a bunch of booleans for the sites-article-will-be-published-to. Assuming the sites are: small in number will not change over time have no fields themselves, except a name Is this still a terrible idea? The many-to-many relationship seems somewhat cumbersome, but I've done it before in cases like this (and it seemed cumbersome). Note: I'm doing this in Rails, where it's not that painful.

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• What grid distributed computing frameworks are currently favoured for trading systems

  - by Rich

  There seems to a quite a few grid computing frameworks out there, but which ones are actually being used to any great extent by the investment banks for purposes of low latency distributing calculation? I'd be interested to hear answers covering both windows,Linux and cross platform. Also, what RPC mechanisms seem to be favoured most? I've heard that for reason of low latency and speed, the calculations themselves are quite often written in C++/C as calculations running on VMs are several orders of magnitude slower than native code. Does this seem to be a common scenario in practice? e.g distributed .NET grid framework running calculations written in native c++/c?

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• Windows Services -- High availability scenarios and design approach

  - by Vadi

  Let's say I have a standalone windows service running in a windows server machine. How to make sure it is highly available? 1). What are all the design level guidelines that you can propose? 2). How to make it highly available like primary/secondary, eg., the clustering solutions currently available in the market 3). How to deal with cross-cutting concerns in case any fail-over scenarios If any other you can think of please add it here .. Note: The question is only related to windows and windows services, please try to obey this rule :)

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• Is is possible to parse a web page from the client side for a large number of words and if so, how?

  - by Technoh

  I have a list of keywords, about 25,000 of them. I would like people who add a certain < script tag on their web page to have these keywords transformed into links. What would be the best way to go and achieve this? I have tried the simple javascript approach (an array with lots of elements and regexping/replacing each) and it obviously slows down the browser. I could always process the content server-side if there was a way, from the client, to send the page's content to a cross-domain server script (I'm partial to PHP but it could be anything) but I don't know of any way to do this. Any other working solution is also welcome.

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• Project Euler #163 understanding

  - by Paul

  I spent quite a long time searching for a solution to this problem. I drew tons of cross-hatched triangles, counted the triangles in simple cases, and searched for some sort of pattern. Unfortunately, I hit the wall. I'm pretty sure my programming/math skills did not meet the prereq for this problem. So I found a solution online in order to gain access to the forums. I didn't understand most of the methods at all, and some just seemed too complicated. Can anyone give me an understanding of this problem? One of the methods, found here: http://www.math.uni-bielefeld.de/~sillke/SEQUENCES/grid-triangles (Problem C) allowed for a single function to be used. How did they come up with that solution? At this point, I'd really just like to understand some of the concepts behind this interesting problem. I know looking up the solution was not part of the Euler spirit, but I'm fairly sure I would not have solved this problem anyhow.

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• How to make an application scriptable in Linux

  - by arx

  I've written an application in C++ that takes a complex binary file format and translates it into human-readable text. Having edited the text you can recompile it back into the binary file format. This would be more useful if the application's internal object model was scriptable. On Windows I'd expose the objects using COM or .Net but I want this to work on Linux. I could embed a scripting language but that's a fair bit of work, and limits users to the scripting language I choose. Ideally, I'm looking for some way of exposing a scriptable DOM from my application that is: Widely support in scripting languages (without writing language-specific wrappers) Cross-platform (but Linux support is most important) In-process (but this isn't essential)

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