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  • Tutorials for .NET database app using SQLite

    - by ChrisC
    I have some MS Access experience, and had a class on console c++ apps, now I am trying to develop my first program. It's a little C# db app. I have the db tables and columns planned and keyed into VS, but that's where I'm stuck. I'm needing C#/VS tutorials that will guide me on configuring relationships, datatyping, etc, on the db so I can get it ready for testing of the schema. The only tutorials I've been able to find either talk about general db basics (ie, not helping me with VS/C#), or about C# communications with an existing SQL db. Thank you. (In case it matters, I'm using the open source System.Data.SQLite (sqlite.phxsoftware.com) for the db. I chose it over SQL Server CE after seeing a comparison between the two. Also I wanted a server-less version of SQL because this little app will be on other people's computers and I want to to do as little support as possible.)

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  • OutOfMemoryError what to increase and how?

    - by Pentium10
    I have a really long collection with 10k items, and when running a toString() on the object it crashes. I need to use this output somehow. 05-21 12:59:44.586: ERROR/dalvikvm-heap(6415): Out of memory on a 847610-byte allocation. 05-21 12:59:44.636: ERROR/dalvikvm(6415): Out of memory: Heap Size=15559KB, Allocated=12932KB, Bitmap Size=613KB 05-21 12:59:44.636: ERROR/AndroidRuntime(6415): Uncaught handler: thread main exiting due to uncaught exception 05-21 12:59:44.636: ERROR/AndroidRuntime(6415): java.lang.OutOfMemoryError 05-21 12:59:44.636: ERROR/AndroidRuntime(6415): at java.lang.AbstractStringBuilder.enlargeBuffer(AbstractStringBuilder.java:97) 05-21 12:59:44.636: ERROR/AndroidRuntime(6415): at java.lang.AbstractStringBuilder.append0(AbstractStringBuilder.java:155) 05-21 12:59:44.636: ERROR/AndroidRuntime(6415): at java.lang.StringBuilder.append(StringBuilder.java:202) 05-21 12:59:44.636: ERROR/AndroidRuntime(6415): at java.util.AbstractCollection.toString(AbstractCollection.java:384) I need step by step guide how to increase the heap for and Android application. I don't run the command line.

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  • CAB file for X86 and X64

    - by ramanakumar
    HI I have created a CAB file for an ActiveX component which is wrapper around a .Net Libray. Here the .Net Library is refering some third party components which are actually build in (X86 or X64) No Any CPU. So My Cab file should be intelligent enogh to install eigther X86 or X64 depending on the client ( Browser) I Know the change should be in the INF file. As i am new to thsi Interoperabilit technology. Please guide me in solving this problem. Thanking you.

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  • Did we really always need to use Ruby/ rails plugin?

    - by Devlim
    I been intersted in ruby and rails lately but what I always encounter in blog/ podcast / book is they will always teach how to use ruby or rails plugin/ ruby instead of writing one. Did we really always need to use plugin, even thing like authorization? Authenticate? Is it really waste time Or hard to write from start? Then if it hard and waste time why rails say make web development less painful? Or I was wrong in term of concept? Goal ? Or anything else? Of rails? Anyone can guide me ?

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  • How do you test your blackberry application on the device?

    - by Kai
    This may sound very noobish, but I can't seem to get my app to my blackberry. I was trying to follow the beginning blackberry development book's guide, but maybe I just missed the point somewhere. For remote download, Is it really as simple as drop the COD and JAD files in the same folder on your server then just navigate to the URL with your device's browser? The book says it should prompt a download screen, but all I get is a page full of cryptic characters. My app is a simple slideshow. Uses no signed things and is not MDS enabled. Did I forget something? Any help would be appreciated. Thanks

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  • Kohana3 Route with Subdirectories in Controller Folder

    - by ahmet2106
    Hello everybody I'm using Kohana for so long, but the new Version is a litte bit other. My problem with an example: classes/ controller/ pages.php pages/ imprint.php I want to change my Route so, that if i call domain.tld/pages, the pages.php should called with action_index(). But if i call domain.tld/pages/imprint, pages/imprint.php should called with action_index() (and this should work too: pages/imprint/demo - action_demo() in pages/imprint.php) Tried this with bootstrap and http://kohanaframework.org/guide/api/Route this examples, but cant get it work. How can i make this? Any help? Thanks Closed: was my fault The Route::set('pages'...) must be before Route::set('default'...);

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  • Man pages for libvlc

    - by mawia
    Hi! all. Though I am not sure wether this question belongs to here but pardon me if not so. Can you people guide me to the manual page of libvlc functions like(just give a kind of pointer where these functions are described in detail) void libvlc_playlist_pause( libvlc_instance *, libvlc_exception ) mtime_t libvlc_input_get_length( libvlc_input_t *, libvlc_exception ) mtime_t libvlc_input_get_time( libvlc_input_t *, libvlc_exception ) void libvlc_input_set_time( libvlc_input_t *, mtime_t , libvlc_exception ) float libvlc_input_get_position( libvlc_input_t *, libvlc_exception ) void libvlc_input_set_position( libvlc_input_t *, float , libvlc_exception ) void libvlc_set_rate( libvlc_input_t *, float rate, libvlc_exception ) float libvlc_get_rate( libvlc_input_t *, libvlc_exception ) libvlc_input_get_information( libvlc_input_t *, libvlc_exception ) In particular can you please describe the functioning of libvlc_playlist_pause.I am using this in my aplication to run a video stream.My video is running but since video file is coming over a network I need to pause the player for a particular amount till enough data is buffered. With regards Mawia

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  • Clearquest Database Timeout

    - by onaclov2000
    I have a tool that is setup to query our Clearquest Database to return information to the user automatically every 9000 milliseconds. I came in today and the connection had timed out over the weekend, I found in the oSession object a "check heartbeat" function, but I'm not sure that is what I want to use to determine if i need to "re-login", I saw a db.timeoutinterval, but I can't seem to find any good reference on how to call it, since the oSession Object doesn't actually call it, and any references in the API guide mention it with regard to actually creating the db using the adminsession object. What "object" do I need to create to access the timeout interval and how? Thank you for the help! Or is it better to use the "check heartbeat function" and will it return a true or false depending on current state of login?

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  • Getting started with Windows Azure

    - by jonhobbs
    Hi All, I'm going to sound like a complete newbie here but here goes... I've just signed up for a Windows Azure account and was hoping to get a simple hello world aspx page up and running in a browser to see how it all works but I can't seem to find a simple guide to getting a very simple web application running. I've got as far as setting up a "service" and going onto the "deploy" page but it's asking me upload an "application package". I've looked on MSDN but there aren't any simple guides, just reams of documentation talking about "roles" and "development fabric". For somebody that is proficient in HTML/CSS and knows a little abit about asp.net it may just as well be in another language. So, does anybody know how to upload a simple aspx page and then access it in a browser? Jon

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  • public key email encryption

    - by anatak
    Who has their email fully encrypted ? I would like to encrypt my email but I am not sure how to start. If I use encrypted email and I send an email to someone who does not encrypt his email how can the receiver read the email ? What email client would you recommend to run on a windows systems for encrypted email ? I am using Thunderbird at the moment. As I understand you have to generate 2 keys (one public and one private) but how do you generate this key? I also think that you have to put your key somewhere to download but I don't understand how you can trust the downloaded keys. Any links to a good (not too complicated) guide about the working an implementing of email encryption would be very much appreciated. kind regards wim hendrix anatak

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  • No styles / images on asp.Net MVC 2 application

    - by xenolf
    Greetings i have a little problem with my ASP MVC application. On my local development server everything works just fine but when i try to publish the application to an IIS 7.0 server it just displays plain pages without any styles / markups / images. I put all those things in the /Content/ subfolder but when i try to access that folder on the production server it just returns me a 404 not found error. I set the IIS server up with .Net 4.0 and followed the deployment guide on here: http://www.asp.net/learn/mvc/tutorial-08-cs.aspx All views / controllers / classes seem to work just fine, the only thing which does not is the content subfolder and i cant see why. Anyone got a suggestion what i could have overlooked or does anyone know that problem?

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  • Does WCF always use SOAP to send information over your binding?

    - by SLC
    I understand you can choose from a range of bindings, such as TCP, HTTP, HTTPS etc. Am I correct in thinking it always uses SOAP to send data over this connection? I am watching a guide to WCF and it is talking about how exceptions are serialized into SOAP and sent to the client. I would have thought that not all bindings would use SOAP to send data, so I am a bit confused about how it works. Although I understand the fundamentals of WCF, how to set up services and use a proxy on the client, it doesn't seem to have explained exactly how the data is packaged up to send. Perhaps the answer is obvious, that it just uses XML / SOAP, but I would love to know for sure!

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  • What is the delegate method that is called when an MKPinAnnotationView is touched?

    - by Jake Schwartz
    I have been searching for this all night and I have just so frustrated. When a MKPinAnnotationView is clicked, the name and the subtitle comes up. I also want to center that point on the view. I figured there was some method I had to override because the information that pops up happened without me having to code it. Hopefully this was clear enough for you all. And in the mean time, I feel like there is some hidden guide on this use of MKMaps and other classes. Either that or it is terribly documented because I am having a lot of trouble finding information. Thanks.

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  • Creating a specialised view filtering form in Rails

    - by Schroedinger
    G'day guys, I have a current set of data, and I generate multiple analyses of this data (each analysis into its own active record item called a pricing_interval) using a helper function at the moment. Currently to analyse the set of data, you need a start time(using datetime_select) an integer (using text_field) and a name (using text_field) I would like on submission of the form to be redirected to the index page of my pricing_interval, as the values will be re-generated. Manually generating a range proves that my helper methods work. How would I build a form that on submit would send parameters to a function in the form of (date,integer,name) so that it could immediately begin work whilst redirecting the user to server/pricing_intervals Anything at all would help, I've spent hours over the past few days trying to get the rails form syntax working properly to no avail, a really straightforward guide to what I would implement to get this working would be amazingly appreciated. I've looked through the form guides, as I'm not creating an object, but merely parsing params, there's got to be an easy way to do this, right?

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  • .Net reflection to get description of class / property etc?

    - by ClarkeyBoy
    Hi, I know its unlikely but I was wondering if there is any way to get the comments (i.e. the bits after the ''') of a class or property..? I have managed to get a list of properties of a class using the PropertyInfo class but I cant find a way to get the comments / description.. I need it for a guide I am writing for the administrators of my site - it would be great if it could automatically update if new properties are added, so there is no need to worry about updating it in the future too much. Anyone know how to do this? Thanks in advance. Regards, Richard

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  • How to use V8's built in functions

    - by Victor jiang
    I'm new in both javascript and V8. According to Google's Embedder's Guide, I saw something in the context section talking about built-in utility javascript functions. And I also found some .js files(e.g. math.js) in the downloaded source code, so I tried to write a simple program to call functions in these files, but I failed. Does a context created by Persistent<Context> context = Context::New() have any built-in js functions? How can I access them? Is there a way to first import existing js files as a library(something like src="xxx" type="text/javascript" in HTML page) and then run my own execute script? Can I call google maps api through the embedded V8 library in app? How?

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  • ANTLR parser hanging at proxy.handshake call

    - by Peter Boughton
    I am attempting to get a basic ECMAScript parser working, and found a complete ANTLR grammar for ECMAScript 3, which appears to compile ok and produces the appropriate Lexer/Parser/Walker Java files. (Running inside ANTLR IDE plugin for Eclipse 3.5) However, when actually trying to use it with some simple test code (following guide on ANTLR wiki), it just hangs when trying to create the parser: CharStream MyChars = new ANTLRFileStream(FileName); // FileName is valid ES3Lexer MyLexer = new ES3Lexer(MyChars); CommonTokenStream MyTokens = new CommonTokenStream(MyLexer); MyTokens.setTokenSource(MyLexer); ES3Parser MyParser = new ES3Parser( MyTokens ); // hangs here ES3Parser.program_return MyReturn = MyParser.program(); I've tracked down the problem to inside the ES3Parser constructor, where it's calling the function proxy.handshake() - before this line I can successfully do System.out.println("text") but after it I get nothing. So, how do I go about finding out why it's hanging, and stopping it - or even just bypassing this section (can/should I disable debugging?) - so long as that lets it work and allows me to get on with doing useful stuff.

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  • How to integrate pep8.py in Eclipse?

    - by DZPM
    A little background: PEP 8 is the Style Guide for Python Code. It contains the conventions all python programmers should follow. pep8.py is a (very useful) script that checks the code formating of a given python script, according to PEP 8. Eclipse is a great IDE. With the Pydev extension, it that can be used to develop Python I run pep8.py manually when I'm scripting, but with bigger projects I prefer to use Eclipse. It would be really useful to integrate pep8.py in Eclipse/Pydev, so it can be run automatically in all the files in the project, and point to the lines containing the warnings. Maybe there is an obvious way to do it, but I haven't found it yet. Question is: How to integrate pep8.py in Eclipse?

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  • How to set my .apk file to run on different screen resolution in android?

    - by Arslan
    I am using a "WVGA800" for my app. I try to run it on different resolution screens. It it is not perfectly scratching in that resolution . I read and implement issues form this link. http://developer.android.com/guide/practices/screens_support.html But still not result. Please let me know if any one hase a perfect solution. Main issue are that I am fixing hight & width of Image, textsize etc. When these are displayed to screen of "WVGA800". But when I test them on "HVGA", "QVGA" then problem arise. I want to avoid the "if else" conditions by getting the screen resolution at Runtime. If any one hase any solution for this...let me know. Thanks in advance. I am also wondring when there will be new devices with new screen resolutions?

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  • byte[] operations in Java

    - by kape123
    Let's say I have array of bytes: byte[] arr = new byte[] { 0, 1, 2, 3, 4 }; Does platform has functions that I can use to play with this array - for example, how to invert it (get 4,3,2,1,0)? Or, how to invert part of it (2,1,0,3,4)? Get part of array (0,1,2,3)? I know I can manually write functions but I am curious if I'm missing useful util functions in platform that I should know about (and couldn't find any useful guide using google). Thanks!

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  • Tutorial for Quick Look Generator for Mac

    - by vgm64
    I've checked out Apple's Quick Look Programming Guide: Introduction to Quick Look page in the Mac Dev Center, but as a more of a science programmer rather than an Apple programmer, it is a little over my head (but I could get through it in a weekend if I bash my head against it long enough). Does anyone know of a good basic Quick Look Generators tutorial that is simple enough for someone with only very modest experience with Xcode? For those that are curious, I have a filetype called .evt that has an xml header and then binary info after the header. I'm trying to write a generator to display the xml header. There's no application bundle that it belongs to. Thanks!

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  • Comparing Clojure books

    - by Michiel Borkent
    Currently there is (afaik) one completed Clojure book available: Programming Clojure by Stuart Halloway. Two are being written and partially available at Manning: The Joy of Clojure by Fogus and Houser Clojure in Action by Amit Rathore Another one is about to be published in May: Practical Clojure (The Definitive Guide) by Luke Van der Hart Are these books more or less the same and meant as a general introduction to Clojure? Does it make sense to buy them all, or is there a risk of having three very similar books? Will there be books that go into more specialized areas of Clojure and targetted for 'intermediate' or 'advanced' Clojure programmers?

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  • Metaprograming - self explanatory code - tutorials, articles, books

    - by elena
    Hello everybody, I am looking into improving my programming skils (actually I try to do my best to suck less each year, as our Jeff Atwood put it), so I was thinking into reading stuff about metaprogramming and self explanatory code. I am looking for something like an idiot's guide to this (free books for download, online resources). Also I want more than your average wiki page and also something language agnostic or preferably with Java examples. Do you know of such resources that will allow to efficiently put all of it into prectice (I know experience has a lot to say in all of this but i kind of want to build experience avoiding the flow bad decitions - experience - good decitions)? Thank you!

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  • Good Economics book for developers

    - by Rocket Surgeon
    Joel mentions in several of his blog posts that it is very important for a developer/software entrepreneur to have solid understanding of Economics. Yet the Fog Creek MBA book reading list does not include any Economics books. Is there any good material that people can recommend? Obviously, I am not as concerned about mathematical treatise as foundations and basic principles. For example, I was able to find a very good high-level read on Macroeconomics: Concise Guide to Macroeconomics but I am yet to find anything similar on Microeconomics. Any suggestions and reading pointers would be highly appreciated.

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  • How do I create a new folder and deploy files to the 12 hive using VseWSS 1.3?

    - by Nathan DeWitt
    I have created a web part using VSeWSS 1.3. It creates a wsp file and my web part gets installed, everything works great. I would like to also create a folder in the LAYOUTS directory of the 12 hive and place a couple files in there. How do I go about doing this? I know that I can manually place the files there, but I would prefer to have it all done in one fell swoop when I uses stsadm to install my solution. Is there a best practices guide out there for using VSeWSS 1.3 to do this? They changed a bunch of stuff with this new version and I want to make sure I don't mess anything up.

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