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• Is there a way to make IE7 default to ms-image-mode:bicubic?

  - by Mark Ransom

  Internet Explorer 7 uses a rather crude method to resize images by default. There's a CSS tag img { -ms-interpolation-mode: bicubic; } to get better results, but I'm unable to change the source of the page. IE8 uses the better method as the default, but this is a corporate environment that is unable to upgrade at this moment. Is there anything in the options or a registry hack to change the default resizing mode in IE7?

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• Unidentified network in Win7

  - by gylns

  I connect the internet through Ad-hoc network, My machine uses win7 and another uses winows xp, There's no problem when I connect the XP machine, but if i disconnect and reconnect the net, then my local network is marked as "Unidentified network",unless restart the XP machine, I don't know why?

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• SQLite3's dynamic typing

  - by Bradford Larsen

  SQLite3 uses dynamic typing rather than static typing, in contrast to other flavors of SQL. The SQLite website reads: Most SQL database engines (every SQL database engine other than SQLite, as far as we know) uses static, rigid typing. With static typing, the datatype of a value is determined by its container - the particular column in which the value is stored. SQLite uses a more general dynamic type system. In SQLite, the datatype of a value is associated with the value itself, not with its container. It seems to me that this is exactly what you don't want, as it lets you store, for example, strings in integer columns. The page continues: ...the dynamic typing in SQLite allows it to do things which are not possible in traditional rigidly typed databases. I have two questions: The use case question: What are some examples where sqlite3's dynamic typing is, in fact, beneficial? The historical/design question: What was the motivation for implementing sqlite with dynamic typing?

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• Poco SocketReactor Scalability

  - by Genesis

  I have written a proxy server for Linux using Poco but have since been reading up on the various approaches to achieving TCP/IP server scalability. I will need the server to handle persistent connections (not HTTP traffic) with an upper limit of about 250 simultaneous connections. Each connection typically uses about 5-10Kb/sec and the best possible latency in handling traffic is crucial. As it stands I am using the Poco SocketReactor which uses the Reactor model with a select() call at its heart however I have had a read on the C10K problem as well as few other resources and it seems that using this approach might not be the best idea. I believe there is a test implementation in the Poco libs that uses poll() so this could be an option to improve things. Does anyone have any experience using a Poco SocketReactor and do you have any idea how well it might scale for my scenario? If it will not scale well, suggestions on alternatives would be appreciated.

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• linq2sql - where to enlist transaction (repository or bll)?

  - by Caroline Showden

  My app uses a business layer which calls a repository which uses linq to sql. I have an Item class that has an enum type property and an ItemDetail property. I need to implement a delete method that: (1) always delete the Item (2) if the item.type is XYZ and the ItemDetail is not null, delete the ItemDetail as well. My question is where should this logic be housed? If I have it in my business logic which I would prefer, this involves two separate repository calls, each of which uses a separate datacontext. I would have to wrap both calls is a System.Transaction which (in sql 2005) get promoted to a distributed transaction which is not ideal. I can move it all to a single repository call and the transaction will be handled implicitly by the datacontext but feel that this is really business logic so does not belong in the repository. Thoughts? Carrie

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• Problem with #ifndef and #pragma once

  - by Xaver

  I want write the program with next struct stdafx.h - contains some #define defenitions of program constants and #include of headers wich uses in all project. frmMain.h - contatins code of Form1 also can Show form2 and uses some code from BckHeadr.h and some functions call that headers included in stdafx.h. frmIniPrgs.h - contatins code of Form2 and uses some code from BckHeadr.h and some functions call that headers included in stdafx.h. BckHeadr.h - contatins some definitions of functions and some functions call that headers included in stdafx.h. I know what i must use #ifndef or #pragma once directives. But i can not decided this problem. I included in stdafx.h: frmIniPrgs.H, BckHeadr.h, frmMain.h. And use #ifndef in all modules. I uset it like this: #ifndef MYMODULE_H #define MYMODULE_H //module code #endif

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• Correct permutation cycle for Verhoeff algorithm

  - by James

  Hello, I'm implementing the Verhoeff algorithm for a check digit scheme, but there seems to be some disagreement in web sources as to which permutation cycle should form the basis of the permutation table. Wikipedia uses: (36)(01589427) while apparently, Numerical Recipies uses a different cycle and this book uses: (0)(14)(23)(56789), quoted from a 1990 article by Winters. It also notes that Verhoeff used the one Wikipedia quotes. Now, my number theory is a little rusty, but the Wikipedia cycle clearly will repeat after the 8th power, while the book one will take 10, despite it saying that s^8=s. Table 2.14(b) has other errors in the 2-cycles, so this is dubious anyway. Unfortunately, I don't have copies of the original articles (and am too tight to pay/disgusted that 40-year old knowledge is still being held to ransom by publishers), nor a copy of Numerical Recipes to check (and am loath to install their paranoia-induced copy protection plug-in to view online). So does any one know which is correct? Are they both correct?

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• c#: IsNullableType helper class ?

  - by mark smith

  Hi there, Can anyone help? I have some code that is shared between 2 projects. The code points to a model which basically is a collection of properties that comes from a db. Problem being is that some properties use nullable types in 1 model and the other it doesn't Really the dbs should use the same but they don't .. so for example there is a property called IsAvailble which uses "bool" in one model and the other it uses bool? (nullable type) so in my code i do the following objContract.IsAvailble.Value ? "Yes" : "No" //notice the property .VALUE as its a bool? (nullable type) but this line will fail on model that uses a standard "bool" (not nullable) as there is no property .VALUE on types that are NOT nullable Is there some kind of helper class that i check if the property is a nullable type and i can return .Value .. otherwise i just return the property. Anybody have a solution for this?

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• where to enlist transaction with parent child delete (repository or bll)?

  - by Caroline Showden

  My app uses a business layer which calls a repository which uses linq to sql. I have an Item class that has an enum type property and an ItemDetail property. I need to implement a delete method that: (1) always delete the Item (2) if the item.type is XYZ and the ItemDetail is not null, delete the ItemDetail as well. My question is where should this logic be housed? If I have it in my business logic which I would prefer, this involves two separate repository calls, each of which uses a separate datacontext. I would have to wrap both calls is a System.Transaction which (in sql 2005) get promoted to a distributed transaction which is not ideal. I can move it all to a single repository call and the transaction will be handled implicitly by the datacontext but feel that this is really business logic so does not belong in the repository. Thoughts? Carrie

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• Migrate existing ROR app to GAE

  - by zengr

  I have managed to run a basic rails app1 on App Engine using: http://gist.github.com/268192 So, on my basic app2, I install CE, which works fine on local machine. (communityengine.org) But, when I follow the same steps on my actual app2, where community_engine plugin is installed and all the gems are frozen, the app engine installer script asks for to over write various files like boot.rb, routes.rb, which I don't allow. So, as expected, when I publish the rails + ce app to GAE, it's not published and it also screws the local installation of CE on app2. So, the problem is obvious, CE uses ActiveRecord, and GAE uses DataMapper. So, my question can also be rephrased as: Can we migrate an existing ROR App using Active Record to GAE which uses DataMapper? PS: This is my first project on ROR and GAE.

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• How to deploy and register a VSPackage supporting multiple versions of Visual Studio (2005, 2008, 20

  - by Steve Cadwallader

  I have an open source VSPackage that I would like to release with support for Visual Studio 2005, Visual Studio 2008, and Visual Studio 2010. I'm trying to figure out how to create the installer and how to perform the package registration with each edition of Visual Studio. The deployment research I've done indicates my best bet for an installer is a VSIX inside an MSI. The registration research I've done is a lot less clear. VSPackage registration seems to differ for every edition (VS2005 uses regpkg, VS2008 uses pkgdef, VS2010 uses VSIX). Can anyone share their experiences and/or point me towards any information about the best approach for targeting multiple versions of Visual Studio? I'm looking for the easiest implementation and preferably keeping it in a single installer if reasonably feasible. Any help would be greatly appreciated!

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• FluentNHibernate 1.1 / Castle 1.1 dependency

  - by Innogetics

  I would like to upgrade my FluentNHibernate to version 1.1, but I found out it uses Castle.Core 1.1. I use Castle.Windsor 1.2 in my app which works with Castle.Core 1.2. I now need to find a version of Castle.Windsor that uses this earlier version of Castle.Core, but I can't find it anywhere. What do you recommend I should do? Wait for a version of FluentNHibernate that uses the latest Castle.Core? OR build FluentNHibernate 1.1 from source using the latest Castle.Core? OR downgrade my Castle.Windsor version?

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• Development deployment: how to achive edit-and-reload with JSP pages?

  - by doublep

  Out project uses WebLogic as web-server and uses mostly JSP for user interface. With standard setup it is possible to copy edited JSP files into the exploded deployment directory and WebLogic will automatically pick them up, recompile and serve new content through HTTP. However, is it possible to avoid copying at all, so that I just save a file in my editor and it is immediately (well, after a couple of seconds for recompilation) visible? The project uses Apache Ant as building tool. I would imagine what I want would be possible with symlinks (since this is for deployment only I don't care about cross-platformity), but then I don't see how it is possible to symlink lots of files at once with Ant. So, how do I achieve save-JSP-hit-F5-in-browser functionality either with some setting in WebLogic; or with symlinking JSPs using Apache Ant (instead of copying them as is done now); or something else completely?

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• Naming convention for utility classes in Java

  - by Zarjay

  When writing utility classes in Java, what are some good guidelines to follow? Should packges be "util" or "utils"? Is it ClassUtil or ClassUtils? When is a class a "Helper" or a "Utility"? Utility or Utilities? Or do you use a mixture of them? The standard Java library uses both Utils and Utilities: javax.swing.Utilities javax.print.attribute.AttributeSetUtilities javax.swing.plaf.basic.BasicGraphicsUtils Apache uses a variety of Util and Utils, although mostly Utils: org.apache.commons.modeler.util.DomUtil org.apache.commons.modeler.util.IntrospectionUtils org.apache.commons.io.FileSystemUtils org.apache.lucene.wordnet.AnalyzerUtil org.apache.lucene.util.ArrayUtil org.apache.lucene.xmlparser.DOMUtils Spring uses a lot of Helper and Utils classes: org.springframework.web.util.UrlPathHelper org.springframework.core.ReflectiveVisitorHelper org.springframework.core.NestedExceptionUtils org.springframework.util.NumberUtils So, how do you name your utility classes?

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• 2 Runtime Packages: how can I use a unit from each other? (Delphi)

  - by Christian Almeida

  Hi, Lets assume we have 2 runtime packages, with 1 form in each one; Pkg1 -> Unit1 (frm1) Pkg2 -> Unit2 (frm2) Now I want that they "know" each other. When pkg1 needs to know Unit2, we have to "require" Pkg2 in Pkg1. So now I can do a "uses" Unit2 and then do frm2.Show in Unit1 code. But when I do the same thing in Pkg2 (set to require Pkg1), it does not compile, informing that Pgk2 already have a unit name Unit2 (I think is because Pkg1 is requiring Pkg2). So, how to: in Unit1 do a "uses Unit2" and in Unit2 do a "uses Unit1"? Thanks in advance.

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• Web service can't open named pipe - access denied

  - by Patrick

  Hi All, I've got a C++ service which provides a named pipe to clients with a NULL SECURITY_ATTRIBUTES as follows: hPipe = CreateNamedPipe( lpszPipename, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | PIPE_WAIT, PIPE_UNLIMITED_INSTANCES, BUFSIZE, BUFSIZE, 0, NULL); There is a dll which uses this pipe to get services. There is a c# GUI which uses the dll and works fine. There is a .net web site which also uses this dll (the exact same one on the same PC) but always gets permission denied when it tries to open the pipe. Any one know why this might happen and how to fix it? Also does anyone know of a good tutorial on SECURITY_ATTRIBUTES because I haven't understood the msdn info yet. Thanks, Patrick

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• What are the names of network interfaces on the Motorola CLIQ?

  - by RS

  The network interfaces on Android interfaces are listed as directories in the file system in /sys/class/net/. For most Android devices the network interface for gprs traffic is called rmnet0 and for Wi-Fi it's usually eth0 or tiwlan0. I suspect that the cell interface for the Motorola CLIQ is rmnet0, but I would like to have this confirmed + know the name of the Wi-Fi interface. Also it would be good to know the device id for this model. This is the value available as android.os.Build.DEVICE in the Java SDK. (E.g. T-Mobile G1 uses dream, Samsung Galaxy uses GT-I7500, and Motorolda Droid uses sholes.)

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• Using java applet to send request with the client ip

  - by mike

  hi, i need to send a request to a website when a user submits their url, i tried using curl but it uses server ip which i dont want i have seen a website that is doing a similar job by using applet, users need to open a popup which contains the applet after they leave it open allow it to run it uses a port and then uses the localhost ip like so 127.0.0.1:64653 to send request and basicly curl by the user ip. i decompiled the applet the website was using and they were using java.net.ServerSocket and some other java code but i do not know anything about java. I would to know how this can be done.

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• Android Admob is not Showing Up

  - by Brandon

  Admob is not showing up on my emulator or on the device it self. I tried with testing mode on and off. Relevant Manifest data: permissions: <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE" /> meta data: <meta-data android:value="true" android:name="AD_REQUEST" /> The x's are actually my ID. My whole main.xml: <com.admob.android.ads.AdView android:id="@+id/ad" android:layout_width="fill_parent" android:layout_height="wrap_content" android:visibility="visible" android:layout_alignParentTop="true"/> Hopefully I can get this solved soon...

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• Script Speed vs Memory Usage

  - by Doug Neiner

  I am working on an image generation script in PHP and have gotten it working two ways. One way is slow but uses a limited amount of memory, the second is much faster, but uses 6x the memory . There is no leakage in either script (as far as I can tell). In a limited benchmark, here is how they performed: -------------------------------------------- METHOD | TOTAL TIME | PEAK MEMORY | IMAGES -------------------------------------------- One | 65.626 | 540,036 | 200 Two | 20.207 | 3,269,600 | 200 -------------------------------------------- And here is the average of the previous numbers (if you don't want to do your own math): -------------------------------------------- METHOD | TOTAL TIME | PEAK MEMORY | IMAGES -------------------------------------------- One | 0.328 | 540,036 | 1 Two | 0.101 | 3,269,600 | 1 -------------------------------------------- Which method should I use and why? I anticipate this being used by a high volume of users, with each user making 10-20 requests to this script during a normal visit. I am leaning toward the faster method because though it uses more memory, it is for a 1/3 of the time and would reduce the number of concurrent requests.

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• Dropdownlists creates postback on key changes in IE

  - by Dofs

  I have created a label and a dropdownlist. The label has the dropdownlist as associated id. If I click on the label and then uses the mouse up or down the dropdownlist creates a postback for each click. This is quite anoying and doesn't happen if you click on the dropdownlist and uses key-up or key-down, or if you uses another browser than IE. Is it possibel to fix this, so you can use key-up and key-down without causing a postback, and first on the enter-key creates the postback (as it does if you click on the dropdownlist and not label)?

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• Decorators vs. classes in python web development.

  - by Tristan

  I've noticed three main ways Python web frameworks deal request handing: decorators, controller classes with methods for individual requests, and request classes with methods for GET/POST. I'm curious about the virtues of these three approaches. Are there major advantages or disadvantages to any of these approaches? To fix ideas, here are three examples. Bottle uses decorators: @route('/') def index(): return 'Hello World!' Pylons uses controller classes: class HelloController(BaseController): def index(self): return 'Hello World' Tornado uses request handler classes with methods for types: class MainHandler(tornado.web.RequestHandler): def get(self): self.write("Hello, world") Which style is the best practice?

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• Android asking for unneeded permissions

  - by steveo225

  I have an Android widget that needs internet access, fine and coarse permissions only. However, when I install the apk file, it says it also needs access to read the phone state and identity, and access to storage. It doesn't need access to either, and the only permissions that are in the mainfest are: <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> Any ideas on why this is happening? Thanks for the help.

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• Exception wrapping and HTML pages

  - by dotnetdev

  Hi, We have a sharepoint 2007 project at work. The exception handling policy is to log to the Sharepoint logs. In this case, would the best approach be to call that method and then rethrow the exception higher up? Except if I rethrow it to be caught higher up, there is no other exception handling code so what would happen in this case? Also, if you are going to display a more friendly error to the user (which uses information in the exception object), then this would be a good use of exception wrapping. Would it be a good idea to make a custom aspx page and add these to customerrors, so that on init (not sure of the exact event), I can display exception info in the passed parameter on the page. However, a static html page can't do this so I don't see the point in wrapping exceptions (unless there is a page or alert which uses the exception object). So if a project uses html pages for errors, is there a point in wrapping exceptions? Thanks

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• What are the names of network interfaces on the Motorola CLIQ XT?

  - by RS

  The network interfaces on Android interfaces are listed as directories in the file system in /sys/class/net/. For most Android devices the network interface for gprs traffic is called rmnet0 and for Wi-Fi it's usually eth0 or tiwlan0. I suspect that the cell interface for the Motorola CLIQ XT is rmnet0, but I would like to have this confirmed + know the name of the Wi-Fi interface. Also it would be good to know the device id for this model. This is the value available as android.os.Build.DEVICE in the Java SDK. (E.g. T-Mobile G1 uses dream, Samsung Galaxy uses GT-I7500, and Motorolda Droid uses sholes.)

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