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• NullPointerException when showing JFileChooser

  - by Geo

  I show a JFileChooser with this snippet: public File getDestination() { JFileChooser chooser = new JFileChooser(); chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY); int option = chooser.showSaveDialog(null); if(option == JFileChooser.APPROVE_OPTION) { return chooser.getSelectedFile().getAbsolutePath(); } return new File("."); } Usually, the first time it's showed, it displays & works correctly. The second time, it will always throw this exception: Exception in thread "Basic L&F File Loading Thread" java.lang.NullPointerException at sun.awt.shell.Win32ShellFolder2.pidlsEqual(Unknown Source) at sun.awt.shell.Win32ShellFolder2.equals(Unknown Source) at sun.awt.shell.Win32ShellFolderManager2.isFileSystemRoot(Unknown Source) at sun.awt.shell.ShellFolder.isFileSystemRoot(Unknown Source) at javax.swing.filechooser.FileSystemView.isFileSystemRoot(Unknown Source) at javax.swing.filechooser.WindowsFileSystemView.isTraversable(Unknown Source) at javax.swing.JFileChooser.isTraversable(Unknown Source) at javax.swing.plaf.basic.BasicDirectoryModel$LoadFilesThread.run0(Unknown Source) at javax.swing.plaf.basic.BasicDirectoryModel$LoadFilesThread.run(Unknown Source) Java -version says: java version "1.6.0_20" Java(TM) SE Runtime Environment (build 1.6.0_20-b02) Java HotSpot(TM) Client VM (build 16.3-b01, mixed mode, sharing) And the thread I found here says I should downgrade the Java version. Should I follow their advice, or is there something I could have done wrong?

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• Strong Naming an assembly using command line compile

  - by David

  I am trying to use NAnt in order to compile and sign an assembly using the vbc compiler. I have a project set up and am able to successfully sign the assembly compiling with VS2010. When I try to sign it using the command line I get this error: vbc : error BC30140: Error creating assembly manifest: Error signing assembly -- The parameter is incorrect. I even created a trivially simple app (just an assemblyinfo.vb file) that will not compile and sign using vbc.exe What am I doing wrong? here is my assemblyinfo.vb: Option Strict Off Option Explicit On Imports System Imports System.Reflection <Assembly: AssemblyVersionAttribute("2010.05.18.0918"), _ Assembly: AssemblyCopyrightAttribute("Copyright © Patient First 2007"), _ Assembly: AssemblyCompanyAttribute("Patient First, Inc."), _ Assembly: AssemblyProductAttribute("Patient First Framework"), _ Assembly: AssemblyDelaySign(false), _ Assembly: AssemblyKeyFile("test.pfx"), _ Assembly: AssemblyTitleAttribute("PatientFirst.Framework")> test.pfx is located in the same folder as assemblyinfo.vb Here is how I am trying to compile it: vbc /target:library /verbose assemblyinfo.vb I also tried using vbc /target:library /verbose assemblyinfo.vb /keyfile:test.pfx and tried using /keyfile parameter without the AssemblyDelaySign and AssemblyKeyFile attributes If I remove the AssemblyDelaySign and AssemblyKeyFile attributes and leave off the /keyfile command line parameter it compiles fine. What is the correct way to do this with vbc? --EDIT: I have found that MSBuild also does not like having the AssemblyKeyFile attribute as I have defined it in the AssemblyInfo.vb, it gives the same failure message. So the only way I can currently get this to build correctly is to set properties on the project to tell it which key file to use and to sign the assembly.

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• How can I force Javascript garbage collection in IE? IE is acting very slow after AJAX calls & DOM

  - by RenderIn

  I have a page with chained drop-downs. Choosing an option from the first select populates the second, and choosing an option from the second select returns a table of matching results using the innerHtml function on an empty div on the page. The problem is, once I've made my selections and a considerable amount of data is brought onto the page, all subsequent Javascript on the page runs exceptionally slowly. It seems as if all the data I pulled back via AJAX to populate the div is still hogging a lot of memory. I tried setting the return object which contains the AJAX results to null after calling innerHtml but with no luck. Firefox, Safari, Chrome and Opera all show no performance degradation when I use Javascript to insert a lot of data into the DOM, but in IE it is very apparent. To test that it's a Javascript/DOM issue rather than a plain old IE issue, I created a version of the page that returns all the results on the initial load, rather than via AJAX/Javascript, and found IE had no performance problems. FYI, I'm using jQuery's jQuery.get method to execute the AJAX call. EDIT This is what I'm doing: <script type="text/javascript"> function onFinalSelection() { var searchParameter = jQuery("#second-select").val(); jQuery.get("pageReturningAjax.php", {SEARCH_PARAMETER: searchParameter}, function(data) { jQuery("#result-div").get(0).innerHtml = data; //jQuery("#result-div").html(data); //Tried this, same problem data = null; }, "html"); } </script>

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• Silverlight 2 Error Code: 4004

  - by jkidv

  Hey guys/gals. I have a silverlight 2 app that has an ObservableCollection of a class from a separate assem/lib. When I set my ListBox.ItemsSource on that collection, and run it, I get the error code: 4004 "System.ArgumentException: Value does not fall within the expected range." Here is part of the code: public partial class Page : UserControl { ObservableCollection<Some.Lib.Owner> ooc; public Page() { ooc = new ObservableCollection<Some.Lib.Owner>(); Some.Lib.Owner o1 = new Some.Lib.Owner() { FirstName = "test1" }; Some.Lib.Owner o2 = new Some.Lib.Owner() { FirstName = "test2" }; Some.Lib.Owner o3 = new Some.Lib.Owner() { FirstName = "test3" }; ooc.Add(o1); ooc.Add(o2); ooc.Add(o3); InitializeComponent(); lb1.ItemsSource = ooc; } } But when I create the Owner class within this same project, everything works fine. Is there some security things going on behind the scenes? Also, I'm using the generate a html page option and not the aspx option, when I created this Silverlight 2 app.

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• Java Runtime.getRuntime().exec() alternatives

  - by twilbrand

  I have a collection of webapps that are running under tomcat. Tomcat is configured to have as much as 2 GB of memory using the -Xmx argument. Many of the webapps need to perform a task that ends up making use of the following code: Runtime runtime = Runtime.getRuntime(); Process process = runtime.exec(command); process.waitFor(); ... The issue we are having is related to the way that this "child-process" is getting created on Linux (Redhat 4.4 and Centos 5.4). It's my understanding that an amount of memory equal to the amount tomcat is using needs to be free in the pool of physical (non-swap) system memory initially for this child process to be created. When we don't have enough free physical memory, we are getting this: java.io.IOException: error=12, Cannot allocate memory at java.lang.UNIXProcess.<init>(UNIXProcess.java:148) at java.lang.ProcessImpl.start(ProcessImpl.java:65) at java.lang.ProcessBuilder.start(ProcessBuilder.java:452) ... 28 more My questions are: 1) Is it possible to remove the requirement for an amount of memory equal to the parent process being free in the physical memory? I'm looking for an answer that allows me to specify how much memory the child process gets or to allow java on linux to access swap memory. 2) What are the alternatives to Runtime.getRuntime().exec() if no solution to #1 exists? I could only think of two, neither of which is very desirable. JNI (very un-desirable) or rewriting the program we are calling in java and making it it's own process that the webapp communicates with somehow. There has to be others. 3) Is there another side to this problem that I'm not seeing that could potentially fix it? Lowering the amount of memory used by tomcat is not an option. Increasing the memory on the server is always an option, but seems like more a band-aid. Servers are running java 6.

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• How to handle payment types with varying properties in the most elegant way.

  - by Byron Sommardahl

  I'm using ASP.NET MVC 2. Keeping it simple, I have three payment types: credit card, e-check, or "bill me later". I want to: choose one payment type display some fields for one payment type in my view run some logic using those fields (specific to the type) display a confirmation view run some more logic using those fields (specific to the type) display a receipt view Each payment type has fields specific to the type... maybe 2 fields, maybe more. For now, I know how many and what fields, but more could be added. I believe the best thing for my views is to have a partial view per payment type to handle the different fields and let the controller decide which partial to render (if you have a better option, I'm open). My real problem comes from the logic that happens in the controller between views. Each payment type has a variable number of fields. I'd like to keep everything strongly typed, but it feels like some sort of dictionary is the only option. Add to that specific logic that runs depending on the payment type. In an effort to keep things strongly typed, I've created a class for each payment type. No interface or inherited type since the fields are different per payment type. Then, I've got a Submit() method for each payment type. Then, while the controller is deciding which partial view to display, it also assigns the target of the submit action. This is not elegant solution and feels very wrong. I'm reaching out for a hand. How would you do this?

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• Can a CNAME be a hostname

  - by pulegium

  This is bit of a theological question, but nonetheless... So, a server has a hostname, let's say the fqdn is hostname.example.com (to be really precise about what I mean, this is the name that is set in /etc/sysconfig/network). The very same server has multiple interfaces on different subnets. Let's say the IPs are 10.0.0.1 and 10.0.1.1. Now the question is, is it theoretically (mind you, this is important, I know that practically it works, but I'm interested in purely academic answer) allowed to have the following setup: interface1.example.com. IN A 10.0.0.1 interface2.example.com. IN A 10.0.1.1 hostname.example.com. IN CNAME interface1.example.com. OR should it rather be: hostname.example.com. IN A 10.0.0.1 interface2.example.com. IN A 10.0.1.1 interface1.example.com. IN CNAME hostname.example.com. I guess it's obvious which one is making more sense from the management/administration POV, but is it technically correct? The argument against the first setup is that a reverse lookup to 10.0.0.1 returns interface1.example.com and not what one might expect (ie the hostname: hostname.example.com), so the forward request and then sub sequential reverse lookups would return different results. Now, as I said, I want a theoretical answer. Links to RFC sections etc, that explicitly allows or disallows use of CNAME name as a hostname. If there's none, that's fine too, I just need to confirm. I failed to find any explicit statements so far, bar this book, where this situation is given as an example and implies that it can be done as one of the ways to avoid MX records pointing to a CNAME.

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• Recover a folder or file in TortoiseSVN whilst also retaining all history.

  - by Topdown

  In revision 1 a folder existed. In revision 2 the folder was accidently deleted and the change committed. We wish to roll back such that the folder is present, and retain its history. In the TortoiseSVN docs it indicates 'how' in the section titled "Getting a deleted file or folder back". To quote: Getting a deleted file or folder back If you have deleted a file or a folder and already committed that delete operation to the repository, then a normal TortoiseSVN - Revert can't bring it back anymore. But the file or folder is not lost at all. If you know the revision the file or folder got deleted (if you don't, use the log dialog to find out) open the repository browser and switch to that revision. Then select the file or folder you deleted, right-click and select [Context Menu] - [Copy to...] as the target for that copy operation select the path to your working copy. A switch retrieves the file into my working copy as one would expect, however there is no "Copy to" option on the context menu when I right click this working copy. If I open the repos browser, there is a copy to option, but it seems this simply takes a copy of the file. The solution I feel is to do a Branch/Tag, but if I try this from a prior revision to the same path in the repository SVN throws error that the path already exists. Therefore, how do I recover a folder/file in TortoiseSVN whilst also retaining all history. TortoiseSVN v1.6.8, Build 19260 - 32 Bit , Subversion 1.6.11,

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• Perl on MacOS X 10.6.2: GDBM_File missing, how to install or work around?

  - by jdmuys

  When I need a Perl module, I typically use CPAN. It works fine. But not this time. I want to use MARC::Charset, but this one uses GDBM_File, and I can't seem to install GDBM_File from CPAN. CPAN finds it all right, but trying to install it, it starts installing the full Perl 5.10.1 distribution. MARC::Charset is a rather old module, so there should be a way to use it from some common Perl version (Mac OS X 10.6.2 has 5.10.0 and 5.8.9 by default). While installing the full blow Perl 5.10.1 is not an option, modifying MARC::Charset to stop using GDBM_File might be one. What would be the best course of action to do so? This last option might also be the only one. googling GDBM_File uncovers a few items that suggest that gdbm is not even available on the Mac. Those items typically went over my head though. While I don't expect a silver bullet, somebody may have a pointer or two on where I should start. After all, MARC::Charset only does character transliteration to/from the marc8 char set, which unfortunately, iconv doesn't seem to support.

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• Sort multiple columns while using a bindingsource or bindinglist

  - by JF

  Hi everyone. I have a problem I am trying to fix and it's sorting a DataGridView on multiple columns. I have read that this option is not a feature built-in the DataGridView and I have to implement it. I have found multiple solutions, but none quite got to do the work. I'm also quite a newbie in C# and I don't know much of the .Net library. I have also read on the MSDN site for info on different classes that might be of use, but no success. Now, let's get to the point. I have a DataGridView, with a BindingList (originally, a BindingSource) that I want to sort, but by multiple keys. My DataGrid has 9 columns and the user should be able to sort on any column. For example, let's say my Datagrid has 3 columns, named : Index, ID, Name. The user wants to sort by Name, implicitly, the next order would be Index and then ID. So, in case 2 names are identical, Index should be the next sort option. Any ideas how this can be made?

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• Looking for a good world map generation algorithm

  - by FalconNL

  I'm working on a Civilization-like game and I'm looking for a good algorithm for generating Earth-like world maps. I've experimented with a few alternatives, but haven't hit on a real winner yet. One option is to generate a heightmap using perlin noise and add water at a level so that about 30% of the world is land. While perlin noise (or similar fractal-based techniques) are frequently used for terrain and is reasonably realistic, it doesn't offer much in the way of control over the number, size and position of the resulting continents, which I'd like to have from a gameplay perspective. See http://farm3.static.flickr.com/2792/4462870263_ff26c40365_o.jpg for an example (sorry, can't post pictures yet). A second option is to start with a randomly positioned one-tile seed (I'm working on a grid of tiles), determine the desired size for the continent and each turn add a tile that is horizontally or vertically adjacent to the existing continent until you've reached the desired size. Repeat for the other continents. This technique is part of the algorithm used in Civilization 4. The problem is that after placing the first few continents, it's possible to pick a starting location that's surrounded by other continents, and thus won't fit the new one. Also, it has a tendency to spawn continents too close together, resulting in something that looks more like a river than continents. See http://farm5.static.flickr.com/4069/4462870383_46e86b155c_o.jpg for an example. Does anyone happen to know a good algorithm for generating realistic continents on a grid-based map while keeping control over their number and relative sizes?

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• using text and ntext SQL Datatypes in RPG

  - by David Stratton

  I'll preface this with saying that I'm a .NET developer, and am NOT an RPG developer. I'm working with one of our RPG developers to come up with a solution, so any suggestions you provide will get passed to him. We have a scenario where we want our iSeries to read from a SQL Server database. One of the columns is a TEXT column. IN RPG, there is no equivalent data type to use for this. We've gone back and forth on this, and our current plan is to change course, and have our SQL Server write out a text file, which the iSeries can pick up and parse. This is, however, a last resort option, as the data in the file is sensitive, and we'd like to avoid the additional security overhead. We've already got the SQL Server locked down as tight as possible (one user only has read access to this, and that user is an iSeries user.) We don't want to have to worry about transferring files back and forth. However, at this point, we see no other option. We have no in-house Java developers, and need to do this in RPG. So I'm wondering if there are any RPG developers out there who have faced this situation and have any advice.

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• Good DB Migrations for CakePHP?

  - by Martin Westin

  Hi, I have been trying a few migration scripts for CakePHP but I ran into problems with all of the in some form or another. Please advice me on a migration option for Cake that you use live and know works. I'd like the following "features": -Support CakePHP 1.2(e.g. CakeDCs migrations will only be an option when 1.3 is stable and my app migrated to the new codebase) -Support for (or at least not halt on) Models with a different database config. -Support Models in sub-folders of app/models -Support Models in plugins -Support tables that do not conform to Cake conventions (I have a few special tables that do not have a single primary key field and need to keep them) -Plays well with automated deployment via Capistrano and Git. I do not need rails-style versioned files a git versioned schema file that is compared live to the existing schema will do. That is: I like the SchemaShell in Cake apart from it not being compatible with most of my requirements above. I have looked at and tested: CakePHP Schema Shell http://book.cakephp.org/view/734/Schema-management-and-migrations CakeDC migrations http://cakedc.com/downloads/view/cakephp_migrations_plugin YAML migrations http://github.com/georgious/cakephp-yaml-migrations-and-fixtures joelmoss migrations http://code.google.com/p/cakephp-migrations

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• Building Cross Platform app - recommendation

  - by Ben

  Hi, I need to build a fairly simple app but it needs to work on both PC and Mac. It also needs to be redistributable on a disc or usb drive as a standalone desktop app. Initially I thought AIR would be perfect for this (it ticks all the API requirements), but the difficulty is making it distributable, as the app would require the AIR runtime to be installed to run. I came across Shu Player as an option as it seems to be able to package the AIR runtime with the app and do a (silent?) install. However this seems to break the T&C from Adobe (as outlined here) so I'm not sure about the legality. Another option could be Zinc but I haven't tested it so I'm not sure how well it'll fit the bill. What would you recommend or suggest I check out? Any suggestion much appreciated EDIT: There's a few more discussions on mono usage (though no real conclusion): Here and Here EDIT2: Titanium could also fit the bill maybe, will check it out. Any more comments from anyone? Ben

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• gcc: Do I need -D_REENTRANT with pthreads?

  - by stefanB

  On Linux (kernel 2.6.5) our build system calls gcc with -D_REENTRANT. Is this still required when using pthreads? How is it related to gcc -pthread option? I understand that I should use -pthread with pthreads, do I still need -D_REENTRANT? On a side note, is there any difference that you know off between the usage of REENTRANT between gcc 3.3.3 and gcc 4.x.x ? When I use -pthread gcc option I can see that _REENTRANT gets defined. Will omitting -D_REENTRANT from command line make any difference, for example could some objects be compiled without multithreaded support and then linked into binary that uses pthreads and will cause problems? I assume it should be ok just to use: g++ -pthread > echo | g++ -E -dM -c - > singlethreaded > echo | g++ -pthread -E -dM -c - > multithreaded > diff singlethreaded multithreaded 39a40 > #define _REENTRANT 1 We're compiling multiple static libraries and applications that link with the static libraries, both libraries and application use pthreads. I believe it was required at some stage in the past but want to know if it is still required. Googling hasn't returned any recent information mentioning -D_REENTRANT with pthreads. Could you point me to links or references discussing the use in recent version of kernel/gcc/pthread? Clarification: At the moment we're using -D_REENTRANT and -lpthread, I assume I can replace them with just g++ -pthread, looking at man gcc it sets the flags for both preprocessor and linker. Any thoughts?

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• File extensions and MIME Types in .NET

  - by Marc Climent

  I want to get a MIME Content-Type from a given extension (preferably without accessing the physical file). I have seen some questions about this and the methods described to perform this can be resumed in: Use registry information. Use urlmon.dll's FindMimeFromData. Use IIS information. Roll your own MIME mapping function. Based on this table, for example. I've been using no.1 for some time but I realized that the information provided by the registry is not consistent and depends on the software installed on the machine. Some extensions, like .zip don't use to have a Content-Type specified. Solution no.2 forces me to have the file on disk in order to read the first bytes, which is something slow but may get good results. The third method is based on Directory Services and all that stuff, which is something I don't like much because I have to add COM references and I'm not sure it's consistent between IIS6 and IIS7. Also, I don't know the performance of this method. Finally, I didn't want to use my own table but at the end seems the best option if I want a decent performance and consistency of the results between platforms (even Mono). Do you think there's a better option than using my own table or one of other described methods are better? What's your experience?

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• Some questions about slugs in ASP.NET MVC content system

  - by mare

  In my application I'm currently using forms which allow to enter Title and Slug fields. Now I've been struggling with the slugs thing for a while because I can never decide once and for all how to handle them. 1) Make Title and Slug indenpendent Should I allow users to enter both Title and Slug separetely? This is what I had first. I also had an option that if user did not enter the Slug it was derived from the Title. If both were enter, the Slug field took precedence. 2) Derive Slug from Title, when content is inserted that's it for the Slug, no more changes Then, I switched to only Title field and derive Slug from title. While doing it I found out that now I have to change all the forms that allowed user to enter a slug. This way of doing it also prevents users to change Slugs - they can change the Title but it has no effect on the Slug. You can think of it like Slug is uniqued ID. 3) Now I'm thinking again of allowing users to change slug Though I don't think it is all that useful. How many times does the content that someone already added, spent time on writing it, even require a change of either Title or slug? I don't think it is that many times. The biggest problem with the 3rd option is that If I use Slugs as IDs, I need to update the reference all over the place when Slug changes. Or maintain a table that would contain somekind of Slug history. What are you thoughts on these, I hope, valid questions?

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• split video (avi/h264) on keyframe

  - by m.sr

  Hallo. I have a big video file. ffmpeg, tcprobe and other tool say, it is an h264-stream in an AVI-container. Now i'd like to cut out small chunks form the video. Problem: The index of the video seam corrupted/destroyed. I kind of fixed this via mplayer -forceidx -saveidx <IndexFile> <BigVideoFile>. The Problem here is, that I'm now stuck with mplayer/mencoder which can use this index file via -loadidx <IndexFile>. I have tried correcting the index like described in man aviindex (mplayer -frames 0 -saveidx mpidx broken.avi ; aviindex -i mpidx -o tcindex ; avimerge -x tcindex -i broken.avi -o fixed.avi), but this didn't fix my video - meaning that most tools i've tested couldn't search in the video file. Problem: I sut out parts of the video via following command: mencoder -loadidx in.idx -ss 8578 -endpos 20 -oac faac -ovc x264 -sws 9 -lavfopts format=mp4 -x264encopts <LotsOfOpts> -of lavf -vf scale=800:-10,harddup in.avi -o out.mp4. Now here the problem is, that some videos are corrupted at the beginning. I think this is because the fact, that i do not necessarily cut at keyframe. Questions: What is the best way to fix the index of an avi "inline" so that every tool can again work as expected with it? How can i split at the keyframes? Is there an mencoder-option for this? Are Keyframes coming in a frequency? How to find out this frequency? (So with a bit of math it should be possible to calculate the next keyframe and cut there) Is ther perhaps some completely other way to split this movie? Doing it by hand is no option, i've to cut out 1000+ chunks ... Thanks a lot!

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• Any way to avoid creating a huge C# COM interface wrapper when only a few methods needed?

  - by Paul Accisano

  Greetings all, I’m working on a C# program that requires being able to get the index of the hot item in Windows 7 Explorer’s new ItemsView control. Fortunately, Microsoft has provided a way to do this through UI Automation, by querying custom properties of the control. Unfortunately, the System.Windows.Automation namespace inexplicably does not seem to provide a way to query custom properties! This leaves me with the undesirable position of having to completely ditch the C# Automation namespace and use only the unmanaged COM version. One way to do it would be to put all the Automation code in a separate C++/CLI module and call it from my C# application. However, I would like to avoid this option if possible, as it adds more files to my project, and I’d have to worry about 32/64-bit problems and such. The other option is to make use of the ComImport attribute to declare the relevant interfaces and do everything through COM-interop. This is what I would like to do. However, the relevant interfaces, such as IUIAutomation and IUIAutomationElement, are FREAKING HUGE. They have hundreds of methods in total, and reference tons and tons of interfaces (which I assume I would have to also declare), almost all of which I will never ever use. I don’t think the UI Automation interfaces are declared in any Type Library either, so I can’t use TLBIMP. Is there any way I can avoid having to manually translate a bajillion method signatures into C# and instead only declare the ten or so methods I actually need? I see that C# 4.0 added a new “dynamic” type that is supposed to ease COM interop; is that at all relevant to my problem? Thanks

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• jQuery UI Datepicker and Google Chrome not working

  - by zA

  Hi, I'm having some problems with jQueryUI Datepicker and Google Chrome. My datepicker is working as expected with IE8, Firefox and Safari. The problem is when clicking the datepicker connected textbox in Chrome. It gives me a crash page, "Oops, an error occurred...". On my page there's textbox with a datepicker. The datepicker is language dependent and it loads the correct language settings dynamically. The datepicker should also display the month and year dropdowns. The code is as follows $(function() {$.datepicker.setDefaults($.extend({ changeMonth: true, changeYear: true }, $.datepicker.regional['']));$('#<%= TextBoxBirthDate.ClientID %').datepicker($.datepicker.regional[$('#LabelRegionalSettings').val()]);}); If I only extend the datepicker with one option, i.e. changeYear, it works in Chrome. But if I add another option, i.e. changeMonth, the 'crash' in Chrome occurs. Is my code incorrect? If so, how do I fix it? Any help is greatly appreciated!

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• Kate gives out debug messages on the console from which it is started

  - by Elan

  I am new to Linux. I use Ubuntu 11.04. Whenever I open a file with kate from the commandline, with 'kate &' (or without ampersand), Kate starts out giving messages on the console. It continuously gives them out as I save a file or close one. They look like debug messages to me (sample below). I have used Synaptic package manager to install Kate. Uninstalling and installing the dev version did not make any change. Soon my console becomes cluttered. Is there a way to suppress these messages? There was nothing explicit in Kate settings either. Thank you, The messages look like kate(13412)/kate-filetree KateFileTreeModel::handleInsert: BEGIN! kate(13412)/kate-filetree KateFileTreeModel::handleInsert: creating a new root kate(13412)/kate-filetree ProxyItem::ProxyItem: ProxyItem(0x1796840,0x0,-1,QObject(0x0) .... kate(13435)/kate-filetree KateFileTreeModel::documentActivated: adding viewHistory ProxyItem(0x1eb7cf0,0x1eb6830,0,KateDocument(0x1d93ea0) , "Untitled" ) kate(13435)/kate-filetree KateFileTreeModel::updateBackgrounds: BEGIN! kate(13435)/kate-filetree KateFileTreeModel::updateBackgrounds: END! kate(13435)/kate-filetree KateFileTreeModel::documentActivated: END! kate(13435)/kate-filetree KateFileTreePluginView::viewChanged: END! X Error: BadWindow (invalid Window parameter) 3 Major opcode: 20 (X_GetProperty) Resource id: 0x5601b42 X Error: BadWindow (invalid Window parameter) 3 Major opcode: 20 (X_GetProperty) Resource id: 0x5601b42

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• How can parallelism affect number of results?

  - by spender

  I have a fairly complex query that looks something like this: create table Items(SomeOtherTableID int,SomeField int) create table SomeOtherTable(Id int,GroupID int) with cte1 as ( select SomeOtherTableID,COUNT(*) SubItemCount from Items t where t.SomeField is not null group by SomeOtherTableID ),cte2 as ( select tc.SomeOtherTableID,ROW_NUMBER() over (partition by a.GroupID order by tc.SubItemCount desc) SubItemRank from Items t inner join SomeOtherTable a on a.Id=t.SomeOtherTableID inner join cte1 tc on tc.SomeOtherTableID=t.SomeOtherTableID where t.SomeField is not null ),cte3 as ( select SomeOtherTableID from cte2 where SubItemRank=1 ) select * from cte3 t1 inner join cte3 t2 on t1.SomeOtherTableID<t2.SomeOtherTableID option (maxdop 1) The query is such that cte3 is filled with 6222 distinct results. In the final select, I am performing a cross join on cte3 with itself, (so that I can compare every value in the table with every other value in the table at a later point). Notice the final line : option (maxdop 1) Apparently, this switches off parallelism. So, with 6222 results rows in cte3, I would expect (6222*6221)/2, or 19353531 results in the subsequent cross joining select, and with the final maxdop line in place, that is indeed the case. However, when I remove the maxdop line, the number of results jumps to 19380454. I have 4 cores on my dev box. WTF? Can anyone explain why this is? Do I need to reconsider previous queries that cross join in this way?

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• Shopify: Replacing Product Radio Buttons With Dropdown Select

  - by Wade D Ouellet

  Hi, With Shopify I am trying to alter my product template to display a dropdown select list instead of radio buttons for my product variants. I managed to do this but when you try and add a product to the cart from the list it says, "No variant ID was passed." Here is the code for their radio buttons: <ul id="product-variants"> {% for variant in product.variants %} <li> {% if variant.available %} <input type="radio" name="id" value="{{variant.id}}" id="radio_{{variant.id}}" style="vertical-align: middle;" {%if forloop.first%} checked="checked" {%endif%} /> <label for="radio_{{variant.id}}"><span class="sku">{{ variant.sku }}</span> {%if variant.title != 'Default' %}{{ variant.title }} for {%endif%} <span class="price">{{ variant.price | money_with_currency }}</span></label> {% else %} <del style="margin-left: 26px">{{ variant.title }}</del>&nbsp;<span>Sold Out!</span> {% endif %} </li> {% endfor %} </ul> Here is the code for my dropdown select at this point: <select id="product-variants"> {% for variant in product.variants %} <li> {% if variant.available %} <option value="{{variant.id}}" selected="selected"><span class="sku">{{ variant.sku }}</span> {%if variant.title != 'Default' %}{{ variant.title }} for {%endif%} <span class="price">{{ variant.price | money_with_currency }}</span></option> {% else %} <del style="margin-left: 26px">{{ variant.title }}</del>&nbsp;<span>Sold Out!</span> {% endif %} </li> {% endfor %} </select> Thanks, Wade

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• Simple list based output instead of style and javascript ridden ASP.net webforms menu

  - by Mike

  Hi All, Is there a way (or component i could use) to output a simple menu. I just need it output as a list, like you would use for a simple superfish menu. I've looked at the menu control and cssadapters (css friendly) which kind of works, except there is a lot of styles and javascript output with the menu which is destroying the look. If I can't find something that outputs a clean list, my next option is to craft some jquery to delete these styles. This is not my preferred option. If you have a better idea, please let me know. Just something that looks like this: <ul> Main Menu <li> hi </li> <li> second menu <ul> <li> <a href="hi.aspx"> in second menu </a></li> <li> <a href="rabbits.aspx"> hi there </a></li> </ul> </li> </ul> Thanks.

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• VB.net (aspx) mysql connection

  - by StealthRT

  Hey all i am new to ASP.NET and VB.net code behind. I have a classic ASP page that connects to the mySQL server with the following code: Set oConnection = Server.CreateObject("ADODB.Connection") Set oRecordset = Server.CreateObject("ADODB.Recordset") oConnection.Open "DRIVER={MySQL ODBC 3.51 Driver}; SERVER=xxx.com; PORT=3306; DATABASE=xxx; USER=xxx; PASSWORD=xxx; OPTION=3;" sqltemp = "select * from userinfo WHERE emailAddress = '" & theUN & "'" oRecordset.Open sqltemp, oConnection,3,3 if oRecordset.EOF then ... However, i am unable to find anything to connect to mySQL in ASP.NET (VB.NET). I have only found this peice of code that does not seem to work once it gets to the "Dim conn As New OdbcConnection(MyConString)" code: Dim MyConString As String = "DRIVER={MySQL ODBC 3.51 Driver};" & _ "SERVER=xxx.com;" & _ "DATABASE=xxx;" & _ "UID=xxx;" & _ "PASSWORD=xxx;" & _ "OPTION=3;" Dim conn As New OdbcConnection(MyConString) MyConnection.Open() Dim MyCommand As New OdbcCommand MyCommand.Connection = MyConnection MyCommand.CommandText = "select * from userinfo WHERE emailAddress = '" & theUN & "'"" MyCommand.ExecuteNonQuery() MyConnection.Close() I have these import statements also: <%@ Import Namespace=System %> <%@ Import Namespace=System.IO %> <%@ Import Namespace=System.Web %> <%@ Import Namespace=System.ServiceProcess %> <%@ Import Namespace=Microsoft.Data.Odbc %> <%@ Import Namespace=MySql.Data.MySqlClient %> <%@ Import Namespace=MySql.Data %> <%@ Import Namespace=System.Data %> So any help would be great! :o) David

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