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I'm creating an application which lets you define events with a time frame. I want to automatically fill in the end date when the user selects or changes the start date. I can't quite figure out, however, how to get the difference between the two times, and then how to create a new end Date using that difference.
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I've recently discovered that it's possible to place .net assemblies on SQL Server >=2005 servers so that .net functions can be called in T/SQL statements. I wondered what uses people found for these and how they perform?
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In TFS whats the easiest way of linking a backlog item to a large number of other backlog items, without doing them one at a time? I do not have access to the underlying database so am unable to write a query to do it.
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I'm reading some MPEG Transport Stream protocol over UDP and it has some funky bitfields in it (length 13 for example). I'm using the "struct" library to do the broad unpacking, but is there a simple way to say "Grab the next 13 bits" rather than have to hand-tweak the bit manipulation? I'd like something like the way ...
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We deployed a live, fresh, swanky site using preview 3 including rigorous stress testing. Page Output caching was our saviour and afforded us the ability to meet our performance contractual requirements. My question is, is there a difference between action OutputCacheFilter and page output caching? Is the action outpu...
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I've been trying to understand how to read the memory of other processes on Mac OS X, but I'm not having much luck. I've seen many examples online using ptrace with PEEKDATA and such, however it doesn't have that option on BSD [man ptrace]. int pid = fork(); if (pid > 0) { // mess around with child-process's memory...
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We have a remoting singleton server running in a separate windows service (let's call her RemotingService). The clients of the RemotingService are ASP.NET instances (many many). Currently, the clients remoting call RemotingService and blocks while the RemotingService call is serviced. However, the remoting service is g...
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Is it possible to create "federated" Subversion servers? As in one server at location A and another at location B that sync up their local versions of the repository automatically. That way when someone at either location interacts with the repository they are accessing their respective local server and therefore has ...
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I'm trying to open a new browser tab with the results of a POST request. I'm trying to do so using a function containing the following code: var windowManager = Components.classes["@mozilla.org/appshell/window-mediator;1"] .getService(Components.interface s.nsIWindowMediator); var browserWindow = windowManager.get...
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I can't seem to find details on how to unsubscribe from ubiquity commands. The command list page only seems to have information about the installed commands and there are no links to deleting them. Am I missing something?
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I'd like to ignore multiple wildcard routes. With asp.net mvc preview 4, they ship with: RouteTable.Routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); I'd also like to add something like: RouteTable.Routes.IgnoreRoute("Content/{*pathInfo}"); but that seems to break some of the helpers that generate urls in my program...
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I'm doing some PHP stuff on an Ubuntu server. The path I'm working in is /mnt/dev-windows-data/Staging/mbiek/test_list but the PHP call getcwd() is returning /mnt/dev-windows/Staging/mbiek/test_list (notice how it's dev-windows instead of dev-windows-data). There aren't any symbolic links anywhere. Are there any other...
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I'd like to have dashes separate words in my URLs. So instead of: /MyController/MyAction I'd like: /My-Controller/My-Action Is this possible?
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How do you branch and merge with Apache Subversion using the TortoiseSVN client?
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In .NET perspective: What is a memory leak? How can you determine whether your application leaks? What are the effects? How can you prevent a memory leak? If your application has memory leak, does it go away when the process exits or is killed? Or do memory leaks in your application affect other processes on the syste...
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We’ve found that the unit tests we’ve written for our C#/C++ code have really paid off. But we still have thousands of lines of business logic in stored procedures, which only really get tested in anger when our product is rolled out to a large number of users. What makes this worse is that some of these stored proce...
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Is there any difference between int on_exit(void (*function)(int , void *), void *arg); and int atexit(void (*function)(void)); other than the fact that the function used by on_exit gets the exit status? That is, if I don't care about the exit status, is there any reason to use one or the other? Edit: Many of t...
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I have been trying to find a really fast way to parse yyyy-mm-dd [hh:mm:ss] into a Date object. Here are the 3 ways I have tried doing it and the times it takes each method to parse 50,000 date time strings. Does anyone know any faster ways of doing this or tips to speed up the methods? castMethod1 takes 3673 ms castM...
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By default the nursery is supposed to be 25% of the heap, we have the initial heap size set to 1GB. With verbose gc on, we see that our nursery is sized at 55-60MB. We have forced the size using -Xmns256M -Xmnx512M. Shouldn't this happen automatically?
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I have the following script. It replaces all instances of @lookFor with @replaceWith in all tables in a database. However it doesn't work with text fields only varchar etc. Could this be easily adapted? ------------------------------------------------------------ -- Name: STRING REPLACER -- Author: ADUGGLEBY -- Version...
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Terminals and shells are very powerful but can be complicated to learn, especially to get the best out of them. Does anyone know of a more GUI based command shell that helps a user or displays answers in a more friendly way? I'm aware of IPython, but even the syntax of that is somewhat convoluted, although it's a step ...
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Is there a tag in HTML that will only display its content if JavaScript is enabled? I know <noscript> works the opposite way around, displaying its HTML content when JavaScript is turned off. But I would like to only display a form on a site if JavaScript is available, telling them why they can't use the form if they d...
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I am looking for a method of storing Application Messages, such as "You have logged in successfully" "An error has occurred, please call the helpdesk on x100" "You do not have the authority to reset all system passwords" etc So that "when" the users decide they don't like the wording of messages I don't have to chang...
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Is it currently possible with pre release of ironruby to run rubygems? It seems as if I have to set an environment variable to find them?
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How can one determine, in code, how long the machine is locked? Other ideas outside of C# are also welcome. I like the windows service idea (and have accepted it) for simplicity and cleanliness, but unfortunately I don't think it will work for me in this particular case. I wanted to run this on my workstation at work ...
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I've got a menu in Python. That part was easy. I'm using raw_input() to get the selection from the user. The problem is that raw_input (and input) require the user to press Enter after they make a selection. Is there any way to make the program act immediately upon a keystroke? Here's what I've got so far: import sys ...
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How many ServiceContracts can a WCF service have? Specifically, since a ServiceContract is an attribute to an interface, how many interfaces can I code into one WCF web service? Is it a one-to-one? Does it make sense to separate the contracts across multiple web services?
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In .net frameworks 1.1, I use System.Configuration.ConfigurationSettings.AppSettings["name"]; for application settings. But in .Net 2.0, it says ConfigurationSettings is obsolete and to use ConfigurationManager instead. So I swapped it out with this: System.Configuration.ConfigurationManager.AppSettings["name"]; Th...
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Anybody have a script or alias to find untracked (really: unadded) files in a Perforce tree? EDIT: I updated the accepted answer on this one since it looks like P4V added support for this in the January 2009 release.
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The need arose, in our product, to determine how long the current user has been logged on to Windows (specifically, Vista). It seems there is no straight forward API function for this and I couldn't find anything relevant with WMI (although I'm no expert with WMI, so I might have missed something). Any ideas?
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I'm trying to get the following bit of code to work in LINQPad but am unable to index into a var. Anybody know how to index into a var in LINQ? string[] sa = {"one", "two", "three"}; sa[1].Dump(); var va = sa.Select( (a,i) => new {Line = a, Index = i}); va[1].Dump(); // Cannot apply indexing with [] to an expression o...
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How do you OCR an tiff file using Tesseract's interface in c#? Currently I only know how to do it using the executable.
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Is there an online resource somewhere that maintains statistics on the install-base of Java including JRE version information? If not, is there any recent report that has some numbers? I'm particularly interested in Windows users, but all other OS's are welcome too.
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In your applications, what's a "long time" to keep a transaction open before committing or rolling back? Minutes? Seconds? Hours? and on which database?
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So our web server apps need to connect to the database, and some other apps have startup scripts that execute at boot time. What's the best way to store the name/password for these applications, in terms of security, e.g. perhaps we don't want sysadmins to know the database password maintainability, e.g. making the co...
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What are some good resources to learn best practices for Javascript? I'm mainly concerned about when something should be an object vs. when it should just be tracked in the DOM. Also I would like to better learn how to organize my code so it's easy to unit test.
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I want to open a file for reading, the C++ way. I need to be able to do it for: text files, which would involve some sort of read line function. binary files, which would provide a way to read raw data into a char* buffer.
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I've just come across this in a WHERE clause: AND NOT (t.id = @id) How does this compare with: AND t.id != @id Or with: AND t.id <> @id I'd always write the latter myself, but clearly someone else thinks differently. Is one going to perform any better than the other? I know that using <> or != is going to bust any h...
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Perl has OOP features, but they are somewhat rarely used. How do you create and use Perl objects with methods and properties?
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I know the so-called textbook definition of unit tests and integration tests. What I am curious about is when it is time to write unit tests... I will write them to cover as many sets of classes as possible. For example, if I have a Word class, I will write some unit tests for the Word class. Then, I begin writing my...
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I've been using TortoiseSVN in a Windows environment for quite some time. It seems very feature-complete and nicely integrated into the Windows shell, and more importantly, it's fairly painless to teach to colleagues with little or no experience with source control. However, since we have moved to Windows Vista 64bi...
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Recently our site has been deluged with the resurgence of the Asprox botnet SQL injection attack. Without going into details, the attack attempts to execute SQL code by encoding the T-SQL commands in an ASCII encoded BINARY string. It looks something like this: DECLARE%20@S%20NVARCHAR(4000);SET%20@S=CAST(0x44004500...0...
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I am trying to register to a "Device added/ Device removed" event using WMI. When I say device - I mean something in the lines of a Disk-On-Key or any other device that has files on it which I can access... I am registering to the event, and the event is raised, but the EventType propery is different from the one I am ...
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What steps I need to perform in order to convert asp.net 2 application from IIS7 classic to integrated mode?
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I would like to have all developers on my team to use the same rules for formatting several types of code (ASPX, CSS, JavaScript, C#). Can I have visual studio look to a common place for these rules? I would like to not rely on export/import settings as that brings many settings along. I (for example) don't care what...
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I'm dynamically loading user controls adding them to the Controls collection of the web form. I'd like to hide user controls if they cause a unhandled exception while rendering. So, I tried hooking to the Error event of each UserControl but it seems that this event never fires for the UserControls as it does for Page c...
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What .NET namespace or class includes both Context.Handler and Server.Transfer? I think one may include both and my hunt on MSDN returned null.
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What is the best way to go about upgrading TFS 2005 to 2008? Also, what about the Team Build scripts ("Build Types"), are those compatible with Team Build 2008 or do they need converted/migrated somehow?
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I can create a menu item in the Windows Explorer context menu by adding keys in the registry to HKEY_CLASSES_ROOT\Folder\shell. How can I create submenu items to the just created menu item?
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If so how? Did you roll your own with jQuery or use the Microsoft AJAX toolkit? Did you create a webservice or call an action? EDIT : Please note that this question was asked before Microsoft announced that they were going to bundle jQuery in with VS/ASP.NET MVC. I think there is less of a discussion around this to...
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Ok, so I've been refactoring my code in my little Rails app in an effort to remove duplication, and in general make my life easier (as I like an easy life). Part of this refactoring, has been to move code that's common to two of my models to a module that I can include where I need it. So far, so good. Looks like it's...
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I'm doing a authorization check from a WinForms application with the help of the AzMan authorization provider from Enterprise Library and am receiving the the following error: Unable to update the password. The value provided as the current password is incorrect. (Exception from HRESULT: 0x8007052B) (Microsoft.Practic...
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So, I've read that it is not a good idea to install VS2008 on my test server machine as it changes the run time environment too much. I've never attempted remote debugging with Visual Studio before, so what is the "best" way to get line by line remote debugging of server side web app code. I'd like to be able to set ...
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Browsing through the git documentation, I can't see anything analogous to SVN's commit hooks or the "propset" features that can, say, update a version number or copyright notice within a file whenever it is committed to the repository. Are git users expected to write external scripts for this sort of functionality (whi...
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I have the following web config file. I am having some difficulty in retrieving the value from the "AppName.DataAccess.ConnectionString" key. I know I could move it to the AppSetting block and get it realtively easily but I do not wnat to duplicate the key (and thereby clutter my already cluttered web.config file). ...
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I installed TortoiseHg (Mercurial) in my Vista 64-bit and the context menu is not showing up when I right click a file or folder. Is there any workaround for this problem?
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I've got a situation where I have a main form that pops up an advanced configuration form that just has half a dozen matched check boxes and combo boxes to select some advanced options (the check boxes to enable/disable, the combo to select a media if enabled). If I just pass the individual settings for the check and c...
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I have been experimenting with woopra.com A web analytics tool. Which requires a piece of javascript code to be added to each page to function. This is easy enough with more dynamic sites with universal headers or footers but not for totally static html pages. I attempted to work round it by using a combination of Apac...
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Is it possible to cache database connections when using PHP like you would in a J2EE container? If so, how?
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From a web developer point of view, what changes are expected in the development arena when Google Chrome is released? Are the developments powerful enough to make another revolution in the web? Will the way we see web programming change? Or is it just another web browser?
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For certain types of sql queries, an auxiliary table of numbers can be very useful. It may be created as a table with as many rows as you need for a particular task or as a user defined function that returns the number of rows required in each query. What is the optimal way to create such a function?
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What would be a very fast way to determine if your connectionstring lets you connect to a database? Normally a connection attempt keeps the user waiting a long time before notifying the attempt was futile anyway.
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In SQL Server I have a DATETIME column which includes a time element. Example: '14 AUG 2008 14:23:019' What is the best method to only select the records for a particular day, ignoring the time part? Example: (Not safe, as it does not match the time part and returns no rows) DECLARE @p_date DATETIME SET @p_d...
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Things like $log$ and $version$ which add data upon check-in to the file. I'm interested in seeing the other ones and what information they can provide, but I can't get much info unless I know what they are called.
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Is a GUID unique 100% of the time? Will it stay unique over multiple threads?
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Some web applications, like Google Docs, store data generated by the users. Data that can only be read by its owner. Or maybe not? As far as I know, this data is stored as is in a remote database. So, if anybody with enough privileges in the remote system (a sysadmin, for instance) can lurk my data, my privacy could ge...
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I am looking to implement a data-driven wizard with the question tree stored in an Oracle database. What is the best schema to use to make the database portion flexible (i.e. easy to add new paths of questions) without sacrificing too much in terms of performance?
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Does anybody know if it's possible, and how, to programmatically send a SMS from the iPhone, with the official SDK / Cocoa Touch?
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I'm trying to perform a LINQ query on a DataTable object and bizarrely I am finding that performing such queries on DataTables is not straightforward. For example: var results = from myRow in myDataTable where results.Field("RowNo") == 1 select results; This is not allowed. How do I get something like this working? I'...
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I am in the middle of a "discussion" with a colleague about the best way to implement the data layer in a new application. One viewpoint is that the data layer should be aware of business objects (our own classes that represent an entity), and be able to work with that object natively. The opposing viewpoint is that ...
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Here's my scenario - I have an SSIS job that depends on another prior SSIS job to run. I need to be able to check the first job's status before I kick off the second one. It's not feasible to add the 2nd job into the workflow of the first one, as it is already way too complex. I want to be able to check the first job's...
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Once I've called DragManager.acceptDrag is there any way to "unaccept" the drag? Say that I have a view which can accept drag and drop, but only in certain areas. Once the user drags over one of these areas I call DragManager.acceptDrag(this) (from a DragEvent.DRAG_OVER handler), but if the user then moves out of this ...
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I have an SQL query that takes the following form: UPDATE foo SET flag=true WHERE id=? I also have a PHP array which has a list of IDs. What is the best way to accomplish this other than with parsing, as follows, ... foreach($list as $item){ $querycondition = $querycondition . " OR " . $item; } ... and using ...
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I have a friend that has a little bit of a holiday coming up and they want ideas on what they should do during the holiday, I plan to suggest programming to them, what are the pros and cons that I need to mention? I'll add to the list below as people reply, I apologise if I duplicate any entries. Pros I have so far Mi...
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NOTE: XMLIgnore is NOT the answer! OK, so following on from my question on XML Serialization and Inherited Types, I began integrating that code into my application I am working on, stupidly thinking all will go well.. I ran into problems with a couple of classes I have that implement IEnumerable and ICollection<T> The ...
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I'm building a RESTful web service which has multiple URIs for one of its resources, because there is more than one unique identifier. Should the server respond to a GET request for an alternate URI by returning the resource, or should I send an HTTP 3xx redirect to the canonical URI? Is HTTP 303 (see also) the most ap...
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In MS Access 2003 (I know, I know), I'm using the OLE Object data type to persist the sate of some objects that are marked as serializable (just using a IO.BinaryFormatter to serialize to a MemoryStream, and then saving that to the db as a Byte array). Does this work pretty much like a varbinary, or a blob? Are there...
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How can I find out which Service Pack is installed on my copy of SQL Server?
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I need to know how the performance of different XML tools (parsers, validators, XPath expression evaluators, etc) is affected by the size and complexity of the input document. Are there resources out there that document how CPU time and memory usage are affected by... well, what? Document size in bytes? Number of nodes...
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I tried finding a python script in google that will generate a random terrain when the game starts (or each time a the player advances to a new scene) but all the tools I found are for creating a terrain to render it, not for the game mode. Any idea how/where to find one? (I'm assuming that since Blender3D has game pro...
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Is it still worth to add the log4j library to a Java 5 project just to log let's say some exceptions to a file with some nice rollover settings. Or will the standard util.logging facility do the job as well? What do you think?
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I need to create an XML schema that looks something like this: <xs:element name="wrapperElement"> <xs:complexType> <xs:sequence> <xs:element type="el1"> <xs:element type="el2"> </xs:sequence> <xs:WhatGoesHere?> <xs:element type="el3"> <xs:element type="el4"> <xs:ele...
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It seems that it is impossible to capture the keyboard event normally used for copy when running a Flex application in the browser or as an AIR app, presumably because the browser or OS is intercepting it first. Is there a way to tell the browser or OS to let the event through? For example, on an AdvancedDataGrid I hav...
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Disclaimer: Near zero with marshalling concepts.. I have a struct B that contains a string + an array of structs C. I need to send this across the giant interop chasm to a COM - C++ consumer. What are the right set of attributes I need to decorate my struct definition ? [ComVisible (true)] [StructLayout(LayoutKind.Seq...
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I know this might be a no-brainer, but please read on. I also know it's generally not considered a good idea, maybe the worst, to let a browser run and interact with local apps, even in an intranet context. We use Citrix for home-office, and people really like it. Now, they would like the same kind of environment at wo...
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I writing a report in Visual Studio that takes a user input parameter and runs against an ODBC datasource. I would like to write the query manually and have reporting services replace part of the where clause with the parameter value before sending it to the database. What seems to be happening is that the @parmName I ...
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I absolutely love the Keep Remote Directory Up-to-date feature in Winscp. Unfortunately, I can't find anything as simple to use in OS X or Linux. I know the same thing can theoretically be accomplished using changedfiles or rsync, but I've always found the tutorials for both tools to be lacking and/or contradictory. I...
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In postgis, is the ST_GeomFromText call very expensive? I ask mostly because I have a frequently called query that attempts to find the point that is nearest another point that matches some criteria, and which is also within a certain distance of that other point, and the way I currently wrote it, it's doing the same ...
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When creating and executing a ajax request queue with $.manageAjax, I call ajaxManager.abort();, to abort the entire queue due to error, at which time I get an error stating: q[num] has no properties (jquery.ajaxmanager.js line 75) Here is the calling code: var ajaxManager = $.manageAjax({manageType:'sync', maxReq:0});...
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Header, footer and sidebars have fixed position. In the center a content area with both scroll bars. No outer scroll bars on the browser. I have a layout that works in IE7 and FF. I need to add IE6 support. How can I make this work? Here is an approximation of my current CSS. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTM...
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How can I left-align the numbers in an ordered list? 1. an item // skip some items for brevity 9. another item 10. notice the 1 is under the 9, and the item contents also line up Change the character after the number in an ordered list? 1) an item Also is there a CSS solution to change from numbers to alphabetic/r...
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I'm looking for a good article on using emacs as C/C++ IDE. Something like Steve Yegge's "Effective emacs".
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In one of my VB6 forms, I create several other Form objects and store them in member variables. Private m_frm1 as MyForm Private m_frm2 as MyForm // Later... Set m_frm1 = New MyForm Set m_frm2 = New MyForm I notice that I'm leaking memory whenever this (parent) form is created and destroyed. Is it necessary for me t...
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Soooo, I am starting this new job soon where most of the code is legacy MFC. The end goal is to convert/rewrite to C#. I'm a little rusty with MFC so writing some code so I can try and spark my memory. Anyway, was wondering the best way to connect to a SS2005 database with MFC. Back in the day CDatabase via ODBC was th...
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I'm trying to write a regex function that will identify and replace a single instance of a match within a string without affecting the other instances. For example, I have this string: 12||34||56 I want to replace the second set of pipes with ampersands to get this string: 12||34&&56 The regex function needs to be a...
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I previously asked about Version Cue 3 vs Subversion. I think this is a better question and someone suggested http://www.gridironsoftware.com/Flow/ I hope this question will allow others to join in and suggest other tools or give specific recommendation to using Version Que versus other tools.
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I need to create a linked server to a DB2 database on a mainframe. Has anyone done this successfully on a 64-bit version of SQL Server 2005? If so, which provider and settings were used? It's important that the linked server work whether we are using a Windows authenticated account to login to SQL Server or a SQL Serve...
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My company has developed a long standing product using MFC in Visual C++ as the defacto standard for UI development. Our codebase contains ALOT of legacy/archaic code which must be kept operational. Some of this code is older than me (originally written in the late 70s) and some members of our team are still on Visual ...
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I remember first learning about vectors in the STL and after some time, I wanted to use a vector of bools for one of my projects. After seeing some strange behavior and doing some research, I learned that a vector of bools is not really a vector of bools. Are there any other common pitfalls to avoid in C++?
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We have a Windows Server Web Edition 2003 Web Farm. What can we use that handles replication across the servers for: Content & IIS Configuration (App Pools, Virtual Directories, etc...) We will be moving to Windows 2008 in the near future, so I guess what options are there on Windows 2008 as well.
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