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• Can I call a com object from a referenced .net library in asp.net 3.5

  - by Alon Amir

  Hi, I'm using ASP.NET on C# and I have a referanced library in the same solution in VB which calls a COM object using CreateObject. When I run the site on my comp it works, when I run it on my IIS 6 it gives me a stackoverflow on the method call. Now I have a script wich runs the VB code on the IIS6 and it works just fine. It must be something with the ASP... How can I call Com objects within ASP..., Do I have to do something special? Pls help.

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• JAVA Calendar - How to check if it's Saturday/Sunday ?

  - by Cristian

  What this code does is print the dates of the current week from Monday to Friday. It works fine, but I want to ask something else: If today is Saturday or Sunday I want it to show the next week... how do I do that? Here's my working code so far (thanks to StackOverflow!!): // Get calendar set to current date and time Calendar c = Calendar.getInstance(); // Set the calendar to monday of the current week c.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY); // Print dates of the current week starting on Monday to Friday DateFormat df = new SimpleDateFormat("EEE dd/MM/yyyy"); for (int i = 0; i <= 4; i++) { System.out.println(df.format(c.getTime())); c.add(Calendar.DATE, 1); Thanks a lot! I really appreciate it as I've been searching for the solution for hours...

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• TimeSpan to Localized String in C#

  - by MadBoy

  Is there an easy way (maybe built in solution) to convert TimeSpan to localized string? For example new TimeSpan(3, 5, 0); would be converted to 3 hours, 5minutes (just in polish language). I can of course create my own extension: public static string ConvertToReadable(this TimeSpan timeSpan) { int hours = timeSpan.Hours; int minutes = timeSpan.Minutes; int days = timeSpan.Days; if (days > 0) { return days + " dni " + hours + " godzin " + minutes + " minut"; } else { return hours + " godzin " + minutes + " minut"; } } But this gets complicated if i want to have proper grammar involved.

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• NETWORK_ERROR: XMLHttpRequest Exception 101

  - by pawan Mangal

  I am getting this Error NETWORK_ERROR: XMLHttpRequest Exception 101 when trying to get XML content from one site. Here is my code var xmlhttp; if(window.XMLHttpRequest) { xmlhttp = new XMLHttpRequest(); } if (xmlhttp==null) { alert ("Your browser does not support XMLHTTP!"); return; } xmlhttp.onReadyStateChange=function() { if(xmlhttp.readyState==4) { var value =xmlhttp.responseXML; alert(value); } } xmlhttp.open("GET",url,false); xmlhttp.send(); //alert(xmlhttp.responseXML); } xmlhttp.open("GET",url,false); xmlhttp.send(null); Does any one have a solution?

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• XmlSerializer and Mark-up (Xml or Html)

  - by Kieron

  Hi, I've a requirement to serialize any class provided (decorated with the appropriate XmlElement/ XmlAttribute etc), but some of the properties may contain some sort of mark-up...usually HTML, but it could as easily be XML in the future. When trying to serialize the class the XmlSerializer crashes. I'd hope to be able to apply no more than an attribute to the property (currently set to XmlText) in the hope that it would wrap the content in CDATA[...], but that doesn't seem to work. I've seen several 'workarounds' like the one here, but I'd hoped for something a little less impactful for the developing consumer. Does anyone know of any 'nicer' less invasive solution...? Thanks, Kieron

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• internet explorer ashx file problem

  - by vondip

  My problem is a bit complicated: I am writing in c#, asp.net and using jquery I have a page that sends requests to the server using jquery's ajax method. I have a ashx file (handler) to respond to these request. User can perform several changes on several pages, then use some method that will call the ajax method. My ashx file reads some values From the session variables and acts accordingly. This works fine in all browsers but in internet explorer. In internet explorer the session seems to hold old information (old user ids'). It's incredible, the same code works fine in firefox, chrome and safari but fails with ie. What could be causing it? I have no clue where to even start looking for a solution. btw, Sorry for the general title, couldn't figure out how to explain in just few words. Thank You!

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• Subclass of Subclass fluent nHibernate

  - by Xavier Hayoz

  Hi all My model looks like this: public class SelectionItem : BaseEntity // BaseEntity ==> id, timestamp stuff {//blabla} public class Size : SelectionItem {//blabla} public class Adultsize : Size {//blabla} I would like to use class-hierarchy-per-table-method of fluent nhibernate public class SelectionItemMap : BaseEntityMap<Entities.SelectionItem.SelectionItem> { public SelectionItemMap() { Map(x => x.Name); Map(x => x.Picture); Map(x => x.Code); DiscriminateSubClassesOnColumn("SelectionItemType"); } } and reset a DiscriminateSubClassesOnColumn on the following subclass: public class SizeMap : SubclassMap<Size> { DiscriminateSubClassesOnColumn("SizeType") } public Adultsize : SubclassMap<Adultsize> {} But this doesn't work. I found a solution on the web: link text but this method is depreciated according to resharper. How to solve it? thank you for further informations.

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• How do I change apache2 DocumentRoot (default snow leopard install) and not get "You don't have perm

  - by David Peek

  I'm trying to point DocumentRoot at a directory in my user folder. While I can happily point DocumentRoot at /Library/WebServer/Documents and ~/Sites I keep getting "You don't have permission to access / on this server." when I point it anywhere else. OK, I just found a solution mid-question (stack overflow is just that good) by changing the user/group apache runs under to myuser/admin. I'm sure there must be a better way though. Surely some kind of permissions magic on the directory I'm pointing at?

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• Referencing assemblies created with ILMerge in Visual Studio projects

  - by Daniel Schaffer

  I have a solution in Visual Studio with 5 projects. They are: Foo.Core: Core functionality Foo.Api: Generated code built on top of core Foo.Web: Web-specific extensions Foo.Web.Mvc: MVC-specific extensions Newtonsoft.Json: 3rd party library I want to use ILMerge to merge Foo.Core, Foo.Api and Newtonsoft.Json into a single assembly, called Foo. That's the easy part. The problem I'm running into is that Foo.Web and Foo.Web.Mvc both need to reference all three of the merged assemblies. If I reference the original assemblies, they will have invalid references after I do the ILMerge. If I reference the ILMerged assembly, I have to reference a debug assembly and then change it before I package everything up, which doesn't seem ideal. I've tried creating a project called Foo, which references the 3 merged assemblies and replaces its own output with the ILmerged assembly, but that doesn't seem to work at all. Is there a reliable way to do this?

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• Eclipse thinks there are problems with my Android project...

  - by Dan Watling

  I have an Android project and Eclipse is telling me my project has an error with its build path. Specifically, the problem view shows "The project cannot be built until build path errors are resolved". The entire project builds just fine, meaning there are no red X's on any of the files. I can build the project outside of Eclipse, deploy it to the device, and it runs just fine, so I know there isn't a problem with my source code or layouts. The strange thing is when I remove the 'src' folder from the build path in Eclipse, clean and build the project, then re-add the 'src' folder to the build path and build the project it works again. However, within a few changes it gives me the same problem. Has anyone else encountered this before? Does anyone know of a solution? It's driving me mad! Thanks, -Dan

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• Using SqlBulkCopy in a multithread scenario with ThreadPool issue

  - by Ruben F.

  Hi. I'm facing a dilemma (!). In a first scenario, i implemented a solution that replicates data from one data base to another using SQLBulkCopy synchronously and i had no problem at all. Now, using ThreadPool, i implemented the same in a assynchronously scenario, a thread per table, and all works fine, but past some time (usualy 1hour because the operations of copy takes about the same time), the operations sended to the ThreadPool stop being executed. There are one diferent SQLBulkCopy using one diferent SQLConnection per thread. I already see the number of free threads, and they are all free at the begining of the invocation...I have one AutoResetEvent to wait that the threads finish their job before launching again, and a Semaphore FIFO that hold the counter of active threads. There are some issue that I have forgotten or that I should avaliate when using SqlBulkCopy? I apreciate some help, because my ideas are over;) Thanks

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• Software to create a knowledge base/FAQ system

  - by H1Man

  Our company is looking to build a web-based knowledge base system that can be used by our clients/end users to reduce the amount of support calls. Couple important notes: This is aimed at our end users, in other words, non-techies. So the UI has to be easy to use Should have the excellent (fast, accurate) search Should have ability to rate and comment on articles This will only be maintained by one or 2 people, so security isn't a big concern Something similar to what Microsoft is doing with their Knowledge Base. http://support.microsoft.com/search/ Does anyone have any recommendations on what software I can use? Thanks, H. Edit: I should have made this clear before but I don't mean build as in having our developers build a support/kb system from the ground up. I am looking to use a existing software package/solution that can be used to implement a knowledge base/support site.

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• JavaFX MediaPlayer: problem with setting of mute and volume properties

  - by lady_disaster

  Hi, first of all sorry for my bad english, I'm Italian... :) I'm developing with JavaFX and I'm new of it... I've an instance of a MediaPlayer and I can play songs, but if I set the volume properties to 0 or to other values the volume doesn't change and the song plays at the maximum. If I set the mute properties to true it's the same thing!!! I think that the setting of volume and mute properties doesn't work! Have you found this problem? Do you know which is the solution? Where am I wrong? Please help me... Thanks in advance!!!!

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• WCF SSL secure transfer or large payloads without changing firewall.

  - by Sir Mix

  I need to transfer small amounts of data intermittently from clients to our server in a secure fashion and pull down large binary files from the server ocassionally. It's important for all this to be reliable. I'm anticipating 100,000 clients. I control both ends, but I want to deliver a solution that doesn't require changing the firewall for the majority of customers. A lag of one or two minutes before the information migrates to the server or comes down seems to be acceptable at this time. We need to make the connection secure, so was thinking about SSL, but open to suggestions. Basically, what is the best binding to use in this situation so that we have a secure transmission and the system handles the stress and load in a way that works for 95% of clients out of the box (firewalls will not block in majority of firewall configurations).

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• C# yield return not returning an item as expected

  - by Jiho Han

  I have following code: private void ProcessQueue() { foreach (MessageQueueItem item in GetNextQueuedItem()) PerformAction(item); } private IEnumerable<MessageQueueItem> GetNextQueuedItem() { if (_messageQueue.Count > 0) yield return _messageQueue.Dequeue(); } Initially there is one item in the queue as ProcessQueue is called. During PerformAction, I would add more items to _messageQueue. However, the foreach loop quits after the initial item and does not see the subsequent items added. I sense that somehow the initial state of the queue is being captured by yield. Can someone explain what is happening and give a solution?

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• Delegate, BeginInvoke. EndInvoke - How to clean up multiple Async threat calls to the same delegate?

  - by Dan

  I've created a Delegate that I intend to call Async. Module Level Delegate Sub GetPartListDataFromServer(ByVal dvOriginal As DataView, ByVal ProgramID As Integer) Dim dlgGetPartList As GetPartListDataFromServer The following code I use in a method Dim dlgGetPartList As New GetPartListDataFromServer(AddressOf AsyncThreadMethod_GetPartListDataFromServer) dlgGetPartList.BeginInvoke(ucboPart.DataSource, ucboProgram.Value, AddressOf AsyncCallback_GetPartListDataFromServer, Nothing) The method runs and does what it needs to The Asyn callback is fired upon completion where I do an EndInvoke Sub AsyncCallback_GetPartListDataFromServer(ByVal ar As IAsyncResult) dlgGetPartList.EndInvoke(Nothing) End Sub It works as long as the method that starts the BeginInvoke on the delegate only ever runs while there is not a BeginInvoke/Thread operation already running. Problem is that the a new thread could be invoked while another thread on the delegate is still running and hasnt yet been EndInvoke'd. The program needs to be able to have the delegate run in more than one instance at a time if necessary and they all need to complete and have EndInvoke called. Once I start another BeginInvoke I lose the reference to the first BeginInvoke so I am unable to clean up the new thread with an EndInvoke. What is a clean solution and best practice to overcome this problem?

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• One pass multiple whitespace replace to single whitespace and eliminate leading and trailing whitesp

  - by Phoenix

  void RemoveSpace(char *String) { int i=0,y=0; int leading=0; for(i=0,y=0;String[i]!='\0';i++,y++) { String[y]=String[i]; // let us copy the current character. if(isspace(String[i])) // Is the current character a space? { if(isspace(String[i+1])||String[i+1]=='\0'||leading!=1) // leading space y--; } else leading=1; } String[y]='\0'; } Does this do the trick of removing leading and trailing whitespaces and replacing multiple whitespaces with single ones ?? i tested it for null string, all whitespaces, leading whitespaces and trailing whitespaces. Do you think this is an efficient one pass solution ??

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• Compiling emails into project documentation

  - by zpinter

  What's the best way to turn a bunch of email threads into a working project documentation? This other stack overflow question seems a little stale, but might be the right idea: http://stackoverflow.com/questions/11612/is-there-any-wiki-engine-that-supports-page-creation-by-email Also, Evernote shared notebooks might be an idea: http://blog.evernote.com/2009/06/25/notebook-sharing-phase-1/ Perhaps there's a good way to convert email threads into HTML or Word docs and save them to a shared dropbox folder? My ideal solution would be one where I could forward or copy a thread of emails into one spot, and go back after the fact to organize/categorize/add to it. Any ideas?

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• C# Winforms: PropertyGrid not updated when item added to Collection

  - by MysticEarth

  I've got a custom class which can be edited through the PropertyGrid. In that class I've got a custom Collection (with custom PropertyDescriptor and TypeConverter). Items can be added to or removed from the Collection with the default Collection Editor. This all works fine. But - after closing the Collection Editor, the PropertyGrid is not updated. When I manual make a call to Refresh() on the PropertyGrid, the changes are reflected in the PropertyGrid. How can I get the PropertyGrid to automatically refresh when the Collection Editor has been closed? I sought for a solution earlier where I should subclass CollectionEditor (which I can't seem to find). Please help.

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• EF4, MVC 3, Azure and Code First or Traditional

  - by RichardAlanA

  I am planning to build a web application using ASP MVC3 that runs on Azure with a SQL Azure back end. I would like to use the Microsoft stack and have no plans to ever change to another stack. I am looking into the use of WCF and WF but that would be in the future. I looked at the traditional and Code First approach to using Entity Framework but I can't see if there is any advantage in using one or the other approach. Sure they each have advantages but for me I don't care if my classes do inherit from EF classes. All I want is to find the most efficient solution. Can anyone out there give me some advice as to which approach might be the best. thanks very much Richard

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• Mongomapper - bootstrapping techniques

  - by egarcia

  I've just begun creating a rails application using mongomapper for my models. I'm wondering what solution should I use for bootstrapping my app with it. All my previous experience is with ActiveRecord & PostgreSQL, in which I have used several gems for bootstrapping. The one I liked the most was bootstrapper (+ factorygirl + faker). Does anyone know whether these work ok with mongomapper? Can anyone suggest better alternatives? Is there anything obvious I need to know when bootstrapping mongodb?

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• Having Problems Getting FreeTTS and JSAPI Working

  - by Travis

  I have a simple project idea based off of FreeTTS and the JSAPI (Java Speech API) I've downloaded and unpacked FreeTTS and run their build script. Then tried compiling my code linking in the lib directory into the class path like this: javac -cp /home/travis/Desktop/freetts-1.2/lib HelloUnleashedReader.java Which then compiles to java bytecode just fine. However when I run: java HelloUnleashedReader I get the following error: Exception in thread "main" java.lang.NoClassDefFoundError: javax/speech/EngineModeDesc Any help on this issue would be greatly appreciated as there are many sites around the net discussing problems with getting it to work but not many that discuss their solution.

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• Redirecting from ASP.NET WebForms to MVC

  - by Paul Gordon

  Hi there, We have a large existing ASP.NET WebForms application, but we are now moving over to MVC. Rather than go through a painful process of trying to integrate MVC into the existing app, we're looking at creating a brand new VS project to completely isolate the new code. As a first step, we are wanting to use the existing login process of the WebForms app, then redirect over to the MVC app. Does anyone know of an easy way to do this (i.e. redirect from a WebForms project to the MVC project, in the same VS solution)? All the information I've found so far suggests either starting from scratch in MVC, or combing MVC into the existing Webforms project - neither of which is very feasible. Many thanks, Paul

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• Algorithm and data structure learning resources for dynamic programming

  - by Pranav

  Im learning dynamic programming now, and while I know the theory well, designing DP algorithms for new problems is still difficult. This is what i would really like now- A book or a website, which poses a problem which can be solved by dynamic programming. Also there is the solution with an explanation available, which i would like to see if i cant solve the problem even after butting my head at it for a few hours. Is there some resource that provides this sort of a thing for several categories of algorithms- like graph algorithms, dynamic programming, etc? P.S. I considered Topcoder, but the solutions there are not really appropriate for learning to implement efficient solutions.

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• Excel parsing (xls) date error

  - by tau-neutrino

  I'm working on a project where I have to parse excel files for a client to extract data. An odd thing is popping up here: when I parse a date in the format of 5/9 (may 9th) in the excel sheet, I get 39577 in my program. I'm not sure if the year is encoded here (it is 2008 for these sheets). Are these dates the number of days since some sort of epoch? Does anyone know how to convert these numbers to something meaningful? I'm not looking for a solution that would convert these properly at time of parsing from the excel file (we already have thousands of extracted files that required a human to select relevant information - re-doing the extraction is not an option).

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