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• Is it possible to compile IronRuby code to a .NET assembly (EXE or DLL)

  - by Chris Ammerman

  My scenario consists of the following points. I have a packaged software product I am developing in C# Since it is a packaged product, the public interfaces of the assemblies need to be tightly controlled... All assemblies are strong-named Any classes that don't absolutely have to be "public" are "internal" I want to write unit tests for those "internal" classes, since they are the bulk of the code And finally.... I want to try writing the unit tests in Ruby. Since the unit tests would be external to the assembly containing the code under test, the assemblies under test would each need to have an "InternalsVisibleTo" attribute specifying the name of the unit test assembly. Which of course would mean that the Ruby unit tests would have to compile down to a .NET assembly so they can be given access in this way. Can this be done? If so, how? All I can find on the web about "compiling IronRuby" is about building the actual IronRuby runtime from source.

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• Is .net 4.0 really not capable of sending emails with attachments larger than 3MB's

  - by JL

  I recently had an issue after upgrading my .net framework to 4.0 from 3.5, I did this because in 4.0 the SMTPClient finally sends a QUIT command to the SMTP server. However recently I was most disturbed to run into a base64 decoding issue, when sending out emails with attachments larger than 3MB's using .net v4 smtpclient: System.Net.Mail.SmtpException: Failure sending mail. --- System.IndexOutOfRangeException: Index was outside the bounds of the array. at System.Net.Base64Stream.EncodeBytes(Byte[] buffer, Int32 offset, Int32 count, Boolean dontDeferFinalBytes, Boolean shouldAppendSpaceToCRLF) at System.Net.Base64Stream.Write(Byte[] buffer, Int32 offset, Int32 count) at System.Net.Mime.MimePart.Send(BaseWriter writer) at System.Net.Mime.MimeMultiPart.Send(BaseWriter writer) at System.Net.Mail.Message.Send(BaseWriter writer, Boolean sendEnvelope) at System.Net.Mail.SmtpClient.Send(MailMessage message) --- End of inner exception stack trace --- I read this connect bug listing here: http://connect.microsoft.com/VisualStudio/feedback/details/544562/cannot-send-e-mails-with-large-attachments-system-net-mail-smtpclient-system-net-mail-mailmessage and also this bug listing here: http://connect.microsoft.com/VisualStudio/feedback/details/102644/system-net-mail-fails-to-send-index-was-outside-the-bounds-of-the-array So my question is - is .net 4.0 RTM really not capable of such an easy task as sending a message with an attachment larger than 3MB's?

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• Microsoft Detours

  - by Bruce

  I am new to Microsoft Detours. I have installed it to trace the system calls a process makes. I run the following commands which I got from the web syelogd.exe /q C:\Users\xxx\Desktop\log.txt withdll.exe /d:traceapi.dll C:\Program Files\Google\Google Talk\googletalk.exe I get the log file. The problem is I don't fully understand what is happening here. How does detours work? How does it trace the system calls? Also I don't know how to read the output in log.txt. Here is one line in log.txt 20101221060413329 2912 50.60: traceapi: 001 GetCurrentThreadId() Finally I want to get the stack trace of the process. How can I get that?

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• Perl - What is Larry?

  - by user350571

  I was reading some Perl book and I find meant-to-be funny mentions to something named Larry. Some times it is mixed in a religious context (like "Larry multiplied the code and distributed among coders"). Since I'm not stupid, I tried to think a bit and I believe I finally got it... It's about Larry the cow from Gentoo right?. And the religious context is because cows are normally associated to religion. Anyway, why the references? There is something about camels and cows together that I'm not following?

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• Netbeans jar file icon problems

  - by Erma

  I finally found how to make an exe project in Netbeans, so a jar file and execute it from the DESKTOP. The only problem I have ocurred is that after I open the jar file and login with my username and password the button icons are not shown, if I put a string it appears but if I put the image it doesn't appear. So,I had to restore this code: JButton btnNew = new JButton(new ImageIcon("new.gif")); JButton btnUpdate = new JButton(new ImageIcon("NotePad.gif")); JButton btnDelete = new JButton(new ImageIcon("delete.gif")); JButton btnSearch = new JButton(new ImageIcon("find.gif")); and put this one: JButton btnNew = new JButton("ADD"); JButton btnUpdate = new JButton("Update"); JButton btnDelete = new JButton("Delete"); JButton btnSearch = new JButton("Search"); It now works but I would like to have the icons please. Any idea?

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• Calling a protected Windows executable with Perl

  - by Jake

  I'm trying to write a perl script that determines which users are currently logged into Windows by using query.exe (c:\Windows\system32\query.exe). Perl is unable to access this file, unable to execute it, even unable to see that it exists, as I've found with the following code: print `dir c:\\windows\\system32\\query*`; This produces the following output: 07/13/2009 05:16 PM 1,363,456 Query.dll 1 File(s) 1,363,456 bytes 0 Dir(s) 183,987,658,752 bytes free I've checked the user executing the script using perl's getlogin function, and it returns the name of a member of the local Administrators group (specifically, me). I've also tried adding read/execute permissions for "Everyone", but windows keeps giving me access denied errors when I try to modify this file's permissions. Finally, I've tried running perl.exe as an administrator but that doesn't fix the problem either. Is this something I can solve by changing some settings in Windows? Do I need to add something to my perl script? Or is there just no way to grant perl access to some of these processes?

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• VB.NET equivalent of Timeout.bas Module from VB6

  - by user557889

  Hi all. I am looking for the VB.NET code of a very handy little *.bas file I used to use in Visual Basic 6. The file was called timeout.bas and it was the greatest module ever to me. I want to switch to start using VB.NET finally but this single file is holding me back. Trying to use .NET without it is like crippling me. Can someone, anyone please make this code work in .NET for me? It's only a couple lines: Attribute VB_Name = "Module1" Sub timeout(duration) starttime = Timer Do While Timer - starttime < duration DoEvents Loop End Sub Basically you add that timeout.bas file which contains that code and you can just do: Text1.text = "hello" timeout .5 Text1.text "World!" It's so awesome. Anyone PLEASE re-do it in VB.NET for me! Thanks!

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• Reading and parsing email from Gmail using C#, C++ or Python

  - by jpnavarini

  I have to do a Windows application that from times to times access a Gmail account and checks if there is a new email. In case there is, it must read the email body and subject (a simple text email, without images or attachments). Please, do not use paid libs, and in case of any other libs used, give the download path. And I need the email body and subject only. So if the long and complex message that comes from Gmail could be parsed and only two strings containing the subject and the body, it would be perfect. Finally, I only have to get the new messages arrived since the last execution. So the read messages could be marked as "read" and only the new ones (marked as "new") are considered. The code can be written in Python or C++, but I prefer it in C#. Thank you for the help.

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• Statistics: combinations in Python

  - by Morlock

  I need to compute combinatorials (nCr) in Python but cannot find the function to do that in 'math', 'numyp' or 'stat' libraries. Something like a function of the type: comb = calculate_combinations(n, r) I need the number of possible combinations, not the actual combinations, so itertools.combinations does not interest me. Finally, I want to avoid using factorials, as the numbers I'll be calculating the combinations for can get to big and the factorials are going to be monstruous. This seems like a REALLY easy to answer question, however I am being drowned in questions about generating all the actual combinations, which is not what I want. :) Many thanks

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• How to let parent control know that its child got focus?

  - by Axarydax

  Hi there, imagine that I have a Form with 9 controls (TabbedStuffControl) in a 3x3 tile, and these controls contain TabControls containing another control (StuffControl) with ListBoxes and TextBoxes. I'd like to know a proper way to let TabbedStuffControl that its child has received a focus? e.g. user clicks into a textbox of StuffControl or drags something to listbox of StuffControl. Eventually the Form should know which TabbedStuffControl is active Do I need to hook up GotFocus event of TextBoxes and ListBoxes and TabControls, then dispatch another event to finally let Form know who got focus? I think that there should be a simpler way - that somehow TabbedStuffControl knows that its child got focus, so there would be only one place in code that I'll hook up. Thanks.

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• Security exception with ASP.NET AJAX toolkit

  - by Rod

  I've got an ASP.NET WebForms app that I've written, which uses the ASP.NET AJAX Toolkit. I've put the MultiView control onto the web form, and it worked fine, when I had it under Vista. Well, I had to replace my machine (HD failed) and I went to Windows 7 Ultimate. I tried copying the ASP.NET app from the system (before it finally failed for good) and put it onto the Windows 7 machine. I can bring up the app fine, go to all pages, but the one with these controls on it. When I do I get the following error: Security Exception Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file. Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. What's going on? How do I fix it?

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• Calculate NSString size to adjust UITextField frame

  - by Bernd Plontsch

  I have issues calculating the accurate size of a NSString displayed in a UITextField. My goal is to update the textfield frame size according to the string size programmatically (without using sizeToFit). I am using the sizeWithFont function. -(void)resizeTextFieldAccordingToText:(NSString*)textFieldString { CGPoint originalCenter = self.textField.center; UIFont* currentFont = [textField font]; CGSize newSize = [textFieldString sizeWithFont:currentFont]; //Same incorrect results with the extended version of sizeWithFont, e.g. //[textFieldString sizeWithFont:currentFont constrainedToSize:CGSizeMake(300.0, 100.0) lineBreakMode:NSLineBreakByClipping]; [self.textField setFrame:(CGRectMake(self.textField.frame.origin.x, self.textField.frame.origin.y, newSize.width, newSize.height))]; [self.textField setCenter:originalCenter]; } Problem: While this return correct size results at first its becomes more and more unprecise by adding characters therefore finally starts clipping the string (as seen in the right screenshot). How do I get the accurate size of the textField string for correctly adjusting its size?

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• Current state of client-side XSLT

  - by Casey

  Last I heard, Blizzard was one of the few companies to put client-side XSLT into practice (2008). Is this still the case in 2011, or are more people now exploring this technique in production?  It seems that modern browsers (IE9, FF4, Chrome) and client processing power are primed to exploit this standard for tangible savings in server CPU power and bandwidth on large scale properties. Am I missing something? The negative aspects I'm aware of include * additional rendering time * additional assets required on uncached page load * additional layer of complexity * noticably less developer experience than server-side template techniques The benefits I perceive include * distributed template composition (offloaded on the client) * caching of common template fragments offloaded on the client * logical separation of document structure and data * well-documented web standard supported by all modern browsers Finally, although I know it's impossible to predict the future, I am curious to know opinions on whether or not client-side XSLT's day will come. With interest in HTML5 driving users to upgrade their browsers and developers to explore new techniques, I would say yes. How about you? Thanks in advance, Casey

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• UML Class Relationships

  - by 01010011

  Hi, I would like to confirm whether I am on the right track when identifying common UML class relationships. For example, is the relationship between: 1 a stackoverflow member and his/her stackoverflow user account categorized as a composition relationship or an aggregation relationship? At first I thought it was an association because this member "has a" account. However on second thought, I am thinking its composition because each "part" (user account) belongs to only one whole (user) at a time, meaning for as long as I am logged into stackoverflow, I have to use this one and only account until I log off. If I log back onto stackoverflow with a different account then its composition again. Do you agree? 2 a database and a person's user account an aggregation relationship? I think so because 1 database (the whole) can store 0...* number of user accounts (the parts) but another database can store the same user accounts. Finally, can anyone recommend a website that specializes in designing code using UML? Thanks in advance

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• iPhone In-App Purchase Store Kit error -1003 "Cannot connect to iTunes Store"

  - by Rei

  Hi all- I've been working on adding in-app purchases and was able to create and test in-app purchases using Store Kit (yay!). During testing, I exercised my app in a way which caused the app to crash mid purchase (so I guess the normal cycle of receiving paymentQueue:updatedTransactions and calling finishTransaction was interrupted). Now I am unable to successfully complete any transactions and instead am getting only transactions with transactionState SKPaymentTransactionStateFailed when paymentQueue:updatedTransactions is called. The transaction.error.code is -1003 and the transaction.error.localizedDescription is "Cannot connect to iTunes Store"! I have tried removing all products from iTunesConnect, and rebuilt them using different identifiers but that did not help. I have also tried using the App Store app to really connect to the real App Store and download some apps so I do have connectivity. Finally, I have visited the Settings:Store app to make sure I am signed out of my normal app store account. Any ideas? -Rei

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• Linear Layout Issue at Runtime

  - by George

  Hi all, I am trying to build a layout dynamically which display some text and image for the most part, but has a series of buttons placed next to each other in the bottom. I have a linear layout that carries the text, another linear layout that carries the image. And yet another linear layout that carries the buttons that get created in a for loop. I have a main layout aligned vertical that adds the text, image and buttons layout, in that order. To finally generate something like this: Text .... Image ... Button1 Button2 Button3.... The problem is the number of buttons get decided at runtime, so if there are more than 4 buttons, the 5th button gets displayed really tiny. Also, when I tilt the phone, I get only the text and image showing, but no buttons coz the image covers the entire screen. Layoutting seems to be pretty complicated to me, any help is appreciated! Thanks George

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• Updating a Data Source with a Dataset

  - by Paul

  Hi, I need advice. I have asp.net web service and winforms client app. Client call this web method and get dataset. 1. [WebMethod] 2. public DataSet GetSecureDataSet(string id) 3. { 4. 5. 6. SqlConnection conn = null; 7. SqlDataAdapter da = null; 8. DataSet ds; 9. try 10. { 11. 12. string sql = "SELECT * FROM Tab1"; 13. 14. string connStr = WebConfigurationManager.ConnectionStrings["Employees"].ConnectionString; 15. 16. conn = new SqlConnection(connStr); 17. conn.Open(); 18. 19. da = new SqlDataAdapter(sql, conn); 20. 21. ds = new DataSet(); 22. da.Fill(ds, "Tab1"); 23. 24. return ds; 25. } 26. catch (Exception ex) 27. { 28. throw ex; 29. } 30. finally 31. { 32. if (conn != null) 33. conn.Close(); 34. if (da != null) 35. da.Dispose(); 36. } 37. } After he finish work he call this update web method. He can add, delete and edit rows in table in dataset. [WebMethod] public bool SecureUpdateDataSet(DataSet ds) { SqlConnection conn = null; SqlDataAdapter da = null; SqlCommand cmd = null; try { DataTable delRows = ds.Tables[0].GetChanges(DataRowState.Deleted); DataTable addRows = ds.Tables[0].GetChanges(DataRowState.Added); DataTable editRows = ds.Tables[0].GetChanges(DataRowState.Modified); string sql = "UPDATE * FROM Tab1"; string connStr = WebConfigurationManager.ConnectionStrings["Employees"].ConnectionString; conn = new SqlConnection(connStr); conn.Open(); cmd = new SqlCommand(sql, conn); da = new SqlDataAdapter(sql, conn); if (addRows != null) { da.Update(addRows); } if (delRows != null) { da.Update(delRows); } if (editRows != null) { da.Update(editRows); } return true; } catch (Exception ex) { throw ex; } finally { if (conn != null) conn.Close(); if (da != null) da.Dispose(); } } Code on client side 1. //on client side is dataset bind to datagridview 2. Dataset ds = proxy.GetSecureDataSet(""); 3. ds.AcceptChanges(); 4. 5. //edit dataset 6. 7. 8. //get changes 9. DataSet editDataset = ds.GetChanges(); 10. 11. //call update webmethod 12. proxy.SecureUpdateDataSet(editDataSet) But it finish with this error : System.Web.Services.Protocols.SoapException: Server was unable to process request. --- System.InvalidOperationException: Update requires a valid UpdateCommand when passed DataRow collection with modified rows. at WebService.Service.SecureUpdateDataSet(DataSet ds) in D:\Diploma.Work\WebService\Service1.asmx.cs:line 489 Problem is with SQL Commad, client can add, delete and insert row, how can write a corect SQL command.... any advice please? Thank you

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• Is Lazy Loading required for nHibernate?

  - by johnny

  It took me a long time but I finally got nHibernate's Hello World to work. It worked after I did "lazy loading." Honestly, I couldn't tell you why it all worked, but it did and now I am reading you don't need lazy loading. Is there a hello world that anyone has that is bare bones making nHibernate work? Do you have to have lazy loading? I ask because I would like to use nHibernate but I need to understand how things are working. Thank you. Do you know of a hello world that doesn't have so much overhead? Is it better to use lazy loading? EDIT: I am using asp.net 3.5. Web Application Project.

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• SDK for writing DVD's

  - by Matt Warren

  I need to add DVD writing functionality to an application I'm working on. However it needs to be able to write out files that are being grabbed "live" from a camera, over a long period of time. I can't wait until all the files are captured before I start writing them to the DVD, I need to write them out in chunks as I go along. I've looked at IMAPI v2, but the main problems seems to be that you need to point it to all the files you plan to write out to disk before you start the burning process. I know it has to concept of "sessions", which means you can write to the DVD in several parts, before you finally "close" it. But I was wondering if there were any other DVD writing SDK's that allow you to be constantly writing files to a DVD and in particular files that are only in memory. It would be more efficient if I didn't have to write the captured images out to hard before they are burned to DVD. The solution needs to work under .NET on Windows XP and vista

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• Ruby Socket Inheritance

  - by Jarsen

  I'm writing a Ruby class that extends TCPSocket. Assume it looks something like this: class FooSocket < TCPSocket def hello puts 'hello' end end I have a TCPServer listening for incoming connections server = TCPServer.new 1234 socket = server.accept When my server finally accepts a connection, it will return a TCPSocket. However, I want a FooSocket so that I can call socket.hello. How can I change TCPSocket into a FooSocket? I could duck-punch the methods and attributes I want directly onto the TCPSocket class, but I'm using it elsewhere and so I don't want to do that. Probably the easiest solution is to write a class that encapsulates a TCPSocket, and just pass the socket returned by accept as a param. However, I'm interested to know how to do it through inheritance—I've been trying to bend my mind around it but can't figure it out. Thanks in advance.

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• Detecting syllables in a word

  - by user50705

  I need to find a fairly efficient way to detect syllables in a word. E.g., invisible - in-vi-sib-le There are some syllabification rules that could be used: V CV VC CVC CCV CCCV CVCC *where V is a vowel and C is a consonant. e.g., pronunciation (5 Pro-nun-ci-a-tion; CV-CVC-CV-V-CVC) I've tried few methods, among which were using regex (which helps only if you want to count syllables) or hard coded rule definition (a brute force approach which proves to be very inefficient) and finally using a finite state automata (which did not result with anything useful). The purpose of my application is to create a dictionary of all syllables in a given language. This dictionary will later be used for spell checking applications (using Bayesian classifiers) and text to speech synthesis. I would appreciate if one could give me tips on an alternate way to solve this problem besides my previous approaches. I work in Java, but any tip in C/C++, C#, Python, Perl... would work for me.

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• Python and Gstreamer

  - by Seif Sallam

  hi, I'm creating a streaming application, using GStreamer with TCP pipeline, and i implemented start, pause, and stop. but the problem is, that i can't seek, i tried to change the playback value from the server side, then i tried on the client side, and Finally tried to change the value on both at the same time, but in all cases it doesn't work. and I even tried to pause the playback then continue but nothing happens. I'm having this problem with the seek and the volume. Any help please, I searched everywhere but i couldn't find anything that worked. this is the code that i use for seeking self.pipeline.seek_simple(gst.FORMAT_TIME, gst.SEEK_FLAG_FLUSH, time)

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• TDD and UML together

  - by uther-lightbringer

  Hello, I'm new to TDD approach so I'm wondering if anyone experienced wit this could enlighten me a little. I would like to get some leads how to use UML and TDD methodology together. I've been used to: Design with UML -- Generate skeleton classes (and then keep it synchronized) - Implement and finally Test. I must admit that testing part was the worst one, so I started to look for something else - TDD. So I have some general knowledge what is it about but before I proceed further, I am interested knowing how it goes together with software design especially UML. So when I first design/create test, how can UML fit in? Would it be possible to design classes first, from them create skeleton classes, from them generate Unit tests which would be "filled" before actual implementation of UML pregenerated classes, would this approach break whole TDD? Or is there any other way that would keep UML and TDD together? Thanks everyone for answer.

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• Linq Grouping by 2 keys as a one

  - by Evgeny

  Hello! I write a simple OLAP viewer for my web-site. Here are the classes (abstract example): Employee { ID; Name; Roles[]; //What Employee can do } Order { Price; Employee Manager; Employee Executive; //Maybe wrong english. The person which perform order } Employee can be Manager and Executive in the order at the same time. This means that Employee role is not fixed. I have to group orders by employees and finally get IGrouping with Employee key. So .GroupBy(el=new {el.Manager,el.Executive}) is not allowed. I considered some tricks with IEqualityComparable, but found no solution. If somrbody will help I'll be vary glad, thank you.

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• Getting help on MATLAB's com.mathworks internals

  - by Richie Cotton

  It is possible to access bits of MATLAB's internal java code to programmatically change MATLAB itself. For example, you can programmatically open a document in the editor using editorServices = com.mathworks.mlservices.MLEditorServices; editorServices.newDocument() %older versions of MATLAB seem to use new() You can see the method signatures (but not what they do) using viewmethods. viewmethods(com.mathworks.mlservices.MLEditorServices) I have a few related questions about using these Java methods. Firstly, is there any documentation on these things (either from the Mathworks or otherwise)? Secondly, how do you find out what methods are available? The ones I've come across appear to be contained in JAR files in matlabroot\java\jar, but I'm not sure what the best way to inspect a JAR file is. Thirdly, are there functions for inspecting the classes, other than viewmethods? Finally, are there any really useful methods that anyone has found?

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