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• NHibernate filters don't work with Session.Get

  - by Khash

  I'm trying to implement a Soft-deletable repository. Usually this can be easily done with a Delete Event listener. To filter out the deleted entities, I can add a Where attribute to my class mapping. However, I also need to implement two more methods in the repository for this entity: Restore and Purge. Restore will "undelete" entities and Purge will hard-delete them. This means I can't use Where attribute (since it block out soft-deleted entities to any access) I tried using filters instead. I can create a filter and enable or disable it within session to achieve the same result. But the problem is filters don't have any effect on Session.Get method (they only affect ICriteria based access). Any ideas as to how solve this problem? Thanks

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• HTML list wrapping problem

  - by Daniel

  I have a HTML list with this style: font-weight: bold; padding: 0px; margin: 0px; list-style-type: none; display: block; width:700px; font-size: 14px; white-space: pre-wrap; and the cells have this style: display: inline; and I have spacer cells between each cell with this style: padding-right: 20px; display: inline; My problem is that when the list is too long for its 700 pixels, it wraps. I want this, but I dont want the objects to be on two separate lines. I have tried the CSS white-space property, but nothing seems to work. Any ideas?

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• How can I perform a web query in C# similar to the Data > Import External Data > New Web Query in Mi

  - by TNT

  I need to pull data from a table on a website. I can easily do this in VBA using the Web Query, but I need to do this in C#. I'm just having some trouble figuring out how to properly convert the code. I got something close, but it's returning HTML with the data. I just want the data. Any help would be great. The block of code giving me issues is below: Private Function GetData(ByVal theURL As String, ByVal theRow As Integer, ByVal thePosition As Integer, ByVal theColumn As String, ByVal theTable As Integer) With ActiveSheet.QueryTables.Add(Connection:="URL;" + theURL, Destination:=Sheet2.Range(theColumn & theRow + 1)) .Name = "op?s=" + Mid(theURL, thePosition + 1) + "_1" .PreserveFormatting = True .AdjustColumnWidth = True .WebTables = theTable .Refresh BackgroundQuery:=False End With End Function

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• WCF Service method syncronous/async

  - by Rafal

  Hi I have a problem withi calling WCF Service methods vs Silverlight 3. ` private bool usr_OK = false; clientService.CheckUserMailAsync(this.mailTF.Text); if (usr_OK == true) { isValidationOK = true; } else { isValidationOK = false; MessageBox.Show("User already exists.", "User registered succes!", MessageBoxButton.OK); } ` CheckUserMail should change usr_OK parameter. However it runs in other thread and it does not change the usr_OK param before IF block begins. I've tried thread.join byt the application freezed and i do not know what to do else. Please help me...how can i wait for WCF method to return param usr_OK.

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• Blackberry Development, java.lang.outofmemoryerror

  - by Nikesh Yadav

  Hi Forum, I am new to Blackberry development (I am using Eclipse with Blackberry plug-in), I am trying to read a text file, which I placed in the "src" folder of my Blackberry project and this text file just contain a word "Test". when I run the program, I gets "UncaughtException: java.lang.outofmemoryerror". Here is the code I am using, where "speech.txt" is the file I am trying to read and is placed in the "src" folder - public class SpeechMain extends MainScreen { public SpeechMain() { try { Class myClass = this.getClass(); InputStream is = null; is = myClass.getResourceAsStream("speech.txt"); InputStreamReader isr = new InputStreamReader(is); char c; while ((c = (char)isr.read()) != -1) { add(new LabelField("" + c)); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); add(new LabelField(e.getMessage())); } } } Thanks in advance. Thanks, Nikesh

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• Why check if your popoverController is nil? Doesn't Obj-C ignore messages to nil?

  - by Rob Fonseca-Ensor

  Pretty much everyone that writes about the UISplitView on the iPad uses the following code structure to dismiss a popover: if (popoverController != nil) { [popoverController dismissPopoverAnimated:YES]; } I though Objective-C was happy to ignore messages that are passed to nil? In fact, in the File New Project New Split View Application template, there's an example of this shortcut in the same code block (DetailsViewController.m): - (void)setDetailItem:(id)newDetailItem { if (detailItem != newDetailItem) { [detailItem release]; //might be nil detailItem = [newDetailItem retain]; // Update the view. [self configureView]; } if (popoverController != nil) { [popoverController dismissPopoverAnimated:YES]; //was checked for nil } } Why is that second if necessary?

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• Are concurrency issues possible when using the WCF Service Behavoir attribute set to ConcurrencyMode

  - by Brandon Linton

  We have a WCF service that makes a good deal of transactional NHibernate calls. Occasionally we were seeing SQL timeouts, even though the calls were updating different rows and the tables were set to row level locking. After digging into the logs, it looks like different threads were entering the same point in the code (our transaction using block), and an update was hanging on commit. It didn't make sense, though, because we believed that the following service class attribute was forcing a unique execution thread per service call: [ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Multiple, InstanceContextMode = InstanceContextMode.PerCall)] We recently changed the concurrency mode to ConcurrencyMode.Single and haven't yet run into any issues, but the bug was very difficult to reproduce (if anyone has any thoughts on flushing a bug like that out, let me know!). Anyway, that all brings me to my question: shouldn't an InstanceContextMode of PerCall enforce thread-safety within the service, even if the ConcurrencyMode is set to multiple? How would it be possible for two calls to be serviced by the same service instance? Thanks!

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• Synchronisation construct inside pragma for

  - by Sayan Ghosh

  Hi, I have a program block like: for (iIndex1=0; iIndex1 < iSize; iIndex1++) { for (iIndex2=iIndex1+1; iIndex2 < iSize; iIndex2++) { iCount++; fDist =(*this)[iIndex1].distance( (*this)[iIndex2] ); m_oPDF.addPairDistance( fDist ); if ((bShowProgress) && (iCount % 1000000 == 0)) xyz_exception::ui()->progress( iCount, (size()-1)*((size()-1))/2 ); } } } } I have tried parallelising the inner and outer loop and by putting iCount in a critical region. What would be the best approach to parallelise this? If I wrap iCount with omp single or omp atomic then the code gives an error and I figured out that would be invalid inside omp for. I guess I am adding many extraneous stuffs to paralellise this. Need some advice... Thanks, Sayan

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• css pagination for GridView

  - by nCdy

  my css : /* for greed view */ .pagination { font-size: 80%; } .pagination a { text-decoration: none; color: #15B; } .pagination a, .pagination span { display: block; float: left; padding: 0.3em 0.5em; margin-right: 5px; margin-bottom: 5px; } .pagination .current { background: #26B; color: #fff; border: solid 1px #AAE; } .pagination .current.prev, .pagination .current.next{ color:#999; border-color:#999; background:#fff; } but .pagination .current doesn't appears on current page and I can's see the border on it. What am I doing wrong ?

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• How to implement blocking request-reply using Java concurrency primitives?

  - by Uri

  My system consists of a "proxy" class that receives "request" packets, marshals them and sends them over the network to a server, which unmarshals them, processes, and returns some "response packet". My "submit" method on the proxy side should block until a reply is received to the request (packets have ids for identification and referencing purposes) or until a timeout is reached. If I was building this in early versions of Java, I would likely implement in my proxy a collection of "pending messages ids", where I would submit a message, and wait() on the corresponding id (with a timeout). When a reply was received, the handling thread would notify() on the corresponding id. Is there a better way to achieve this using an existing library class, perhaps in java.util.concurrency? If I went with the solution described above, what is the correct way to deal with the potential race condition where a reply arrives before wait() is invoked?

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• CSS line wrapping

  - by Mic

  Given a block container <div> this is a very long string which contains a bunch of characters that I want to break at container edges. </div> are there any css properties I can set to force it to break when it reaches the container width, regardless of the contents of the string, for example a break like: this is a ve ry long stri ng which ... is pretty much what I want. Right now, it seems to always prefer to break at whitespace characters or other special characters (such as /).

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• How can I detect whether an image is a PNG or APNG format?

  - by perlit

  APNG is backwards compatible with PNG. I opened up an apng and png file in a hex editor and the first few bytes look identical. So if a user uploads either of these formats, how do I detect what the format really is? I've seen this done on some sites that block apng. I'm guessing the ImageMagick library makes this easy, but what if I were to do the detect without the use of an image processing library (for learning purposes)? Can I look for specific bytes that tell me if the file is apng? Solutions in any language is welcome.

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• rails, rest, render different action with responds to

  - by Sam

  Maybe my logic is not restful or know if this is how you would do it but this is what I am trying to do. I'm getting a category inside a category controller and then once I get that category I want to return to an index page in a different controller but keep that @category and the Category.busineses. Before rest I would have just done this: render :controller = "businesses" and it would have rendered the view of the index action in that controller. now in my respond_to block I have this format.html {redirect_to(business_path)} # index.html.erb format.xml { render :xml => @businesses } but of course with a render it looses the instance variable and starts with a new action. So what I want to do is render the action instead of redirecting to that action. is this possible?

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• Rectangular BackColor of selection in RichTextBox

  - by AgentConundrum

  Background: I'm going to start studying/coding at the local university's library. Since I'm not a student, I won't be able to utilize their wireless internet access. Since StackOverflow is such a great resource, I want to be able to take it with me, so I'm building a small desktop application to load/search/display the most recent data dumps. Problem: I want to display code blocks in the same sort of rectangular block as this site does, so I played with the RichTextBox control to try to create this effect. Unfortunately, the RichTextBox.SelectedBackColor property only colors the actual text, when what I want is a rectangle reaching to the outer limits of the selection. Example: This is what I am able to produce with the RichTextBox: This is what I would like to create: Questions: Is there any way to produce this effect using the RichTextBox? If not, are there any other controls I could use to create this effect?

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• MS Test : How do I enforce exception message with ExpectedException attribute

  - by CRice

  I thought these two tests should behave identically, in fact I have written the test in my project using MS Test only to find out now that it does not respect the expected message in the same way that nunit does. nunit (fails): [Test, ExpectedException(typeof(System.FormatException), ExpectedMessage = "blah")] public void Validate() { int.Parse("dfd"); } ms test (passes): [TestMethod, ExpectedException(typeof(System.FormatException), "blah")] public void Validate() { int.Parse("dfd"); } No matter what message I give the ms test, it will pass. Is there any way to get the ms test to fail if the message is not right? Can I even create my own exception attribute? I would rather not have to write a try catch block for every test where this occurs.

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• How to instantiate JQuery UI widget by string?

  - by limcheekin

  Hi there, Do you know how to instantiate JQuery UI widget by string? Let's illustrate it with some sample code. Given the html link element below: <a id="testLink" href="#">Test Link</a> Normally, we can make it into button using code below: $('#testLink').button(); What if I want to instantiate the button with string, for example: var widget='button'; $('#testLink').[widget](); Of course the code block above is not working (It is just for illustration purpose only), otherwise you will not see this question. Please advice. Thanks, Chee Kin

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• WCF Service method synchronous/async

  - by Rafal

  Hi I have a problem with calling WCF Service methods with Silverlight 3. private bool usr_OK = false; clientService.CheckUserMailAsync(this.mailTF.Text); if (usr_OK == true) { isValidationOK = true; } else { isValidationOK = false; MessageBox.Show("User already exists.", "User registered succes!", MessageBoxButton.OK); } CheckUserMail should change usr_OK parameter. However it runs in other thread and it does not change the usr_OK param before IF block begins. I've tried thread.join byt the application freezed and i do not know what to do else. Please help me...how can i wait for WCF method to return param usr_OK.

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• Is it okay to use try catch inside finally?

  - by Hiral Lakdavala

  Hi, I am using a buffered writer and my code, closes the writer in the finally block. My code is like this. ........... BufferedWriter theBufferedWriter = null; try{ theBufferedWriter =..... .... ...... ..... } catch (IOException anException) { .... } finally { try { theBufferedWriter.close(); } catch (IOException anException) { anException.printStackTrace(); } } I have to use the try catch inside the clean up code in finally as theBufferedWriter might also throw an IOException. I do not want to throw this exception to the calling methos. Is it a good practice to use a try catch in finally? If not what is the alternative? Please suggest. Regards, Hiral

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• How to prevent Debug.Assert(...) to show a modal dialog

  - by Martin

  I have a couple of libraries which use Debug.Assert(...). I think that the Debug.Assert(...) are fine and I still want them to execute, but I don't want them to block the execution of my application. Ideally, I would only like them to be logged somewhere. Given that I can't change the code of the libraries (and that I still want to compile in debug and run the assertion), how do I prevent Debug.Assert(...) to show a modal dialog? Thanks!

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• .NET Thank you/confirmation page best practise

  - by sooty

  Hi, whats the best practise for implementing a confirmation page in .Net? I've used response.redirect("Thankyou.aspx") a lot in the past I've also used something like this for hiding form controls and outputting a message: outResult.Attributes.Remove("style") outResult.Attributes.Add("style", "display:block;") outEntry.Attributes.Remove("style") outEntry.Attributes.Add("style", "display:none;") For the above you have to consider post backs that may occur if the user click refresh though. Does anybody have a better option? thanks!

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• How do you go from an abstract project description to actual code?

  - by Jason

  Maybe its because I've been coding around two semesters now, but the major stumbling block that I'm having at this point is converting the professor's project description and requirements to actual code. Since I'm currently in Algorithms 101, I basically do a bottom-up process, starting with a blank whiteboard and draw out the object and method interactions, then translate that into classes and code. But now the prof has tossed interfaces and abstract classes into the mix. Intellectually, I can recognize how they work, but am stubbing my toes figuring out how to use these new tools with the current project (simulating a web server). In my professors own words, mapping the abstract description to Java code is the real trick. So what steps are best used to go from English (or whatever your language is) to computer code? How do you decide where and when to create an interface, or use an abstract class?

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• Django admin output extra HTML in ModelSite

  - by VoteyDisciple

  Ultimately, I want to add an <iframe> to the display of a particular model on Django's admin page. Django is already rendering the form for this model correctly, but I want to add this <iframe> in addition to Django's form. The src attribute needs to involve the primary key for the currently-displayed record. I've learned how to properly override the change_form.html template through Django's documentation, and I can add markup to the right block, but I can't figure out how to access the primary key value. (No amount of determined Googling has helped at all.) Alternatively, is there a direct way to specify that I want to produce extra output in my ModelSite definition?

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• jQuery - iGoogle style interface

  - by samhamilton

  Hi all, I'm currently working on developing a customizable website layout using jQuery, so I can drag, drop, add and remove blocks of content... much like the iGoogle interface. I have my blocks dragging and dropping working with 3 columns of content My question is to do with adding and removing blocks If I use hide(), I can simply hide and show the blocks. If I use remove, I would have to append the list of blocks to load in a new block into a column. I'm not sure which is the best approach to take. I'd be grateful for any advice on best practise, i.e. to hide() or remove() and any other advice on building this kind of interface. Thank, Sam.

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• Transaction & Locks Problem

  - by jay

  with in do transaction, i defined a label and in this label i am accessing a table with exclusive-lock.and at the end of label i have done all the changes in that table. bt now i am with in transaction block. Now, i tried to access that same table in another session.then it show an error, Table used by another user. So is it possible that, can we release teh table with in transaction,so another user can access it. Exe Session1) DO TRANSACTION: loopb: repeat: -- --------------------- control is here right now. end. /repeat/ -- end /do transaction/ Session2) I tried to access same table,bt it show an error,that table locked by another user.

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• Transaction & Locks Problem

  - by jay

  with in do transaction, i defined a label and in this label i am accessing a table with exclusive-lock.and at the end of label i have done all the changes in that table. bt now i am with in transaction block. Now, i tried to access that same table in another session.then it show an error, Table used by another user. So is it possible that, can we release teh table with in transaction,so another user can access it. Exe Session1) DO TRANSACTION: loopb: repeat: -- --------------------- control is here right now. end. /repeat/ -- end /do transaction/ Session2) I tried to access same table,bt it show an error,that table locked by another user.

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