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• RegEx to match a pattern and exclude a part of the string

  - by rojanu

  Hi, I have got some strings to be matched via RegEx. We have a java application which reads the regex from a config file and takes two groups of strings, number of which are specified in the same config. E.g. CustomAction.523274ca945f.dialogLabel=Executing Custom Code... will be matched with (?m)^(?!#)\s*(\S*)\s*=\s*(\S*.*) What I need is to pick the first group "CustomAction.523274ca945f.dialogLabel" and exclude the random string in the middle so I end up with something like "CustomAction.dialogLabel" or "CustomAction..dialogLabel" well any other combination but the random string. Thanks

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• Unable to set mouse cursor JLayeredPane

  - by Ones3k2

  I'm running into a problem that I can't seem to figure out nor find the answer anywhere on the web. I've got a JLayeredPane and when it only has one child Panel I am able to correctly set the cursor using setCursor(). The cursor shows up and everything is fine. But when I add an additional JPanel into the JLayeredPane the cursor no longer shows up for example this works: m_layeredPane = new JLayeredPane(); m_layeredPane.setLayout(new WBLayoutManager()); m_layeredPane.add(m_mediaPanel, new Integer(0)); // m_layeredPane.add(m_whiteboardPanel, new Integer(1)); m_layeredPane.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR)); // WORKS but this doesn't: m_layeredPane = new JLayeredPane(); m_layeredPane.setLayout(new WBLayoutManager()); m_layeredPane.add(m_mediaPanel, new Integer(0)); m_layeredPane.add(m_whiteboardPanel, new Integer(1)); m_layeredPane.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR)); // FAILS Anyone know how i can get custom cursors working within a JLayeredPane

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• How to use Zend Cache with SimpleXML objects?

  - by Jeremy Hicks

  I'm trying to cache the user timeline of a Twitter feed using Zend_Service_Twitter which returns its results as a SimpleXML object. Unfortunately the regular serialize functions (which Zend Cache uses) don't play nice with SimpleXMl objects. I found this http://www.mail-archive.com/[email protected]/msg18133.html. So it looks like I'll need to create some kind of custom frontend for Zend Cache to be able to change the serialize function used. Anybody ever done this already or can point me where to look to start?

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• Parsing boolean from configuration section in web.config

  - by Bloopy

  I have a custom configuration section in my web.config. One of my classes is grabbing from this: <myConfigSection LabelVisible="" TitleVisible="true"/> I have things working for parsing if I have true or false, however if the attribute is blank I am getting errors. When the config section tries to map the class to the configuration section I get an error of "not a valid value for bool" on the 'LabelVisible' part. How can I parse "" as false in my myConfigSection class? I have tried this: [ConfigurationProperty("labelsVisible", DefaultValue = true, IsRequired = false)] public bool? LabelsVisible { get { return (bool?)this["labelsVisible"]; } But when I try and use what is returned like so: graph.Label.Visible = myConfigSection.LabelsVisible; I get an error of: 'Cannot implicitly convert type 'bool?' to 'bool'. An explicit conversion exists (are you missing a cast?) Thanks for any suggestions!

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• Xcode / Interface Builder - better workflow from designer to coder?

  - by tbarbe

  Were dealing with some pretty custom UI elements while building our OSX / Cocoa and iPhone / IPad apps. I was wondering if anyone has good recommendations or tricks for getting a better workflow between UI designers and coders while using Xcode / Interface Builder? It seems that many things require programmatic settings with UI editing in Cocoa... if you stray from the pre-built UI elements then you can't really easily drag-drop build a UI... instead we end up handing off a design doc ( photoshop/illustrator ) and then the poor developer has to deal with recreating this masterpiece in code or by using interface builder - usually a combination of both. This work flow is leading us to not so great results and we have to re-iterate around the UI elements to get them to work better. We love CSS and / or Flash designer to developer workflow where the UI could look exactly as it should and the hand off to developer was more seamless. Is there anyone out there who has some tricks - or insights into getting better workflow when using tools like Xcode / Interface Builder and doing Cocoa apps?

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• How to use a proprety/value table in MySQL

  - by David

  I inherited a mysql database that has a table with columns like this: object_id, property, value It holds data like this: 1,first_name,Jane 1,last_name,Doe 1,age,10 1,color,red 2,first_name,Mike 2,last_name,Smith 2,age,20 2,color,blue 3,first_name,John 3,last_name,Doe 3,age,20 3,color,red ... Basically what I want to do is treat this table as a regular table. How would I get the id numbers (or all properties) of a person who is age 20 sorted by last and than first name? So far I have: SELECT object_id FROM table WHERE property = 'age' AND value = '20' union SELECT object_id FROM table WHERE property = 'color' AND value = 'red' But I'm not sure how to go about ordering the data. Thanks

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• Another answer to the CAPTCHA problem?

  - by Xeoncross

  Most sites at least employ server access log checking and banning along with some kind of bot prevention measure like a CAPTCHA (those messed-up text images). The problem with CAPTCHAs is that they poss a threat to the user experience. Luckily they now come with user friendly features like refresh and audio versions. Anyway, like linux vs windows, it isn't worth the time of a spammer to customize and/or build a script to handle a custom CAPTCHA example that only pertains to one site. Therefore, I was wondering if there might be better ways to handle the whole CAPTCHA thing. In A Better CAPTCHA Peter Bromberg mentions that one way would be to convert the image to HTML and display it embedded in the page. On http://shiflett.org/ Chris simply asks users to type his name into an input. Examples like this are ways to simplifying the CAPTCHA experience while decreasing the value for spammers. Does anyone know of more good examples I could use or see any problem with the embedded image idea?

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• Bind Data after TCP receive.

  - by gtas

  I have this strange problem all day now. I dunno if you handled something similar. I used two different serializers and now i know its not this problem. Im sending some data over TCP Sockets. Serialize - Send - Deserialize, everything works ok, i can get my objects search through them, use they're properties! But, if e.g receive a BusinessObject[] and convert into List<BusinessObject>, then bind the list in a Control.DataSource = businessObjectList; BOOM! NotSupportedException. Tried it with 3 different controls. Same behaviour. My head is empty of ideas right now!! The Send TCP happens on Desktop Framework, Receive on Compact Framework. But i dont think this has to do with anything. I wish for an explanation on this!

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• Problem with lazy loading implementation

  - by Mehran

  Hi, I have implemented lazy loading in my program. it's done through a proxy class like: class Order { public virtual IList<Item> Items {get; set;} } class OrderProxy { public override IList<Item> Items { get { if (base.Items == null) Items = GetItems(base.OrderID); return base.Items; } set { base.Items = value; } } } the problem is that whenever i instantiate proxy class,without even touching the Items property, it tries to load Items! as you may know,i want to instantiate proxy class and return the instance to BLL instead of domain object itself. what's the problem? Does .NET CLR access(read) properties in a class, when it's instatiating the class? any other methods? Thanks

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• Why Is my json-object from AJAX not understood by javascript, even with 'json' dataType?

  - by pete

  My js code simply gets a json object from my server, but I think it should be automatically parsed and turned into an object with properties, yet it's not allowing access properly. $.ajax({ type: 'POST', url: '/misc/json-sample.js', data: {href: path}, // THIS IS THE POST DATA THAT IS PASSED IN TO THE DRUPAL MENU CALL TO GET THE MENU... dataType: 'json', success: function (datax) { if (datax.debug) { alert('Debug data: ' + datax.debug); } else { alert('No debug data: ' + datax.toSource() ) ; } The /misc/json-sample.js file is: [ { "path": "examplemodule/parent1/child1/grandchild1", "title": "First grandchild option", "children": false } ] (I have also been trying to return that object from drupal as follows, and the same results.) Drupal version of misc/json-sample.js: $items[] = array( 'path' = 'examplemodule/parent1/child1/grandchild1', 'title' = t('First grandchild option'), 'debug' = t('debug me!'), 'children' = FALSE ); print drupal_to_js($items); What happens (in FF, which has the toSource() capability) is the alert with 'No debug data: [ { "path": "examplemodule/parent1/child1/grandchild1", "title": "First grandchild option", "children": false } ] Thanks

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• Reports in ASP.net

  - by Raghu

  Hi, I developed one report, that contains centers, months, and total leads and total sales. Report is executed and working properly. Now the issue with this is i want the report like.... Center1 Center2 Center3.............. SaleDate TotalLeads Total Sales Jan Feb Mrach TotalLeads Total Sales Jan Feb Mrach 03/01/2010 2341 23 2 4 17 ..................................................... But I am Getting the report as Center1 Center2 Center3.............. SaleDate TotalLeads Total Sales Mrach TotalLeads Total Sales Mrach 03/01/2010 2341 23 17 ..................................................... then how to set the properties to it. Please help me, i stuck with this from the past three days.. this is very important and urgent... Please give me sugessionsss......

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• Dynamic context menus for a BlackBerry CLDC Application

  - by Jacob Tabak

  In my custom field in a BlackBerry CLDC Application, I want to display a specific context menu based on the current state of the field. My original idea was to do something like this: protected void makeContextMenu(ContextMenu contextMenu) { if (isPaused()) contextMenu.addItem(resumeMenuItem); else contextMenu.addItem(pauseMenuItem); } However, the state of the field doesn't seem to be affecting the items on the context menu. I'm assuming that the context menu only gets "made" once during the life of the field. Is there a way to do what I'm trying to do?

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• ItemsControl that loads items one by one asynchronously.

  - by Vinit Sankhe

  Hey Guys, I am creating a custom DataGrid by deriving the traditional tookit based WPF DataGrid. I want a functionality in the grid to load items one by one asynchronously, wherein as soon as ItemsSource is changed i.e. a new collection is Set to the ItemsSource property or the bound collection is Changed dues to items that rae added, moved or removed (wherein the notifications comes to the data grid when the underlying source implements INotifyCollectionChanged such as ObservableCollection). This is because even with virtualising stackpanel underneath the datagrid takes time to load (2-3 seconds delay) to load the data rows when it has several columns and some are template based. With above behavior that delay would "appear" to have reduced giving datagrid a feel that it has the data and is responsive enough to load it. How can I achieve it? Thx Vinit.

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• JSR-303 dependency injection and Hibernate

  - by Jam

  Spring 3.0.2, Hibernate 3.5.0, Hibernate-Validator 4.0.2.GA I am trying to inject Spring dependencies into a ConstraintValidator using: @PersistenceContext private EntityManager entityManager; I have configured the application context with: <bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean"/> Which, according to the Spring documentation, should allow “custom ConstraintValidators to benefit from dependency injection like any other Spring bean” Within the debugger I can see Spring calling getBean to create the ConstraintValidator. Later when flush triggers the preInsert, a different ConstraintValidator is created and called. The problem is the EntityManager is null within this new ConstraintValidator. I’ve tried injecting other dependencies within the ConstraintValidator and these are always null. Does anyone know if it is possible to inject dependencies into a ConstraintValidator?

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• Call an IOUSBDeviceInterface function on an obj-c object instead of a C structure

  - by b1onic

  Let's say I want to close an USB device. Here is a C structure representing the USB device: struct __USBDevice { uint16_t idProduct; io_service_t usbService; IOUSBDeviceInterface **deviceHandle; IOUSBInterfaceInterface **interfaceHandle; Boolean open; }; typedef struct __USBDevice *USBDeviceRef; Here is the code to close the device: // device is a USBDeviceRef structure // USBDeviceClose is a function member of IOUSBDeviceInterface C Pseudoclass (*device->deviceHandle)->USBDeviceClose(device->deviceHandle); Now imagine that the device properties are declared in an obj-c class @interface Device : NSObject { NSNumber idProduct io_service_t usbService; IOUSBDeviceInterface **deviceHandle; IOUSBInterfaceInterface **interfaceHandle; BOOL open; } @end How would I do to call USBDeviceClose() ?

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• Observing an NSMutableArray for insertion/removal

  - by Adam Ernst

  A class has a property (and instance var) of type NSMutableArray with synthesized accessors (via @property). If you observe this array using: [myObj addObserver:self forKeyPath:@"theArray" options:0 context:NULL]; And then insert an object in the array like this: [[myObj theArray] addObject:[NSString string]]; An observeValueForKeyPath... notification is not sent. However, the following does send the proper notification: [[myObj mutableArrayValueForKey:@"theArray"] addObject:[NSString string]]; This is because mutableArrayValueForKey returns a proxy object that takes care of notifying observers. But shouldn't the synthesized accessors automatically return such a proxy object? What's the proper way to work around this--should I write a custom accessor that just invokes [super mutableArrayValueForKey...]?

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• Fastest method for SQL Server inserts, updates, selects

  - by Ian

  I use SPs and this isn't an SP vs code-behind "Build your SQL command" question. I'm looking for a high-throughput method for a backend app that handles many small transactions. I use SQLDataReader for most of the returns since forward only works in most cases for me. I've seen it done many ways, and used most of them myself. Methods that define and accept the stored procedure parameters as parameters themselves and build using cmd.Parameters.Add (with or without specifying the DB value type and/or length) Assembling your SP params and their values into an array or hashtable, then passing to a more abstract method that parses the collection and then runs cmd.Parameters.Add Classes that represent tables, initializing the class upon need, setting the public properties that represent the table fields, and calling methods like Save, Load, etc I'm sure there are others I've seen but can't think of at the moment as well. I'm open to all suggestions.

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• How do I do automatic data serialization of data objects in Haskell

  - by Adam Gent

  One of the huge benefits in languages that have some sort of reflection/introspecition is that objects can be automatically constructed from a variety of sources. For example in Java I can use the same objects for persisting to a db (with Hibernate) serializing to XML (with JAXB) or serializing to JSON (json-lib). You can do the same in Ruby and Python also usually following some simple rules for properties or annotations for Java. Thus I don't need lots "Domain Transfer Objects". I can concentrate on the domain I am working in. It seems in very strict FP like Haskell and Ocaml this is not possible. Particularly Haskell. The only thing I have seen is doing some sort of preprocessing or meta-programming (ocaml). Is it just accepted that you have to do all the transformations from the bottom upwards? In other words you have to do lot of boring work to turn a data type in haskell into JSON/XML/DB Row object and back again into a data object.

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• NullReferenceException in EntityFramework, how come?

  - by Mickel

  Take a look at this query: var user = GetUser(userId); var sessionInvites = ctx.SessionInvites .Include("InvitingUser") .Include("InvitedUser") .Where(e => e.InvitedUser.UserId == user.UserId) .ToList(); var invites = sessionInvites; // Commenting out the two lines below, and it works as expected. foreach (var invite in sessionInvites) ctx.DeleteObject(invite); ctx.SaveChanges(); return invites; Now, everything here executes without any errors. The invites that exists for the user are being deleted and the invites are being returned with success. However, when I then try to navigate to either InvitingUser or InvitedUser on any of the returned invites, I get NullReferenceException. All other properties of the SessionIvites returned, works fine. How come? [EDIT] Now the weird thing is, if I comment out the lines with delete it works as expected. (Except that the entities will not get deleted :S)

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• jquery validation problems

  - by CoffeeCode

  to custom validate an input i wrote a script: function cardNumberCheck(value, element) { var res = false; $.get("/CaseHistories/ValidateCardNumber", { caseHistoryId: $('#CaseHistory_Id').val(), cardNumber: $('#CaseHistory_CardNumber').val() }, function(data) { res = data }); //alert(res) => works fine return true/false return res; } $.validator.addMethod("cardValidate", cardNumberCheck, "invalid"); if ($('#CaseHistory_CardNumber').is("form *")) { //<= check if elem is in a form $('#CaseHistory_CardNumber').rules("add", { required: true, cardValidate: true, messages: { required: "*", cardValidate: "invalid" } }); } EDIT: the required rule works fine, but my validation method doesn't dispalt the message. and the submit works even if the elements data havent passed the cardNumberCheck validation whats not right here?

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• Protect files from svn commit.

  - by chrsk

  Hey, imagine a plain webapp with a log4j.properties which is under version control. I can't add it to svn:ignore because its a mandatory file. If i make custom changes for development and i don't want to commit them, i have to watch out for accidently commits. For one file it's easy to handle, with 3 or more files it becomes creepy. Is there a way to disable these files temporary from svn commit? So its easiert to commit? I'm working with svn and subclipse.

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• Combining javascripts into a single file

  - by toomanyairmiles

  Having read up recently on yahoo's web optimisation tips and using YSlow I've implemented a few of their ideas on one of my sites http://www.gwynfryncottages.com you can see the file here http://www.gwynfryncottages.com/js/gw-custom.js. While this technique seems to work perfectly on most occasions, and really does speed up the site, I do notice a significantly higher number of errors where the javascripts don't load or don't load completely while I'm working on the site so three questions:- is combining scripts this way a good idea at all in terms of reliablity? is there any way to measure the number of errors? is there any way to 'pre-load' the javascript or ensure that the number of loading errors is reduced?

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• Delphi: How to diagnose sluggish UI?

  - by Ian Boyd

  i have a form, which you can pretend is laid out like Windows Explorer: panel on the left splitter client panel +------------+#+-----------------------+ | |#| | | |#| | | |#| | | |#| | | Left |#| Client | | |#| | | |#| | | |#| | | |#| | | |#| | +------------+#+-----------------------+ ^ | +----splitter The the left and client area panels are each rich with controls. The problem is that using the splitter is very sluggish. i would expect that a modern 2 GHz computer can re-display the form as fast as a human can push the mouse around. But that's definitely not the case, and it takes about 200-300 ms before the form is fully re-adjusted. The form has about 100 visual controls on it, no code, or custom controls. How do i go about tracing who's the cause of the sluggishness?

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• control panel date&time is considered while using "new date()" javascript function.

  - by Rupa

  Hi, I am getting a client date in javscript function using "new date()" object. But this object is considering the properties set for Date&Time control in the control panel of the system. For example, If I check the check box of Date&Time control of the system (control panel) "Automatically adjust clock for daylight saving changes", then I am getting the date(from javscript) according to the Daylight savings time and if I uncheck it, I am getting the date according to the standard time. What I need is to get the date from a Javscript function irrespective of the Date&Time control of the control panel. Thanks Rupa.

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• VS2010's "Public Property <PropertyName> As <DataType> vs. Public var

  - by Velika2

  In VS2008, I used to type Public Property <PropName> As <dataType> and hit the Enter key and the IDE editor would automatically expand it out to a full blown property block. Now, from what I understand, a new feature of 2010 is that the compiler automatically "expands" the short syntax above into the same IL code that you would get with the full property GET AND SET sub methods that were are accustomed to seeing before in the editor. But functionality, how the heck is this any different than just having a Public class level variable? If the only diff is what it compiles to and if otehrwise there is no functional difference, isn't the new way less efficient than the old since it involves more code than just having a class level memory variable? Public as I thought that if you weren't going to have code behind your properties that they were essentially the same. I guess the diffrenece is that they just added the keyword "Property" but functionality, their is no diff, eh?

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