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  • Programming tips for writing document editors?

    - by Tesserex
    I'm asking this because I'm in the process of writing two such editors for my Mega Man engine, one a tileset editor, and another a level editor. When I say document editor, I mean the superset application type for things like image editors and text editors. All of these share things like toolbars, menu options, and in the case of image editors, and my apps, tool panes. We all know there's tons of advice out there for interface design in these apps, but I'm wondering about programming advice. Specifically, I'm doubting my code designs with the following things: Many menu options toggle various behaviors. What's the proper way to reliably tie the checked state of the option with the status of the behavior? Sometimes it's more complicated, like options being disabled when there's no document loaded. More and more consensus seems to be against using MDI, but how should I control tool panes? For example, I can't figure out how to get the panels to minimize and maximize along with the main window, like Photoshop does. When tool panels are responsible for a particular part of the document, who actually owns that thing? The main window, or the panel class? How do you do communication between the tool panels and the main window? Currently mine is all event based but it seems like there could be a better way. This seems to be a common class of gui application, but I've never seen specific pointers on code design for them. Could you please offer whatever advice or experience you have for writing them?

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  • Writing a JMS Publisher without "public static void main"

    - by The Elite Gentleman
    Hi guys, Every example I've seen on the web, e.g. http://www.codeproject.com/KB/docview/jms_to_jms_bridge_activem.aspx, creates a publisher and subscriber with a public static void main method. I don't think that'll work for my web application. I'm learning JMS and I've setup Apache ActiveMQ to run on JBoss 5 and Tomcat 6 (with no glitches). I'm writing a messaging JMS service that needs to send email asynchronously. I've already written a JMS subscriber that receives the message (the class inherits MessageListener). My question is simple: How do I write a publisher that will so that my web applications can call it? Does it have to be published somewhere? My thought is to create a publisher with a no-attribute constructor (in there) and get the MessageQueue Factory, etc. from the JNDI pool (in the constructor). Is my idea correct? How do I subscribe my subscriber to the Queue Receiver? (So far, the subscriber has no constructor, and if I write a constructor, do I always subscribe myself to the Queue receiver?) Thanks for your help, sorry if my terminology is not up to scratch, there are too many java terminologies that I get lost sometimes (maybe a java GPS will do! :-) ) PS Is there a tutorial out there that explains how to write a "better" (better can mean anything, but in my case it's all about performance in high demand requests) JMS Publisher and Subscriber that I can run on Application Server such as JBoss or Glassfish? Don't forget that the JMS application will needs a "guarantee" uptime as many applications will use this.

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  • Ubiquity CmdUtils.setSelection won't replace HTML

    - by Josh Timmer
    I'm attempting to write a Ubiquity command that allows you to replace a selected link or URL pointing to an image with that image itself. However, the CmdUtils.setSelection() function (documented here) seems to do nothing if any html tags are present in the selection, making it useless for replacing any links. When selecting plain text, it functions exactly as intended, replacing the text with an <img src="text"/> tag. Is there something I'm missing, or will this function simply not allow me to replace html? If the latter is the case, is there a function or method that will allow me to do this? Any other advice is welcome as well! CmdUtils.CreateCommand({ name: "fetch-image", author: {name: "Josh Timmer"}, license: "GPL", description: "Replaces links or URLs pointing to images with the image itself", help: "Highlight text or a hyperlink and execute this command", takes: {"image URL": /.*/}, _getImgUrl: function(itemIq) { if (itemIq.html.indexOf("<a ",0) < 0) return itemIq.text; var refPos = itemIq.html.indexOf("href=\"",0); if (refPos < 0) return "Error, no URL found!"; var startPos = itemIq.html.indexOf("\"", refPos); var endPos = itemIq.html.indexOf("\"", startPos + 1); startPos += 1; var url = itemIq.html.substring(startPos, endPos); return url; }, preview: function(pblock, input) { pblock.innerHTML = "Image URL: " + this._getImgUrl(input) + "<br/><br/><img src='" + this._getImgUrl(input) + "'/>"; }, execute: function img_insert(input) { CmdUtils.setSelection("<img src='" + this._getImgUrl(input) + "'/>"); displayMessage("Executed: " + this._getImgUrl(input)); } });

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  • Is There a Time at which to ignore IDisposable.Dispose?

    - by Mystagogue
    Certainly we should call Dipose() on IDisposable objects as soon as we don't need them (which is often merely the scope of a "using" statement). If we don't take that precaution then bad things, from subtle to show-stopping, might happen. But what about "the last moment" before process termination? If your IDisposables have not been explicitly disposed by that point in time, isn't it true that it no longer matters? I ask because unmanaged resources, beneath the CLR, are represented by kernel objects - and the win32 process termination will free all unmanaged resources / kernel objects anyway. Said differently, no resources will remain "leaked" after the process terminates (regardless if Dispose() was called on lingering IDisposables). Can anyone think of a case where process termination would still leave a leaked resource, simply because Dispose() was not explicitly called on one or more IDisposables? Please do not misunderstand this question: I am not trying to justify ignoring IDisposables. The question is just technical-theoretical. EDIT: And what about mono running on Linux? Is process termination there just as "reliable" at cleaning up unmanaged "leaks?"

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  • Comparing two collections for equality

    - by Crossbrowser
    I would like to compare two collections (in C#), but I'm not sure of the best way to implement this efficiently. I've read the other thread about Enumerable.SequenceEqual, but it's not exactly what I'm looking for. In my case, two collections would be equal if they both contain the same items (no matter the order). Example: collection1 = {1, 2, 3, 4}; collection2 = {2, 4, 1, 3}; collection1 == collection2; // true What I usually do is to loop through each item of one collection and see if it exists in the other collection, then loop through each item of the other collection and see if it exists in the first collection. (I start by comparing the lengths). if (collection1.Count != collection2.Count) return false; // the collections are not equal foreach (Item item in collection1) { if (!collection2.Contains(item)) return false; // the collections are not equal } foreach (Item item in collection2) { if (!collection1.Contains(item)) return false; // the collections are not equal } return true; // the collections are equal However, this is not entirely correct, and it's probably not the most efficient way to do compare two collections for equality. An example I can think of that would be wrong is: collection1 = {1, 2, 3, 3, 4} collection2 = {1, 2, 2, 3, 4} Which would be equal with my implementation. Should I just count the number of times each item is found and make sure the counts are equal in both collections? The examples are in some sort of C# (let's call it pseudo-C#), but give your answer in whatever language you wish, it does not matter. Note: I used integers in the examples for simplicity, but I want to be able to use reference-type objects too (they do not behave correctly as keys because only the reference of the object is compared, not the content).

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  • Requiring library consumers reference additional assembly when using certain types

    - by Thomas G. Mayfield
    I have library code that uses ICSharpCode.SharpZipLib under the hood to make it easy to use ZIP files as data sources when running integration tests. As it stands, if I reference my library from another project, the other project will compile just fine, but when it accesses the code that uses SharpZipLib, I get an exception for it not finding the zip library: failed: System.IO.FileNotFoundException : Could not load file or assembly 'ICSharpCode.SharpZipLib, Version=0.85.5.452, Culture=neutral, PublicKeyToken=1b03e6acf1164f73' or one of its dependencies. The system cannot find the file specified. If the types in my library derived from a class in SharpZipLib, it'd generate a compile error CS0012. What other ways are there for triggering a CS0012, so that using code that requires SharpZipLib (but doesn't clearly indicate it) would cause consumer code to fail compilation? I've had similar problems in the past when I've used libraries like DeftTech.DuckTyping under the hood. I'd add my library code to a new project, start working, compile, run, and then suddenly hit an edge case that I'd used duck typing to get around and get a runtime error. What I'd most like is to have the same behavior as if I'd derived from a type in the 3rd-party library, so that a reference to my derived type generates a CS0012: The type 'type' is defined in an assembly that is not referenced. You must add a reference to assembly 'assembly'.

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  • JavaScript access parent window from popup windows

    - by user359472
    I am trying to code this for hours and still couldn't do it. It keep tell me "Permission Denied". Here is what I am trying to accomplish. This pretty hard to explain please follow the example below. For example. domain111.com and domain222.com. When I am on domain111.com i click on the popup link , it will pop-up the domain111.com/popup.html then it redirect me to domain222.com. On this domain222.com it will redirect to couple pages before it redirect back to domain111.com with the result. I want to send the result from domain111.com to domain111.com. The process is like below. Domain111-popup to--Domain111-redirect--Domain222-redirect xxx Domain222 pages then redirect to---Domain111---SEND to parent window-Domain11 Here is my code. File name 1.hml on domain111.com <script type="text/javascript"> function IamParent() { alert('I am the parent of this window') } function PopUP() { window.open("http://domain222.com/2.htm", 'ALpop').focus(); } </script> <body> <a href="#void(0);" onclick="PopUP();" >Click</a> </body> File name 2.html on domain222.com <head> <title></title> <meta http-equiv="refresh" content="1;url=http://domain111.com/3.htm?Result=Yes" /> </head> Filename 2.htm on domain111.com <script type="text/javascript"> parent.IamParent(); //execute the function from the same domain111.com/1.htm </script> Please don't suggest AJAX or web request because it will not work with this case. Thanks for reading.

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  • Bloated PDF created by TCPDF

    - by Yogi Yang 007
    In a web app developed in PHP we are generating Quotations and Invoices (which are very simple and of single page) using TCPDF lib. The lib is working just great but it seems to generate very large PDF files. For example in our case it is generating PDF files as large as 4 MB (+/- a few KB). How to reduce this bloating of PDF files generated by TCPDF? Here is code snippet that I am using ob_start(); include('quote_view_bag_pdf.php'); //This file is valid HTML file with PHP code to insert data from DB $quote = ob_get_contents(); //Capture the content of 'quote_view_bag_pdf.php' file and store in variable ob_end_clean(); //Code to generate PDF file for this Quote //This line is to fix a few errors in tcpdf $k_path_url=''; require_once('tcpdf/config/lang/eng.php'); require_once('tcpdf/tcpdf.php'); // create new PDF document $pdf = new TCPDF(); // remove default header/footer $pdf->setPrintHeader(false); $pdf->setPrintFooter(false); // add a page $pdf->AddPage(); // print html formated text $pdf->writeHtml($quote, true, 0, true, 0); //Insert Variables contents here. //Build Out File Name $pdf_out_file = "pdf/Quote_".$_POST['quote_id']."_.pdf"; //Close and output PDF document $pdf->Output($pdf_out_file, 'F'); $pdf->Output($pdf_out_file, 'I'); /////////////// enter code here Hope this code fragment will give some idea?

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  • std::vector iterator or index access speed question

    - by Simone Margaritelli
    Just a stupid question . I have a std::vector<SomeClass *> v; in my code and i need to access its elements very often in the program, looping them forward and backward . Which is the fastest access type between those two ? Iterator access std::vector<SomeClass *> v; std::vector<SomeClass *>::iterator i; std::vector<SomeClass *>::reverse_iterator j; // i loops forward, j loops backward for( i = v.begin(), j = v.rbegin(); i != v.end() && j != v.rend(); i++, j++ ){ // some operations on v items } Subscript access (by index) std::vector<SomeClass *> v; unsigned int i, j, size = v.size(); // i loops forward, j loops backward for( i = 0, j = size - 1; i < size && j >= 0; i++, j-- ){ // some operations on v items } And, does const_iterator offer a faster way to access vector elements in case i do not have to modify them? Thank you in advantage.

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  • Designing a fluent Javascript interface to abstract away the asynchronous nature of AJAX

    - by Anurag
    How would I design an API to hide the asynchronous nature of AJAX and HTTP requests, or basically delay it to provide a fluid interface. To show an example from Twitter's new Anywhere API: // get @ded's first 20 statuses, filter only the tweets that // mention photography, and render each into an HTML element T.User.find('ded').timeline().first(20).filter(filterer).each(function(status) { $('div#tweets').append('<p>' + status.text + '</p>'); }); function filterer(status) { return status.text.match(/photography/); } vs this (asynchronous nature of each call is clearly visible) T.User.find('ded', function(user) { user.timeline(function(statuses) { statuses.first(20).filter(filterer).each(function(status) { $('div#tweets').append('<p>' + status.text + '</p>'); }); }); }); It finds the user, gets their tweet timeline, filters only the first 20 tweets, applies a custom filter, and ultimately uses the callback function to process each tweet. I am guessing that a well designed API like this should work like a query builder (think ORMs) where each function call builds the query (HTTP URL in this case), until it hits a looping function such as each/map/etc., the HTTP call is made and the passed in function becomes the callback. An easy development route would be to make each AJAX call synchronous, but that's probably not the best solution. I am interested in figuring out a way to make it asynchronous, and still hide the asynchronous nature of AJAX.

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  • Python Twitter library: which one?

    - by Parand
    I realize this is a bit of a lazyweb question, but I wanted to see which python library for Twitter people have had good experiences with. I've used Python Twitter Tools and like its brevity and beauty of interface, but it doesn't seem to be one of the popular ones - it's not even listed on the Twitter Libraries page. There are, however, plenty of others listed: oauth-python-twitter2 by Konpaku Kogasa. Combines python-twitter and oauth-python-twitter to create an evolved OAuth Pokemon. python-twitter by DeWitt Clinton. This library provides a pure Python interface for the Twitter API. python-twyt by Andrew Price. BSD licensed Twitter API interface library and command line client. twitty-twister by Dustin Sallings. A Twisted interface to Twitter. twython by Ryan McGrath. REST and Search library inspired by python-twitter. Tweepy by Josh Roesslein. Supports OAuth, Search API, Streaming API. My requirements are fairly simple: Be able to use OAuth Be able to follow a user Be able to send a direct message Be able to post Streaming API would be nice Twisted one aside (I'm not using twisted in this case), have you used any of the others, and if so, do you recommend them? [Update] FWIW, I ended up going with Python Twitter Tools again. The new version supported OAuth nicely, and it's a very clever API, so I stuck to it.

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  • Accessing a class's containing namespace from within a module

    - by SFEley
    I'm working on a module that, among other things, will add some generic 'finder' type functionality to the class you mix it into. The problem: for reasons of convenience and aesthetics, I want to include some functionality outside the class, in the same scope as the class itself. For example: class User include MyMagicMixin end # Should automagically enable: User.name('Bob') # Returns first user named Bob Users.name('Bob') # Returns ALL users named Bob User(5) # Returns the user with an ID of 5 Users # Returns all users I can do the functionality within these methods, no problem. And case 1 (User.name('Bob')) is easy. Cases 2–4, however, require being able to create new classes and methods outside User. The Module.included method gives me access to the class, but not to its containing scope. There is no simple "parent" type method that I can see on Class nor Module. (For namespace, I mean, not superclass nor nested modules.) The best way I can think to do this is with some string parsing on the class's #name to break out its namespace, and then turn the string back into a constant. But that seems clumsy, and given that this is Ruby, I feel like there should be a more elegant way. Does anyone have ideas? Or am I just being too clever for my own good?

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  • MVC view engine that can render classic ASP?

    - by David Lively
    I'm about to start integrating ASP.NET MVC into an existing 200k+ line classic ASP application. Rewriting the existing code (which runs an entire business, not just the public-facing website) is not an option. The existing ASP 3.0 pages are quite nicely structured (given what was available when this model was put into place nearly 15 years ago), like so: <!--#include virtual="/_lib/user.asp"--> <!--#include virtual="/_lib/db.asp"--> <!--#include virtual="/_lib/stats.asp"--> <!-- #include virtual="/_template/topbar.asp"--> <!-- #include virtual="/_template/lftbar.asp"--> <h1>page name</h1> <p>some content goes here</p> <p>some content goes here</p> <p>.....</p> <h2>Today's Top Forum Posts</h2> <%=forum_top_posts(1)%> <!--#include virtual="/_template/footer.asp"--> ... or somesuch. Some pages will include function and sub definitions, but for the most part these exist in include files. I'm wondering how difficult it would be to write an MVC view engine that could render classic ASP, preferably using the existing ASP.DLL. In that case, I could replace <!--#include virtual="/_lib/user.asp"--> with <%= Html.RenderPartial("lib/user"); %> as I gradually move existing pages from ASP to ASP.NET. Since the existing formatting and library includes are used very extensively, they must be maintained. I'd like to avoid having to maintain two separate versions. I know the ideal way to go about this would be to simply start a new app and say to hell with the ASP code, however, that simply ain't gonna happen. Ideas?

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  • Why isn't UIScrollView always calling viewDidLoad on subviews?

    - by Rob S.
    I'm a bit confused on the behaviour of UIScrollView as it pertains to subview loading. In my app, I lazily load subviews into my scroller. Most of the time, -viewDidLoad is called on the subview immediately after adding it the UIScrollView. There is one scenario where it isn't being called. At the 'end' of my scroll view I have a "please wait" view. When it is fully scrolled on to the page, it fades out, I add the subview and -viewDidLoad is not called. In this case, when I remove the last subview and add another subview, I get nothing. I've tried [scrollView setNeedsDisplay] and [scrollView setNeedsLayout] to no avail. I've also sent the same messages to the view I just added - no dice. Does anyone have any insight here? Many people have many questions about -viewDidLoad and I haven't been able to find one related to direct subviews inside of a scrollview. Or I have and I haven't realized it :) Thanks in advance! Rob

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  • Lightweight development web server with support for PHP v2

    - by David
    In line with this question: http://stackoverflow.com/questions/171655/lightweight-web-app-server-for-php The above question has been asked numerous times and answered exactly the same in all the cases I've found using google. My question is similar to a degree but with a different desired goal: On demand development instances. I have come up with a somewhat questionable solution to host arbitrary directories in my user account for the purpose of development testing. I am not interested in custom vhosts but looking to emulate the behaviour I get when using paster or mongrel for Python & Ruby respectively. Ubuntu 9.10 TOXIC@~/ APACHE_RUN_USER=$USER APACHE_RUN_GROUP=www-data apache2 -d ~/Desktop/ -c "Listen 2990" Is there a better solution, could I do something similar with nginix or lighttpd? Note: The above won't work correctly for stock environments without a copied & altered httpd.conf. Update: The ideal goal is to mimic Paster, Webbrick, and Mongrel for rapid local development hosting. For those light weight servers, it takes less then a minute to get a working instance running ( not factoring any DB support ). Apache2 vhost is great but I've been using Apache2 for over ten years and it would be some sort of abomination hack to setup a new entry in /etc/hosts unless you have your own DNS, in which case a wildcard subdomain setup would probably work great. EXCEPT one more problem, it's pretty easy for me to know what is being hosted ( ex. by paster or mongeral ) just doing a sudo netstat -tulpn while there would be a good possibility of confusion in figure out which vhost is what.

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  • IUsable: controlling resources in a better way than IDisposable

    - by Ilya Ryzhenkov
    I wish we have "Usable" pattern in C#, when code block of using construct would be passed to a function as delegate: class Usable : IUsable { public void Use(Action action) // implements IUsable { // acquire resources action(); // release resources } } and in user code: using (new Usable()) { // this code block is converted to delegate and passed to Use method above } Pros: Controlled execution, exceptions The fact of using "Usable" is visible in call stack Cons: Cost of delegate Do you think it is feasible and useful, and if it doesn't have any problems from the language point of view? Are there any pitfalls you can see? EDIT: David Schmitt proposed the following using(new Usable(delegate() { // actions here }) {} It can work in the sample scenario like that, but usually you have resource already allocated and want it to look like this: using (Repository.GlobalResource) { // actions here } Where GlobalResource (yes, I know global resources are bad) implements IUsable. You can rewrite is as short as Repository.GlobalResource.Use(() => { // actions here }); But it looks a little bit weird (and more weird if you implement interface explicitly), and this is so often case in various flavours, that I thought it deserve to be new syntactic sugar in a language.

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  • WPF ValidationRule Validate when the control is loaded

    - by PaN1C_Showt1Me
    Hi ! I have a control with this validation <MyPicker.SelectedItem> <Binding Path="Person.Value" Mode="TwoWay" UpdateSourceTrigger="PropertyChanged" NotifyOnValidationError="True"> <Binding.ValidationRules> <rules:MyValidationRule ValidationType="notnull"/> </Binding.ValidationRules> </Binding> </MyPicker.SelectedItem> This is the Validation Class: class MyValidationRule : ValidationRule { private string _validationType; public string ValidationType { get { return _validationType; } set { _validationType = value; } } public override ValidationResult Validate(object value, CultureInfo cultureInfo) { ValidationResult trueResult = new ValidationResult(true, null); switch (_validationType.ToLower()) { case "notnull": return value == null ? new ValidationResult(false, "EMPTY FIELD") : trueResult; default: return trueResult; } } } Question: When the property is changed, then the Validate( ) method is called which is correct. But to call this method at the very beginning when the MyControl is created? I need to prove immediate after initialize if the there's a null value in the control (and display a validation error)

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  • Log4net Logging Problem : Very simple file appender logging not working

    - by contactmatt
    Here's my web.config information <configSections> <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/> </configSections> <log4net> <root> <level value="ALL" /> </root> <appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender"> <file value="c:\temp\log-file.txt" /> <appendToFile value="true" /> <rollingStyle value="Size" /> <maxSizeRollBackups value="10" /> <maximumFileSize value="1MB" /> <staticLogFileName value="true" /> <layout type="log4net.Layout.SimpleLayout" /> </appender> </log4net> ... Here's the code that initalizes the logger protected void SendMessage() { log4net.Config.XmlConfigurator.Configure(); ILog log = LogManager.GetLogger(typeof(Contact)); ... log.Info("here we go!"); log.Debug("debug afasf"); ... } it doesn't work, no matter what I seem to do. I am referencing the 'log4net.dll' correctly, and by debugging the application i can see that the log object is getting initiated properly. This is a asp.net 3.5 framework web project. Any ideas/suggestions? I thought originally this error may be due to a file write permission constraint, but that doesn't seem to be the case (or so I think).

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  • Can't catch KEY_VALUE_BASIC_INFORMATION.Name in CmRegisterCallback

    - by alex
    I want to hide in registry name of key value. I write driver, that using CmRegisterCallback. But I can't catch name of key value that I need. When I DbgPrint PKEY_VALUE_BASIC_INFORMATION-Name I get only symbols [ , u . Where is my mistake? Can anybody help me?My RegistryCallback source: NTSTATUS RegistryCallback(PVOID CallbackContext, PVOID Argument1, PVOID Argument2) { PDEVICE_CONTEXT pContext = (PDEVICE_CONTEXT) CallbackContext; REG_NOTIFY_CLASS Action = (REG_NOTIFY_CLASS) Argument1; UNICODE_STRING regKeyNameValueToHide = {0}; try { switch (Action) { case RegNtEnumerateValueKey: { PREG_ENUMERATE_VALUE_KEY_INFORMATION pInfo = (PREG_ENUMERATE_VALUE_KEY_INFORMATION) Argument2; //DbgPrint(pInfo->ValueName->Buffer); RtlInitUnicodeString(&regKeyNameValueToHide,L"alex-56328943333"); if(pInfo->KeyValueInformationClass == KeyValueBasicInformation) { PKEY_VALUE_BASIC_INFORMATION pKeyValueBasicInfirmation = (PKEY_VALUE_BASIC_INFORMATION) pInfo->KeyValueInformation; UNICODE_STRING regKeyNameValue = {0}; RtlInitUnicodeString(&regKeyNameValue,pKeyValueBasicInfirmation->Name); if (RtlEqualUnicodeString(&regKeyNameValue, &regKeyNameValueToHide, 1)) { return STATUS_CALLBACK_BYPASS; } } else if(pInfo->KeyValueInformationClass == KeyValueFullInformation) { PKEY_VALUE_FULL_INFORMATION pKeyValueFullInfirmation = (PKEY_VALUE_FULL_INFORMATION) pInfo->KeyValueInformation; UNICODE_STRING regKeyNameValue = {0}; RtlInitUnicodeString(&regKeyNameValue,pKeyValueFullInfirmation->Name); if (RtlEqualUnicodeString(&regKeyNameValue, &regKeyNameValueToHide, 1)) { return STATUS_CALLBACK_BYPASS; } } break; } default: { return STATUS_SUCCESS break; } } } except (EXCEPTION_EXECUTE_HANDLER) { DbgPrint("Exception in RegistryCallback!!!"); } return STATUS_SUCCESS; }

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  • Delphi Mock Wizard

    - by Todd
    Let me preface this by saying I'm fairly new to Unit Testing, Mocks, Stubs, Etc... I've installed Delphi-Mock-Wizard. When I select a unit and "Generate Mock", a new unit is created but it's very basic and not anything what I understand Mocks to be. unit Unit1; (** WARNING - AUTO-GENERATED MOCK! Change this unit if you want to, but be aware that any changes you make will be lost if you regenerate the mock object (for instance, if the interface changes). My advice is to create a descendent class of your auto-generated mock - in a different unit - and override things there. That way you get to keep them. Also, the auto-generate code is not yet smart enough to generate stubs for inherited interfaces. In that case, change your mock declaration to inherit from a mock implementation that implements the missing interface. This, unfortunately, is a violation of the directive above. I'm working on it. You may also need to manually change the unit name, above. Another thing I am working on. **) interface uses PascalMock, TestInterfaces; type IThingy = interface; implementation end. Looking at the source there seems to be quite a bit commented out. I'm wondering, has anyone gotten this to work? My IDE is D2010. Thanks.

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  • Client unable to authenticate when connecting to WCF service

    - by davecoulter
    I have a WCF service hosted in a Windows service. The application is an intranet app, and I have programmatically set the bindings on both the service and the client as: NetTcpBinding aBinding = new NetTcpBinding(SecurityMode.Transport); aBinding.Security.Transport.ClientCredentialType = TcpClientCredentialType.Windows; aBinding.Security.Transport.ProtectionLevel = System.Net.Security.ProtectionLevel.EncryptAndSign; Both the service and client have endpoints configured with SPNs: EndpointAddress = new EndpointAddress(uri, EndpointIdentity.CreateSpnIdentity("Service1")); As far as I know, I have setup the bindings correctly-- and I am usually able to connect to the service just fine. I did however run into a case where on a server running Windows Server 2003 R2, x64, SP2 I get the following exception immediately when the client tries to connect: INNEREXCEPTION -- Exception Message: InvalidCredentialException: Either the target name is incorrect or the server has rejected the client credentials. Stack Trace: at System.Net.Security.NegoState.ProcessAuthentication(LazyAsyncResult lazyResult) at System.Net.Security.NegotiateStream.AuthenticateAsClient(NetworkCredential credential, String targetName, ProtectionLevel requiredProtectionLevel, TokenImpersonationLevel allowedImpersonationLevel) at System.ServiceModel.Channels.WindowsStreamSecurityUpgradeProvider.WindowsStreamSecurityUpgradeInitiator.OnInitiateUpgrade(Stream stream, SecurityMessageProperty& remoteSecurity) I get the exception when I try to connect to the service from another machine in the domain, but if I connect to the service on the same machine running the service it works fine. The hosting service itself is running as a domain user account-- but I have tried running the service as a Local System and Network Service to no avail. I have checked the Local Security Policies for the server and didn't see anything amiss (i.e. 'Access this computer from the network' includes 'Everyone'). Anyone have an idea of what could resolve this? I am wondering if I need to do something in Active Directory with respect to the service's SPN? I have read some about using setspn.exe to register or refresh SPNs, but I haven't needed to do this before. Why would this be working with other configurations but not the one above?

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  • Considerations when architecting an extensible application using MEF

    - by Dan Bryant
    I've begun experimenting with dependency injection (in particular, MEF) for one of my projects, which has a number of different extensibility points. I'm starting to get a feel for what I can do with MEF, but I'd like to hear from others who have more experience with the technology. A few specific cases: My main use case at the moment is exposing various singleton-like services that my extensions make use of. My Framework assembly exposes service interfaces and my Engine assembly contains concrete implementations. This works well, but I may not want to allow all of my extensions to have access to all of my services. Is there a good way within MEF to limit which particular imports I allow a newly instantiated extension to resolve? This particular application has extension objects that I repeatedly instantiate. I can import multiple types of Controllers and Machines, which are instantiated in different combinations for a Project. I couldn't find a good way to do this with MEF, so I'm doing my own type discovery and instantiation. Is there a good way to do this within MEF or other DI frameworks? I welcome input on any other things to watch out for or surprising capabilities you've discovered that have changed the way you architect.

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  • How can I find out what is stopping my object from disposing properly?

    - by SLC
    I have a rather large and complex game in C#, and in it are various monsters. The monsters are created in the game by a MonsterCreator, and each monster has various plugins that are loaded from external DLLs. When my monsters die, they call a method in the MonsterCreator, and the MonsterCreator removes them from the game map, removes them from its own internal list of monsters, and then finally calls the Dispose() method on the monster itself. The dispose method calls the dispose method of each plugin, then clears up any of its own code. This seems to work fine, with lots of monsters, but somewhere there is a bug that crops up after a while, where a monster dies, but it has already been removed - it seems the callback telling the MonsterCreator is being called over and over, when the monster should have been removed on the first call. The likely candidate is that some of the plugins for the monster register themselves with an Event that pulses them every X number of seconds so they can perform logic. Stepping through I can see that they are unregistering with the Event when they die, but something is getting through still and I don't know what it is. Do you have any advice for debugging the problem? I can't post code really because it's split across a ton of libraries and plugin dlls, so it's more a case of figuring out the best way to debug it. I threw an exception in code when the monster died callback method is thrown and the monster cannot be found on the map to be removed, so I have the misbehaviing Monster, is there a way I can see what is still linked to it?

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  • Positioning / Scrolling problem with Flex popup.

    - by user284163
    Hi all, I'm trying to work out a specific problem I'm having with positioning in Flex using the PopUpManager. Basically I'm wanting to create a popup which will scroll with the parent container - this is necessary because the parent container is large and if the user's browser window isn't large enough (this will be the case the majority of the time) - they will have to use the scrollbar of the container to scroll down. The problem is that the popup is positioned relative to another component, and it needs to stay by that component. <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"> <mx:Script> <![CDATA[ import mx.core.UITextField; import mx.containers.TitleWindow; import mx.managers.PopUpManager; private function clickeroo(event:MouseEvent):void { var popup:TitleWindow = new TitleWindow(); popup.width = 250; popup.height = 300; popup.title = "Example"; var tf:UITextField = new UITextField(); tf.wordWrap = true; tf.width = popup.width - 30; tf.text = "This window stays put and doesn't scroll when the hbox is scrolled (even with using the hbox as parent in the addPopUp method), I need the popup to be local to the HBox."; popup.addChild(tf); PopUpManager.addPopUp(popup, hbox, false); PopUpManager.centerPopUp(popup); } ]]> </mx:Script> <mx:HBox width="100%" height="2000" id="hbox"> <mx:Button label="Click Me" click="clickeroo(event)"/> </mx:HBox> </mx:Application> Could anyone give me any pointers in the right direction? Thanks.

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  • PHP header redirection does nor reload <iframe> in IE

    - by Marco Demaio
    When displaying data from DB usually I'm in this situation I'm in page A.php that shows data from DB, user performs some action (like edit/delete etc) and page B.php is loaded to perform the action, once page B performed the action, it redirects browser to page A, page A is auto reloaded during step (3) therefor it shows an updated situation of the data In order to make page B to redirect to page A i use a simple PHP header("Location: " . "A.php", TRUE, 302); This works well in all situations, except when pages A.php is displaied into an <iframe>: in such a case it does not reload (step 4 does not get done). This seems to happen only in IE7 (don't know about IE8), it works perfectly on FF/Safari. And only when using an <iframe>, if page A.php is not in <iframe> it gest refreshed also in IE7. In order to solve this I simply added a couple of headers in page A.php to set it to not be cached: header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1 header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past But I was curious if you migt have exeperienced the same issue too in the past, and if you good give me some advises about this. Thanks!

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