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  • upgrading to worpdress 3.5 erased all posts and pages, wiped database

    - by James
    So I have upgraded to wordpress 3.5 and that seemed to have erased all posts and custom post types, media images, sliders etc' I have made a backup using both pressbackup and backupbuddy but when I try to restore the database (or everything). when it is done, if I look at the front end, everything is back and looks great but then when I go to the back end it says the database needs to be upgraded and doesn't let me bypass that. if i click ok it prompts the following message and after that everything is wiped again: WordPress database error: [Table 'db446353270.wp_categories' doesn't exist] SELECT * FROM wp_categories ORDER BY cat_ID WordPress database error: [Table 'db446353270.wp_post2cat' doesn't exist] SELECT post_id, category_id FROM wp_post2cat GROUP BY post_id, category_id WordPress database error: [Table 'db446353270.wp_linkcategories' doesn't exist] SELECT cat_id, cat_name FROM wp_linkcategories WordPress database error: [Unknown column 'link_category' in 'field list'] SELECT link_id, link_category FROM wp_links please advise. Thanks

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  • C# to Javascript: Custom Event Delegation?

    - by James Simpson
    I'm working on a project in Unity3D with Javascript, and I'm trying to implement the SmartFoxServer API (http://smartfoxserver.com) in Javascript instead of their example C# code. I've gotten most of it converted correctly, but I am still getting an error at runtime with the following line involving delegation to a C# file that is in the API (SFSEvent.cs). C# original: SFSEvent.onConnection += HandleConnection; Javascript (or whatever I've turned it into): SFSEvent.onConnection = Delegate.Combine(HandleConnection); Error: InvalidCastException: Cannot cast from source type to destination type.

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  • How do I DRY up my CouchDB views?

    - by James A. Rosen
    What can I do to share code among views in CouchDB? Example 1 -- utility methods Jesse Hallett has some good utility methods, including function dot(attr) { return function(obj) { return obj[attr]; } } Array.prototype.map = function(func) { var i, r = [], for (i = 0; i < this.length; i += 1) { r[i] = func(this[i]); } return r; }; ... Where can I put this code so every view can access it? Example 2 -- constants Similarly for constants I use in my application. Where do I put MyApp = { A_CONSTANT = "..."; ANOTHER_CONSTANT = "..."; }; Example 3 -- filter of a filter: What if I want a one view that filters by "is this a rich person?": function(doc) { if (doc.type == 'person' && doc.net_worth > 1000000) { emit(doc.id, doc); } } and another that indexes by last name: function(doc) { if (doc.last_name) { emit(doc.last_name, doc); } } How can I combine them into a "rich people by last name" view? I sort of want the equivalent of the Ruby my_array.select { |x| x.person? }.select { |x| x.net_worth > 1,000,000 }.map { |x| [x.last_name, x] } How can I be DRYer?

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  • Easiest way to retrofit retry logic on LINQ to SQL migration to SQL Azure

    - by Pat James
    I have a couple of existing ASP .NET web forms and MVC applications that currently use LINQ to SQL with a SQL Server 2008 Express database on a Windows VPS: one VPS for both IIS and SQL. I am starting to outgrow the VPS's ability to effectively host both SQL and IIS and am getting ready to split them up. I am considering migrating the database to SQL Azure and keeping IIS on the VPS. After doing initial research it sounds like implementing retry logic in the data access layer is a must-do when adopting SQL Azure. I suspect this is even more critical to implement in my situation where IIS will be on a VPS outside of the Azure infrastructure. I am looking for pointers on how to do this with the least effort and impact on my existing code base. Is there a good retry pattern that can be applied once at the LINQ to SQL data access layer, as opposed to having to wrap all of my LINQ to SQL operations in try/catch/wait/retry logic?

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  • Saving images only available when logged in

    - by James
    Hi, I've been having some trouble getting images to download when logged into a website that requires you to be logged in. The images can only be viewed when you are logged in to the site, but you cannot seem to view them directly in the browser if you copy its location into a tab/new window (it redirects to an error page - so I guess the containing folder has be .htaccess-ed). Anyway, the code I have below allows me to log in and grab the HTML content, which works well - but I cannot grab the images ... this is where I need help! <? // curl.php class Curl { public $cookieJar = ""; public function __construct($cookieJarFile = 'cookies.txt') { $this->cookieJar = $cookieJarFile; } function setup() { $header = array(); $header[0] = "Accept: text/xml,application/xml,application/xhtml+xml,"; $header[0] .= "text/html;q=0.9,text/plain;q=0.8,image/gif;q=0.8,image/x-bitmap;q=0.8,image/jpeg;q=0.8,image/png,*/*;q=0.5"; $header[] = "Cache-Control: max-age=0"; $header[] = "Connection: keep-alive"; $header[] = "Keep-Alive: 300"; $header[] = "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7"; $header[] = "Accept-Language: en-us,en;q=0.5"; $header[] = "Pragma: "; // browsers keep this blank. curl_setopt($this->curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.8.1.7) Gecko/20070914 Firefox/2.0.0.7'); curl_setopt($this->curl, CURLOPT_HTTPHEADER, $header); curl_setopt($this->curl, CURLOPT_COOKIEJAR, $this->cookieJar); curl_setopt($this->curl, CURLOPT_COOKIEFILE, $this->cookieJar); curl_setopt($this->curl, CURLOPT_AUTOREFERER, true); curl_setopt($this->curl, CURLOPT_FOLLOWLOCATION, true); curl_setopt($this->curl, CURLOPT_RETURNTRANSFER, true); } function get($url) { $this->curl = curl_init($url); $this->setup(); return $this->request(); } function getAll($reg, $str) { preg_match_all($reg, $str, $matches); return $matches[1]; } function postForm($url, $fields, $referer = '') { $this->curl = curl_init($url); $this->setup(); curl_setopt($this->curl, CURLOPT_URL, $url); curl_setopt($this->curl, CURLOPT_POST, 1); curl_setopt($this->curl, CURLOPT_REFERER, $referer); curl_setopt($this->curl, CURLOPT_POSTFIELDS, $fields); return $this->request(); } function getInfo($info) { $info = ($info == 'lasturl') ? curl_getinfo($this->curl, CURLINFO_EFFECTIVE_URL) : curl_getinfo($this->curl, $info); return $info; } function request() { return curl_exec($this->curl); } } ?> And below is the page that uses it. <? // data.php include('curl.php'); $curl = new Curl(); $url = "http://domain.com/login.php"; $newURL = "http://domain.com/go_here.php"; $username = "user"; $password = "pass"; $fields = "user=$username&pass=$password"; // Calling URL $referer = "http://domain.com/refering_page.php"; $html = $curl->postForm($url, $fields, $referer); $html = $curl->get($newURL); echo $html; ?> I've tried putting the direct URL for the image into $newURL but that doesn't get the image - it simply returns an error saying since that folder is not available to view directly. I've tried varying the above in different ways, but I haven't been successful in getting an image, though I have managed to get a screen through basically saying error 405 and/or 406 (but not the image I want). Any help would be great!

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  • wcf callback exception after updating to .net 4.0

    - by James
    I have a wcf service that uses callbacks with DualHttpBindings. The service pushes back a datatable of search results the client (for a long running search) as it finds them. This worked fine in .Net 3.5. Since I updated to .Net 4.0, it bombs out with a System.Runtime.FatalException that actually kills the IIS worker process. I have no idea how to even go about starting to fix this. Any recommendations appreciated. The info from the resulting event log is pasted below. An unhandled exception occurred and the process was terminated. Application ID: /LM/W3SVC/2/ROOT/CP Process ID: 5284 Exception: System.Runtime.FatalException Message: Object reference not set to an instance of an object. StackTrace: at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31(MessageRpc& rpc) at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet) at System.ServiceModel.Dispatcher.ChannelHandler.DispatchAndReleasePump(RequestContext request, Boolean cleanThread, OperationContext currentOperationContext) at System.ServiceModel.Dispatcher.ChannelHandler.HandleRequest(RequestContext request, OperationContext currentOperationContext) at System.ServiceModel.Dispatcher.ChannelHandler.AsyncMessagePump(IAsyncResult result) at System.Runtime.Fx.AsyncThunk.UnhandledExceptionFrame(IAsyncResult result) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously) at System.Runtime.InputQueue1.AsyncQueueReader.Set(Item item) at System.Runtime.InputQueue1.Dispatch() at System.ServiceModel.Channels.ReliableDuplexSessionChannel.ProcessDuplexMessage(WsrmMessageInfo info) at System.ServiceModel.Channels.ReliableDuplexSessionChannel.HandleReceiveComplete(IAsyncResult result) at System.ServiceModel.Channels.ReliableDuplexSessionChannel.OnReceiveCompletedStatic(IAsyncResult result) at System.Runtime.Fx.AsyncThunk.UnhandledExceptionFrame(IAsyncResult result) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously) at System.ServiceModel.Channels.ReliableChannelBinder1.InputAsyncResult1.OnInputComplete(IAsyncResult result) at System.Runtime.Fx.AsyncThunk.UnhandledExceptionFrame(IAsyncResult result) at System.Runtime.AsyncResult.Complete(Boolean completedSynchronously) at System.Runtime.InputQueue1.AsyncQueueReader.Set(Item item) at System.Runtime.InputQueue1.Dispatch() at System.Runtime.IOThreadScheduler.ScheduledOverlapped.IOCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped) at System.Runtime.Fx.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped) at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP) InnerException: * System.NullReferenceException* Message: Object reference not set to an instance of an object. StackTrace: at System.Web.HttpApplication.ThreadContext.Enter(Boolean setImpersonationContext) at System.Web.HttpApplication.OnThreadEnterPrivate(Boolean setImpersonationContext) at System.Web.AspNetSynchronizationContext.CallCallbackPossiblyUnderLock(SendOrPostCallback callback, Object state) at System.Web.AspNetSynchronizationContext.CallCallback(SendOrPostCallback callback, Object state) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc& rpc)

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  • subfig package in latex

    - by Tim
    Hi, When I am using subfig package in latex, it gives some errors: Package subfig Warning: Your document class has a bad definition of \endfigure, most likely \let\endfigure=\end@float which has now been changed to \def\endfigure{\end@float} because otherwise subsequent changes to \end@float (like done by several packages changing float behaviour) can't take effect on \endfigure. Please complain to your document class author. Package subfig Warning: Your document class has a bad definition of \endtable, most likely \let\endtable=\end@float which has now been changed to \def\endtable{\end@float} because otherwise subsequent changes to \end@float (like done by several packages changing float behaviour) can't take effect on \endtable. Please complain to your document class author. (/usr/share/texmf/tex/latex/caption/caption.sty `rotating' package detected `float' package detected ) LaTeX Warning: You have requested, on input line 139, version `2005/06/26' of package caption, but only version `1995/04/05 v1.4b caption package (AS)' is available. ! Undefined control sequence. l.163 \DeclareCaptionOption {listofformat}{\caption@setlistofformat{#1}} How can I solve it? Thanks and regards!

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  • How to sort a list so that managers are always ahead of their subordinates

    - by James Black
    I am working on a project using Groovy, and I would like to take an array of employees, so that no manager follows their subordinates in the array. The reason being that I need to add people to a database and I would prefer not to do it in two passes. So, I basically have: <employees> <employee> <employeeid>12</employeeid> <manager>3</manager> </employee> <employee> <employeeid>1</employeeid> <manager></manager> </employee> <employee> <employeeid>3</employeeid> <manager>1</manager> </employee> </employees> So, it should be sorted as such: employeeid = 1 employeeid = 3 employeeid = 12 The first person should have a null for managers. I am thinking about a binary tree representation, but I expect it will be very unbalanced, and I am not certain the best way to do this using Groovy properly. Is there a way to do this that isn't going to involve using nested loops?

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  • Maven-ear-plugin - excluding multiple modules i.e. jars, wars etc.

    - by James Murphy
    I've been using the Maven EAR plugin for creating my ear files for a new project. I noticed in the plugin documentation you can specify exclude statements for modules. For example the configuration for my plugin is as follows... <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-ear-plugin</artifactId> <version>2.4.1</version> <configuration> <jboss> <version>5</version> </jboss> <modules> <!-- Include the templatecontroller.jar inside the ear --> <jarModule> <groupId>com.kewill.kdm</groupId> <artifactId>templatecontroller</artifactId> <bundleFileName>templatecontroller.jar</bundleFileName> <includeInApplicationXml>true</includeInApplicationXml> </jarModule> <!-- Exclude the following classes from the ear --> <jarModule> <groupId>javax.activation</groupId> <artifactId>activation</artifactId> <excluded>true</excluded> </jarModule> <jarModule> <groupId>antlr</groupId> <artifactId>antlr</artifactId> <excluded>true</excluded> </jarModule> ... declare multiple excludes <security> <security-role id="SecurityRole_1234"> <role-name>admin</role-name> </security-role> </security> </configuration> </plugin> </plugins> This approach is absolutely fine with small projects where you have say 4-5 modules to exclude. However, in my project I have 30+ and we've only just started the project so as it expands this is likely to grow. Besides explicitly declaring exclude statements per module is it possible to use wildcards or and exclude all maven dependencies flag to only include those modules i declare and exclude everything else? Is anyone aware of a more elegant solution?

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  • VS2008: File creation fails randomly in unit testing?

    - by Tim
    I'm working on implementing a reasonably simple XML serializer/deserializer (log file parser) application in C# .NET with VS 2008. I have about 50 unit tests right now for various parts of the code (mostly for the various serialization operations), and some of them seem to be failing mostly at random when they deal with file I/O. The way the tests are structured is that in the test setup method, I create a new empty file at a certain predetermined location, and close the stream I get back. Then I run some basic tests on the file (varying by what exactly is under test). In the cleanup method, I delete the file again. A large portion (usually 30 or more, though the number varies run to run) of my unit tests will fail at the initialize method, claiming they can't access the file I'm trying to create. I can't pin down the exact reason, since a test that will work one run fails the next; they all succeed when run individually. What's the problem here? Why can't I access this file across multiple unit tests? Relevant methods for a unit test that will fail some of the time: [TestInitialize()] public void LogFileTestInitialize() { this.testFolder = System.Environment.GetFolderPath( System.Environment.SpecialFolder.LocalApplicationData ); this.testPath = this.testFolder + "\\empty.lfp"; System.IO.File.Create(this.testPath); } [TestMethod()] public void LogFileConstructorTest() { string filePath = this.testPath; LogFile target = new LogFile(filePath); Assert.AreNotEqual(null, target); Assert.AreEqual(this.testPath, target.filePath); Assert.AreEqual("empty.lfp", target.fileName); Assert.AreEqual(this.testFolder + "\\empty.lfp.lfpdat", target.metaPath); } [TestCleanup()] public void LogFileTestCleanup() { System.IO.File.Delete(this.testPath); } And the LogFile() constructor: public LogFile(String filePath) { this.entries = new List<Entry>(); this.filePath = filePath; this.metaPath = filePath + ".lfpdat"; this.fileName = filePath.Substring(filePath.LastIndexOf("\\") + 1); } The precise error message: Initialization method LogFileParserTester.LogFileTest.LogFileTestInitialize threw exception. System.IO.IOException: System.IO.IOException: The process cannot access the file 'C:\Users\<user>\AppData\Local\empty.lfp' because it is being used by another process..

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  • App session cookie not being created in Rails, sporadically

    - by James
    Hi everyone, This is an issue sporadically for very few users, however we haven't been able to replicate it. However I have now got a Chrome instance (Mac) which is reproducing the error (for some unknown reason), and I hope to not restart it until I have this nailed! Rails application, using memcached for session store. While the bug manifests in the _app_session_id cookie not being created, our javascript-generated cookie test and app-generated language cookies are being created successfully. This means that InvalidAuthenticityToken errors are thrown for every form that is submitted by those afflicted - people can't log into the app. The error occurs across all browsers - had reports for IE7 and Firefox (which most users use). Switching to another browser often fixes the issue (though not always), and standard cache-cookie-clear tactics do not. So now that I have got Chrome open which is having the same issue - in development, staging and live environments (meaning http and https). All other browsers are fine. I've restarted the servers and restarted memcached. I don't really want to restart Chrome - in the risk that the issue does go away with that (having said that, it hasn't worked for users). I've been tcpdumping the requests - and although I'll keep digging, I'd love it if anyone had any suggestions, places to start looking, anything. This is really painful ;) Thanks!

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  • Using SQLLite transactions I/O Error

    - by james.ingham
    I currently have a client / server setup where the client sends data to the server and then the server saves the data to a SQLite database file. To do this I am using transactions which works fine in windows 7 when I run around 30 clients (each client sending data back between 5 - 30 seconds). When using the same software in Windows XP, I can get/set data multiple times with no problems until I run around 20 clients I start to get Windows Delayed wrote failed errors: This fires an exception on the server: I'm assuming this is either something to do with XP or a hardware issue on the machine i'm running XP. Does anyone have any advice to avoid this? Or if I should just catch the exception and retry saving the data? Thanks

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  • SQL Agent Logon - What is going on?

    - by James Wiseman
    I have a DTSX package that is called from a SQL Agent Job. The DTSX package references a file at a fixed location (e.g. e:\mssql\myfile.txt). On most machines, this location exists, but on some I have to manually map this (which is not a problem - I know a better solution would be to use package conifgurations to dynamically pull the file location, but this is not an option here - and anyway I'd like to understand what is going on) I have set up the agent service to run as a specific user (e.g. myuser) When I log on as this user and map the directory, then run the dtsx package directly, then all goes well. When I run the package through a SQL Agent Job, the file cannot be found. If I add a command line job step to the agent job to map the drive: net use e: \\svr\location Then all works file also. So what is going on in the backgound? How come the SQL Agent user requries the drive mapping even when I am logged in as this user.

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  • Prefix for element not bound

    - by Tim
    Hello! I am a newbie in Flex development and using Flash Builder 4 with SDK 4. Now I get the error that "the prefix "fx" for element "fx:Style" is not bound" in line number 4. I searched for it, and it has sth. to do with namespaces, but I can not solve it by myelf. I have the file called "UserStory.mxml" in the directory "components" to place it via the main.mxml onto the screen: <fx:Script> <![CDATA[ import components.UserStory; private function init():void { var userStory1:UserStory = new UserStory(); userStory1.x = 100; userStory1.y = 100; userStory1.userStoryText = "test"; this.addChild(userStory1); } ]]> </fx:Script> The file in which the error occurs in line no. 4: <?xml version="1.0" encoding="utf-8"?> <mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" width="300" height="150" styleName="userstory"> <fx:Style source="styles/styles.css"/> <fx:Text x="5" y="5" width="275" height="135" text="{userStoryText}" fontFamily="notes" fontSize="18"/> <mx:Script> ... </mx:Script> </mx:Canvas> Can someone tell me what's wrong? Thanks a lot in advance & Best Regards.

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  • Strange error when filling a data adapter.

    - by Tim C
    I am receiving the following error in my code (c#, .Net 3.5, VS2008) when I try to connect to an Excel sheet and fill a OleDbDataAdapter with the results of a query. First the error: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. And here is the code, which is honestly pretty simple: var excelFileName = string.Format("c:/Metadata_Tool.xlsm"); var connectionString = string.Format("Provider=Microsoft.ACE.OLEDB.12.0; Data Source={0}; Extended Properties=Excel 12.0;HDR=YES;", excelFileName); var adapter = new OleDbDataAdapter("Select * FROM [Video Tagging XML]", connectionString); var ds = new DataSet(); adapter.Fill(ds, "VTX"); DataTable data = ds.Tables["VTX"]; foreach (DataRow myRow in data.Rows) { foreach (DataColumn myColumn in data.Columns) { Console.Write("\t{0}", myRow[myColumn]); } Console.WriteLine(); } Console.ReadLine(); I get the error on the line adapter.Fill(ds,"VTX");. I did find a microsoft forum post saying to turn on JIT optimization in VS2008 from the Tools/Options/Debug/General menu, but this did not seem to help. Any help would be greatly appreciated thanks!

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  • What's the primary use of Windows Event Viewer?

    - by james.ingham
    Hi all, Just wondering what everybody's opinion is on the Windows Admin tool Event Viewer? I'm writing a WCF application at the moment and have started logging errors to the windows event viewer when I handle them. I then started thinking, should I be logging more than just errors, such as when a user has logged in or out or would you go further logging even more activity? Or is this a tool that's mainly used for testing without using the debugger? Any input appreciated:-)

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  • number several equations with only one number

    - by Tim
    Hi, How can I number several equations in a align environment using only one number? For example \begin{align} w^T x_i + b \geqslant 1-\xi_i \text{ if } y_i=1, \nonumber \\ w^T x_i + b \leqslant -1+\xi_i \text{ if } y_i=-1, \end{align} The numbering will appear next to the second equation. But it would be better if it appears between the lines of the two equations. In this case how to label this group of equations for later referring to? Thanks and regards!

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  • Regular expressions and the question mark

    - by James P.
    I'm having trouble finding a regular expression that matches the following String. Korben;http://feeds.feedburner.com/KorbensBlog-UpgradeYourMind?format=xml;1 One problem is escaping the question mark. Java's pattern matcher doesn't seem to accept \? as a valid escape sequence but it also fails to work with the tester at myregexp.com. Here's what I have so far: ([a-zA-Z0-9])+;http://([a-zA-Z0-9./-]+);[0-9]+ Any suggestions?

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  • How to Use Grizzly Embedded Server for Mule as Well as Jersey

    - by Tim
    I'm currently using JerseyTest w/ Grizzly embedded server to test some code. I do some very simple configuration to point it to the proper resources: Map<String, String> initParams = new HashMap<String, String>(); initParams.put("com.sun.jersey.config.property.packages", "com.sample.service"); ApplicationDescriptor appDescriptor = new ApplicationDescriptor(); appDescriptor.setServletInitParams(initParams); super.setupTestEnvironment(appDescriptor); This works fine and the Jersey components are available and working as expected. I'm now trying to add some Mule functionality to some of these Jersey calls, but Mule is not being properly initialized/configured by Grizzly. Has anyone gotten this kind of setup running? What additional configuration do I need to do with JerseyTest/GrizzlyWebServer to get it to initialize Mule properly?

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  • Hibernate MySQL transaction configuration issue

    - by James
    I'm having trouble starting a transaction with Hibernate and MySQL while running in JUnit. I'm getting a HibernateException which states: "No TransactionManagerLookup specified". I believe this error is because I don't have a proper configuration setting for hibernate.transaction.manager_lookup_class. I see that under the namespace of org.hibernate.transaction there are quite a few different lookup classes that I could use. All of the documentation that I could find on these was very vague. My question is what is the appropriate one for MySQL?

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  • Can nusoap return array of string ?

    - by Tim
    Hi all, I would like to return an array of string in my web services I've tryed : <?php require_once('nusoap/nusoap.php'); $server = new soap_server(); $server->configureWSDL('NewsService', 'urn:NewsService'); $server->register('GetAllNews', array(), array('return' => 'xsd:string[]'), 'urn:NewsService', 'urn:NewsService#GetAllNews', 'rpc', 'literal', '' ); // Define the method as a PHP function function GetAllNews() { $stack = array("orange", "banana"); array_push($stack, "apple", "raspberry"); return $stack; } but it doesn't work. What is the correct syntax for that ? Thanks in advance for any help

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  • Error Handling without Exceptions

    - by James
    While searching SO for approaches to error handling related to business rule validation , all I encounter are examples of structured exception handling. MSDN and many other reputable development resources are very clear that exceptions are not to be used to handle routine error cases. They are only to be used for exceptional circumstances and unexpected errors that may occur from improper use by the programmer (but not the user.) In many cases, user errors such as fields that are left blank are common, and things which our program should expect, and therefore are not exceptional and not candidates for use of exceptions. QUOTE: Remember that the use of the term exception in programming has to do with the thinking that an exception should represent an exceptional condition. Exceptional conditions, by their very nature, do not normally occur; so your code should not throw exceptions as part of its everyday operations. Do not throw exceptions to signal commonly occurring events. Consider using alternate methods to communicate to a caller the occurrence of those events and leave the exception throwing for when something truly out of the ordinary happens. For example, proper use: private void DoSomething(string requiredParameter) { if (requiredParameter == null) throw new ArgumentExpcetion("requiredParameter cannot be null"); // Remainder of method body... } Improper use: // Renames item to a name supplied by the user. Name must begin with an "F". public void RenameItem(string newName) { // Items must have names that begin with "F" if (!newName.StartsWith("F")) throw new RenameException("New name must begin with /"F/""); // Remainder of method body... } In the above case, according to best practices, it would have been better to pass the error up to the UI without involving/requiring .NET's exception handling mechanisms. Using the same example above, suppose one were to need to enforce a set of naming rules against items. What approach would be best? Having the method return a enumerated result? RenameResult.Success, RenameResult.TooShort, RenameResult.TooLong, RenameResult.InvalidCharacters, etc. Using an event in a controller class to report to the UI class? The UI calls the controller's RenameItem method, and then handles an AfterRename event that the controller raises and that has rename status as part of the event args? The controlling class directly references and calls a method from the UI class that handles the error, e.g. ReportError(string text). Something else... ? Essentially, I want to know how to perform complex validation in classes that may not be the Form class itself, and pass the errors back to the Form class for display -- but I do not want to involve exception handling where it should not be used (even though it seems much easier!) Based on responses to the question, I feel that I'll have to state the problem in terms that are more concrete: UI = User Interface, BLL = Business Logic Layer (in this case, just a different class) User enters value within UI. UI reports value to BLL. BLL performs routine validation of the value. BLL discovers rule violation. BLL returns rule violation to UI. UI recieves return from BLL and reports error to user. Since it is routine for a user to enter invalid values, exceptions should not be used. What is the right way to do this without exceptions?

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  • Generate webservice soap client from wsdl when server using Windows Integrated Authentication

    - by James Black
    There is an SAP server that has some webservices I need to use, so I am trying to use wsimport to generate the client stubs. I don't want to find all the wsdls and schemas that are referenced and modify them to do it locally, as that isn't sustainable, if they service should change. So, how can I use wsimport to fetch a wsdl and generate the client stubs when the server is using Windows Integrated Authentication, where even the wsdl requires credentials.

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