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  • ASP.NET MVC2 JQuery datepicker errors

    - by Andy Evans
    I'm having the "Microsoft JScript runtime error: Object doesn't support this property or method" error when calling the datepicker function on a textbox generated from my data model. in the head section I have: <link href="../../Content/Site.css" rel="stylesheet" type="text/css" /> <script src="../../Scripts/jquery-1.4.1.min.js" type="text/javascript"></script> <script src="../../Scripts/MicrosoftAjax.js" type="text/javascript"></script> <script src="../../Scripts/MicrosoftMvcValidation.js" type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function () { $('#dob').datepicker(); }); and in the body section I have: <% Html.EnableClientValidation(); %> <% using (Html.BeginForm()) { %> ... <tr> <td class="label">Date of Birth:</td> <td><%: Html.TextBoxFor(model => model.dob, new { @class = "inputtext" })%></td> <td><%: Html.ValidationMessageFor(model => model.dob) %></td> </tr> ... <% } %> Do I have something in the wrong place? Again, you folks are a great help and assistance would be greatly appreciated.

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  • feedparser - various errors

    - by Eiriks
    I need feedparser (se http://www.feedparser.org) for a project, and want to keep third party modules in a separate folder. I did this by adding a folder to my python path, and putting relevant modules there, among them feedparser. This first attempt to import feedparser resulted in import feedparser Traceback (most recent call last): File "", line 1, in File "/home/users/me/modules/feedparser.py", line 1 ed socket timeout; added support for chardet library ^ SyntaxError: invalid syntax I found the text "socket timeout; added..." in the comments at the bottom of the file, removed these comments, and tried again: import feedparser Traceback (most recent call last): File "", line 1, in File "/home/users/me/modules/feedparser.py", line 1 = [(key, value) for key, value in attrs if key in self.acceptable_attributes] ^ IndentationError: unexpected indent Ok, so some indent error. I made sure the indent in the function in question where ok (moved some line breaks down to no-indent). And tried again: import feedparser Traceback (most recent call last): File "", line 1, in File "/home/users/me/modules/feedparser.py", line 1 , value) for key, value in attrs if key in self.acceptable_attributes] ^ SyntaxError: invalid syntax As much I google, I cannot find anything wrong with the syntax: def unknown_starttag(self, tag, attrs): if not tag in self.acceptable_elements: if tag in self.unacceptable_elements_with_end_tag: self.unacceptablestack += 1 return attrs = self.normalize_attrs(attrs) attrs = [(key, value) for key, value in attrs if key in self.acceptable_attributes] _BaseHTMLProcessor.unknown_starttag(self, tag, attrs) Now what? Is my approach all wrong? Why do I keep producing these errors in a module that seems so well tested and trusted?

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  • HL7 parsing in PHP

    - by Narcissus
    Hi all, I'm looking into options for parsing HL7 messages via PHP. I'm aware of the Net_HL7 package on PEAR but to be perfectly honest, I don't think that I want to base my code around a seemingly 'abandoned' package and even if I did, I just don't think that my brain suits the functions 'correctly'. Maybe if I had more of an HL7 background it would make a bit more sense, I don't know. Anyway: I'm guessing that 95% of the time, I'm going to be parsing and reading data from messages. The other 5%, I'll be creating and/or sending messages. I don't necessarily need to do any form of validation on the messages themselves, I just need to pull/push data. I definitely need support for 'non-XML' HL7 v2.x, but naturally XML-based v2 and v3 would be a bonus. So does anyone have any suggestions as to other libraries that I might use? I'm looking for pure PHP solutions as I want to have minimal requirements on the server that aren't "copy this directory here". Thanks!

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  • Child web.config can't clear <pages><controls> from parent web.config

    - by Lance Rushing
    How can I "clear" the vendor defined <controls> in my child app's web.config? Parent Web Config. <system.web> <pages> <controls> <!-- START: Vendor Custom Control --> <add tagPrefix="asp" namespace="VENDOR.Web.UI.Base" assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral /> ... <!-- END: Vendor Custom Control --> ... </controls> <tagMapping> <add tagType="System.Web.UI.WebControls.WebParts.WebPartManager" mappedTagType="Microsoft.Web.Preview.UI.Controls.WebParts.WebPartManager" /> <add tagType="System.Web.UI.WebControls.WebParts.WebPartZone" mappedTagType="Microsoft.Web.Preview.UI.Controls.WebParts.WebPartZone" /> </tagMapping> </pages> </system.web> Child: <system.web> <pages> <controls> <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> <add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> </controls> <tagMapping> <clear/> </tagMapping> </pages> </system.web> I have it working for the <tagMapping> section, but <controls> does not support <clear/> (or ).

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  • How to programmatically start a WPF application from a unit test?

    - by Lernkurve
    Problem VS2010 and TFS2010 support creating so-called Coded UI Tests. All the demos I have found, start with the WPF application already running in the background when the Coded UI Test begins or the EXE is started using the absolute path to it. I, however, would like to start my WPF application under test from the unit test code. That way it'll also work on the build server and on my peer's working copies. How do I accomplish that? My discoveries so far a) This post shows how to start a XAML window. But that's not what I want. I want to start the App.xaml because it contains XAML resources and there is application logic in the code behind file. b) The second screenshot on this post shows a line starting with ApplicationUnterTest calculatorWindow = ApplicationUnderTest.Launch(...); which is conceptually pretty much what I am looking for, except that again this example uses an absolute path the the executable file. c) A Google search for "Programmatically start WPF" didn't help either.

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  • Code Golf: Collatz Conjecture

    - by Earlz
    Inspired by http://xkcd.com/710/ here is a code golf for it. The Challenge Given a positive integer greater than 0, print out the hailstone sequence for that number. The Hailstone Sequence See Wikipedia for more detail.. If the number is even, divide it by two. If the number is odd, triple it and add one. Repeat this with the number produced until it reaches 1. (if it continues after 1, it will go in an infinite loop of 1 -> 4 -> 2 -> 1...) Sometimes code is the best way to explain, so here is some from Wikipedia function collatz(n) show n if n > 1 if n is odd call collatz(3n + 1) else call collatz(n / 2) This code works, but I am adding on an extra challenge. The program must not be vulnerable to stack overflows. So it must either use iteration or tail recursion. Also, bonus points for if it can calculate big numbers and the language does not already have it implemented. (or if you reimplement big number support using fixed-length integers) Test case Number: 21 Results: 21 -> 64 -> 32 -> 16 -> 8 -> 4 -> 2 -> 1 Number: 3 Results: 3 -> 10 -> 5 -> 16 -> 8 -> 4 -> 2 -> 1 Also, the code golf must include full user input and output.

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  • Problem deleting record using Entity Framework and System.Data.SQLite

    - by jamone
    I have a SQLite DB that is set up so when I delete a Person the delete is cascaded. This works fine when I manually delete a Person (all records that reference the PersonID are deleted). But when I use Entity Framework to delete the Person I get an error: System.InvalidOperationException: The operation failed: The relationship could not be changed because one or more of the foreign-key properties is non-nullable. When a change is made to a relationship, the related foreign-key property is set to a null value. If the foreign-key does not support null values, a new relationship must be defined, the foreign-key property must be assigned another non-null value, or the unrelated object must be deleted. I don't understand why this is occurring. My trigger is set to clean up all related objects before deleting the object it was told to delete. When I go into the model editor and check the properties of the relationship it shows no action for the OnDelete property. Why isn't this set correctly by pulling it from the DB? Here's the relivent SQL for my tables. CREATE TABLE [SomeTable] ( [SomeTableID] INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, [PersonID] INTEGER NOT NULL REFERENCES [Person](PersonID) ON DELETE CASCADE ) CREATE TABLE [Person] ( [PersonID] INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT )

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  • How do I install LFE on Ubuntu Karmic?

    - by karlthorwald
    Erlang was already installed: $dpkg -l|grep erlang ii erlang 1:13.b.3-dfsg-2ubuntu2 Concurrent, real-time, distributed function ii erlang-appmon 1:13.b.3-dfsg-2ubuntu2 Erlang/OTP application monitor ii erlang-asn1 1:13.b.3-dfsg-2ubuntu2 Erlang/OTP modules for ASN.1 support ii erlang-base 1:13.b.3-dfsg-2ubuntu2 Erlang/OTP virtual machine and base applica ii erlang-common-test 1:13.b.3-dfsg-2ubuntu2 Erlang/OTP application for automated testin ii erlang-debugger 1:13.b.3-dfsg-2ubuntu2 Erlang/OTP application for debugging and te ii erlang-dev 1:13.b.3-dfsg-2ubuntu2 Erlang/OTP development libraries and header [... many more] Erlang seems to work: $ erl Erlang R13B03 (erts-5.7.4) [source] [64-bit] [smp:2:2] [rq:2] [async-threads:0] [hipe] [kernel-poll:false] Eshell V5.7.4 (abort with ^G) 1> I downloaded lfe from github and checked out 0.5.2: git clone http://github.com/rvirding/lfe.git cd lfe git checkout -b local0.5.2 e207eb2cad $ configure configure: command not found $ make mkdir -p ebin erlc -I include -o ebin -W0 -Ddebug +debug_info src/*.erl #erl -I -pa ebin -noshell -eval -noshell -run edoc file src/leex.erl -run init stop #erl -I -pa ebin -noshell -eval -noshell -run edoc_run application "'Leex'" '"."' '[no_packages]' #mv src/*.html doc/ Must be something stupid i missed :o $ sudo make install make: *** No rule to make target `install'. Stop. $ erl -noshell -noinput -s lfe_boot start {"init terminating in do_boot",{undef,[{lfe_boot,start,[]},{init,start_it,1},{init,start_em,1}]}} Crash dump was written to: erl_crash.dump init terminating in do_boot () Is there an example how I would create a hello world source file and compile and run it?

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  • Stuck in itunesconnect submission version number limbo...

    - by Kevin Beimers
    I did a very very stupid thing. I was uploading an update to my app on itunesconnect, but typed in the wrong version number. The version number I typed (1.02) was smaller than the one that's already up there (1.1). Apple accepted the submission, and planned to upload binary later. Went to upload the binary (also 1.02), but only AFTER uploading did Apple inform me that it can't accept my binary because it's a smaller number than the current version. BUT I CAN'T CHANGE THE VERSION NUMBER IN THE SUBMISSION FORM. AND I CAN'T CANCEL THE UPDATE. [string of profanity symbols] So now, Apple is waiting for an update that it will never accept. Surely I'm not the only dope who's done this. I've written to the Contact Us form, but is there anything else I can do? Anyone else had to deal with this, if so, how long did it take to sort out? Thanks for anything on this, even if it's just moral support, -k.

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  • JSON-RPC and Json-rpc service discovery specifications

    - by Artyom
    Hello, I'm going to implement JSON-PRC web service. I need specifications for this. So far I had found only one resource that can be called as real specifications: JSON-RPC 1.0 http://json-rpc.org/wiki/specification Proposal of JSON-PRC 2.0: http://groups.google.com/group/json-rpc/web/json-rpc-2-0 (why is it on google groups?) However I've seen that JavaScript frameworks like Dojo actively use JSON-RPC SMD Service Mapping Description proposal But it requires JSON Schema specifications, but it redirects to incorrect URL as reference. So far I had found following: http://tools.ietf.org/html/draft-zyp-json-schema-02 And it is still draft... Can anybody point me to some actual specifications... At least something official updated? Because it looks like that implementing JSON-RPC 1.0 as is may be not enough, at least for frameworks like Dojo. Or am I wrong? Questions: Would implementation of JSON-RPC 1.0 specifications be enough to provide JSON-RPC service for most of modern clients, and how many clients there (if at-all) that actually support beyond JSON-RPC 1.0 capabilities (SMD, Schema, 2.0)? Because it looks like that JSON-RPC 1.0 is only one that has official specifications (and not draft) If I should implement SMD, or it is recommended can somebody point to official, most recent specifications of Json Schema and Service Mapping Description or links I found are really "the specifications?" Are JSON-RPC 2.0, SMD and JSON-Schema drafts stable enough to implement them? Note: do not suggest existing JSON-RPC service implementations. Anybody?

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  • EWS 2010: Public Folder Problem using .NET

    - by Daniel
    I've recently coded a .NET Console app using C#. It's purpose was to read the emails within a specific folder, parse them for specific values and save them to a database. Our email system, at the time I originally coded this, was Exchange 2003. However, I was made aware we would soon be upgrading to Exchange 2010: ergo, I built the code to work in both environments. Following the migration to 2010, however, the app has broken. The app uses the EWS API for 2010 functionality. When it attempts to use the ExchangeService's FindFolders method to find the publicfoldersroot, it throws an exception. Here's the code: ExchangeService service = new ExchangeService(); FindFoldersResults findRootFldrs; service.UseDefaultCredentials = true; service.AutodiscoverUrl("[email protected]", delegate(string x) { return true; }); FolderView fview = new FolderView(100); fview.Traversal = FolderTraversal.Deep; if (findRootFldrsSub == null) { //Set to root to test local folders -- findRootFldrs = service.FindFolders(WellKnownFolderName.PublicFoldersRoot, fview); } The exception: "The mailbox that was requested doesn't support the specified RequestServerVersion" I've attempted: -Setting the exchangeservice to 2007 (throws an exception: "An internal server error occurred. The operation failed.") -Giving myself the highest level of permission to the Public Folder (no effect) -Manually setting my credentials (no effect) I can view the public folders in outlook; the publicfoldersroot property is available in the intellisense; the code works on local folders (I can parse my inbox). My current thinking is that it's a setting on the recent setup of Exchange 2010: unfortunately that isn't really my field.

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  • UIToolBar and iPhone Interface Orientation Problem

    - by Leo
    I am developing an application in iPhone. One view support orientation in portrait and landscape. I have two separate views for both orientation. This view has a UIToolbar at the top. Problem is when I change view back from landscape to portrait, UIToolbar at the top disappears. I want toolbar to come back in its original position when it is rotated back to portrait. This is what I am doing in my program. - (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation) interfaceOrientation duration:(NSTimeInterval)duration { if (interfaceOrientation == UIInterfaceOrientationPortrait) { self.view = self.portrait; self.view.transform = CGAffineTransformIdentity; self.view.transform = CGAffineTransformMakeRotation(degreesToRadian(0)); self.view.bounds = CGRectMake(0.0, 0.0, 300.0, 480.0); } else if (interfaceOrientation == UIInterfaceOrientationLandscapeLeft) { self.view = self.landscape; self.view.transform = CGAffineTransformIdentity; self.view.transform = CGAffineTransformMakeRotation(degreesToRadian(-90)); self.view.bounds = CGRectMake(0.0, 0.0, 460.0, 320.0); } else if (interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) { self.view = self.portrait; self.view.transform = CGAffineTransformIdentity; self.view.transform = CGAffineTransformMakeRotation(degreesToRadian(180)); self.view.bounds = CGRectMake(0.0, 0.0, 300.0, 480.0); } else if (interfaceOrientation == UIInterfaceOrientationLandscapeRight) { self.view = self.landscape; self.view.transform = CGAffineTransformIdentity; self.view.transform = CGAffineTransformMakeRotation(degreesToRadian(90)); self.view.bounds = CGRectMake(0.0, 0.0, 460.0, 320.0); } } I don't know what am I missing here? Any help would be really appreciated.

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  • C# winforms: A problem with sending an email cointaining the image background

    - by Tony
    Hi, I'm trying to figure out how to resolve the problem: I create the MailMessage object like that and send it: MailMessage mail = new MailMessage(); mail.From = new MailAddress("[email protected]"); mail.To.Add("[email protected]"); mail.Subject = "This is an email"; AlternateView plainView = AlternateView.CreateAlternateViewFromString("This is my plain text content, viewable by those clients that don't support html", null, MediaTypeNames.Text.Plain); (1) AlternateView htmlView = AlternateView.CreateAlternateViewFromString("Here is an embedded image.<img src=cid:companylogo>", null, "text/html"); LinkedResource logo = new LinkedResource("c:\\cop1.jpg"); logo.ContentId = "companylogo"; htmlView.LinkedResources.Add(logo); mail.AlternateViews.Add(plainView); mail.AlternateViews.Add(htmlView); Everything is OK, the mail has the image in the background. But the problem is, when I change in the paragraph (1) from (click) to (click) everything fails, the image is not recognized and is threated as a attachment ! I think that is caused by the first colon here background-image:cid:companylogo Is it possible to resolve that ?

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  • CreateProcessAsUser doesn't draw the GUI

    - by pavel.tuzov
    Hi, I have a windows service running under "SYSTEM" account that checks if a specific application is running for each logged in user. If the application is not running, the service starts it (under corresponding user name). I'm trying to accomplish my goal using CreateProcessAsUser(). The service does start the application under corresponding user name, but the GUI is not drawn. (Yes, I'm making sure that "Allow service to interact with desktop" check box is enabled). System: XP SP3, labguage: C# Here is some code that might be of interest: PROCESS_INFORMATION processInfo = new PROCESS_INFORMATION(); startInfo.cb = Marshal.SizeOf(startInfo); startInfo.lpDesktop = "winsta0\\default"; bResult = Win32.CreateProcessAsUser(hToken, null, strCommand, IntPtr.Zero, IntPtr.Zero, false, 0, IntPtr.Zero, null, ref startInfo, out processInfo); As far as I understand, setting startInfo.lpDesktop = "winsta0\default"; should have used the desktop of corresponding user. Even contrary to what is stated here: http://support.microsoft.com/kb/165194, I tried setting lpDesktop to null, or not setting it at all, both giving the same result: process was started in the name of expected user and I could see a part of window's title bar. The "invisible" window intercepts mouse click events, handles them as expected. It just doesn't draw itself. Is anyone familiar with such a problem and knows what am I doing wrong?

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  • NHibernate: Mapping different dynamic components based on a discriminator

    - by George Mauer
    My domain entities each have a set of "fixed" properties and a set of "dynamic" properties which can be added at runtime. I handle this by using NHibernate's dynamic-component functionality. public class Product { public virtual Guid Id { get; } public virtual string Name { get; set;} public virtual IDictionary DynamicComponents { get; } } Now I have the following situation public class Customer { public virtual Guid Id { get; } public virtual string Type { get; set;} public virtual IDictionary DynamicProperties { get; } } Where a CustomerType is something like "Online" or "InPerson". Furthermore an Online customer has dynamic properties "Name" and "IPAddress" and an InPerson Customer has dynamic properties "Name" and "Salesman". Which customer types are available and the extra properties on them are configured in meta-data which is used to generate hbm files on application start. I could figure out some way to knock this together using an intermediate DTO layer, but is there any support in NHibernate for this scenario? The only difficulty seems to be that all the different "types" of customer map to the same Customer class.

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  • Generate JSON object with transactionReceipt

    - by Carlos
    Hi, I've been the past days trying to test my first in-app purchse iphone application. Unfortunately I can't find the way to talk to iTunes server to verify the transactionReceipt. Because it's my first try with this technology I chose to verify the receipt directly from the iPhone instead using server support. But after trying to send the POST request with a JSON onbject created using the JSON api from google code, itunes always returns a strange response (instead the "status = 0" string I wait for). Here's the code that I use to verify the receipt: - (void)recordTransaction:(SKPaymentTransaction *)transaction { NSString *receiptStr = [[NSString alloc] initWithData:transaction.transactionReceipt encoding:NSUTF8StringEncoding]; NSDictionary *jsonDictionary = [NSDictionary dictionaryWithObjectsAndKeys:@"algo mas",@"receipt-data",nil]; NSString *jsonString = [jsonDictionary JSONRepresentation]; NSLog(@"string to send: %@",jsonString); NSLog(@"JSON Created"); urlData = [[NSMutableData data] retain]; //NSURL *sandboxStoreURL = [[NSURL alloc] initWithString:@"https://sandbox.itunes.apple.com/verifyReceipt"]; NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://sandbox.itunes.apple.com/verifyReceipt"]]; [request setHTTPMethod:@"POST"]; [request setHTTPBody:[jsonString dataUsingEncoding:NSUTF8StringEncoding]]; NSLog(@"will create connection"); [[NSURLConnection alloc] initWithRequest:request delegate:self]; } maybe I'm forgetting something in the request's headers but I think that the problem is in the method I use to create the JSON object. HEre's how the JSON object looks like before I add it to the HTTPBody : string to send: {"receipt-data":"{\n\t\"signature\" = \"AUYMbhY ........... D0gIjEuMCI7Cn0=\";\n\t\"pod\" = \"100\";\n\t\"signing-status\" = \"0\";\n}"} The responses I've got: complete response { exception = "java.lang.IllegalArgumentException: Property list parsing failed while attempting to read unquoted string. No allowable characters were found. At line number: 1, column: 0."; status = 21002; } Thanks a lot for your guidance.

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  • Newbie, deciding Python or Erlang

    - by Joe
    Hi Guys, I'm a Administrator (unix, Linux and some windows apps such as Exchange) by experience and have never worked on any programming language besides C# and scripting on Bash and lately on powershell. I'm starting out as a service provider and using multiple network/server monitoring tools based on open source (nagios, opennms etc) in order to monitor them. At this moment, being inspired by a design that I came up with, to do more than what is available with the open source at this time, I would like to start programming and test some of these ideas. The requirement is that a server software that captures a stream of data and store them in a database(CouchDB or MongoDB preferably) and the client side (agent installed on a server) would be sending this stream of data on a schedule of every 10 minutes or so. For these two core ideas, I have been reading about Python and Erlang besides ruby. I do plan to use either Amazon or Rackspace where the server platform would run. This gives me the scalability needed when we have more customers with many servers. For that reason alone, I thought Erlang was a better fit(I could be totally wrong, new to this game) and I understand that Erlang has limited support in some ways compared to Ruby or Python. But also I'm totally new to the programming realm of things and any advise would be appreciated grately. Jo

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  • jsf datatable lazy load filter and sorting

    - by darko petreski
    Hi, I have worked on several projects with a lot of data tables. The tables had sorting, filtering and paging of course on server side and with help of the db (all databases has implemented sording, filtering -where and limit the returned results). When workig on real application there are a thousands of even a millions rows. But I have seen several JSF dagatable components. They implement pagination, sorting and filtering on client side!! According to me this is very silly. This technology is called enterprise and they sort the data on the client side with java script! I have not seen any good JSF data grid that has build in features for sorting, filtering and lazy loading on the server side. Why is that? Am I looking in wrong direction or really there in no build support for this. Lately I am testing primefaces and lazy loading datatable. It really works fine, but the table i can only lazy load. If you add sort and filter then the problems begin. Conclusion: Is there any datatable JSF component than can perform lazy load pagination, and filtering and sorting on server side. If I need to implement my own solution thanks to the teams that made client side sorting and filtering, they are useless. Regards

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  • jquery tab switching links so they jump to top of page?

    - by Evan
    I was given some great help by redsquare to get this far to change jquery tabs from links within the content, but I have one more issue that I'm looking for support on... When a user clicks a link to switch to a different tab from within the content, can i get the page to jump to the top of the page? Within my demo link, scroll to the bottom of the page to click the links and they switch tabs just perfectly, which you can confirm if you scroll up. So, I'm looking for the switch to also jump the user to the top of the page, so the user doesn't have to "scroll" to the top of the page to begin reading new content. Here's my demo: http://jsbin.com/etoku3/11 Existing code: <script type="text/javascript"> $(document).ready(function() { var $tabs = $("#container-1").tabs(); var changeTab = function(ev){ ev.preventDefault(); var tabIndex = this.hash.charAt(this.hash.length-1) -1; $tabs.tabs('select', tabIndex); }; $('a.tablink').click(changeTab); }); </script> Thank you so much! Evan

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  • How to best transfer large payloads of data using wsHttp with WCF with message security

    - by jpierson
    I have a case where I need to transfer large amounts of serialized object graphs (via NetDataContractSerializer) using WCF using wsHttp. I'm using message security and would like to continue to do so. Using this setup I would like to transfer serialized object graph which can sometimes approach around 300MB or so but when I try to do so I've started seeing a exception of type System.InsufficientMemoryException appear. After a little research it appears that by default in WCF that a result to a service call is contained within a single message by default which contains the serialized data and this data is buffered by default on the server until the whole message is completely written. Thus the memory exception is being caused by the fact that the server is running out of memory resources that it is allowed to allocate because that buffer is full. The two main recommendations that I've come across are to use streaming or chunking to solve this problem however it is not clear to me what that involves and whether either solution is possible with my current setup (wsHttp/NetDataContractSerializer/Message Security). So far I understand that to use streaming message security would not work because message encryption and decryption need to work on the whole set of data and not a partial message. Chunking however sounds like it might be possible however it is not clear to me how it would be done with the other constraints that I've listed. If anybody could offer some guidance on what solutions are available and how to go about implementing it I would greatly appreciate it. Related resources: Chunking Channel How to: Enable Streaming Large attachments over WCF Custom Message Encoder Another spotting of InsufficientMemoryException I'm also interested in any type of compression that could be done on this data but it looks like I would probably be best off doing this at the transport level once I can transition into .NET 4.0 so that the client will automatically support the gzip headers if I understand this properly.

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  • WCF Service : WSHttpBinding

    - by jitm
    Hello, I've created the test self-hosted wcf application and tried to add support https. Code of server application is: using System; using System.Security.Cryptography.X509Certificates; using System.ServiceModel; using System.ServiceModel.Description; using System.ServiceModel.Security; namespace SelfHost { class Program { static void Main(string[] args) { string addressHttp = String.Format("http://{0}:8002/hello", System.Net.Dns.GetHostEntry("").HostName); Uri baseAddress = new Uri(addressHttp); WSHttpBinding b = new WSHttpBinding(); b.Security.Mode = SecurityMode.Transport; b.Security.Transport.ClientCredentialType = HttpClientCredentialType.Certificate; Uri a = new Uri(addressHttp); Uri[] baseAddresses = new Uri[] { a }; ServiceHost sh = new ServiceHost(typeof(HelloWorldService), baseAddresses); Type c = typeof(IHelloWorldService); sh.AddServiceEndpoint(c, b, "hello"); sh.Credentials.ServiceCertificate.SetCertificate( StoreLocation.LocalMachine, StoreName.My, X509FindType.FindBySubjectName,"myCert"); sh.Credentials.ClientCertificate.Authentication.CertificateValidationMode = X509CertificateValidationMode.PeerOrChainTrust; try { sh.Open(); string address = sh.Description.Endpoints[0].ListenUri.AbsoluteUri; Console.WriteLine("Listening @ {0}", address); Console.WriteLine("Press enter to close the service"); Console.ReadLine(); sh.Close(); } catch (CommunicationException ce) { Console.WriteLine("A commmunication error occurred: {0}", ce.Message); Console.WriteLine(); } catch (System.Exception exc) { Console.WriteLine("An unforseen error occurred: {0}", exc.Message); Console.ReadLine(); } } } [ServiceContract] public interface IHelloWorldService { [OperationContract] string SayHello(string name); } public class HelloWorldService : IHelloWorldService { public string SayHello(string name) { return string.Format("Hello, {0}", name); } } } What name(address) should I out into line sh.AddServiceEndpoint(c, b, "hello"); because "hello" is incorrect ? Thanks.

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  • What do I do about recurring billing?

    - by phidah
    This might be a subjective question, but I'll give it a go. There are already a number of questions on SO that revolves around subscription billing management. I am currently working on a SaaS solution that will require a fully automated billing system. What I am not looking for when asking this question is not advice on implementing towards a specific payment gateway or stuff like that. Instead I'd like advice on what kind of approach to take. The functionality that I need is a system that can handle upgrades, downgrades, recurring billing, cancellations, etc. Initially for one product only, but it might over time be a requirement that the system can handle multiple products (by products I mean fundamentally different products, not different variations of the same product). As I see it there are a number of possible approaches when you need a solution like this: Code a billing server yourself that supports this and is decoupled from each product so that it can handle multiple independent products. Use a hosted solution like Recurly, Chargify, Spreedly or CheddarGetter. The advantage of using a hosted solution is obviously that you don't need PCI certification, the concern is outsourced and it is a lot faster to get up and running. These advantages come at a cost however: The most important support function for your product - i.e. the billing is not in your control. Additionally you have less control and flexibility. What would you do? If we look beyond the PCI requirements I would definately prefer to have a system coded in-house that could do this kind of job. On the other hand I've heard from numerous sources that coding a system like this is a pain. Any advice is highly appreciated. Also, if you advice to code it yourself, any experiences on how to do it or if there are any opensource projects (no matter the language, what I'm after is not the code but the structure) that I can benefit from would really mean alot. Thanks in advance for your inputs! :-)

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  • Why is software quality so problematic?

    - by Yuval A
    Even when viewing the subject in the most objective way possible, it is clear that software, as a product, generally suffers from low quality. Take for example a house built from scratch. Usually, the house will function as it is supposed to. It will stand for many years to come, the roof will support heavy weather conditions, the doors and the windows will do their job, the foundations will not collapse even when the house is fully populated. Sure, minor problemsdo occur, like a leaking faucet or a bad paint job, but these are not critical. Software, on the other hand is much more susceptible to suffer from bad quality: unexpected crashes, erroneous behavior, miscellaneous bugs, etc. Sure, there are many software projects and products which show high quality and are very reliable. But lots of software products do not fall in this category. Take into consideration paradigms like TDD which its popularity is on the rise in the past few years. Why is this? Why do people have to fear that their software will not work or crash? (Do you walk into a house fearing its foundations will collapse?) Why is software - subjectively - so full of bugs? Possible reasons: Modern software engineering exists for only a few decades, a small time period compared to other forms of engineering/production. Software is very complicated with layers upon layers of complexity, integrating them all is not trivial. Software development is relatively easy to start with, anyone can write a simple program on his PC, which leads to amateur software leaking into the market. Tight budgets and timeframes do not allow complete and high quality development and extensive testing. How do you explain this issue, and do you see software quality advancing in the near future?

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  • Problems with Aero Glass in Delphi 7 applications

    - by Cralias
    Hi everyone! I'm trying to remake some of my older projects to support Aero Glass. Although it's kinda easy to enable glass frame, I've encountered some major problems. I used this code: var xVer: TOSVersionInfo; hDWM: THandle; DwmIsCompositionEnabled: function(pbEnabled: BOOL): HRESULT; stdcall; DwmExtendFrameIntoClientArea: function(hWnd: HWND; const pxMarInset: PRect): HRESULT; stdcall; bEnabled: BOOL; xFrame: TRect; // ... xVer.dwOSVersionInfoSize := SizeOf(TOSVersionInfo); GetVersionEx(xVer); if xVer.dwMajorVersion >= 6 then begin hDWM := LoadLibrary('dwmapi.dll'); @DwmIsCompositionEnabled := GetProcAddress(hDWM, 'DwmIsCompositionEnabled'); @DwmExtendFrameIntoClientArea := GetProcAddress(hDWM, 'DwmExtendFrameIntoClientArea'); if (@DwmIsCompositionEnabled <> nil) and (@DwmExtendFrameIntoClientArea <> nil) then begin DwmIsCompositionEnabled(@bEnabled); if bEnabled then begin xRect := Rect(-1, -1, -1, -1); DwmExtendFrameIntoClientArea(FrmMain.Handle, @xRect); end; end; FreeLibrary(hDWM); end; So I got the pretty glass window now. Due to black being transparent color now (kinda stupid choice, why couldn't it be pink) anything that is clBlack becomes transparent, too. It means all labels, edits, button texts... even if I set text to some other color at design time, DWM still makes them that color AND transparent. Well, my question would be - whether it's possible to solve this somehow?

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  • Editing a UITextField inside a UITableViewCell fails

    - by Stephen Darlington
    In my application I have a UITextField inside a UITableViewCell. If I click inside the text field and add some text I find that if try to move the insertion point it works the first time but fails on subsequent attempts. I am completely unable to move the selection; no "magnifying glass" appears. Even more curious, this "setting" seems to be permanent until I restart the application. And it affects all UITextFields on that screen and not just the one that I originally tried to edit. If you want to see it yourself, try the "UICatalog" sample that comes with the iPhone SDK. Click "text fields" and then "edit" and play around with the text boxes. I've done a lot of digging on this but it's pretty hard to Google for! The best references I've found are on Apple's support board and MacRumors formum (both reference a solution that apparently used to work on iPhone 2.0 but does work not with contemporary versions -- I did try). My feeling that is that this is a bug in the OS, but I thought I'd throw this out to the SO crowd for a second opinion and to see if there are any workarounds. Any ideas? Following benzado's suggestion, I tried building my application using the 2.0, 2.1 and 2.2 SDKs. I got the same behaviour in all versions. (Actually, something related but not the same broke in 2.2 but that's probably another question!)

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