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• Using Tweet# to pull 5 most recent updates from a user

  - by Richard West

  I am working on a method that will allow me to pull in the 5 most recent posts that my company has made on it's Twitter account. One requirement of this web application is that it present these twitter posts as "regular" html in our website, so using the Twitter javascript method is ruled out. I have found Tweet#, a C# plugin that exposes the Twitter commands. This seems to be a nice way to pull this information but I have a question. I would like to be able to pull these updates from Twitter without authenticating to Twitter. Since the information is publically available I would think this would be fairly simple, however I'm having a problem with Tweet# wanting to do this. The cloest I have found to be able to do this requires my to login/authenticate with Twitter and then pull the 5 most recent tweets. Like this: var twitter = FluentTwitter.CreateRequest() .AuthenticateAs("UserName", "p@ssw0rd") .Configuration.CacheForInactivityOf(60.Seconds()) .Statuses().OnUserTimeline().Take(5).AsJson(); What I need is something that will allow my to specific the user id to pull the most recent 5 tweets from without authentication.

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• Resources related to data-mining and gaming on social networks

  - by darren

  Hi all I'm interested in the problem of patterning mining among players of social networking games. For example detecting cheaters of a game, given a company's user database. So far I have been following the usual recipe for a data mining project: construct a data warehouse that aggregates significant information select a classifier, and train it with a subsectio of records from the warehouse validate classifier with another test set lather, rinse, repeat Surprisingly, I've found very little in this area regarding literature, best practices, etc. I am hoping to crowdsource the information gathering problem here. Specifically what I'm looking for: What classifiers have worked will for this type of pattern mining (it seems highly temporal, users playing games, users receiving rewards, users transferring prizes etc). Are there any highly agreed upon attributes specific to social networking / gaming data? What is a practical amount of information that should be considered? One problem I've run into is data overload, where queries and data cleansing may take days to complete. Related to point above, what hardware resources are required to produce results? I've found it difficult to estimate the amount of computing power I will require for production use. It has become apparent that a white box in the corner does not have enough horse-power for such a project. Are companies generally resorting to cloud solutions? Are they buying clusters? Basically, any resources (theoretical, academic, or practical) about implementing a social networking / gaming pattern-mining program would be very much appreciated. Thanks.

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• How do you use asynchronous ORMs without huge callback chains?

  - by hornairs

  I'm using the relatively immature Joose Javascript ORM plugin (project page) to persist objects in an Appcelerator Titanium (company page) mobile project. Since it's client side storage, the application has to check to see if the database is initialized before starting up the ORM since it inspects the DB tables to construct the classes. My problem is that this sequence of operations (and if this one is like this, other things down the road) takes a lot of callbacks to complete. I have a lot of jumping around in the code that isn't apparent to a maintainer and results in some complex call graphs and whatnot. So, I ask these questions: How would you asynchronously initialize a database and populate it with seed data using an ORM that needs the schema to be correct to function? Do you have any general strategies or links for async/event driven programming and keeping the call graph simple and understandable? Do you have any suggestions for Javascript ORMs/meta object systems that work with HTML 5 as a storage engine and are hopefully framework agnostic? Am I just a big newb and should be able to work this out with ease? Thanks folks!

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• Subscription Management with Merchant Account via API

  - by Josh

  I'm researching gateways/vendors that provide the ability to create subscription based transitions for merchant accounts. In other words, I want to allow customers to signup for a subscription for a website service that charges once a month. Authorize.Net has an ARB (Automated Recurring Billing) Module. The cost is cheap, $10 a month for the service, with unlimited subscriptions, and they have an API that allows XML or SOAP access to create, update and cancel. The LARGE negative of the service is that it doesn't have elegant way to obtain the current status of a subscription. They can send a daily email with an attached CSV file, or someone can login into the site and review statuses – neither is an enterprise solution. The parent company "CyberSource" has a "Recurring Billing Service" which implies a more robust solution, including API access to subscription information. I’m currently waiting for a sales call back on costs related to the service. I also looked at PayPal's Recurring Billing Service, but that appears to require that users are redirected to the PayPal site to signup for the subscription -- again, not an an elegant solution. Does anyone know of any other vendors/gateways that offer subscription service, that meet the following criteria: Vendor/Gateway must host the credit card number and be PCI compliant Have an API that accessible via a Web Service, Post over HTTPS or SOAP Have an API that allows querying the status of subscriptions and/or the ability to query for activity since a certain date. Thanks in advance for your suggestions.

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• What are best practices for collecting, maintaining and ensuring accuracy of a huge data set?

  - by Kyle West

  I am posing this question looking for practical advice on how to design a system. Sites like amazon.com and pandora have and maintain huge data sets to run their core business. For example, amazon (and every other major e-commerce site) has millions of products for sale, images of those products, pricing, specifications, etc. etc. etc. Ignoring the data coming in from 3rd party sellers and the user generated content all that "stuff" had to come from somewhere and is maintained by someone. It's also incredibly detailed and accurate. How? How do they do it? Is there just an army of data-entry clerks or have they devised systems to handle the grunt work? My company is in a similar situation. We maintain a huge (10-of-millions of records) catalog of automotive parts and the cars they fit. We've been at it for a while now and have come up with a number of programs and processes to keep our catalog growing and accurate; however, it seems like to grow the catalog to x items we need to grow the team to y. I need to figure some ways to increase the efficiency of the data team and hopefully I can learn from the work of others. Any suggestions are appreciated, more though would be links to content I could spend some serious time reading. THANKS! Kyle

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• Trying to Create an Enterprise Provisioning Profile--Distribution Tab is Missing

  - by El' Jocko

  I'm attempting to create an Enterprise Provisioning Profile, but the program portal isn't working the way I expect it to (based on the documentation). Here's what I'm seeing: First, I log on as the Team Agent. Second, I navigate to the Provisioning section of the program portal. According to the documentation, I should see 4 tabs at this point: Development, Distribution, History, How To. But when I do this, the Distribution tab isn't there. And without the Distribution tab, I can't create a Enterprise Provisioning Profile (or an Ad Hoc one, for that matter). I've tried contacting Apple administrative support, but they weren't able to provide any help with this. They suggested that I try the forum. :-) Just to fill in a few more details: My company has an enterprise membership in the developer program. And when I navigate to the Certificates section, there is a Distribution tab. I figure that there must be something that I've done incorrectly. Has anyone had a similar experience? Any suggestions on what to try next?

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• XML deserialization doubling up on entities

  - by Nathan Loding

  I have an XML file that I am attempting to deserialize into it's respective objects. It works great on most of these objects, except for one item that is being doubled up on. Here's the relevant portion of the XML: <Clients> <Client Name="My Company" SiteID="1" GUID="xxx-xxx-xxx-xxx"> <Reports> <Report Name="First Report" Path="/Custom/FirstReport"> <Generate>true</Generate> </Report> </Reports> </Client> </Clients> "Clients" is a List<Client> object. Each Client object has a List<Report> object within it. The issue is that when this XML is deserialized, the List<Report> object has a count of 2 -- the "First Report" Report object is in there twice. Why? Here's the C#: public class Client { [System.Xml.Serialization.XmlArray("Reports"), System.Xml.Serialization.XmlArrayItem(typeof(Report))] public List<Report> Reports; } public class Report { [System.Xml.Serialization.XmlAttribute("Name")] public string Name; public bool Generate; [System.Xml.Serialization.XmlAttribute("Path")] public string Path; } class Program { static void Main(string[] args) { List<Client> _clients = new List<Client>(); string xmlFile = "myxmlfile.xml"; System.Xml.Serialization.XmlSerializer xmlSerializer = new System.Xml.Serialization.XmlSerializer(typeof(List<Client>), new System.Xml.Serialization.XmlRootAttribute("Clients")); using (FileStream stream = new FileStream(xmlFile, FileMode.Open)) { _clients = xmlSerializer.Deserialize(stream) as List<Client>; } foreach(Client _client in _clients) { Console.WriteLine("Count: " + _client.Reports.Count); // This write "2" foreach(Report _report in _client.Reports) { Console.WriteLine("Name: " + _report.Name); // Writes "First Report" twice } } } }

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• Determine whether .NET assemblies were built from the same source

  - by Clayton

  Does anyone know of a way to compare two .NET assemblies to determine whether they were built from the "same" source files? I am aware that there are some differencing utilities available, such as the plugin for Reflector, but I am not interested in viewing differences in a GUI, I just want an automated way to compare a collection of binaries to see whether they were built from the same (or equivalent) source files. I understand that multiple different source files could produce the same IL, and realise that the process would only be sensitive to differences in the IL, not the original source. The main obstacle to just comparing the byte streams for the two assemblies is that .NET includes a field called "MVID" (Module Version Identifier) the assembly. This appears to have a different value for every compilation, so if you build the same code twice the assembly will be different. A related question is, does anyone know how to force the MVID to be the same for each compilation? This would avoid us needing to have a comparison process that is insensitive to differences in the value of the MVID. A consistent MVID would be preferable, as this means that standard checksums could be used. The background behind this is that a third-party company is responsible for independently reviewing and signing off our releases, prior to us being permitted to release to Production. This includes reviewing the source code. They want to independently confirm that the source code we give them matches the binaries that we earlier built, tested and currently plan to deploy. We are looking for a process that allows them to independently build the system from the source we supply them with, and the compare the checksums against the checksums for the binaries we have tested. thanks

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• Contact-to-hire from the perspective of the headhunter agency?

  - by jamieb

  I operate a small IT consulting firm. One of my clients has expressed an interest in having an ASP.Net programmer on-site at their location for a six-month contract, with an option to hire. I've never really operated my company as a body shop (renting out talent for the long term) and an unfamiliar with how to price my quote. Assume I were to bring on a new developer as a 1099'ed contractor and then contract that person out to my client for the duration of the project. If I'm billing my client $X per hour for this developer's time, what should I be compensating this developer? $X/2 per hour? What's the typical ratio? If the client decides to hire this person at the end of the contract, what should I be compensated? Is it a flat finders fee, or maybe a function of the developer's annual salary? Would there be any advantage to actually hiring the person as a 1040'd employee rather than a 1099 contractor even if I can't offer him benefits? I know other body shops (like Robert Half) do this and never understood why.

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• Can you review my Perl rewrite of Cucumber?

  - by Evgeny

  There is a team working on acceptance testing X11 GUI application in our company, and they created a monstrous acceptance testing framework that drives the GUI as well as running scenarios. The framework is written using Perl 5, and scenario files look more like very complex Perl programs (thousands of lines long with procedural-programming style) than acceptance tests. I recently learned Ruby's Cucumber, and generally have been using Ruby for quite a lot of time. But unfortunately I can't just shove Ruby to replace Perl because the people who are writing all of this don't know Ruby and it's quite certain that they wont want "this" kind of interruption. So to bring Ruby's Cucumber a bit closer to their work, I rewrote it using Perl 5. Unfortunately I am really not a Perl programmer, and would love to get a code review and to hear suggestions from people who both know Perl and Cucumber. Hi Perl/Cucumber StackOverflow users - please help me create this "open source" attempt to re-create Cucumber for Perl! I would love to hear your comments and will accept any acceptable help. The minimal source code is here: http://github.com/kesor/p5-cucumber Thank you for your attention. For those not familiar with cucumber - please take just one small moment to take a look at this one small little page: http://wiki.github.com/aslakhellesoy/cucumber

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• Unable to run WCAT against DotNetNuke with NTLM authentication

  - by David Neale

  I have a ubr file setup to stress test an internal DotNetNuke site with WCAT: transaction { id = "Intranet Home Page"; weight = 1000; cookies{clear = true;} sleep{delay = rand("1","500");} request { url = "/"; statuscode = 401; } request { url = "/"; authentication = ntlm; username = "mydomain\\accountname"; password = "password"; statuscode = 200; } close{ method = reset;} } When running this (wcat.wsf -run -clients localhost -s myserver -t test.ubr -f settings.ubr -x) I simply get lots of error 500s: 2010-03-08 10:29:31 192.168.11.239 GET / - 80 - 192.168.52.139 - 401 2 2148074254 2010-03-08 10:29:31 192.168.11.239 GET / - 80 - 192.168.52.139 - 401 1 0 2010-03-08 10:29:31 192.168.11.239 GET /Default.aspx - 80 mydomain\myaccount 192.168.52.139 - 500 0 0 DNN is reporting these errors as: AssemblyVersion: 5.2.3 PortalID: 0 PortalName: My Company UserID: -1 UserName: ActiveTabID: 39 ActiveTabName: Home RawURL: /Default.aspx AbsoluteURL: /Default.aspx AbsoluteURLReferrer: UserAgent: DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider ExceptionGUID: 28d8821f-1ef2-41db-8a65-d33e97a69130 InnerException: *Unhandled Error:* FileName: FileLineNumber: 0 FileColumnNumber: 0 Method: DotNetNuke.Authentication.ActiveDirectory.HttpModules.AuthenticationModule.OnAuthenticateRequest StackTrace: Message: System.Exception: Unhandled Error: --- System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Authentication.ActiveDirectory.HttpModules.AuthenticationModule.OnAuthenticateRequest(Object s, EventArgs e) at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) --- End of inner exception stack trace --- Source: Server Name: MYSERVER It seems to be losing the username somehow.

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• Need Advice on building the database. all in one table or split?

  - by Ibrahim Azhar Armar

  hello, i am developing an application for a real-estate company. the problem i am facing is about implementing the database. however i am just confused on which way to adopt i would appreciate if you could help me out in reasoning the database implementation. here is my situation. a) i have to store the property details in the database. b) the properties have approximately 4-5 categories to which it will belong for ex : resedential, commnercial, industrial etc. c) now the categories have sub-categories. for example. a residential category will have sub category such as. Apartment / Independent House / Villa / Farm House/ Studio Apartment etc. and hence same way commercial and industrial or agricultural will too have sub-categories. d) each sub-categories will have to store the different values. like a resident will have features like Bedrooms/ kitchens / Hall / bathroom etc. the features depends on the sub categories. for an example on how i would want to implement my application you can have a look at this site. http://www.magicbricks.com/bricks/postProperty.html i could possibly think of the solution like this. a) create four to five tables depending upon the categories which will be existing(the problem is categories might increase in the future). b) create different tables for all the features, location, price, description and merge the common property table into one. for example all the property will have the common entity such as location, total area, etc. what would you advice for me given the current situation. thank you

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• JMS equivalent in .Net

  - by rauts

  Hi All, I am trying to make an common abstract interface over the messaging infrastructure in our company. The design goal is to 2 fold. 1 is to hide the complexity of programming from the developers (i know its not very complex but still simplify it further) and 2 is to make the developers independent of the vendor specific messaging infrastructure (i.e. it can be MQSeries or EMS or MSMQ). The very common option is using the WCF layer over the messaging infrastructure. Use the MQSeries Custom channel for WCF or use EMS custom channle for WCF. But both are ruled out due to lack of proper version of MQSeries and EMS. Can someone please suggest what are the possible solutions to this problem. One which i can think of the to have a custom wrapper like JMS. Has anyone ever tried something similar before. Any help would be fantastic. by the way, i am trying to create this wrapper in C# 3.5. Regards

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• Internet Explorer 7 Bugs - incorrect display OR dead links

  - by ClarkeyBoy

  Hi, I recently launched a website I have been developing over the past year - http://Live.heritageartpapers.co.uk/. My dad, who owns the company, had a phone call today saying it doesnt display properly in IE7. Bug #1: The header and footer are both in a div, whereas the content is in a table between the two divs. Reportedly the content (table) sometimes (not always, according to IETester) displays below the footer, but the footer still displays where it is supposed to (ie there is a massive gap where the content should fit). Bug #2: When the content does display in the correct place, all the links on the page are dead - click on them and nothing happens. As you can see if you view it in Firefox (the version I am using is 3.6), the links in the left hand menu turn orange on mouseover. However they do not even do this in IE7. Note that they do turn orange and do work if the content is displayed below the footer. I cant see why its happening - according to IETester, the IE7 interpreted source code has all the tags capitalised and many quotes removed (for example for the id attribute on most, if not all, tags) but I doubt this could cause the above bugs, could it? My question is whether anyone has ever seen any of these problems before, and/or has a solution to any of these problems?? I currently do not have the application open, but will post any relevant code in a few minutes. Alternatively just use view source. Many thanks in advance. Regards, Richard Clarke

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• Simulating aspects of static-typing in a duck-typed language

  - by Mike

  In my current job I'm building a suite of Perl scripts that depend heavily on objects. (using Perl's bless() on a Hash to get as close to OO as possible) Now, for lack of a better way of putting this, most programmers at my company aren't very smart. Worse, they don't like reading documentation and seem to have a problem understanding other people's code. Cowboy coding is the game here. Whenever they encounter a problem and try to fix it, they come up with a horrendous solution that actually solves nothing and usually makes it worse. This results in me, frankly, not trusting them with code written in duck typed language. As an example, I see too many problems with them not getting an explicit error for misusing objects. For instance, if type A has member foo, and they do something like, instance->goo, they aren't going to see the problem immediately. It will return a null/undefined value, and they will probably waste an hour finding the cause. Then end up changing something else because they didn't properly identify the original problem. So I'm brainstorming for a way to keep my scripting language (its rapid development is an advantage) but give an explicit error message when an an object isn't used properly. I realize that since there isn't a compile stage or static typing, the error will have to be at run time. I'm fine with this, so long as the user gets a very explicit notice saying "this object doesn't have X" As part of my solution, I don't want it to be required that they check if a method/variable exists before trying to use it. Even though my work is in Perl, I think this can be language agnostic.

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• Javascript/CSS rollover menus are patented and subject to licensing?

  - by Scott B

  Very interesting finding that a client brought to my attention today regarding javascript style rollover menus. They got a call from their legal dept that they need to change the manner in which their rollover menu is activated (at the risk of having to pay license to continue using the navigation technique). Its no April fools joke, apparently this is really happening. Apparently a company named Webvention LLC has obtained enforcement rights to a patent, U.S. Patent No. 5,251,294 - "Accessing, assembling, and using bodies of Information." A menu link, that when rolled over, expands to show a list of categorized, related links. Dropdown menus and slide-out menus are examples of this patented navigational methodology. A key component of this patent is that the dropdown/slide-out action must be initiated by a rollover or mouseover event. If the dropdown/slide-out action is initiated by any other event, such as a mouse-click event, then this behavior is not in violation of the patent. Anyone ever heard of this or know of the validity of its claims? Website is here: http://www.webventionllc.com/

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• CSS Div Width Problem - Lining divs... widths seem to be off in IE7

  - by jlrolin

  So far, I'm doing this programmatically using VB.net/ASP.net: 'Create Container Div Dim ContainerDiv As New HtmlGenericControl("div") ContainerDiv.Style("width") = "100%" ContainerDiv.Style("clear") = "both" ContainerDiv.Style("text-align") = "left" ContainerDiv.Style("margin") = "0" 'Create Expand/Collapse Image Dim img As New Image img.ImageUrl = Page.ResolveUrl("~/images/minus99.jpg") img.Attributes.Add("onclick", "change(this.parent);") 'Create Company Display Dim lbl As New Label lbl.Text = Parsetext(pc.NAME) lbl.Font.Bold = True lbl.Style("font-size") = "16px" Dim NameDiv As New HtmlGenericControl("div") 'NameDiv.Style("background-color") = "#F0D3D3" NameDiv.Style("width") = "375px" NameDiv.Style("float") = "left" NameDiv.Style("margin") = "0" NameDiv.Style("display") = "block" NameDiv.Controls.Add(img) NameDiv.Controls.Add(lbl) ContainerDiv.Controls.Add(NameDiv) Dim SetupDiv As New HtmlGenericControl("div") SetupDiv.Style("background-color") = "#F0D3D3" SetupDiv.Style("width") = "210px" SetupDiv.Style("float") = "left" SetupDiv.Style("margin") = "0" SetupDiv.Style("display") = "block" 'SetupDiv.Style("position") = "fixed" ContainerDiv.Controls.Add(SetupDiv) Dim UsedDiv As New HtmlGenericControl("div") UsedDiv.Style("background-color") = "#CFF5CE" UsedDiv.Style("width") = "140px" UsedDiv.Style("float") = "left" UsedDiv.Style("margin") = "0" UsedDiv.Style("display") = "block" 'UsedDiv.Style("position") = "fixed" ContainerDiv.Controls.Add(UsedDiv) Dim RemDiv As New HtmlGenericControl("div") RemDiv.Style("background-color") = "#BEE0F7" 'RemDiv.Style("position") = "absolute" RemDiv.Style("width") = "210px" RemDiv.Style("float") = "right" RemDiv.Style("padding") = "0" RemDiv.Style("margin") = "0" RemDiv.Style("display") = "block" 'RemDiv.Style("position") = "fixed" ContainerDiv.Controls.Add(RemDiv) This should give me four DIVS inside a container DIV. Here's what it's coming out as: The correct blocks above the non-inline blocks are from a table with the same exact widths as the ones I'm using on the Divs. There isn't any CSS adding pixels to them, I don't think. I need to line these up, and I can't figure out where my problem is here. Any help would be appreciated.

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• cryptic error message: Length of Bind host variable exceeds MaxLength

  - by janetsmith

  Hi, I've encountered a cryptic error message thrown by Sybase IQ server. com.sybase.jdbc2.jdbc.SybSQLException: ASA Error -1001019: Function not supported on varchars longer than 255 Length of Bind host variable exceeds MaxLength , -- (df_Heap.cxx 2145) at com.sybase.jdbc2.tds.Tds.processEed(Tds.java:2636) at com.sybase.jdbc2.tds.Tds.nextResult(Tds.java:1996) at com.sybase.jdbc2.jdbc.ResultGetter.nextResult(ResultGetter.java:69) at com.sybase.jdbc2.jdbc.SybStatement.nextResult(SybStatement.java:204) at com.sybase.jdbc2.jdbc.SybStatement.nextResult(SybStatement.java:187) at com.sybase.jdbc2.jdbc.SybStatement.updateLoop(SybStatement.java:1642) at com.sybase.jdbc2.jdbc.SybStatement.executeUpdate(SybStatement.java:1625) at com.sybase.jdbc2.jdbc.SybPreparedStatement.executeUpdate(SybPreparedStatement.java:91) at ibs.dao.CM3RM1DAO.updateToTable(CM3RM1DAO.java:197) at ibs.dao.CM3RM1DAO.isXMLProcessed(CM3RM1DAO.java:88) at ibs.xml.parser.XMLParser.parsingXMLIntoBO(XMLParser.java:2125) at ibs.common.util.MainClass.main(MainClass.java:74) We have several columns (DESCRIPTION etc.) which are of type varchar(4000). However I can update them directly without having any error. And, I don't see any code specifying any bind variables, so I have no idea where the message comes from. This is the code (I've modified it a bit): String sql = "UPDATE TABLEX SET " + "COMPANY = ?, CUSTOMER_REFERENCE= ?, " + "STATUS = ?, CONTACT_FIRST_NAME = ?, CONTACT_LAST_NAME = ?, " + "SEVERITY = ?, PRIORITY_CODE = ?, REQUESTEDDATE = ?, " + "CLOSE_TIME = ?, LEAD_TIME = ?, CHANGE_REASON = ?, MODTIME = ? WHERE NUMBER = ?"; stmt = conn.prepareStatement(sql); for loop here { stmt.setString(...); . . stmt.executeUpdate(); } Any help is appreciated

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• Emphasized text in docbook, fo, pdf out put.

  - by Mica

  I am trying to emphasize a character of some static text to render into the footer of my pdf, but can't figure out the right combination of tags in my xsl. How can I accomplish this? Example: <!-- Footer content --> <xsl:template name="footer.content"> <xsl:param name="pageclass" select="''"/> <xsl:param name="sequence" select="''"/> <xsl:param name="position" select="''"/> <xsl:param name="gentext-key" select="''"/> <fo:block> <xsl:choose> ... <xsl:when test="$sequence = 'odd' and $position = 'left'"> <xsl:text>&#x00A9;<emphasis>My</emphasis>Company</xsl:text> </xsl:when> ... </xsl:choose> </fo:block> </xsl:template> This example generates an error in xsltproc. Help!

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• Database structure and source control - best practice

  - by Paddy

  Background I came from several years working in a company where all the database objects were stored in source control, one file per object. We had a list of all the objects that was maintained when new items were added (to allow us to have scripts run in order and handle dependencies) and a VB script that ran to create one big script for running against the database. All the tables were 'create if not exists' and all the SP's etc. were drop and recreate. Up to the present and I am now working in a place where the database is the master and there is no source control for DB objects, but we do use redgate's tools for updating our production database (SQL compare), which is very handy, and requires little work. Question How do you handle your DB objects? I like to have them under source control (and, as we're using GIT, I'd like to be able to handle merge conflicts in the scripts, rather than the DB), but I'm going to be pressed to get past the ease of using SQL compare to update the database. I don't really want to have us updating scripts in GIT and then using SQL compare to update the production database from our DEV DB, as I'd rather have 'one version of the truth', but I don't really want to get into re-writing a custom bit of software to bundle the whole lot of scripts together. I think that visual studio database edition may do something similar to this, but I'm not sure if we will have the budget for it. I'm sure that this has been asked to death, but I can't find anything that seems to quite have the answer I'm looking for. Similar to this, but not quite the same: http://stackoverflow.com/questions/340614/what-are-the-best-practices-for-database-scripts-under-code-control

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• How to add a badge to the system generated "More" UITabBarItem

  - by Mark Hoffman

  My app has 6 menu items, so the OS shows the first 4, then shows a "More" item that links to a screen where the user can select the other two. My problem is that I want to show a badge on the More item so that the user knows that one of the menu items that is hidden needs their attention. (It's clear to our users which hidden item the badge represents since one of the hidden items is Settings and the other is current Uploads) I don't know how to access the "More" item since the "items" array on UITabBar only contains the 6 actual UITabBarItems that I've created; it doesn't include the system generated "More" item. I've tried setting the badge on one of the hidden UITabBarItems, but no badge is ever displayed. I didn't find much on Google, which makes me wonder if I'm going about this completely wrong. The iTunes app does the same thing when you download items. They display a More item and attach a badge to it, so I figured I was in good company, but I'll be damned if I see how they did that. (Unless they manually created a UITabBarSystemItemMore item and manually handled displaying the other menu items. Ugh.)

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• Why is TransactionScope operation is not valid?

  - by Cragly

  I have a routine which uses a recursive loop to insert items into a SQL Server 2005 database The first call which initiates the loop is enclosed within a transaction using TransactionScope. When I first call ProcessItem the myItem data gets inserted into the database as expected. However when ProcessItem is called from either ProcessItemLinks or ProcessItemComments I get the following error. “The operation is not valid for the state of the transaction” I am running this in debug with VS 2008 on Windows 7 and have the MSDTC running to enable distributed transactions. The code below isn’t my production code but is set out exactly the same. The AddItemToDatabase is a method on a class I cannot modify and uses a standard ExecuteNonQuery() which creates a connection then closes and disposes once completed. I have looked at other posting on here and the internet and still cannot resolve this issue. Any help would be much appreciated. using (TransactionScope processItem = new TransactionScope()) { foreach (Item myItem in itemsList) { ProcessItem(myItem); } processItem.Complete(); } private void ProcessItem(Item myItem) { AddItemToDatabase(myItem); ProcessItemLinks(myItem); ProcessItemComments(myItem); } private void ProcessItemLinks(Item myItem) { foreach (Item link in myItem.Links) { ProcessItem(link); } } private void ProcessItemComments(Item myItem) { foreach (Item comment in myItem.Comments) { ProcessItem(comment); } } Here is top part of the stack trace. Unfortunatly I cant show the build up to this point as its company sensative information which I can not disclose. Hope this is enough information. at System.Transactions.TransactionState.EnlistPromotableSinglePhase(InternalTransaction tx, IPromotableSinglePhaseNotification promotableSinglePhaseNotification, Transaction atomicTransaction) at System.Transactions.Transaction.EnlistPromotableSinglePhase(IPromotableSinglePhaseNotification promotableSinglePhaseNotification) at System.Data.SqlClient.SqlInternalConnection.EnlistNonNull(Transaction tx) at System.Data.SqlClient.SqlInternalConnection.Enlist(Transaction tx) at System.Data.SqlClient.SqlInternalConnectionTds.Activate(Transaction transaction) at System.Data.ProviderBase.DbConnectionInternal.ActivateConnection(Transaction transaction) at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open()

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• Why do Asp.net timers/updatepanels leak memory and can it be fixed/worked around?

  - by KallDrexx

  I have built a suite of internal websites for our company to manage some of our processes. I have been noticing that these pages have massive memory leaks that cause the pages to be using well over 150mb of memory, which is ridiculous for a webpage that consists of a single form and a GridView that is displaying 7-10 rows of data at a time, sometimes with the data not changing for a whole day. This data does need to be refreshed on a semi-regular basis so that we always see the latest results and can act on them. After some testing it appears that the memory leak is extremely easy to reproduce, and very noticeable. I created a page with the following asp.net markup: <body> <form id="form1" runat="server"> <div> <asp:scriptmanager ID="Scriptmanager1" runat="server"></asp:scriptmanager> <asp:Timer ID="timer1" runat="server" Interval="1000" /> <asp:UpdatePanel ID="UpdatePanel1" runat="server"> <ContentTemplate> </ContentTemplate> </asp:UpdatePanel> </div> </form> </body> There is absolutely no code behind for this. This is the entirety of the page. Running this site in Chrome shows the memory usage shoot up to 25 megs in the span of 20-30 seconds. Leaving it running for a few minutes makes the memory go up to the 70 megs and such. Am I using timers and update panels wrong, or is this a pure Asp.net issue with no work around?

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• Source Control Manager Backend

  - by Gabriel Parenza

  Hi Friends, What do you think is a better approach for Source Control Manager Backend. I am weighing File system vs Hosted Subversion service. Hosted Subversion-- (My company already has another group taking care of this) Advantages: * Zero maintenance on our end * Auto-backup and recovery * Reliability by auto-backup and file redundancy. * File history view in built, file merge, file diff On the other hand, while File system does not have the featured mentioned above but is much more simpler. Moreover, if files are hosted on Linux machine, which is backed up, it takes care of file system crash issues. Subversion will need working copies, which are going to be on this same Linux machine, and hence the need to not have an extra layer. Folks, I am looking for stronger reasons why I should take Subversion instead of keeping thing simple and going with File System. Let me know your opinions. Very thanks in advance, Gabriel. PS: I have explored few Commercial Source Manager, and have decide to go this route as it better suits our need.

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• .NET Test Harness what should it have

  - by Conor

  Hi Folks, We have a software house developing code for us on a project, .NET Web Service (WCF) and we are also paying for a test harness to be built as a separate billable task on a daily rate. I have just joined the company and am reviewing what we are getting from the software house and wanted to know what you guys in industry thought about it? Basically what we got was a WinForm that called the w/s that had an input area (Web Service Request) to drop our XML a Submit button along with a response area for the result of the Web Response and that's it... Our internal BA has created all the xml request documents so there was no logic put into the harness around this. Looking on the Net for a definition of a Test Harness I got this: http://en.wikipedia.org/wiki/Test_harness It states it should have these 3 below things: Automate the testing process. Execute test suites of test cases. Generate associated test reports. Clearly we have got none of this apart from a partial "Automate the testing process" via a WinForm. OK, from my development background I would expect someone to Produce a WinForm as a test harness 5 years ago and really should be using some sort of Tooling around this, I explicitly told the Software House I expected some sort of tooling (NUnit,NBUnit, SOAPIU) so we could create a regression test pack for future use. [Didn’t get it but I asked for this after the requirements were signed off as I wasn’t employed then :)] Would someone be able to clarify with me if my requirement for this is over realistic, I know if I did this, I would use NUnit and TDD and then reuse the test harness as a regression test pack in future? I am interested to see what the community thought. Cheers

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