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  • Feedback from SQLBits 8

    - by Peter Larsson
    This years SQLBits occurred in Brighton. Although I didn’t have the opportunity to attend the full conference, I did a presentation at Saturday. Getting to Brighton was easy. Drove to Copenhagen airport at 0415, flew 0605 and arrived at Gatwick 0735. Then I took the direct train to Brighton and showed up at 0830, just one hour before presenting. This was the easy part. Getting home was much worse. Presentation ended at 1030 and I had to rush to the train station to get back to London, change to tube for Heathrow. Made it at the gate just 15 seconds before closing. That included a half mile run in the airport… Anyway, yesterday I got the feedback for my presentation. It does look good, especially since English is not my first language. This is the first graph Seems to be just halfway between conference average and best session. I can live with that. Second graph shows more detail about attendees voting. It also look acceptable. A wider spread for the 9’s, but it is an inevitable effect from how attendees percept the session. I did get a lot of 8’s and the lower grades in an descending order. The two people voting 4 and 5 didn’t say why they voted this so I don’t know how to remedy this. Third graph is about each category of votes.   Again, I find this acceptable. The Session abstract and Speaker’s knowledge seems to follow attendees expectations compared to conference average. I seem to have met the attendees expectations (and some more) for the other four categories, also compared to conference average. Since this did encourage me, I believe I will present some more at future meetings. I do have a new presentation about something all developers are doing every day but they may not know it. I will also cover this new topic in the next Deep Dives II book. Stay tuned! //Peter

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  • Permutation algorithm without recursion? Java

    - by Andreas Hornig
    Hi, I would like to get all combination of a number without any repetation. Like 0.1.2, 0.2.1, 1.2.0, 1.0.2, 2.0.1, 2.1.0. I tried to find an easy scheme but couldn't find so I drawed a graph/tree for it and this screams to use recursion. But I would like to do it without, if this is possible. So could anyone please help me how to do that? Thank you in advance, Andreas

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  • Permutatation algorithm without recursion? Java

    - by Andreas Hornig
    Hi, I would like to get all combination of a number without any repetation. Like 0.1.2, 0.2.1, 1.2.0, 1.0.2, 2.0.1, 2.1.0. I tried to find an easy scheme but couldn't find so I drawed a graph/tree for it and this screams to use recursion. But I would like to do it without, if this is possible. So could anyone please help mw how to do that? Thank you in advance, Andreas

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  • How to check with program in other programming-language (C,C++, etc) whether JAVA is installed and w

    - by Andreas Hornig
    Hi, I would like to know whether or not JAVA is installed and where (path). Perhaps it sounds strange, but my aim is to let BOINC (coded in C++) check the JAVA installation and then start my JAVA app. But therefore I need to know if BOINC can start JAVA natively, or if I have to also send the JRE and then start my app with this not installed JRE. So is there a way to check the installation first? thank you in advance! Andreas

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  • Silverlight Cream for June 12, 2010 -- #880

    - by Dave Campbell
    In this Issue: Michael Washington, Diego Poza, Viktor Larsson, Brian Noyes, Charles Petzold, Laurent Bugnion, Anjaiah Keesari, David Anson, and Jeremy Likness. From SilverlightCream.com: My MEF Rant Read Michael Washington's discussion about MEF from someone that's got some experience, but not enough to remember the pain points... how it works, and what he'd like to see. Prism 4: What’s new and what’s next Diego Poza Why Office Hub is important for WP7 Viktor Larsson has another WP7 post up and he's talking about the Office Hub ... good description and maybe the first I've seen on the Office Hub. WCF RIA Services Part 1: Getting Started Brian Noyes has part 1 of a 10-part tutorial series on WCF RIA Services up at SilverlightShow. This first is the intro, but it's a good one. CompositionTarget.Rendering and RenderEventArgs Charles Petzold talks about CompositionTarget.Rendering and using it for calculating time span ... and it works in WPF and WP7 too... cool example from his WPF book, and all the code. Two small issues with Windows Phone 7 ApplicationBar buttons (and workaround) Laurent Bugnion has a post up from earlier this week that I missed describing problems with the WP7 ApplicationBar ... oh, and a workaround for it :) Animation in Silverlight Anjaiah Keesari has a really extensive post up on Silverlight animation, and this is an all-XAML thing... so buckle up we're going old-school :) Two fixes for my Silverlight SplitButton/MenuButton implementation - and true WPF support David Anson revisits and revises his SplitButton code based on a couple problem reports he received. Source for the button and the test project is included. Tips and Tricks for INotifyPropertyChanged Jeremy Likness is discussing INotifyPropertyChanged and describes an extension method. He does bring up a problem associated with this, so check that out. He finishes the post off with a discussion of "Observable Enumerables" Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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  • Google Closure Library - Adding non-TreeNode children to a TreeNode

    - by Andreas Jansson
    Hi, I'm using the Google Closure Library and goog.ui.tree in particular to build a tree structure GUI component. It works pretty well out of the box, but I'd like to add a few extra controls to each of the leaves (goog.ui.Checkboxes in particular). The problem is that Component.addChild has been overridden in BaseNode so that each added child is treated as a child tree node as opposed to a child component. In effect plenty of errors are thrown if you try to add anything else than an actual tree node as a child, as these children are traversed and BaseNode-specific functions are called on them. I must admit I'm quite a Closure newb, but I reckon there must be some workaround for this, right? Essentially all I want to do is have a bunch of checkboxes appear next to each leaf in my tree. Thanks, Andreas

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  • ASP.Net MVC 2: How to keep values in the model between posts

    - by Andreas
    I have an edit view that is displaying some model properties as plain text and other model properties as input fields. My problem is that the model properties displayed as plain text are null when the model is returned to the view after a validation error. How do I retain the model values when I don't have input fields for all properties? What is best practice? My first thought is to keep the values of these properties in hidden input elements. <%= Html.HiddenFor(model => model.CustomerName) %> Is this considered a correct solution? Thanks Andreas

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  • When is calculating or variable-reading faster?

    - by Andreas Hornig
    hi, to be honest, I don't really know what the "small green men" in my cpu and compiler do, so I sometimes would like to know :). Currently I would like to know what's faster, so that I can design my code in a more efficient way. So for example I want to calclate something at different points in my sourcecode, when will it be faster to calculate it once and store it in a variable that's read and used for the next points it's needed and when is it faster to calculate it everytime? I think it's depending on how "complex" and "long" the calculation is and how fast then cache is, where variables are stored, but I don't have any clue what's faster :). Thanks for any reply to my tiny but important question! Andreas PS: perhaps it's important to know that I code in JAVA, but it's more a genral question.

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  • Extract / Parse Tags from Mixed Content String

    - by Andreas
    Hello, i want to parse Tags from a mixed Content String. The string goes like this: "<PERSON>yasir arafat</PERSON> , the president of the <LOCATION>palestinian authority</LOCATION> , on the defensive , mr . sharon believes , a government official" I only want to use jaxp. Got anybody an idea for this. May an easy way with Expressions. But i need the Element names as well though. Best Regards Andreas

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  • Can I directly use JAVA-sourcecode directly in SCILAB, or Is there another way to connect both?

    - by Andreas Hornig
    Hi, a friend of mine uses SCILAB for doing his mathematicall "homework" for his studies and he told me, that it should be possible to use JAVA-sourcecode diretly in SCILAB. The background is that I presented my current JAVA project and I would like to plot this in 3d, but I haven't done graphical output so far. And he proposed to let SCILAB do the 3d plotting, because there are some ready to use plot scemes implented. But he couldn't tell me how to achive this, so that's why I'm here :). So my first question is, IF this is possible to directly use JAVA-Source code in SCILAB or at least to some kind of connection between both? And how this is done! :) Thank you in advance, Andreas

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  • Event based scheduling in excel

    - by andreas
    Hey fellas! Where i am working we have a number of contractor programmers. We handle the requirements and the project management of our products. I have been trying using various project timing and estimations techniques but cant get the hang of it yet. I have read Joel's evidence based scheduling and i was wondering if there's anything out there that can help me apply that theory? not looking for complex software but perhaps something in excel? Any help will be appreciated Andreas

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  • Event based PROJECT MANAGEMENT

    - by andreas
    Hey fellas! Where i am working we have a number of contractor programmers. We handle the requirements and the project management of our products. I have been trying using various project timing and estimations techniques but cant get the hang of it yet. I have read Joel's evidence based scheduling and i was wondering if there's anything out there that can help me apply that theory? not looking for complex software but perhaps something in excel? Any help will be appreciated Andreas

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  • Which CEP product to start with?

    - by Andreas
    Hi, I want to learn more on how to build CEP based applications. So I looked around and found several products (overview found here: http://rulecore.com/CEPblog/?page_id=47). But as there are quite a few at the moment, I don't know which is the best to start with. And overall I just would consider the one available for free. The rest is a bit to expensive for just private use ;) Esper is for free, but without Esper studio it seems quite tedious to develop a cep app. Streambase offers a free trial, but I couldn't find out how long you can use this (if only for a month, no that helpful for longer research). Oracle CEP suite seems quite complete, but in the cep scene - as far as I can see - it is the least recognized compared to Esper or Streambase. So do you have any hints on what is the best way to start with cep development? Is it worth to spent time on working through the oracle documenation or is it better to start with Esper or Streambase? Cheers, Andreas

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  • .net MVC RenderPartial renders information that is not in the model

    - by Andreas
    Hi, I have a usercontrol that is rendering a list of items. Each row contains a unique id in a hidden field, a text and a delete button. When clicking on the delete button I use jquery ajax to call the controller method DeleteCA (seen below). DeleteCA returns a new list of items that replaces the old list. [HttpPost] public PartialViewResult DeleteCA(CAsViewModel CAs, Guid CAIdToDelete) { int indexToRemove = CAs.CAList.IndexOf(CAs.CAList.Single(m => m.Id == CAIdToDelete)); CAs.CAList.RemoveAt(indexToRemove); return PartialView("EditorTemplates/CAs", CAs); } I have checked that DeleteCA is really removing the correct item. The modified list of CAs passed to PartialView no longer contains the deleted item. Something weird happens when the partial view is rendered. The number of items in the list is reduced but it is always the last element that is removed from the list. The rendered items does not correspond to the items in the list/model sent to PartialView. In the usercontrol file (ascx) I'm using both Model.CAList and lambda expression m = m.CAList. How is it possible for the usercontrol to render stuff that is not in the model sent to PartialView? Thanx Andreas

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  • How to enable and use HTTP PUT and DELETE with Apache2 and PHP?

    - by Andreas Jansson
    Hi, It should be so simple. I've followed every tutorial and forum I could find, yet I can't get it to work. I simply want to build a RESTful API in PHP on Apache2. In my VirtualHost directive I say: <Directory /> AllowOverride All <Limit GET HEAD POST PUT DELETE OPTIONS> Order Allow,Deny Allow from all </Limit> </Directory> Yet every PUT request I make to the server, I get 405 method not supported. Someone advocated using the Script directive, but since I use mod_php, as opposed to CGI, I don't see why that would work. People mention using WebDAV, but to me that seems like overkill. After all, I don't need DAV locking, a DAV filesystem, etc. All I want to do is pass the request on to a PHP script and handle everything myself. I only want to enable PUT and DELETE for the clean semantics. Thanks, Andreas

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  • Video-codec rater by image comparison algorithm?

    - by Andreas Hornig
    Hi, perhaps anyone knows if this is possible. comparing image quality is almost imposible to describe without subjective influences. When someone rates an image quality as good there is at least one person, that doesn't think so. human preferences are always different. So, I would like to know if there is away to "rate" the image quality by an algorithm that compares the original image to the produced one in following issues colour change(difference pixel by pixel blur rate artifacts and macroblocking the first one would be the easiest one because you could check just the diffeence in colours and can give 3 values in +- of each hex-value both last once I don't know if this is possible, but the blocking could be detected by edge-finding. and the king's quest would be to do that for more then just one image, because video is done with several frames. perhaps you expert programmers could tell me, if such an automated algo can be done to bring some objective measurement divice into rating image quality. this could perhaps calm down some h.264 is better than x264 and better than vp8 and blaaah people :) Andreas 1st posted here http://www.hdtvtotal.com/index.php?name=PNphpBB2&file=viewtopic&p=9705

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  • Sonicwall NSA 240 or Netgear ProSecure UTM 25

    - by Markus Larsson
    Hi! I'm about to buy a new firewall and I’m choosing between a Sonicwall NSA 240 and a Netgear ProSecure UTM 25. I have already done research for which kind of firewall I need and limit it to these two, now I just have to choose between them. But what I don’t know is which one of them is easiest to administrate, which one has the best UI? Any thoughts?

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  • Using Static Public IPs and Private DHCP IPs on the Same Router

    - by Andrew Larsson
    I have a subnet of public IP addresses that my ISP has provided me with. They are routed through my router (how profound) that has a a static IP. I have successfully assigned the IPs from that subnet to various devices on my network. This works just fine, they get their own public IP, they can access the Internet, and the Internet can access them. However, I would like to also assign some private IPs on my network through that same router and put them behind NAT. Is this even possible? Could a VLAN be of use? I would like to avoid putting another router on the network, which makes this is quite an awkward question.

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  • How to repair a damage transaction log file for Exchange 2003

    - by Markus Larsson
    Hi! Yesterday we had a power failure and the UPS did not work (it has worked perfect before). Everything seem to be ok when I started all the servers again except of the mail, when I try to mount the store I get the following message: “The database files in this store are corrupted” Server: Exchange 2003 running on a Small Business Server Latest full backup: one week old Backup program: Backup Exec 9.0 This is what I have done: 1. Copy every file in the MDBDATA folder (edb, stm, log) 2. Run Eseutil /d for priv1.edb 3. Run Eseutil /p for priv1.edb (took seven hours) 4. Run Isintig –fix –test alltests, now it breaks down. Isintig fails with the following error: Isinteg cannot initiate verification process. Please review the log file for more information. The problem is that there is no log file created. 5. Giving up on this route I decide to do a restore from the backup, it fails with the following error: Unable to read the header of logfile E00.log. Error -501, and the error: Information Store (5976) Callback function call ErrESECBRestoreComplete ended with error 0xC80001F5 The log file is damaged. My conclusion is that E00.log is damage, so how can I repair it so that I can restore the database? Or should I give up and try some other route?

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  • Very slow first handshake Apache

    - by Johan Larsson
    Any one having any ideas where should I start to fix this issue, the first handshake take sometimes up to 20s, but refreshes after that takes only 0.9s. The setup, 100/10 Mbps Windows OS 4GB RAM Intel Core 2 @ 3.0 GHz And 7200 RPM HDD Apache 2.4 No SSL Mod_Security Enabled Mod_Deflate Enabled Mod_Expires Enabled Mod_ReWrite Enabled PHP & MySQL on same machine. I have seen much slower machines preforming better, therefor I think my problem is ony an optimization issue.

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  • NVCPL.DLL in RunDLL can't be initiated on startup

    - by Alfred Larsson
    I got a new computer and installed Windows 8. But everytime I start up I get this message: (Couldn't post the images because of my low reputation. But here is what they said) Was in Swedish, translated: RunDLL There was a problem with the start of NVCPL.DLL The initiation of a DLL-file failed I have no idea what it does and how to fix it. I don't know if this will help but I have got some more problems with DLL files. Here is an example: ** QuickTime for Windows** A problem has occurred with the windows-installer package. A DLL-file which is needed for this installation couldn't be used. Contact support or distributor.

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  • Our server hosting provider asked for our root password

    - by Andreas Larsson
    I work at a company that develops and hosts a small business critical system. We have an "Elastic cloud server" from a professional hosting provider. I recently got an email from them saying that they've had some problems with their backup solution and that they needed to install a new kernel. And they wanted us to send them the root password so they could do this work. I know that the email came from them. It's not [email protected] or anything like that. I called them and asked them about this, and they were like "yep, we need the password to do this". It just seems odd to send the root password over email like this. Do I have any reason to be concerned?

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  • Script to embed image and CSS data in HTML files

    - by andreas-h
    I have a HTML page which references external stylesheets and shows some images. I'm looking for an easy way to include all referenced external resources in the HTML file directly, so that it doesn't have any external references any more. (Images should be included in the HTML file using the <img src="data:image/jpg;base64,[...] method). EDIT: I want to do this so that my web proxy can deliver a nice-looking error page if the backend is down, so I have to assume all my webservers cannot deliver the static content which would normally be linked to from my websites (CSS, images).

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