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• Microsoft SQL Server 2005 - using the modulo operator

  - by cc0

  So I have a silly problem, I have not used much SQL Server before, or any SQL for that matter. I basically have a minor mathematical problem that I need solved, and I thought modulo would be good. I have a number of dates in the database, but I need them be rounded off to the closest [dynamic integer] (could be anything from 0 to 5000000) which will be input as a parameter each time this query is called. So I thought I'd use modulo to find the remainder, then subtract that remainder from the date. If there is a better way, or an integrated function, please let me know! What would be the syntax for that? I've tried a lot of things, but I keep getting error messages like integers/floats/decimals can't be used with the modulo operators. I tried casting to all kinds of numeric datatypes. Any help would be appreciated.

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• Enabling PostgreSQL support in PHP on Mac OS X

  - by Jordan Scales

  I'm having a terribly difficult time getting the command "pg_connect()" to work properly on my Mac. I'm currently writing a PHP script (to be executed from console) to read a PostgreSQL database and email a report. I've gone into my php.ini file and added extension=pgsql.so But, I'm met with the following error. PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/extensions/no-debug-non-zts-20090626/php_pgsql.so' - dlopen(/usr/lib/php/extensions/no-debug-non-zts-20090626/php_pgsql.so, 9): image not found in Unknown on line 0 PHP Fatal error: Call to undefined function pg_connect() in... (blah file here) When running phpinfo(), I see nothing about PostgreSQL, so what is my issue here?

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• How to track my flash video player embed on other sites

  - by Dragomir Dan

  Setup: an online tv channel with "youtube" like clips and categories our own flash video player which can be embeded into other remote sites as2 flash player Goal: To track who's embeding my videos, at least with basic statistics per domain. Since it's AS2, it's harder to do this. My ideea is that I can create a php page which should be opened each time the player loads on any website; than the flash player can do a "geturl" of the php file which has Google Analytics code or some other decent tracker. The geturl command could contain a variable like the Video Title which already is included in the player; and this title would pass on with GET to the php file and setup a dynamic page title which can be tracked very well. Problem: how to i use the GETURL function without have user's browser open a new tab or window. Is there any hidden way to do it?

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• what is the global.asax Application_Start equivalent when using WAS in IIS7

  - by Mike Tours

  Hi I'd like to use the netTcpBinding for my WCF application which is currently hosted in IIS7, which means configuring it to use WAS instead. This is fairly straight forward however, my application previously made use of the Application_Start event in the global.asax file. I do not require access to the httpContext(which I understand access has been removed in IIS7), however I would still like to hook into the start or init methods? Does an equivalent exist when hosting an application in WAS as apposed to IIS7? Using classic mode is not an option(again I'm not interested in the httpcontext and this only appears to work if using an http binding) - and I've seen an example of putting a static class instide the app_code folder which looks like a horrible hack.

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• How do I plot the warping of DTW result using gnuplot?

  - by Ekkmanz

  Hello, Right now I have implemented Dynamic Time Warping algorithm for warping two 3D trajectories. Currently, gnuplot is my plotting tool of choice and it works fine when I plot multiple trajectories at a time. However, when I implement DTW one of the real use for plotting tool is to visualize the point warping, like this picture. Currently, the output of my DTW program is two time series in CSV files and another CSV file which indicate the warp (X in series 1 - Y in series 2). Is there any possible way to do that in gnuplot?

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• WPF UserControls - setting the .Command property on button inside UserControl

  - by Judah Himango

  I've got a UserControl that contains a button and some other controls: <UserControl> <StackPanel> <Button x:Name="button" /> ... </StackPanel> </UserControl> When I create a new instance of that control, I want to get at the Button's Command property: <my:GreatUserControl TheButton.Command="{Binding SomeCommandHere}"> </my:GreatUserControl> Of course, the "TheButton.Command" thing doesn't work. So my question is: Using XAML, how can I set the .Command property of the button inside my user control?

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• How to add a hyperlink column in an UltraWebgrid that will redirect me to a popup window

  - by Sunitha

  Hi, I am pretty new to Infragistics controls and finding it hard to add a hyperlink column to the ultraweb grid. Can anyone help me out with this. Currently, I am binding the data coming from the Database to the grid. To this data I need to add a hyperlink column "View" that will redirect me to a popup. I need to pass some values from this page to the popup. Need pointers if this can be done on Javascript. I am unable to get the code anywhere. It would be really helpful if someone can help me out Regards, Sunitha

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• wpf DependencyProperty Not accepting default value for short

  - by biju

  Hi, I was trying to use tis depencency property in my code but it gives me error says that Default value type does not match type of property 'MyProperty'.But short should accept 0 as default value.Ans also if i try to give null as default value it works..even if its a non nullabel type.How come this happens.. public short MyProperty { get { return (short)GetValue(MyPropertyProperty); } set { SetValue(MyPropertyProperty, value); } } // Using a DependencyProperty as the backing store for MyProperty. This enables animation, styling, binding, etc... public static readonly DependencyProperty MyPropertyProperty = DependencyProperty.Register("MyProperty", typeof(short), typeof(Window2), new UIPropertyMetadata(0));

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• Is there a literal notation for decimal in IronPython?

  - by jeroenh

  suppose I have the following IronPython script: def Calculate(input): return input * 1.21 When called from C# with a decimal, this function returns a double: var python = Python.CreateRuntime(); dynamic engine = python.UseFile("mypythonscript.py") decimal input = 100M; // input is of type Decimal // next line throws RuntimeBinderException: // "cannot implicitly convert double to decimal" decimal result = engine.Calculate(input); I seem to have two options: First, I could cast at the C# side: seems like a no-go as I might loose precision. decimal result = (decimal)engine.Calculate(input); Second option is to use System.Decimal in the python script: works, but pollutes the script, which should be understandable for my users... import clr import System def CalculateVAT(amount): return amount * System.Decimal(1.21) Is there a way to tell the DLR that the number 1.21 should be interpreted as a Decimal, much like I would use the '1.21M' notation in C#?

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• Export Plone users to LDAP?

  - by Kevin

  Hi, I've been tasked with setting up a subversion server next to a Plone instance. The situation is that the Plone instance is already in a "production" state because there are outside users that can access it any moment. I believe setting up a LDAP and binding both, the Plone and subversion instance, to it for authentication is the best solution. So, my question is "how do I export already existing users and respective credentials from a Plone instance to an LDAP install for a seamless transition?" Thanks for any suggestions in advance!

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• Check if value of textbox extended with MaskedEditExtender is valid?

  - by Ismail S

  Below is my code: <asp:TextBox ID="FromDateTextBox" runat="server" /> <asp:ImageButton ID="FromDateImageButton" runat="server" ImageUrl="~/images/calander.png" /> <ajaxkit:CalendarExtender ID="FromDate" runat="server" TargetControlID="FromDateTextBox" CssClass="CalanderControl" PopupButtonID="FromDateImageButton" Enabled="True" /> <ajaxkit:MaskedEditExtender id="FromDateMaskedEditExtender" runat="server" targetcontrolid="FromDateTextBox" Mask="99/99/9999" messagevalidatortip="true" onfocuscssclass="MaskedEditFocus" oninvalidcssclass="MaskedEditError" masktype="Date" displaymoney="Left" acceptnegative="Left" errortooltipenabled="True" /> <ajaxkit:MaskedEditValidator id="FromDateMaskedEditValidator" runat="server" controlextender="FromDateMaskedEditExtender" controltovalidate="FromDateTextBox" emptyvaluemessage="Date is required" invalidvaluemessage="Date is invalid" display="Dynamic" tooltipmessage="Input a date" emptyvalueblurredtext="*" invalidvalueblurredmessage="*" validationgroup="MKE" /> I've set Culture="auto" UICulture="auto" in @Page directive and EnableScriptGlobalization="true" EnableScriptLocalization="true" in script manager to have client culture specific date format in my textbox. I also have a Go button on my page on which I will do a partial post back. So, I want to validate the FromDateTextBox in javascript when the Go button is clicked.

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• Using boost unordered map

  - by Amrish

  Guys, I am using dynamic programming approach to solve a problem. Here is a brief overview of the approach Each value generated is identified using 25 unique keys. I use the boost::hash_combine to generate the seed for the hash table using these 25 keys. I store the values in a hash table declared as boost::unordered_map<Key_Object, Data_Object, HashFunction> hashState; I did a time profiling on my algorithm and found that nearly 95% of the run time is spent towards retrieving/inserting data into the hash table. These were the details of my hash table hashState.size() 1880 hashState.load_factor() 0.610588 hashState.bucket_count() 3079 hashState.max_size() 805306456 hashState.max_load_factor() 1 hashState.max_bucket_count() 805306457 I have the following two questions Is there anything which I can do to improve the performance of the Hash Table's insert/retrieve operations? C++ STL has hash_multimap which would also suit my requirement. How does boost libraries unordered_map compare with hash_multimap in terms of insert/retrieve performance.

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• SelectedIndex of combobox not updating correctly using databinding.

  - by Matthijs Wessels

  I have a ComboBox: <ComboBox Name="iComponentFieldComboBox" SelectedIndex="{Binding ComponentFieldSelectedIndex, Mode=TwoWay}" Height="23" Margin="132,0,280,38" VerticalAlignment="Bottom"> <ComboBoxItem Name="item1">item1</ComboBoxItem> <ComboBoxItem Name="item2">item2</ComboBoxItem> <ComboBoxItem Name="item3">item3</ComboBoxItem> </ComboBox> When I start my WPF and set the ComponentFieldSelectedIndex property of my ViewModel in my code, nothing happens. But after I have selected an item in the combobox, then suddenly setting ComponentFieldSelectedIndex does work. for example: start app. click button that sets ComponentFieldSelectedIndex to 1. selected item doesn't change to item2. select item3 in combo box. click button that sets ComponentFieldSelectedIndex to 1. selected item does change to item2. Does anyone have an idea what could be causing this?

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• Polling duplex does not scale... what's the alternative?

  - by user80855

  Our tests showed that the polling duplex binding simply does not scale and can not be used on a service within a web-farm or even a web garden. We have looked at TCP/IP sockets for a client push method, but the firewall issue is does allow us to use sockets. I was wondering what is the alternative "free" solution to this problem? allowing us to scale and allowing us to push data to client... I have also tried the solution in this article http://tomasz.janczuk.org/2009/09/scale-out-of-silverlight-http-polling.html but at the end, there was too much polling on a database, and performance was affected. Our Silverlight application need a pub/sub design, but it needs to be reliable and scalable... any ideas?

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• What is the release date for Rakudo Star (perl6)?

  - by kbenson

  If a specific release date is not available (as I suspect it is not), can you provide resources for tracking how close it is to the desired feature set that allows release. I'm not necessarily asking for a percentage gauge, or X of Y features completed list. A list of bugs marked in whichever section of the perl RT instance that's tracking Rakudo bugs would meet my criteria, even more so if the list is dynamic (I.e. it's a list of bugs tagged in some manner, not a static list of ticket numbers). If there are only a few planned features left to be finished/tested before it's considered ready for final testing, listing those would also be sufficient.

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• accepts_nested_attributes_for ignore blank values

  - by Mike

  i have class Profile has_many :favorite_books, :dependent => :destroy has_many :favorite_quotes, :dependent => :destroy accepts_nested_attributes_for :favorite_books, :allow_destroy => true accepts_nested_attributes_for :favorite_quotes, :allow_destroy => true end I have a dynamic form where you press '+' to add new textareas for creating new favorites. What i want to do is ignore the blank ones, I find this harder to sort through in the update controller than a non nested attribute. What i have temporarily is a hack in the after_save callback deleting the empty records. Whats the most rails way to ignore these blank objects? I dont want validation and errors, just a silent deletion/ignore.

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• PHP gallery, thumbnail listing

  - by Benjamin

  Hi everyone, I am planning a dynamic PHP photo gallery and having difficulty deciding on the best way to display the thumbnails after they have been retrieved via MySQL. I considered using an inline unordered list but this resulted in the thumbs being stacked one on top of the other (touching). Also tried a table but not sure how I would start the next row after x number of thumbnails. Any suggestions on page layout for this purpose? I will be using Lightbox to cycle through the photos themselves, that isn't the issue. Also, would a while() loop be best for fetching the list of thumbs and inserting the appropriate HTML? Thanks! -Ben

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• mvvm-light: Should we merge Cleanup methods in locator?

  - by mark smith

  Hi there, when creating a new ViewModel within the locator class using the snippet it creates a Cleanup Method but there is already one available from the Main so hence an error.... Should we merge them all?? Or should we be renaming the method to Cleanup[Name of viewmodel] for example. I am a little confused here Another question i would like to ask is regards to the naming conventions. I tried to follow the naming convention used with "MAIN"... hence i have CreateLogin, ClearLogin, Login (non static property for binding) etc etc.. Would it not be better to use CreateLoginViewModel, ClearLoginViewModel etc?? Just curious Thanks

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• Can anyone get this project to work? (EasyHook)

  - by Tom

  Hi, i'm trying to 'load' the following project into visual studio 2010 but im getting errors about dynamic link libraries not being found. I have manually referenced them but it doesnt like them. The project is: http://www.codeproject.com/KB/DLL/EasyHook64.aspx 2nd link down (EasyHook_2.5_Beta_Source_Code), and the project im wishing to load is EasyHook_2.5_Beta_Source_Code\Examples\ProcessMonitor The two dlls plus 1 executable i need are found in the first link (EasyHook 2.5 beta binaries) and named EasyHook.dll, EasyHook32.dll and EasyHook32svc.exe I've been trying to do this all night but i wonder whether its because im using VS2010 and .NET 4.0?? I'd be so appreciative if someone could have a go themselves just to see if its my setup or they get errors to. The error i get is: Unable to load DLL 'EasyHook32.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)

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• Regex to detect a proper permalink?

  - by Fedor

  These permalinks above are rerouted to my page: page.php?permalink=events/foo page.php?permalink=events/foo/ page.php?permalink=ru/events/foo page.php?permalink=ru/events/foo/ The events is dynamic, it could be specials or packages. My dilemma is basically; I need to detect an empty link in order so I can feed a robots no index meta tag in the case of: page.php?permalink=events page.php?permalink=events/ page.php?permalink=ru/events/ page.php?permalink=ru/events I can't use a simple pattern such as [a-zA-Z]+\/?(.+)/ since it won't work on the i18n permalinks. What regex could I use which would detect this, using $_GET['permalink'] as the reference to the permalinks? And avoid false positives? Update: Empty link means there's no fragment after the "events/" part. These are empty: page.php?permalink=events page.php?permalink=events/ page.php?permalink=ru/events/ page.php?permalink=ru/events

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• Classical Round Table algorithm?

  - by user1795954

  Coins with different value are spread in circle around a round table . We can choose any coin such that for any two adjacent pair of coins , atleast one must be selected (both maybe selected too) . In such condition we have to find minimum possible value of coins selected . I have to respect time complexity so instead of using naive recursive bruteforce , i tried doing it using dynamic programming . But i get Wrong Answer - my algorithm is incorrect . If someone could suggest an algorithm to do it dynamically , i could code myself in c++ . Also maximum number of coins is 10^6 , so i think O(n) solution exists .

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• Detect HTTPHandler Start

  - by Joe Coder Guy

  Is there a way to detect if a httphandler has started transmitting? I'm trying to do large dynamic Excel Exports (in html table format). I can do this, but there's a long delay from the httphandler getting the message and starting the download. I have turned off the output buffer, so the delay seems to be waiting for the SQL server to dump the data into the sqldataset. Anyways, I'd like to send the user to a new page, have the page display a message, and automatically close once the httphandler has started sending the file. Is there a way to detect if the first file headers have been sent? Many thanks in advance!

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• Differences between Perl and PHP

  - by lok

  I'm planning to lern Perl 5 and as I have only used PHP until now, I wanted to know a bit about how the languages differ from each other. As PHP started out as a set of "Perl hacks" it has obviously cloned some of Perls features. What are the main differences in the syntax? Is it true that with Perl you have more options and ways to express something? Why is Perl not used for dynamic websites very often anymore? What made PHP gain more popularity than it?

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• When do I need to use automatic poperties and when properties with propertychanged event ?

  - by Honey

  Hello, I am using wpf and its C sharp! I have this in my Animal.cs clas private string _animalName; public string AnimalName { get { return _animalName; } set { if(_animalName!= value) { _animalName= value; this.NotifyPropertyChanged("AnimalName"); } } } I could also write: public string AnimalName {get;set;} There is no difference in binding and validation. Everythings works as before when I exchange the code. Is this due to the fact that I only create new animals but I do not allow to update the animals name in my application ? So I need to call the propertyChanged("AnimalName"); only when I want to change its property value? I am a c# beginner ;)

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• Substring and its reverse in a string

  - by christa

  My professor was talking about this in a Dynamic programming class and asked us to think over it. She gave us some examples as well. Given a string, we were to find the longest continuous subsequence whose reverse is also a subsequence present in the given string. Example: INPUT: pqrstuvtsrv OUTPUT: i=3, k=2 rst -> tsr (rst found first at i=3 and for 2 more positions) INPUT: mpqrsrqp OUTPUT: i=2, k=6 pqrsrqp in reverse INPUT: mmpqssss OUTPUT: i=5, k=3 I thought of putting the string and its reverse into 2 different arrays and comparing character by character. But I'm sure this is not the best way to do it. Any suggestions as to what could be the most efficient ?

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