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  • How to create entities in one Entity group ?

    - by Gopi
    I am building an app based on google app engine (Java) using JDO for persistence. Can someone give me an example or a point me to some code which shows persisting of multiple entities (of same type) using javax.jdo.PersistenceManager.makePersistentAll() within a transaction. Basically I need to understand how to put multiple entites in one Entity Group so that they can be saved using makePersistentAll() inside transaction.

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  • Generic JSON parser in .NET / WPF?

    - by niklassaers
    I've read lots of tutorials on how to deserialize a JSON object to an object of a particular using DataContractJsonSerializer. However, I'd like to deserialize my object to a Dictionary consisting of either Strings, Arrays or Dictionaries, such as System.Json does with SilverLight when I say JsonObject.Parse(myJSONstring). Is there an equivalent to System.Json that I can use in my WPF project? (just a short background: I'm fetching JSON objects that have way to much info, and I just want to use a little bit to fill out a String array) Cheers Nik

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  • Read from cin or a file

    - by m42a
    When I try to compile the code istream in; if (argc==1) in=cin; else { ifstream ifn(argv[1]); in=ifn; } gcc fails, complaining that operator= is private. Is there any way to set an istream to different values based on a condition?

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  • Check linux distro name

    - by Ockonal
    Hi guys, I have to get linux distro name from python script. There is dist method in platform module: import platform platform.dist() But it returns >>> platform.dist() ('', '', '') Under my Arch Linux. Why? How can I get the name. p.s. I have to check whether the distro is debian-based.

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  • mixing OpenGL and Interface Builder/ UI Controls - bad idea? Why? (iPhone)

    - by Adam
    I've heard that OpenGL ES and standard iPhone UI controls don't play well together, but I'm wondering if anyone knows why, and what the effects are? I'm writing an OpenGL based game, and the view is loaded from a nib file with ui controls, and it seems to work ok, but the game is really simple at this point... does using ui controls cause some kind of performance hit?

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  • Template function in C# - Return Type?

    - by LifeH2O
    It seems that c# does not support c++ like templates. template <class myType> myType GetMax (myType a, myType b) { return (a>b?a:b); } I want my function to have return type based on its parameters, how can i achieve this in c#? How to use templates in C#

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  • Generating an Excel file in ASP.NET

    - by Dan Coates
    I am about to add a section to an ASP.NET app (VB.NET codebehind) that will allow a user to get data returned to them as an Excel file, which I will generate based on database data. While there are several ways of doing this, each has its own drawbacks. How would you return the data? I'm looking for something that's as clean and straightforward as possible.

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  • Monitoring GPS Coordinates

    - by Suriyan Suresh
    I need to monitor GPS Coordinates changes at every 15 min and take action based on that. as per bada developer guide report "only one application allowed to run at a time if another application try to run first one is closed" .so that how do i monitor GPS coordinates without interruption from other applications. how do i keep my application running at all times

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  • UIWebView or Custom UIView

    - by dinoc
    I have a dilemma and was wondering if anyone else had this issue. I have a Navigation based app that when you drill down to the last level, that last view has lots and lots of information and details. I am wondering if I should just use a UIWebView to display the details of information or if I should create a custom UIView with all the labels and outlets set in that UIView. Which way is recommended or the preferred way of doing something like this?

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  • How to link to specific anchor in table with jquery

    - by LisaH
    I am using this jquery plugin: http://www.jankoatwarpspeed.com/post/2009/07/20/Expand-table-rows-with-jQuery-jExpand-plugin.aspx I have anchors in the code such as: <a name="art" id="art2"></a> Articles How can I open that particular row then? In other words, when a user clicks a link from another page to this landing page I would like the appropriate row to open up based on the anchor tag. Thanks in advance!

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  • Autovivification in C#

    - by Terrance
    Trying to wrap my head around perl's Autovivification and based on what it sounds like, It seems to work similar to dynamics in C# as a dynamic object is not assigned a type until runtime or, am I totally off here. If so then is there a comparable idea that I can bridge off of in C# that makes sense? Edit Okay so I'm apparently way off. So as second part of the 2 part question, is there anything conceptually comparable in C#?

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  • jquery 1.4.1 breaks my slideshow

    - by JMC Creative
    After toying with the jquery slideshow extension, I created my own that better suited my purposes ( I didn't like that all the images needed to load at the beginning for instance). Now, upon upgrading to jQuery 1.4.2 (I know I'm late), the slideshow loads the first image fine ( from the line$('div#slideshow img#ssone').fadeIn(1500); towards the bottom), but doesn't do anything beyond that. Does anyone have any idea which jquery construct is killing my script? The live page is at lplonline.org which is using 1.3.2 for the time being. Thanks in advance. Array.prototype.random = function( r ) { var i = 0, l = this.length; if( !r ) { r = this.length; } else if( r > 0 ) { r = r % l; } else { i = r; r = l + r % l; } return this[ Math.floor( r * Math.random() - i ) ]; }; jQuery(function($){ var imgArr = new Array(); imgArr[1] = "wp-content/uploads/rotator/Brbrshop4-hrmnywkshp72006.jpg"; imgArr[2] = "wp-content/uploads/rotator/IMGA0125.JPG"; //etc, etc, about 30 of these are created dynamically from a db function randImgs () { var randImg = imgArr.random(); var img1 = $('div#slideshow img#ssone'); var img2 = $('div#slideshow img#sstwo'); if(img1.is(':visible') ) { img2.fadeIn(1500); img1.fadeOut(1500,function() { img1.attr({src : randImg}); }); } else { img1.fadeIn(1500); img2.fadeOut(1500,function() { img2.attr({src : randImg}); }); } } setInterval(randImgs,9000); // 9 SECONDS $('div#slideshow img#ssone').fadeIn(1500); }); </script> <div id="slideshow"> <img id="ssone" style="display:none;" src="wp-content/uploads/rotator/quote-investments.png" alt="" /> <img id="sstwo" style="display:none;" src="wp-content/uploads/rotator/quote-drugs.png" alt="" /> </div>

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  • Color scaling function

    - by Tomas Pajonk
    I am trying to visualize some values on a form. They range from 0 to 200 and I would like the ones around 0 be green and turn bright red as they go to 200. Basically the function should return color based on the value inputted. Any ideas ?

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  • change dojo namespace

    - by Robert
    I need to change the dojo namespace to something else. I found this stackoverflow post, but it refers to a dojo documentation page that no longer exists. Below is something I tried based on this page, but didn't work: <html <head <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/dojo/1.4/dojo/dojo.xd.js" djConfig="scopeMap: [[ 'dojo', 'newns' ]]"</script <script newns.addOnLoad(function(){ console.debug("hello world"); }); </script </head <body </body </html Help!

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  • MySQL : Selecting alternative field if given field is empty

    - by Kyobul
    Hi, I wonder if is it possible to run mysql command which can select an alternative field if the first given field is empty, on the same table. Example : I have table called "posts" which have "intro" and "content". In the same statement I would like to select as a result "content" if "intro" is empty, but not having both in the result array. Thanks in advance

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  • Multiple conditions on select query

    - by stats101
    I have a select statement and I wish to calculate the cubic volume based on other values within the table. However I want to check that neither pr.Length_mm or pr.Width_mm or pr.Height_mm are NULL prior. I've looked at CASE statements, however it only seems to evaluate one column at a time. SELECT sa.OrderName, sa.OrderType, pr.Volume_UOM ,pr.Length_mm*pr.Width_mm*pr.Height_mm AS Volume_Cubic ,pr.Length_mm*pr.Width_mm AS Volume_Floor ,pr.Length_mm ,pr.Height_mm ,pr.Width_mm FROM CostToServe_MCB.staging.Sale sa LEFT JOIN staging.Product pr ON sa.ID = pr.ID

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  • Get data on the basis of conditions in entity framework 3.5 with include

    - by Ashwani K
    Hello All: I am using entity framework 3.5 for my application. I want load data based on some condition e.g. var data = from e in context.Employee.Include("Employee.Projects") where e.IsActive select e; Using this, I will get all the Employees which are active with their project details. But I want to load only those projects which are active. So, how to load only active projects using the query? Thanks Ashwani

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  • Saving several Monticello packages at once

    - by Juan Barreda
    I am working with Pharo Smalltalk. Suppose you want to save your own group of packages into a local repository, you know that your packages are prefixed with "MyPrefix". What's the right message to do it? In code: | myPkgs | myPkgs := MCPackage allInstances select: [: mcPkg | mcPkg name beginsWith: 'MyPrefix' ]. myPkgs do: [ : myPkg | myPkg ??? ]. It would be too difficult to script that one for a web based repository?

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