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  • C# Printing Properties

    - by Mark
    I have a class like this with a bunch of properties: class ClassName { string Name {get; set;} int Age {get; set;} DateTime BirthDate {get; set;} } I would like to print the name of the property and it's value using the value's ToString() method and the Property's name like this: ClassName cn = new ClassName() {Name = "Mark", Age = 428, BirthData = DateTime.Now} cn.MethodToPrint(); // Output // Name = Mark, Age = 428, BirthDate = 12/30/2010 09:20:23 PM Reflection is perfectly okay, in fact I think it is probably required. I'd also be neat if it could somehow work on any class through some sort of inheritance. I'm using 4.0 if that matters.

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  • .Net friendly, local, key-value pair, replicatable datastore

    - by Brad Mathews
    I am looking for a key/value type datastore with very specific requirements. Anyone know anything that will work? Needs to be a component of some sort. No additional installation needed. The datastore needs to be on the local hard drive. I am using VB.Net for a desktop app running Windows XP through 7 so it needs to callable by that environment. It needs to replicatable. If I have four copies of my app running on the network, each local copy of the datastore needs to replicate with the others. As close to real time as possible. The first three are easy, I can do that with ADO.Net out of the box. The last one, replication, is the one I do not have answer to. Does such an animal exist? Thanks, Brad

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  • MyClass cannot be cast to java.lang.Comparable: java.lang.ClassCastException

    - by user2234225
    I am doing a java project and I got this problem and don't know how to fix it. The classes in my project (simplified): public class Item { private String itemID; private Integer price; public Integer getPrice() { return this.price; } } public class Store { private String storeID; private String address; } public class Stock { private Item item; private Store store; private Integer itemCount; public Integer getInventoryValue() { return this.item.getPrice() * this.itemCount; } } Then I try to sort an ArrayList of Stock so I create another class called CompareByValue public class CompareByValue implements Comparator<Stock> { @Override public int compare(Stock stock1, Stock stock2) { return (stock1.getInventoryValue() - stock2.getInventoryValue()); } } When I try to run the program, it gives the error: Exception in thread "main" java.lang.ClassCastException: Stock cannot be cast to java.lang.Comparable Anyone know what's wrong?

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  • jQuery event to trigger action when a div is made visible

    - by frankadelic
    I'm using jQuery in my site and I would like to trigger certain actions when a certain div is made visible. Is it possible to attach some sort of "isvisible" event handler to arbitrary divs and have certain code run when they the div is made visible? I would like something like the following pseudocode: $(function() { $('#contentDiv').isvisible(function() { alert("do something"); }); }); The alert("do something") code should not fire until the contentDiv is actually made visible. Thanks.

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  • Microsoft T-SQL to Oracle PL/SQL translation

    - by Michael Prewecki
    I've worked with T-SQL for years but i've just moved to an organisation that is going to require writing some Oracle stuff, probably just simple CRUD operations at least until I find my feet. I'm not going to be migrating databases from one to the other simply interacting with existing Oracle databases from an Application Development perspective. Is there are tool or utility available to easily translate T-SQL into PL/SQL, a keyword mapper is the sort of thing I'm looking for. P.S. I'm too lazy to RTFM, besides it's not going to be a big part of my role so I just want something to get me up to speed a little faster.

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  • .NET how to output csv from enumeration of anonymous type?

    - by Ronnie Overby
    Using FileHelpers, I decorated a class with [DelimitedRecord(",")] and was going to output an enumeration of objects of that type as CSV. But, it didn't work because my class inherits from ActiveRecordLinqBase<T>, which caused some problems. So, I was wondering if I could just select an enumeration of anonymous types and somehow have filehelpers generate csv from that. I don't like having to define a class just for FileHelpers to output csv. I would be open to using another csv library, but FileHelpers is proven. EDIT @Foovanadil: This would be the sort of thing I am trying to do: CreateCSV(MyCollection.Select(x=>new{ x.Prop1, x.Prop2, x.Prop3 })); Gives you: Prop1,Prop2,Prop3 val1a,val2a,val3a, val1b,val2b,val3b, etc.....

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  • Verifying the purchaser of an App Store application

    - by Keldi
    Is there a way for the developer of an App Store application to tie a sale to an individual user/device ID/Apple account? In other words, a method for the developer to double-check that a specific user has legally purchased the software? I haven't been able to find a reliable answer to this yet. I'm not looking for specific code examples, just some sort of idea as to how possible (or difficult) this is. My intent isn't to penalize piracy; it's to be able to provide additional benefits to paid customers. As such, I'm not looking for a way to identify a cracked or pirated version, which I gather has already been solved. Thanks in advance for any help you can provide!

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  • Ruby - Subclassing array to make it randomize when flattened

    - by Markus O'Reilly
    I'm trying to subclass Array in ruby to make it randomize its elements when flatten! is called. Looking at the source code for Array#flatten (http://ruby-doc.org/core/classes/Array.src/M002218.html), it looks like it should recursively call flatten! on any array contained within an array. So, I tried doing something like this: class RandArray < Array def randomize! self.sort!{rand(3)-1} end def flatten! randomize! super end end However, when a normal array contains my RandArray and flatten is called on the normal array, flatten! is never called in my array. I figure ruby is just calling some other method to flatten the arrays recursively, but I can't figure out what that is. Any tips?

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  • Custom component which displays voice recognition button if available

    - by steff
    Hi evereyone, I'd like to create a custom component which supports voice recognition. It will primarily be an extended EditText which should show the microphone button for voice recognition if it is available. I wanted to to look at the search app-widget on the homescreen but I don't find it in the source. This is intended to use the voice recognition as some sort of dictation device, i.e. the user does not have to type but use his voice instead. So could anyone please point me in some direction? Thanks in advance, Steff

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  • How to add children of an ItemsControl where the children should decide their own position in Wpf?

    - by code-zoop
    Hey all I am using a wpf slider to display the time line in a video player. I need to add an ItemControl of some sort on top of this so that I can add buttons on the time line on certain positions in the time line (the buttons will hold their own position relative to the parent ItemsControl). What ItemsControl container should I use where I can add child elements that know their own position (based on their timecode)? I have looked at the different ItemsControls in Wpf, and it looks like all of them have a certain way to stack their children (Horizontal or vertical one after another)! And to add some more complexity, How can the positioning of the children be relative to the width of the parent ItemsControl? This way scaling up and down the ItemsContol will reposition the children! Thanks

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  • comparator with null values.

    - by pvgoddijn
    Hi, We have some code wich sorts a list of addresses based on the distance between their coordinates. this is done through collections.sort with a custom comparator. However from time to time an adress without coordinates is in the list causing a NullPointerException. My initial idea to fix this was to have the comparator return 0 as dististance for addresses where at least one of the coordinates is null. I fear this might lead to corruption of the order the 'valid' elements in the list. so is returning a '0' values for null data in a comparator ok, or is there a cleaner way to resolve this.

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  • removing duplicate strings from a massive array in java efficiently?

    - by Preator Darmatheon
    I'm considering the best possible way to remove duplicates from an (Unsorted) array of strings - the array contains millions or tens of millions of stringz..The array is already prepopulated so the optimization goal is only on removing dups and not preventing dups from initially populating!! I was thinking along the lines of doing a sort and then binary search to get a log(n) search instead of n (linear) search. This would give me nlogn + n searches which althout is better than an unsorted (n^2) search = but this still seems slow. (Was also considering along the lines of hashing but not sure about the throughput) Please help! Looking for an efficient solution that addresses both speed and memory since there are millions of strings involved without using Collections API!

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  • problem in leigeber's sorting

    - by developer
    iam using leigeber's sorting javascript to sort my data on my page......i took the js from here :- leigeber's sorting javascript Now this is shwoing highlighted sorted column and all and its all perfect.Now iam having some negative and some positive values in my data and i want to show those negative data in red color and positive in green.This whole sorting thing is using js and css to do the highlighting and sorting.Iam a bit confused now and cant make it out that how i can assign red color to the negative ones and green to the positive ones as js is returning the data as an object i.e. a complete row and i cant make 1 column's data red or green.Will it be done by js itself or with the help of stylesheet to find -ves and +ves.Im totally lost and dont know how to do it.Please help!!!! this is an example of hte data iam using this whole sorting thing on:- -Name- -Price- -loss- -Pts- abc 361.15 -5.68 -21.75 abc2 1072.35 -5.24 -59.25 abc3 512.35 5.24 28.35 abc4 335.2 -5.02 -17.7 abc5 318.6 5.01 -16.8 abc6 76.15 -4.15 3.3

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  • Nielson's usablity scale

    - by Banderdash
    Just wondering if anyone out there knows of a standard survey (preferably based off Jacob Nielson's work on usability) that web admin's can administer to test groups for usability? I could just make up my own but I feel there as got to be some solid research out there on the sort of judgments on tasks I should be asking. For example Q:: Ask user to find profile page Do I ... A.) Present them with standard likert scale after each question B.) Present them the likert after all the questions .. Then what should that likert be, I know Nielson's usability judgments scale is based on Learnability, Efficiency of Use, Memorability, Error Rate, Satisfaction but I can only imagine a likert I would design that would effectively measure satisfaction...how am I suppose to ask a user to rank the Memorability of a site after one use on a 1-5 scale? Surely someone has devised a good way to pose the question?

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  • Setup Project is not correctly registering assembly in GAC

    - by Arnold Zokas
    I have created a custom Rewrite Provider for IIS 7 following instructions in this article: Developing a Custom Rewrite Provider for URL Rewrite Module To simplify deployment, I have created a VS2010 Setup Project and configured it to deploy my assembly to GAC. When I run the installer, it completes successfully, and appears to be registered the assembly in GAC (I have verified using gacutil.exe /l). However, when I go to IIS Manager to register the new rewrite provider it is not displayed in the list of available providers. I have also tried to install the assembly manually using gacutil.exe /if. This does work and makes assembly visible in the list of available providers in IIS Manager. Am I missing some sort of configuration in my Setup Project?

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  • qt/wxwidgets third party components?

    - by tkd
    I'm used to working in a Delphi and C# environment which seem to have a rich set of third party components available. I'm currently wanting to do cross-platform programming in C++ using either qt or wxwidgets. Is there a large market for third party components? I was looking at sourceforge and that doesn't seem to show much that is useful (how the hell do you find out what components or features are in a project without downloading the source?). I'm thinking carousel/coverflow components, rich datagrids (like the sort DevExpress provide). Or is this, write your own territory?

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  • read/write_attribure on associations

    - by artemave
    read/write_attribute is a great way to enhance default accessors generated by ActiveRecord. Like this for example: def price read_attribute(:price) or "This item is priceless and you are by the way #{User.current.login}" end The same however does not seem to be working with associations. Demonstration: class Product < ActiveRecord::Base has_and_belongs_to_many :stores end Then >> a = Product.first => #<Product id: 1, name: "awesome product", created_at: "2010-05-07 12:11:00", updated_at: "2010-05-07 12:11:00"> >> a.stores => [#<Store id: 1, name: "ikea", created_at: "2010-05-07 12:11:28", updated_at: "2010-05-07 12:11:28">] >> a.read_attribute(:stores) => nil >> So, is there some sort of read/write_association? Or, if not, is there a reason not to have one?

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  • Figuring out if overflow:auto would have been triggered on a div

    - by jerrygarciuh
    Hi folks, // Major edit, sorry in bed with back pain, screwed up post One of the ad agencies I code for had me set up an alternate scrolling solution because you know how designers hate things that just work but aren't beautiful. The scrolling solution is applied to divs with overflow:hidden and uses jQuery's scrollTo(). So, this is married in places to their CMS. What I have not been able to sort yet is how to hide the scrolling UI when overflow:auto would not have been triggered by the CMS content. The divs have set heights and widths. Can i detect hidden content? Or measure the div contents' height? Any ideas? TIA JG

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  • How do i convert hdb file? ... believed to be from act! source

    - by Wardy
    Any ideas ? I think the original source was a goldmine database, looking around it appears that the file was likely built using an application called ACT which I gather is a huge product I don't really want to be deploying for a one off file total size less than 5 meg. So ... Anyone know of a simple tool that I can run this file through to convert it to a standard CSV or something? It does appear to be (when looking at it in notepad and excel) in some sort of csv type format but it's like the data is encrypted somehow.

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  • Order Result in Sqlite

    - by saturngod
    In MySQL , my sql is like following SELECT * , IF( `Word` = 'sim', 1, IF( `Word` LIKE 'sim%', 2, IF( `Word` LIKE '%sim', 4, 3 ) ) ) AS `sort` FROM `dblist` WHERE `Word` LIKE '%sim%' ORDER BY `sort` , `Word` This sql is not working in SQlite. I want to do result order. SELECT * FROM dblist where word like 'sim' or word like 'sim%' or word like '%sim%' or word like '%sim' equal sim is a frist , sim% is second and %sim% is a thrid and then %sim is a last. Currently I can't sort like mysql in sqlite. How to change sql to order the result ?

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  • jqueryUI: Drag element from dialog and drop onto main page?

    - by Seth Petry-Johnson
    I am trying to create a drag and drop system consisting of a workspace and a "palette". The workspace currently consists of re-orderable list items, and I want the palette to be a floating window from which I can drag items and add them to a specific position on the workspace. I am currently using the jqueryUI "sortable" plugin for the workspace and the jqueryUI "dialog" plugin for the palette. However, I cannot drag something out of the dialog and on to the main page. When I try, the item being dragged disappears as it crosses the boundary of the dialog (which makes sense). What can I change so that items will remain visible as I drag them out of the palette and allow me to drop them onto the main workspace? Alternatively, are there any jquery plugins that offer this sort of drag-n-drop palette as a primary feature?

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  • WPF Dragging causes renderer to stop

    - by Cameron MacFarland
    I'm having a problem with my WPF app, where any sort of drag operation stops the UI from updating. The issue seems periodic, as in, the item drags, stops, drags again, stops, etc. in 2 second intervals. It's affecting all controls, including scroll bars. If checked this question as well as this one, and it doesn't seem to be caused by window transparencies. I'm running Win7 x64 with .NET 3.5sp1. Does anyone know what might be causing this, or a way of figuring out what might be causing this?

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  • Changing the x-axis of seqlogo figures in matlab

    - by JudoWill
    I'm making a large number of seqlogos programatically. They are hundreds of columns wide and so running a seqlogo normally creates letters that are too thin to see. I've noticed that I only care about a few of these columns (not necessarily consecutive columns) ... most are noise but some are highly conserved. I use something like this snippet: conserve_cell = seqlogo(wide_seqs, 'displaylogo', false); high_bit_cols = any(conserve_cell{2}>1.0,1); [~, handle] = seqlogo(wide_seqs(:,high_bit_cols )); Although when I do this I lose the information about which columns the data came from. Normally I would just change the x-axis of the seqlogo. However, seqlogo's are some sort of crazy java-based object and calls like: set(handle, 'xticklabel', num2str(find(high_bit_cols))) don't work. Any help would be greatly appreciated. Thanks, Will

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  • Providing multi-version databases for backward compatibility for production applications/databases.

    - by JavaRocky
    How can I manage multiple versions of a database easily? I have some data (as views as selects for data originating in tables from other schemas), which other database may reference using various means including database synonyms & links. I wish to provide a sort of interface/guarantee in-case future for applications/databases which use this data. All of this is for in the event i need to update the views for correctness or applicability inside my database. How can i achieve this in a maintained, controlled and easy way? I am using Oracle 10g if that matters.

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  • GWT's JSONParser producing incorrect values for numbers.

    - by WesleyJohnson
    I'm work with GWT and parsing a JSON result from an ASP.NET webservice method that returns a DataTable. I can parse the result into a JSONvalue/JSONObject just fine. The issue I'm having is that one my columns in a DECIMAL(20, 0) and the values that are getting parsed into JSON aren't exact. To demonstrate w/o the need for a WS call, in GWT I threw this together: String jsonString = "{value:4768428229311981600}"; JSONObject jsonObject = JSONParser.parse( jsonString ).isObject(); Window.alert( jsonObject.toString() ); This in turn alerts: {"value":4768428229311982000} I'm under the understanding that GWT's JSONParser is just using eval() to do the parsing, so is this some sort of number/precision issue with JavaScript that I've never been aware of. I'll admit I don't work with numbers that much in JavaScript and I might be able to work around this by changing the .NET WebService to return this column as string, but I'd really rather not do that. Thanks for any help.

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