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• convert ArrayList.toString() back to ArrayList in one call

  - by dotnetnewbie

  I have a toString() representation of an ArrayList. Copying the toString() value to clipboard, I want to copy it back into my IDE editor, and create the ArrayList instance in one line. In fact, what I'm really doing is this: my ArrayList.toString() has data I need to setup a unit test. I want to copy this ArrayList.toString() into my editor to build a test against this edge case I don't want to parse anything by hand My input looks like this: [15.82, 15.870000000000001, 15.92, 16.32, 16.32, 16.32, 16.32, 17.05, 17.05, 17.05, 17.05, 18.29, 18.29, 19.16] The following do not work: Arrays.asList() google collections Lists.newArrayList() Suggestions?

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• POX return data from WCF Data Services

  - by keithwarren7

  I am using WCF Data Services (netfx4) to provide data sourced from SQL via EF, the standard OData mechanism is fine and JSON works as well but I need a third option for generic POX (plain old xml). I have yet to come across a simple strategy or switch that allows me to control this but I am sure one must exist or a workaround method might be available. Any ideas? Ideally I would like to be able to use something like the JSONP option wherein I append 'format=JSON' to the URL, in this case 'format=pox' or 'POX=true' or something of that nature.

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• How to implement lambda as a function called "lambda" in Clojure?

  - by dirtyvagabond

  I'd like to be able to define lambdas using common Lisp syntax, in Clojure. For example: (lambda (myarg) (some-functions-that-refer-to myarg)) This needs to result in the same as: #(some-functions-that-refer-to %) In my case, I know I'll always have exactly one arg, so perhaps that simplifies things. (But it can be called anything -- "myarg" or whatever.) I suspect a workable solution is to "(defmacro lambda ...". If so, I'm not sure of the best way to proceed. How to cleanly translate the arg name to %? And how to end up with the correct function? Or, is there a simpler solution than writing my own macro that actually re-implements Clojure's... lambda?

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• Chrome error with NO_MODIFICATION_ALLOWED_ERR DOM Exception 7

  - by HP

  I have below code to insert a style into DOM (there is a use case for injecting style into DOM so please don't ask why or say to load the css in .css file). <script type="text/javascript"> window.onload = function() { var bmstyle = document.createElement('style'); bmstyle.setAttribute('type', 'text/css'); var styleStr = "#test-div {background:#FFF;border:2px solid #315300;"; bmstyle.innerHTML = styleStr; document.body.appendChild(bmstyle); } </script> If I run in Firefox, it works fine. But I got this error in Google Chrome: Line bmstyle.innerHTML = styleStr; Uncaught Error: NO_MODIFICATION_ALLOWED_ERR: DOM Exception 7 Does anyone have a fix? Thanks

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• Entity Framework - Using a list as a paramater in a compiled query

  - by vdh_ant

  Hi guys Just wondering if anyone knows whether I should be able to pass in list into a compiled query and have the query perform a contains operation? The reason why I ask is that I have a scenario where I need to do this, yet at run time I am getting the following error... The specified parameter 'categories' of type 'System.Collections.Generic.List`1[[System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]' is not valid. Only scalar parameters (such as Int32, Decimal, and Guid) are supported. I can understand why this might be the case but I was wondering if anyone knows a way around it. Cheers Anthony

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• C# Winforms ADO.NET - DataGridView INSERT starting with null data

  - by Geo Ego

  I have a C# Winforms app that is connecting to a SQL Server 2005 database. The form I am currently working on allows a user to enter a large amount of different types of data into various textboxes, comboboxes, and a DataGridView to insert into the database. It all represents one particular type of machine, and the data is spread out over about nine tables. The problem I have is that my DataGridView represents a type of data that may or may not be added to the database. Thus, when the DataGridView is created, it is empty and not databound, and so data cannot be entered. My question is, should I create the table with hard-coded field names representing the way that the data looks in the database, or is there a way to simply have the column names populate with no data so that the user can enter it if they like? I don't like the idea of hard-coding them in case there is a change in the database schema, but I'm not sure how else to deal with this problem.

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• How does the linux kernel manage less than 1GB physical memory ?

  - by TheLoneJoker

  I'm learning the linux kernel internals and while reading "Understanding Linux Kernel", quite a few memory related questions struck me. One of them is, how the Linux kernel handles the memory mapping if the physical memory of say only 512 MB is installed on my system. As I read, kernel maps 0(or 16) MB-896MB physical RAM into 0xC0000000 linear address and can directly address it. So, in the above described case where I only have 512 MB: How can the kernel map 896 MB from only 512 MB ? What about user mode processes in this situation? Where are user mode processes in phys RAM? Every article explains only the situation, when you've installed 4 GB of memory and the kernel maps the 1 GB into kernel space and user processes uses the remaining amount of RAM. I would appreciate any help in improving my understanding. Thanks..!

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• How do I stop IIS7 from putting out its own 404 before my MVC app gets a chance to handle it?

  - by Gary McGill

  I have an ASP.NET MVC 2 application, which has an Application_Error event handler in global.asax. In this, I'm detecting the case where the Exception type is HttpException and the HTTP code is 404, and redirecting to my own 404-handling page. This works fine on my Cassini development server, but now I'm trying to move it over to my production server which has IIS7. When I request a non-existent URL, IIS7 is showing its own 404 page, and so far as I can tell, my Application_Error method is never called. How do I fix that?

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• Multidimensional arrays in VB.NET 2010

  - by matt_t

  Is there any way to create a multidinensional array that contains arrays of different lengths (similar to nesting arrays of different lengths in python). Because if I were to declare a variable Dim accounts(2,2) As Integer all 1D arrays at each dimension have the same length. Is there any way to create an array so that this is not the case? e.g The above code would create an array like this: [[0,0],[0,0]] but would it be possible to create this: [[0,0],[0,0,0]] Apologies for the poor explanation but I cannot think of any better ways to explain.

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• Objective C: Create arrays from first array based on value

  - by Nic Hubbard

  I have an array of strings that are comma separated such as: Steve Jobs,12,CA Fake Name,21,CA Test Name,22,CA Bill Gates,44,WA Bill Nye,21,OR I have those values in an NSScanner object so that I can loop through the values and get each comma seperated value using objectAtIndex. So, what I would like to do, is group the array items into new arrays, based on a value, in this case, State. So, from those, I need to loop through, checking which state they are in, and push those into a new array, one array per state. CA Array: Steve Jobs,12,CA Fake Name,21,CA Test Name,22,CA WA Array: Bill Gates,44,WA OR Array: Bill Nye,21,OR So in the end, I would have 3 new arrays, one for each state. Also, if there were additional states used in the first array, those should have new arrays created also. Any help would be appreciated!

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• telerik mvc grid access cell data to enable columns.Command

  - by AZee

  Hi! I can't seem to find a way to reference the value in a column in the grid, in my case it is the StatusId. Based on the cell value in this row, for the StatusId, I need to return a true or false to the method ".Visible(???)". It would be nice to find the answer in the documentation online but I haven't been able to. I find it hard to believe that I would be the first person who ever needed this functionality. I would be most appreciative of any assistance since no one in the telerik forums know. .Columns(columns => { columns.Command(commands => { commands.Edit().ButtonType(ButtonType); commands.Delete().ButtonType(ButtonType); }).Width(90).Visible(???); Thanks! AZee

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• Problem with Regex in .NET (C#)

  - by Craig Bovis

  I'm trying to write a a regex to validate a string to match the following rules. Must start with a-z (case insensitive) Must only contain a-z A-Z 0-9 . - I've put something together based on my limited knowledge and ran it through an online testing tool for a whole bunch of situations and the results were as I had hoped however when I place the pattern into my .NET code it doesn't match correctly. The pattern I am using is, [a-zA-Z][a-zA-Z0-9.\-]* Is this the correct pattern or am I barking up the wrong tree? Some examples of what I'm expecting. craig.bovis - VALID 24craig - INVALID craig@bovis - INVALID craig24 - VALID -craig24 - INVALID craig24.bovis-test - VALID

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• Asp.NET 1.1 HttpResponse headers

  - by Yeti

  Hi, i have part of Asp.NET 1.1 project. I work with remote site, which works incorrect in some cases - sometimes it write incorrect Content-Encoding header. In my code i get HttpResponse from this remote site. And if Content-Encoding header is equals, for example, "gzip", i need to set Content-Encoding header to "deflate". But there is no properties or methods in HttpResponse class to get Content-Encoding header. Content-Encoding property returns, in my case, "UTF-8". In Watch window i see _customProperties field, which contain wrong string value. How can i change header value with Asp.NET 1.1?

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• Unix RPC programming

  - by Abhi

  Heyy all, I needed some help with ONC RPC programming. My task is to create two-tier client-server architecture wherein one main server (something like a directory) keeps a track of level-two servers and acts as a lookup; the level-two servers exposing some trivial functions, and finally, the clients for level-two servers. The clients ask the directory where a server is located, and then communicate with it. Using RPCGEN, we can create a pair of client-server code; however, the clients in this case need to have stubs for the directory as well as the level-two functions. Being a newbie to RPC, I'm having trouble conceptualizing the way I should code this. How can I call a function from a different server if a client is generated using a different IDL ? Any pointers would be appreciated :) Regards, Abhi

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• C#, WinForms: Why aren't KeyDown events chaining up to Form? I have to add event handler to each chi

  - by blak3r

  As i understand it, when a button is pressed it should first invoke the Control which has focus' KeyDown Handler, then it call the KeyDown handler for any Parent controls, all the way up to the main form. The only thing that would stop the chain would be if somewhere along the chain one of the EventHandlers did: e.SuppressKeyPress = true; e.Handled = true; In my case, KeyDown events never get to the main form. I have Form - Panel - button for example. Panel doesn't offer a KeyDown Event, but it shouldn't stop it from reaching the main form right? Right now as a work around I set every single control to call an event handler I wrote. I'm basically trying to prevent Alt-F4 from closing the application and instead minimize it.

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• Semi-transparent PNG Image on transparent Form

  - by Marco Bruggmann

  Hello, I have a problem dealing with transparent images on transparent Forms. I have been trying and looking for a solution but nothing useful came up. The problem is: I have a Form, this Form has a Panel and the Panel has a PictureBox. Form and Panel are transparent. Now, if the image of the PictureBox has no semi-transparent it works. But if there is a gradient transparency then the "transparent color" is shown. I need the Panel and the PictureBox, so the PerPixelAlpha does not apply for this case. The Form will also have more Controls that should be visible and non transparent (just the PNG image should be transparent). The image below shows: [Left] When the Panel is not transparent. [Center] When the Panel is transparent. [Right] Desired effect (done with PerPixelAlpha). http://www.freeimagehosting.net/uploads/3937fe974d.jpg THX Marco

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• Composite events in locally scoped regions with Prism (CAL)

  - by Shaddix

  I'm starting to train Prism (CAL) with a small application and faced some problems. I'm creating multiple instances of my MainView, which itself contains some regions, and display them in the Shell. I'm using locally scoped regions to easily handle view injections within my MainView. Currently I'm searching for a way of communication between the views (viewModels) inside the MainView. Composite events could do it, but when I publish those events, they are handled in all instances of my MainView, which I really don't want. Is there a way of raising "locally scoped" composite events like with locally scoped regions? Or may be there's a better way of communicating between views in my case?

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• Modifying an old Windows program not to call exit after a keypress without source access

  - by rustyn2

  I have an older C++ Windows program that I've been asked to get run in a kiosk style environment for a student project. From the main menu, hitting ESC will exit the program, which is undesirable. In ye olden days I would have trapped the keyboard interrupt or whatever and dug around to NOOP whatever JMP or CALL was getting referenced in the case statement that likely decides all that, but on Windows everything goes through various registered event handlers, and I haven't done any windows internals work in about 10 years. Is there a good tool to breakpoint a program on certain WM_EVENT (WM_KEYDOWN being a prime target) messages or similar, so that I can narrow down where in the executable the check is made? I'm currently stepping back from various potential system calls made before the various thread cleanups and final exit calls but it seems like there has to be a better way to do this that I'm forgetting.

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• Converting time to Military

  - by Chris

  Maybe I'm seeing things.. In an attempt to turn a date with a format of "mm/dd/yyyy hh:mm:ss PM" into military time, the following replacement of a row value does not seem to take. Even though I am sure I have done this before (with column values other than dates). Is there some reason that row["adate"] would not accept a value assigned to it in this case? DateTime oos = DateTime.Parse(row["adate"].ToString()); row["adate"] = oos.Month.ToString() + "/" + oos.Day.ToString() + "/" + oos.Year.ToString() + " " + oos.Hour.ToString() + ":" + oos.Minute.ToString();

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• can't update rails model

  - by Tristan

  Hi there, I'm rather new to rails. I have a controller that's attempting to update a model using the following code: @test = Product.find(1) @test.increment!(:price) It does successfully retrieve the Product from the database, but does not update the price attribute. Does anyone know why this might be the case, or how I could get more feedback on what the problem is? Thanks a bunch! Tristan edit: price is an integer with value 0. I get the same problem when I set the price with @test.price=50 and then @test.save .

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• C++: Dependency injection, circular dependency and callbacks

  - by Jonathan

  Consider the (highly simplified) following case: class Dispatcher { public: receive() {/*implementation*/}; // callback } class CommInterface { public: send() = 0; // call } class CommA : public CommInterface { public: send() {/*implementation*/}; } Various classes in the system send messages via the dispatcher. The dispatcher uses a comm to send. Once an answer is returned, the comm relays it back to the dispatcher which dispatches it back to the appropriate original sender. Comm is polymorphic and which implementation to choose can be read from a settings file. Dispatcher has a dependency on the comm in order to send. Comm has a dependency on dispatcher in order to callback. Therefor there's a circular dependency here and I can't seem to implement the dependency injection principle (even after encountering this nice blog post).

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• Is there a J2SE sensor API?

  - by Martin Strandbygaard

  Does anyone know of a "standardized" Java API for working with sensors, and which is closely tied to J2ME as is the case with JSR 256? I'm writing a Java library for interfacing with a sensor network consisting of several different types of sensors (mostly simple stuff such as temperature, humidity, GPS, etc.). So far I've rolled my own interface, and users have to write apps against this. I would like to change this approach and implement a "standard" API so that implementations aren't that closely tied to my library. I've looked at JSR 256, but that really isn't a great solution as it's for J2ME, and my library is mostly used by Android devices or laptops running the full J2SE.

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• How to build a java applet?

  - by Stefano Borini

  Most of the tutorials around explain how to create a java applet: create a .java file with a class, compile it with javac, put the .class somewhere, add a proper tag in the html. However, I'm not able to find anything about the best practices to build and release a complex applet, made of multiple classes and with additional libraries. How is the build/release process for this case ? What is it needed to go from my java project to the final .jar to put on the web ? I'm working with pure Eclipse, no plugins.

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• Exporting tasks to 'C using DPI

  - by Alphaneo

  I have an verilog based test-bench, interfaced to 'C source using DPI. Now using DPI I am planning to write my whole firmware. To do this I need 3 things Register Read Register Write Interrupt handler As I understand, register reads and writes are tasks that I need to export from the RTL test-bench. And Interrupt handler (I implemented by importing a function from 'C). I checked most the cadence documentation and found no useful hints. I have also registered with cadence users community but it seems that I cannot ask question till they approve my registration. Just in case someone is aware of this, would appreciate their help.

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• How to connect to SqlExpress for Entity Framework using Visual Studio 2010 Express?

  - by Mike

  Hi everyone, I'm trying to use the Visual Studio 2010 Express editions to set up an ASP.NET MVC 2 Web Application using SqlExpress + Entity Framework as the data access. I have both the "C# Edition" and "Web Developer Edition" installed. If I try to add a data source using the "C# edition", I'm missing the "Microsoft SQL Server" data source type. but Visual Studio 2008 Professional has it. as noted by another StackOverflow question, the "Web Developer Edition" has this. However, the Web Developer Edition doesn't support the Entity Framework items: . I'd want to stick with only the Express Editions. Is my use case one that Microsoft forgot about? What can I do here to use SqlExpress + MVC 2 + Entity Framework? Thanks! -Mike

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