Search Results

Search found 3518 results on 141 pages for 'arguments'.

Page 92/141 | < Previous Page | 88 89 90 91 92 93 94 95 96 97 98 99  | Next Page >

• Can I add and remove elements of enumeration at runtime in Java

  - by Brabster

  It is possible to add and remove elements from an enum in Java at runtime? For example, could I read in the labels and constructor arguments of an enum from a file? @saua, it's just a question of whether it can be done out of interest really. I was hoping there'd be some neat way of altering the running bytecode, maybe using BCEL or something. I've also followed up with this question because I realised I wasn't totally sure when an enum should be used. I'm pretty convinced that the right answer would be to use a collection that ensured uniqueness instead of an enum if I want to be able to alter the contents safely at runtime.

  Read the article

• Drupal: How to render a form and table on same page

  - by Aaron

  Can someone help me render a form and table on the same page? I'm sure it's easy, but can't think of how to do it. Here's hook_menu: function ncbi_subsites_menu() { $items = array(); $items['admin/content/ncbi_subsites'] = array( 'title' => 'NCBI Subsites Module', 'description' => 'Informs Drupal about NCBI subsites as defined by the Content Inventory database', 'page callback' => 'ncbi_subsites_show_main_page', 'access arguments' => array( 'administer site configuration' ), 'type' => MENU_NORMAL_ITEM, ); return $items; } Here's the callback: function ncbi_subsites_show_main_page() { $subsites = ncbi_subsites_get_subsites_from_inventory(); // fnc returns associative array from inventory, defined in include return ncbi_subsites_make_table( $subsites ); } In the callback I call some helper functions that return a themed, paged table. What I want is a small form above the table. How would I that?

  Read the article

• How do I get the CoreData Debug argument to output to the console?

  - by radesix

  According to Apple documentation on debugging Core Data it says we should be able to pass an argument to the application which will output the SQL core data sends to SQLite. I have gone into the arguments tab of my executable in XCode and specified the argument: -com.apple.CoreData.SQLDebug 1 However, I see no SQL in the console. I then tried to use this parameter in the CoreDataBooks application provided by Apple just in case there was some other issue in MY program. Even in Apple's example I get no SQL output in the console. Am I doing something wrong? Is Apple's documentation wrong? Should I be looking someplace other than the console? Has anyone else had success with this argument?

  Read the article

• helper function not found in view

  - by cbrulak

  I'm following the instructions at: http://agilewebdevelopment.com/plugins/acts_as_taggable_on_steroids to add the tag cloud to my view: in the controller: class PostController < ApplicationController def tag_cloud @tags = Post.tag_counts end end I also added the tag_cloud method as a helper method in the controller and in the view: <% tag_cloud @tags, %w(css1 css2 css3 css4) do |tag, css_class| %> (line 1) <%= link_to tag.name, { :action => :tag, :id => tag.name }, :class => css_class %> (line2) <% end %> (line 3) However: 1) if I don't add the helper_method :tag_cloud in the controller I get a undefined method error for tag_cloud 2) if I do add the helper method I get: wrong number of arguments (2 for 0) on the same line 1 of my sample code above. Suggestions?

  Read the article

• Need some explanation about MS Ajax using PageMethods

  - by Ahmed Said

  I have a project that uses PageMethods to call functions on the server. The server functions (written in C#) return the values as array of strings, without doing any kind of serialization and in the client side (from Js) the accessing of the return values is by using static variable called arguments. I found that sometimes for some users (cases are not repro) sometimes an exception occured "WebServiceFailedException the server method 'Foo' returned invalid data. the 'd' property is missing from JSON." Some searching on google I found that people are serializing the return values using DataContractJsonSerializer class and in js accessing the return value using one of the callback function Example: function OnRequestComplete(result, userContext, methodName) { var Person = eval('(' + result + ')'); alert(Person.Forename); alert(Person.Surname); } So is the first technique is correct? or what?

  Read the article

• What are the things Java got right?

  - by hamletdarcy

  What are the things that Java (the language and platform) got categorically right? In other words, what things are more recent programming languages preserving and carrying forward? Some easy answer are: garbage collection, a VM, lack of pointers, classloaders, reflection(?) What about language based answers? Please don't list the things Java did wrong, just right. (note by Mark Harrison) This is an interesting and useful question, especially for those of us who don't use java regularly. I'm voting for reopening. Please don't close as argumentative, as it doesn't seem to be causing any arguments.

  Read the article

• Is it legal for a C++ reference to be NULL?

  - by BCS

  A while back I ran into a bug the looked something like this: void fn(int &i) { printf(&i == NULL ? "NULL\n" : "!NULL\n"); } int main() { int i; int *ip = NULL; fn(i); // prints !NULL fn(*ip); // prints NULL return 0; } More recently, I ran into this comment about C++ references: [References arguments make] it clear, unlike with pointers, that NULL is not a possible value. But, as show above, NULL is a possible value. So where is the error? In the language spec? (Unlikely.) Is the compiler in error for allowing that? Is that coding guide in error (or a little ambiguous)? Or am I just wandering into the minefield known as undefined behavior?

  Read the article

• Error when rendering a partial (RoR) passing the form as a local variable

  - by Dmitriy Likhten

  In my main template I have the following: <%= render :partial => "delivery_date", :collection => @brand.delivery_dates, :locals => {:form => f} %> However when the partial tries to use the form local variable, I get this error Showing app/views/brands/_delivery_date.html.erb where line #2 raised: wrong number of arguments (0 for 1) Extracted source (around line #2): 1: <%= delivery_date.id %> 2: <%= form.text_field :name %> 3: <% new_or_existing = delivery_date.new_record? ? 'new' : 'existing' %> 4: <% prefix = "brand[#{new_or_existing}_delivery_date_attributes][]" %> 5: <% fields_for prefix, delivery_date do |dd_f| %> Does anyone understand what this error means? Actually I want to do <% form.fields_for delivery_date do |dd_f| %> but that fails as well.

  Read the article

• What is a good standard for code width?

  - by BillyONeal

  Hello everyone :) I've heard in several places that it's bad to have code that is too wide onscreen. For example: for (std::vector<EnumServiceInformation>::const_iterator currentService = services.begin(); currentService != services.end(); currentService++) However, I've heard many arguments for 80 character wide limits. I'm assuming this 80 character limit comes from the traditional command prompt, which is typically 80 characters wide. However -- most of us are working on something much better than a typical command prompt, and I feel that using an 80 character limit encourages use of variable names that are far too short and do not describe what the variable is used for. What is a reasonable limit for a new project with no existing coding width standard?

  Read the article

• What are the disadvantages of targeting the JVM instead of x86?

  - by Pindatjuh

  I'm developing a new language. My initial target was to compile to native x86 for the Windows platform, but now I am in doubt. I've seen some new languages target the JVM (most notable Scala and Clojure). Ofcourse it's not possible to port every language easily to the JVM; to do so may lead to small changes to the language and it's design. After posing this question, I even doubted more about this decision. I now know some "pro" JVM arguments. The original question was: is targetting the JVM a good idea, when creating a compiler for a new language? Updated the question: What are the disadvantages of targeting the JVM instead of x86 on Windows?

  Read the article

• Defining multiple VBA objects within one function or sub-routine?

  - by Harokitty

  I have the following VBA code: Option Explicit Private a(2) as Double Private b(2) as Double Public Function Hello(X1 As Double, X2 As Double) As Double a(1) = X1 + X2 a(2) = X1/X2 b(1) = X1 b(2) = X2^2 Hello = a(1)+a(2)+b(1)+b(2) End Function Within the function Hello I have defined a(1),a(2),b(1),b(2). However, I want to make some function or sub-routine that accepts X1 and X2 as arguments and spits out the values for a(1),a(2),b(1),b(2). This is because I use the above definitions for a(1),a(2),b(1),b(2) in about 20 functions in my module and would like to avoid having to do the following in each function that I use thesis in: a(1) = X1 + X2 a(2) = X1/X2 b(1) = X1 b(2) = X2^2

  Read the article

• Check if XML node is empty

  - by Vinit

  I have a simple XML structure like <main> <node1><!-- comments --><!-- comments --></node1> </main> and this can have any number of sub-nodes or values like: <main> <node1><!-- comments --><!-- comments --><p>texttext text</p> more text <br/></node1> </main> I want to check if the node is empty or not: I'm doing something like: <xsl:if test="string-length(main/node1//text())&gt;0"> But it does not work as if there are multiple tags, then string-length function will break coz of multiple arguments. Any help to solve this issue is really appreciated.

  Read the article

• Unable to type cast <AnonymousType#1> to <WindowsFormsApplication1.Attributes> [ C#3.0 ]

  - by Newbie

  I have List<Attributes> la = new List<Attributes>(); la = (from t in result let t1 = t.AttributeCollection from t2 in t1 where t2.AttributeCode.Equals(attributeType) let t3 = t2.TimeSeriesData from k in t3.ToList() where k.Key.Equals(startDate) && k.Key.Equals(endDate) select new { AttributeCode = attributeType, TimeSeriesData = fn(k.Key, k.Value.ToString()) }).ToList<Attributes>(); I am getting the error: 'System.Collections.Generic.IEnumerable<AnonymousType#1>' does not contain a definition for 'ToList' and the best extension method overload 'System.Linq.Enumerable.ToList<TSource>(System.Collections.Generic.IEnumerable<TSource>)' has some invalid arguments I understood tye error meaning but how to type cast it. I have used var and then iterating over it got the result. But without that any other way by which I can do it? Using C# 3.0 Thanks

  Read the article

• Hashing a python function to regenerate output when the function is modified

  - by Seth Johnson

  I have a python function that has a deterministic result. It takes a long time to run and generates a large output: def time_consuming_function(): # lots_of_computing_time to come up with the_result return the_result I modify time_consuming_function from time to time, but I would like to avoid having it run again while it's unchanged. [time_consuming_function only depends on functions that are immutable for the purposes considered here; i.e. it might have functions from Python libraries but not from other pieces of my code that I'd change.] The solution that suggests itself to me is to cache the output and also cache some "hash" of the function. If the hash changes, the function will have been modified, and we have to re-generate the output. Is this possible or ridiculous? Updated: based on the answers, it looks like what I want to do is to "memoize" time_consuming_function, except instead of (or in addition to) arguments passed into an invariant function, I want to account for a function that itself will change.

  Read the article

• How to assign the value of document.cookie to your browser cookies?

  - by Ricket

  I'm a developer (and therefore a tester) of a website. Our site accepts any JavaScript or HTML from an user but I haven't been successful in explaining the danger of it, as obvious as it is. So I would like to prove it by logging in as my boss to prove to him that there is definitely a real danger here. I think this will put down any of his arguments and let us move onto filtering content like this. (note this question is not about filtering, or other suggestions on JavaScript tricks) I already know how to steal the value of the document.cookie variable with AJAX and a PHP file, but once you have that string of name=value;name=value;..., how do you apply it to your own browser? This is programming related because I am asking about tools which will help me debug my web program.

  Read the article

• Copying a IO stream results in corruption.

  - by StackedCrooked

  I have a small Mongrel webserver that sends the stdout of a process to a http response: response.start(200) do |head,out| head["Content-Type"] = "text/html" status = POpen4::popen4(command) do |stdout, stderr, stdin, pid| stdin.close() FileUtils.copy_stream(stdout, out) FileUtils.copy_stream(stderr, out) puts "Sent response." end end This works well most of the time, but sometimes characters get duplicated. For example this is what I get from the "man ls" command: LS(1) User Commands LS(1) NNAAMMEE ls - list directory contents SSYYNNOOPPSSIISS llss [_O_P_T_I_O_N]... [_F_I_L_E]... DDEESSCCRRIIPPTTIIOONN List information about the FILEs (the current directory by default). Sort entries alphabetically if none of --ccffttuuvvSSUUXX nor ----ssoorrtt. Mandatory arguments to long options are mandatory for short options For some mysterious reason capital letters get duplicated. Can anyone explain what's going on?

  Read the article

• StructureMap IoC problem getting the instance in runtime

  - by user274269

  i have 2 concrete types "CategoryFilter" & "StopWordsFilter" that implements "IWordTokensFilter". Below is my setup: ForRequestedType<IWordTokensFilter>().TheDefaultIsConcreteType<CategoryFilter>() .AddInstances(x => { x.OfConcreteType<StopWordsFilter>(); } ); The problem is the run-time when structure map auto inject it on my class, bec. i have arguments with same plugin-type: public ClassA(IWordTokensFilter stopWordsFilter, IWordTokensFilter categoryFilter) i'm always getting CategoryFilter in my first argument but it should be stopWordsFilter. How can i setup this in a right way? thanks in advance

  Read the article

• Structuremap and creating objects with initial state

  - by Simon

  I have an object which needs a dependency injected into it public class FootballLadder { public FootballLadder(IMatchRepository matchRepository, int round) { // set initial state this.matchRepo = matchRepository; this.round = round; } public IEnumerable<LadderEntry> GetLadderEntries() { // calculate the ladder based on matches retrieved from the match repository // return the calculated ladder } private IMatchRepository matchRepo; private int round; } For arguments sake, lets assume that I can't pass the round parameter into the GetLadderEntries call itself. Using StructureMap, how can I inject the dependency on the IMatchRepository and set the initial state? Or is this one of those cases where struggling against the framework is a sign the code should be refactored?

  Read the article

• pyschool is wrong ?

  - by geekkid

  I'm currently learning python and trying to do exercises at pyschools (if anyone knows what it is). Anyway, i have an exercise that asks me to do the following : Write a function percent(value, total) that takes in two numbers as arguments, and returns the percentage value as an integer. Here's my code: def percent(value, total): percent = value / total * 100 return int(percent) It works great in my Python Idle and it gives all the correct answers. however, when i run it in the pyschools website, it says that , for example , when the function is called with parameters 46 and 90 , the function returns 0. However, in my python idle , it correctly returns 51. What might be the problem ? Thank you very much for your help!

  Read the article

• How to set the locale for a process launched by CreateProcess()

  - by VoidPointer

  When launching a process with CreateProcessW(), is it possible to have the process created with a different MBCP locale/codepage then the one that is configured as the system-wide default code page? In the target process, this should have the same effect as calling _setmbcp(). The target process is not a unicode-enabled and uses a plain main(int argc, char **argv) entry point. I would like to be able to select the code page to which unicode arguments passed to CreateProcessW() are converted to be different from the system's default codepage for non-unicode programs.

  Read the article

• How do I create two mutual producer/consumers with internal state in Haskell?

  - by Keith

  I've got an agent that takes in states and returns actions, while keeping an internal representation of the utility of state/action pairs. I've also got an environment that takes in actions and returns state/reward pairs. I need to be able to set the agent up with a start state and then continuously go from agent -(action)- environment -(state, reward)- agent -(action)-... However, the internal states (which need to be updated every iteration) need to stay private (that is, within the agent or the environment). This means that I can't simply call environment as a function within the agent using state and action as arguments. I'm somewhat of a Haskell noobie, so I'm not even sure if this is possible.

  Read the article

• Passing around objects to network packet handlers ?

  - by xeross

  Hey, I've been writing a networking server for a while now in C++ and have come to the stage to start looking for a way to properly and easily handle all packets. I am so far that I can figure out what kind of packet it is, but now I need to figure out how to get the needed data to the handler functions. I had the following in mind: Have a map of function pointers with the opcode as key and the function pointer as value Have all these functions have 2 arguments, packet and ObjectAccessor ObjectAccessor class contains various functions to fetch various items such as users and alike Perhaps pass the user's guid too so we can fetch it from the objectaccessor I'd like to know the various implementations others have come up with, so please comment on this idea and reply with your own implementations. Thanks, Xeross

  Read the article

• Find duplicates lines based on some delimited fileds on line

  - by Oliv

  Hello, I have a file with lines having some fields delimited by "|". I have to extract the lines that are identical based on some of the fileds (i.e. find lines which contain the same values for fields 1,2,3 12,and 13) Other fields contents have no importance for searching but the whole extracted lines have to be complete. Can anyone tell me how I can do that in KSH scripting (By exemple a script with some arguments (order dependent) that define the fileds separator and the fields which have to be compared to find duplicates lines in input file ) Thanks in advance and kind regards Oli

  Read the article

• Documented process for using facebook connect for the iPhone to upload photos

  - by Corey Floyd

  After looking I did come accross this post on the facebook forums: link They are feeding the facebook object a UIImage. That seems logical, but where is this documented? The API documentation is generalized to all platforms. Where are the iPhone specific requirements for arguments and their data types? Thanks **Update***** I still have not came across any API docs pertaining to Cocoa. I did, however, gather the information I needed by piecing together forum information, Facebook sample code, and some glue. Hopefully they'll issue something a little more concrete over the next few months.

  Read the article

• Retrieving Oracle Cursor with JDBC

  - by BeginnerAmongBeginners

  I have been experiencing some frustrations trying to make a simple Oracle cursor retrieval procedure work with JDBC. I keep on getting an error of "[Oracle][ODBC][Ora]ORA-06553: PLS-306: wrong number or types of arguments in call to 'GETNAME'", but I cannot figure out what I am doing wrong. Here is my code in Java: CallableStatement stmt = connection.prepareCall("call getName(?)"); stmt.registerOutputParameter(1, OracleTypes.CURSOR); stmt.execute(); stmt.close(); con.close(); Here is my procedure in Oracle: CREATE OR REPLACE PROCEDURE getName(cur out SYS_REFCURSOR) IS BEGIN OPEN cur FOR SELECT name FROM customer; END; Thanks in advance. By the way, I am working with Oracle 10.2.0.

  Read the article

< Previous Page | 88 89 90 91 92 93 94 95 96 97 98 99  | Next Page >