Search Results

Search found 74153 results on 2967 pages for 'test and set'.

Page 551/2967 | < Previous Page | 547 548 549 550 551 552 553 554 555 556 557 558  | Next Page >

  • What C# container is most resource-efficient for existence for only one operation?

    - by ccornet
    I find myself often with a situation where I need to perform an operation on a set of properties. The operation can be anything from checking if a particular property matches anything in the set to a single iteration of actions. Sometimes the set is dynamically generated when the function is called, some built with a simple LINQ statement, other times it is a hard-coded set that will always remain the same. But one constant always exists: the set only exists for one single operation and has no use before or after it. My problem is, I have so many points in my application where this is necessary, but I appear to be very, very inconsistent in how I store these sets. Some of them are arrays, some are lists, and just now I've found a couple linked lists. Now, none of the operations I'm specifically concerned about have to care about indices, container size, order, or any other functionality that is bestowed by any of the individual container types. I picked resource efficiency because it's a better idea than flipping coins. I figured, since array size is configured and it's a very elementary container, that might be my best choice, but I figure it is a better idea to ask around. Alternatively, if there's a better choice not out of resource-efficiency but strictly as being a better choice for this kind of situation, that would be nice as well.

    Read the article

  • What is the appropriate granularity in building a ViewModel?

    - by JasCav
    I am working on a new project, and, after seeing some of the difficulties of previous projects that didn't provide enough separation of view from their models (specifically using MVC - the models and views began to bleed into each other a bit), I wanted to use MVVM. I understand the basic concept, and I'm excited to start using it. However, one thing that escapes me a bit - what data should be contained in the ViewModel? For example, if I am creating a ViewModel that will encompass two pieces of data so they can be edited in a form, do I capture it like this: public PersonAddressViewModel { public Person Person { get; set; } public Address Address { get; set; } } or like this: public PersonAddressViewModel { public string FirstName { get; set; } public string LastName { get; set; } public string StreetName { get; set; } // ...etc } To me, the first feels more correct for what we're attempting to do. If we were doing more fine grain forms (maybe all we were capturing was FirstName, LastName, and StreetAddress) then it might make more sense to go down to that level. But, I feel like the first is correct since we're capturing ALL Person data in the form and ALL Address data. It seems like it doesn't make sense (and a lot of extra work) to split things apart like that. Appreciate any insight.

    Read the article

  • Should this work?

    - by Noah Roberts
    I am trying to specialize a metafunction upon a type that has a function pointer as one of its parameters. The code compiles just fine but it will simply not match the type. #include <iostream> #include <boost/mpl/bool.hpp> #include <boost/mpl/identity.hpp> template < typename CONT, typename NAME, typename TYPE, TYPE (CONT::*getter)() const, void (CONT::*setter)(TYPE const&) > struct metafield_fun {}; struct test_field {}; struct test { int testing() const { return 5; } void testing(int const&) {} }; template < typename T > struct field_writable : boost::mpl::identity<T> {}; template < typename CONT, typename NAME, typename TYPE, TYPE (CONT::*getter)() const > struct field_writable< metafield_fun<CONT,NAME,TYPE,getter,0> > : boost::mpl::false_ {}; typedef metafield_fun<test, test_field, int, &test::testing, 0> unwritable; int main() { std::cout << typeid(field_writable<unwritable>::type).name() << std::endl; std::cin.get(); } Output is always the type passed in, never bool_.

    Read the article

  • How can I make image opaque to some level?

    - by Nikki
    hello everyone....... I would like to know if I can make an image opaque if set in image view or set as background of relative layout. How ca I make image opaque using image view or relative layout for setting the image dynamically or Is there any other option to set image and its opacity dynamically? I also want the same image to rotate in both directions and also can zoomin and zoomout to anylevel. Thanks in advance

    Read the article

  • Using database default values with Linq to SQL codewise

    - by Ivo
    I am using Dynamic Data with linq to SQL and SQL Server 2008. I have a GUID column that gets his value from the default value with newguid(). When I set IsDbGenerated to true in the designer it works like a charm. But when I renew table this property is set back to false again. So I added it to the metadata. For some reason it's not being pickup, "00000000-0000-0000-0000-000000000000" is being inserted in database. The displayname and readonly change are being pick up. What am I missing? [MetadataType(typeof(CMS_Data_HistoryMetadata))] public partial class CMS_Data_History { } [TableName("Content")] public class CMS_Data_HistoryMetadata { [DisplayName("Pagina Title")] public object pageTitleBar { get; set; } [ReadOnly(true)] [DisplayName("Versie")] public object version_date { get; set; } [ColumnAttribute(IsDbGenerated = true)] public object entity_id; }

    Read the article

  • What does a forward slash before a pipe in cmd do to remove the line ending of an echo?

    - by user66001
    This code: @echo off echo/|set /p ="Executing backup...." echo/|set /p =" backup procedure" ... came from Echoing in the same line and produces the below output in a cmd window: Executing backup....backup procedure However, I cant seem to find an explanation through google on what the forward slash does to the ¿pipe? to cause set's output to be echoed to the console / stdout If anyone could also suggest a good website for learning more about cmd / cmd programs' features like this, it would be appreciated.

    Read the article

  • Jquery, how to escape quotes

    - by Sandro Antonucci
    I'm using a simple jquery code that grabs html code form a tag and then puts this content into a form input <td class="name_cat" ><span class="name_cat">It&#039;s a &quot;test&quot; </span> (5)</td> jquery gets the content into span.name_catand returns it as It's a "test". So when I print this into an input it becomes <input value="It's a "test"" /> which as you can imagine will only show as It's a , the following double quote will close the value tag. What's the trick here to keep the original string while not showing utf8 code in the input? Jquery code $(".edit_cat").click(function(){ tr = $(this).parents("tr:first"); id_cat = $(this).attr("id"); td_name = tr.find(".name_cat"); span_name = tr.find("span.name_cat").html(); form = '<form action="/admin/controllers/edit_cat.php" method="post" >'+ '<input type="hidden" name="id_cat" value="'+id_cat+'" />'+ '<input type="text" name="name_cat" value="'+span_name+'" />'+ '<input type="submit" value="save" />'+ '</form>'; td_name.html(form); console.log(span_name); } ); I basically need html() not to decode Utf8

    Read the article

  • Asp.net MVC - Model binding image button

    - by big dave
    I've got a very complex form and i'm using the MVC model binding to capture all the information I've got it set up to capture all the different submissions that can happen as there are about 10 different submit buttons on the form, and there are also 2 image buttons I tried to get a bit clever (or so i thought) with capturing the image button submissions, and have created a child class so that i can capture the x value that's returned public class ImageButtonViewData { public int x { get; set; } public string Value { get; set; } } The parent class looks something like this public class ViewDataObject { public ImageButtonViewData ImageButton { get; set; } public ViewDataObject(){ this.ImageButton = new ImageButton(); } } The html for the image button then looks like <input type="image" id="ViewDataObject_ImageButton" name="ViewDataObject.ImageButton" /> This works fine in all browsers except for Chrome. When i debug it in chrome, the Request.Form object contains the values that i would expect, but after the model binding has occurred, the ImageButton property on the ViewDataObject has been set to null The only difference that i can see between the submission values is that Chrome passes the x as lower case (ViewDataObject.ImageButton.x) and IE passes it as upper case (ViewDataObject.ImageButton.X) but i didn't think that model binding took any notice of casing on property names Does anyone have any ideas ?

    Read the article

  • Is there a way to specify a per-host deploy_to path with Capistrano?

    - by Chad Johnson
    I have searched and searched and asked a question already and have not received a clear answer. I have the following deploy script (snippet): set :application, "testapplication" set :repository, "ssh://domain.com//srv/hg/#{application}" set :scm, :mercurial set :deploy_to, "/srv/www/#{application}" role :web, "domain1.com", "domain2.com" role :app, "domain1.com", "domain2.com" role :db, "domain1.com", :primary => true, :norelease => true role :db, "domain2.com", :norelease => true As you see, I have set deploy_to to a specific path. And, I also have specified multiple web servers. However, each web server should have a different deployment path. I want to be able to run "cap deploy" and deploy to all hosts in one shot. I am NOT trying to deploy to staging and then to production. This is all production. My question is: how exactly do I specify a path per server? I have read the "Roles" documentation for Capistrano, and this is unclear. Can someone please post a deploy file example? I have read the documentation, and it is unclear how to do this. Does anyone know? Am I crazy? Am I thinking of this wrong or something? No answers anywhere online. Nowhere. Nothing. Please, someone help.

    Read the article

  • Universal control - simple question about dock and anchor

    - by Vytas999
    I use Visual Studio .NET to develop internal applications. I create a Windows control that will display custom status bar information. Different developers will use the control to display the same information in many different applications. The control must always be displayed at the bottom of the parent form in every application. It must always be as wide as the form. When the form is resized, the control should be resized and repositioned accordingly. How should I do that in the best way and why? A)Create a property to allow the developers to set the Dock property of the control. Set the default value of the property to AnchorStyle.Bottom. B) Create a property to allow the developer to set the Anchor property of the control. Set the default value of the property to AnchorStyle.Bottom.

    Read the article

  • Alter a function as a parameter before evaluating it in R?

    - by Shane
    Is there any way, given a function passed as a parameter, to alter its input parameter string before evaluating it? Here's pseudo-code for what I'm hoping to achieve: test.func <- function(a, b) { # here I want to alter the b expression before evaluating it: b(..., val1=a) } Given the function call passed to b, I want to add in a as another parameter without needing to always specify ... in the b call. So the output from this test.func call should be: test.func(a="a", b=paste(1, 2)) "1" "2" "a" Edit: Another way I could see doing something like this would be if I could assign the additional parameter within the scope of the parent function (again, as pseudo-code); in this case a would be within the scope of t1 and hence t2, but not globally assigned: t2 <- function(...) { paste(a=a, ...) } t1 <- function(a, b) { local( { a <<- a; b } ) } t1(a="a", b=t2(1, 2)) This is somewhat akin to currying in that I'm nesting the parameter within the function itself. Edit 2: Just to add one more comment to this: I realize that one related approach could be to use "prototype-based programming" such that things would be inherited (which could be achieved with the proto package). But I was hoping for a easier way to simply alter the input parameters before evaluating in R.

    Read the article

  • Oracle global_names DELETE problem

    - by jyzuz
    I'm using a database link to execute a DELETE statement on another DB, but the DB link name doesn't conform to global naming, and this requirement cannot change. Also I have global_names set to false, and cannot be changed either. When I try to use these links however, I receive: ORA-02069: - global_names parameter must be set to TRUE for this operation Cause: A remote mapping of the statement is required but cannot be achieved because GLOBAL_NAMES should be set to TRUE for it to be achieved. - Action: Issue `ALTER SESSION SET GLOBAL_NAMES = TRUE` (if possible) What is the alternative action when setting global_names=true is not possible? Cheers, Jean

    Read the article

  • java setting resolution and print size for an Image

    - by Ingrid
    I wrote a program that generates a BufferedImage to be displayed on the screen and then printed. Part of the image includes grid lines that are 1 pixel wide. That is, the line is 1 pixel, with about 10 pixels between lines. Because of screen resolution, the image is displayed much bigger than that, with several pixels for each line. I'd like to draw it smaller, but when I scale the image (either by using Image.getScaledInstance or Graphics2D.scale), I lose significant amounts of detail. I'd like to print the image as well, and am dealing with the same problem. In that case, I am using this code to set the resolution: HashPrintRequestAttributeSet set = new HashPrintRequestAttributeSet(); PrinterResolution pr = new PrinterResolution(250, 250, ResolutionSyntax.DPI); set.add(pr); job.print(set); which works to make the image smaller without losing detail. But the problem is that the image is cut off at the same boundary as if I hadn't set the resolution. I'm also confused because I expected a larger number of DPI to make a smaller image, but it's working the other way. I'm using java 1.6 on Windows 7 with eclipse.

    Read the article

  • Provider not notified from cookbook_file

    - by wittyhandle
    I'm working on an ssl provider using Vagrant (1.0.5) and chef-solo (10.12.0) I have my provider, called ssl within a cookbook called gtm_cq, I define it as such in my cookbook's default recipe: gtm_cq_ssl "author" do # attributes will come later end I then have my cookbook_file like below that should notify my ssl provider's import action once it pushes the cert up to the server: cookbook_file "#{node[:cq][:ssl][:author_cert_location]}/foo.cer" do source "foo.cer" owner "crx" group "root" mode "0644" notifies :import, resources(:gtm_cq_ssl => "author") end When I run this, the foo.cer gets pushed up as expected, but the import action of my ssl provider is never called. The most I see of any reference is these couple of lines in the log (removed log headers): .. cookbook_file[/opt/cq5/author/foo.cer] sending import action to gtm_cq_ssl[author] (delayed) .. Processing gtm_cq_ssl[author] action import (gtm_cq::author line 34) There's a large very obvious log statement as well as the use of another cookbook_file for a test file to push something up to the server. No log statement, no test file pushed. I'm certain too that the foo.cer file is removed from the server before each test. I found that if I edit my notifies line like so with :immediately notifies :import, resources(:gtm_cq_ssl => "author"), :immediately It seems to work. And I suppose this is ok in my particular case, but it would seem something is not right if that's the only way I can call my provider. Any help on this would be greatly appreciated. Thanks!

    Read the article

  • T-SQL: if exists always return true ?

    - by msfanboy
    Hello, What do you think , does the Stored Procedure always return 1 ? I am concerned about the if exists(..) BEGIN DECLARE @IsUserExisting bit SET NOCOUNT ON IF Exists ( Select null FROM G_User WHERE SamAccountName = @SamAccountName AND NetBIOSDomainName = @NetBIOSDomainName ) BEGIN SET @IsUserExisting = 1 END ELSE BEGIN SET @IsUserExisting = 0 END Select @IsUserExisting END

    Read the article

  • Mvc3 IEnumerable<QuestionModel> have a List<QuestionOptionModel> property. When I post, I get null list

    - by user1649439
    There is a example here. I am trying to use this technique in a large form with a list(List) but when I post back, the Viewmodel.Order that should’ve contained list of items and activities return with the lists empty. My QuestionModel.cs like this. public int Id { get; set; } public string QuestionText { get; set; } public System.Nullable<bool> OptionType1 { get; set; } public System.Nullable<bool> OptionType2 { get; set; } public List<QuestionOptionModel> OptionList = new List<QuestionOptionModel>(); When I post back "IEnumerable questions" List OptionList comes null. How can I do this?

    Read the article

  • Why doesn't String's hashCode() cache 0?

    - by polygenelubricants
    I noticed in the Java 6 source code for String that hashCode only caches values other than 0. The difference in performance is exhibited by the following snippet: public class Main{ static void test(String s) { long start = System.currentTimeMillis(); for (int i = 0; i < 10000000; i++) { s.hashCode(); } System.out.format("Took %d ms.%n", System.currentTimeMillis() - start); } public static void main(String[] args) { String z = "Allocator redistricts; strict allocator redistricts strictly."; test(z); test(z.toUpperCase()); } } Running this in ideone.com gives the following output: Took 1470 ms. Took 58 ms. So my questions are: Why doesn't String's hashCode() cache 0? What is the probability that a Java string hashes to 0? What's the best way to avoid the performance penalty of recomputing the hash value every time for strings that hash to 0? Is this the best-practice way of caching values? (i.e. cache all except one?) For your amusement, each line here is a string that hash to 0: pollinating sandboxes amusement & hemophilias schoolworks = perversive electrolysissweeteners.net constitutionalunstableness.net grinnerslaphappier.org BLEACHINGFEMININELY.NET WWW.BUMRACEGOERS.ORG WWW.RACCOONPRUDENTIALS.NET Microcomputers: the unredeemed lollipop... Incentively, my dear, I don't tessellate a derangement. A person who never yodelled an apology, never preened vocalizing transsexuals.

    Read the article

  • PostgreSQL function to iterate through/act on many rows with state

    - by Claudiu
    I have a database with columns looking like: session | order | atype | amt --------+-------+-------+----- 1 | 0 | ADD | 10 1 | 1 | ADD | 20 1 | 2 | SET | 35 1 | 3 | ADD | 10 2 | 0 | SET | 30 2 | 1 | ADD | 20 2 | 2 | SET | 55 It represents actions happening. Each session starts at 0. ADD adds an amount, while SET sets it. I want a function to return the end value of a session, e.g. SELECT session_val(1); --returns 45 SELECT session_val(2); --returns 55 Is it possible to write such a function/query? I don't know how to do any iteration-like things with SQL, or if it's possible at all.

    Read the article

  • Concatenating a Text in front of Individual Database Records with Tcl

    - by DFM
    Hello: In short, currently I am using the following code to pull records from multiple tables in a Sqlite Db and insert them in a single combobox ($SearchBar): set SrchVals1 [db eval {SELECT DISTINCT Stitle From Subcontract Order By Stitle ASC}] set SrchVals2 [db eval {... set SrchVals3 ... set SrchValsALL [concat $SrchVals1 $SrchVals2 $SrchVals3] $SearchBar configure -value $SrchValsAll For the variable "SrchVals1", I am trying to figure out a way to concatenate the text "Sub: " to each individual record in SrchVals1. For example, if SrchVals1 shows the following records in the combobox: First Title Second Title Third Title I would like to concatenate so that the records in the combobox look like this: Sub: First Title Sub: Second Title Sub: Third Title I understand that I might have to use a foreach statement; however, I am having no luck writing one that adds "Sub: " in front of each record, as opposed to one. This seems like something that should be pretty easy, but I cannot seem to figure it out. Does anyone know how I can achieve these results? Thank you, DFM

    Read the article

  • calling two functions sequentially in vbscript with single click event

    - by sushant
    i need to call two function on a single click event. and also the functions shud get executed sequentially. i tried click me . but its not working.its not calling any of the functions. here is the complete code. sorry for formatting. function copy() Dim WshShell, oExec,g,h h="D:\d" g="xcopy " & h & " " & "D:\y\ /E" Set WshShell = CreateObject("WScript.Shell") Set oExec = WshShell.Exec(g) Do While oExec.Status = 0 WScript.Sleep 100 Loop WScript.Echo oExec.Status end function function zip() Dim WshShel, oExe Set WshShel = CreateObject("WScript.Shell") Set oExe = WshShel.Exec("cmd /c cd D:\d & D: & winzip32.exe -min -a D:\a") Do While oExe.Status = 0 WScript.Sleep 100 Loop WScript.Echo oExe.Status end function click me any help is appreciated.

    Read the article

  • Objective C - Custom Getter with inheritance

    - by anhdat
    Recently I have worked with Core Data. When I want to set a default value for some fields, I came up with this problem: So I made a simple represent: We have 2 class Parent and Child, in which Child inherit from Parent. // Parent.h @interface Parent : NSObject @property (strong, nonatomic) NSString *lastName; // Child.h @interface Child : Parent In Parent class, I made a custom getter to set a default value when nothing is set: // Parent.h - (NSString *)lastName { if (_lastName) { return _lastName; } else { return @"Parent Default Name"; } } But I cannot make a custom default value for the field "name" which Child inherits from its Parent. // Child.h @implementation Child - (NSString *)lastname { if (super.lastName) { return super.lastName; } else { return @"Child Default Name"; } } Apparently, this method is never called. So my question here is: How can I set a custom getter for the field the Child class inherits from Parent without define an overriding property?

    Read the article

  • Project Euler #119 Make Faster

    - by gangqinlaohu
    Trying to solve Project Euler problem 119: The number 512 is interesting because it is equal to the sum of its digits raised to some power: 5 + 1 + 2 = 8, and 8^3 = 512. Another example of a number with this property is 614656 = 28^4. We shall define an to be the nth term of this sequence and insist that a number must contain at least two digits to have a sum. You are given that a2 = 512 and a10 = 614656. Find a30. Question: Is there a more efficient way to find the answer than just checking every number until a30 is found? My Code int currentNum = 0; long value = 0; for (long a = 11; currentNum != 30; a++){ //maybe a++ is inefficient int test = Util.sumDigits(a); if (isPower(a, test)) { currentNum++; value = a; System.out.println(value + ":" + currentNum); } } System.out.println(value); isPower checks if a is a power of test. Util.sumDigits: public static int sumDigits(long n){ int sum = 0; String s = "" + n; while (!s.equals("")){ sum += Integer.parseInt("" + s.charAt(0)); s = s.substring(1); } return sum; } program has been running for about 30 minutes (might be overflow on the long). Output (so far): 81:1 512:2 2401:3 4913:4 5832:5 17576:6 19683:7 234256:8 390625:9 614656:10 1679616:11 17210368:12 34012224:13 52521875:14 60466176:15 205962976:16 612220032:17

    Read the article

  • Error when using jquery webservice call to populate dropdownlist

    - by bugz
    For some reason when i tested parsing a json string to a dropdownlist it worked doing this var json = [{ "Id": "12345", "WorkUnitId": "SR0001954", "Description": "Test Service Request From Serena", "WorkUnitCategory": "ServiceRequest" }, { "Id": "12355", "WorkUnitId": "WOR001854", "Description": "Test Work Order From Serena", "WorkUnitCategory": "ServiceRequest" }, { "Id": "12365", "WorkUnitId": "DBR001274", "Description": "Test Database Related Service Request From Serena", "WorkUnitCategory": "ServiceRequest"}]; $(json).each(function() { comboboxWorkUnit.append($('<option>').val(this.Id).text(this.WorkUnitId)); }); However when i tryed taking the json from my webservice and placing it into the dropdownlist i get an error saying the dropdownlist doesnt support this metod. $.ajax({ type: "POST", url: "Services/WorkUnitService.asmx/WorkUnit", data: "{'Number' : '" + Number.text() + "','Id': '" + combobox.val() + "','workerType': '" + EmployeeType + "'}", contentType: "application/json; charset=utf-8", dataType: "json", success: function(json) { $(json).each(function() { comboboxWorkUnit.append($('<option>').val(this.Id).text(this.WorkUnitId)); }); } }); I also tried which called the webservice method but through an error $.postJSON("Services/WorkUnitService.asmx/WorkUnitsForParAndPhase", "{'parNumber' : '" + parNumber + "','phaseId': '" + combobox.val() + "','workerType': '" + EmployeeType + "'}", function(data) { alert(data.toString()); }); And i tryed this which never called the webservice $.getJSON('Services/WorkUnitService.asmx/WorkUnitsForParAndPhase' + parNumber + '/' + combobox.val() + '/' + EmployeeType, function(myData) { alert(myData.toString()); });

    Read the article

  • how to align 4 DIV's right of each other within another DIV

    - by Michel
    Hi, i want to position 4 divs next to each other, at a certain position within the parent div. So the div structure is this (i'll call the top most div the maindiv): <div> <div>1</div> <div>2</div> <div>3</div> <div>4</div> </div> now i want to set div with text '1' at the left in the maindiv now i want to set div with text '2' at 50 px from the left side in the maindiv now i want to set div with text '3' at 150 px from the left side in the maindiv now i want to set div with text '4' at 200 px from the left side in the maindiv I think :-) i have tried ALL possible css constructs, but it didn't work, sadly. Anyone an idea?

    Read the article

< Previous Page | 547 548 549 550 551 552 553 554 555 556 557 558  | Next Page >