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  • Control Reference Static Method Performance

    - by dotnetguts
    I have just asked which one is better? Static Vs Non-Static? http://stackoverflow.com/questions/3016717/static-vs-non-static-method-performance-c I would like to take this discussion one step ahead. Consider If i pass reference of Panel control as parameter to Public static method, will static method still rules in performance?

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  • Modify a reference numbered group to match against

    - by StuperUser
    I want to match YYYY-YY for sequential years. I at moment I'm trying to match where all the second YY is the 3rd and 4th characters in YYYY with 1 added to it. So far I've got {19|20}(\d{2})-(\d{2}), but not sure how to use ? with reference to (1) or whether I'm going about this the right way and finding out the inevitable "unknown unknowns" (like YY99) with this approach? Edit: Matches: 2010-11,2011-12,2029-30 Not matches: 2010-12, 2010-09,2011-2,2011-2012

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  • C++ undefined reference

    - by klaus-johan
    Hi , My problem is the following : I have a class A that inherits from an abstract base class. I override all the virtual functions from the base class, and I have a constructor like this : A::A(B* b) { this->b=b; } In the constructor of class B , I have the following piece of code: A* a=new A(this) However this line of code gives the error : undefined reference to 'A::A(B*)' I have absolutly no idea why could this be happening , so any suggestion would be greatly appreciated !

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  • win32:libs undefined reference

    - by hector
    I want to link a .lib in my Qt project and I get an error about an undefined reference to vhtIOConn::getDefault(vhtIOConn::DeviceType). I have already added the following specifications to the .pro file: ###################################################################### # Automatically generated by qmake (2.01a) vie 28. ago 12:48:10 2009 ###################################################################### TARGET = DEPENDPATH += . INCLUDEPATH += . LIBS += "C:\agregar\VirtualHandCore.lib" LIBS += "C:\agregar\VirtualHandDevice.lib" LIBS += "C:\agregar\VirtualHandRegistry.lib" # Input HEADERS += "C:/Documents and Settings/halvarado/Mis documentos/respaldos de Qt/Development/include/vhandtk/vhtBase.h" SOURCES += main.cpp What should I do?

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  • External project reference in android

    - by bryan costanich
    Hi all, I have an android application that utilizes another project as a project reference. i've gone into the application options, build path, and then selected the project in project references. everything builds and deploys fine, but when i try to run the application and instantiate a class in that project, i'm getting a java.lang.NoClassDefFoundError errrrrr. i'm no java project expert, so i assume i've cocked something simple up. any ideas?

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  • pass array by reference in c

    - by Yassir
    How can I pass an array of struct by reference ? example : struct Coordinate { int X; int Y; }; SomeMethod(Coordinate *Coordinates[]){ //Do Something with the array } int main(){ Coordinate Coordinates[10]; SomeMethod(&Coordinates); }

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  • Python hash() can't handle long integer?

    - by Xie
    I defined a class: class A: ''' hash test class a = A(9, 1196833379, 1, 1773396906) hash(a) -340004569 This is weird, 12544897317L expected. ''' def __init__(self, a, b, c, d): self.a = a self.b = b self.c = c self.d = d def __hash__(self): return self.a * self.b + self.c * self.d Why, in the doctest, hash() function gives a negative integer?

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  • cakePHP get self hasMany array

    - by openprojdevel
    I have an table with fields like: empid,empname,empcode,department_id ... I need an array like [Model] -------[department_id 1] --------------[0] --------------------[empid] --------------------[empname] --------------------[empcode] --------------[1] --------------------[empid] --------------------[empname] --------------------[empcode] --------------[2] --------------------[empid] --------------------[empname] --------------------[empcode] -------[department_id 2] --------------[0] --------------------[empid] --------------------[empname] --------------------[empcode] --------------[1] --------------------[empid] --------------------[empname] --------------------[empcode] --------------[2] --------------------[empid] --------------------[empname] --------------------[empcode] -------[department_id 3] --------------[0] --------------------[empid] --------------------[empname] --------------------[empcode] --------------[1] --------------------[empid] --------------------[empname] --------------------[empcode] Regards,

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  • Self referencing update SQL statement for Informix

    - by CheeseConQueso
    Need some Informix SQL... Courses get a regular grade, but their associated labs get a grade of 'LAB'. I need to update the table so that the lab grade matches the course grade. Also, if there is no corresponding course for a lab, it means the course was canceled. In that case, I want to place a flag value of 'X' for its grade. Example data before update: id yr sess crs_no hrs grd 725 2009 FA COLL101 3.000000000000 C 725 2009 FA ENGL021 3.000000000000 FI 725 2009 FA ENGL021L 1.000000000000 LAB 725 2009 FA ENGL031 3.000000000000 FNI 725 2009 FA ENGL031L 1.000000000000 LAB 725 2009 FA MATH010 3.000000000000 FNI 725 2010 SP AOTE101 3.000000000000 C 725 2010 SP ENGL021L 1.000000000000 LAB 725 2010 SP ENGL031 3.000000000000 FI 725 2010 SP ENGL031L 1.000000000000 LAB 725 2010 SP MATH010 3.000000000000 FNI 726 2010 SP SPAN101 3.000000000000 FN Example data after update: id yr sess crs_no hrs grd 725 2009 FA COLL101 3.000000000000 C 725 2009 FA ENGL021 3.000000000000 FI 725 2009 FA ENGL021L 1.000000000000 FI 725 2009 FA ENGL031 3.000000000000 FNI 725 2009 FA ENGL031L 1.000000000000 FNI 725 2009 FA MATH010 3.000000000000 FNI 725 2010 SP AOTE101 3.000000000000 C 725 2010 SP ENGL021L 1.000000000000 X 725 2010 SP ENGL031 3.000000000000 FI 725 2010 SP ENGL031L 1.000000000000 FI 725 2010 SP MATH010 3.000000000000 FNI 726 2010 SP SPAN101 3.000000000000 FN I worked out a solution for this, but it required a lot of on-the-fly composite foreign keys built from concatenating the id, yr, sess, and substring'd crs_no. My solution is not only overkill, but it has gaps in it and it takes too long to process. I know there is an easier way to do this, but I've gone so far down one road that I am having trouble thinking of a different approach.

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  • Javascript self contained sandbox events and client side stack

    - by amnon
    I'm in the process of moving a JSF heavy web application to a REST and mainly JS module application . I've watched "scalable javascript application architecture" by Nicholas Zakas on yui theater (excellent video) and implemented much of the talk with good success but i have some questions : I found the lecture a little confusing in regards to the relationship between modules and sandboxes , on one had to my understanding modules should not be effected by something happening outside of their sandbox and this is why they publish events via the sandbox (and not via the core as they do access the core for hiding base libary) but each module in the application gets a new sandbox ? , shouldn't the sandbox limit events to the modoules using it ? or should events be published cross page ? e.g. : if i have two editable tables but i want to contain each one in a different sandbox and it's events effect only the modules inside that sandbox something like messabe box per table which is a different module/widget how can i do that with sandbox per module , ofcourse i can prefix the events with the moduleid but that creates coupling that i want to avoid ... and i don't want to package modules toghter as one module per combination as i already have 6-7 modules ? while i can hide the base library for small things like id selector etc.. i would still like to use the base library for module dependencies and resource loading and use something like yui loader or dojo.require so in fact i'm hiding the base library but the modules themself are defined and loaded by the base library ... seems a little strange to me libraries don't return simple js objects but usualy wrap them e.g. : u can do something like $$('.classname').each(.. which cleans the code alot , it makes no sense to wrap the base and then in the module create a dependency for the base library by executing .each but not using those features makes a lot of code written which can be left out ... and implemnting that functionality is very bug prone does anyonen have any experience with building a front side stack of this order ? how easy is it to change a base library and/or have modules from different libraries , using yui datatable but doing form validation with dojo ... ? some what of a combination of 2+4 if u choose to do something like i said and load dojo form validation widgets for inputs via yui loader would that mean dojocore is a module and the form module is dependant on it ? Thanks .

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  • nHibernate storage of an object with self referencing many children and many parents

    - by AdamC
    I have an object called MyItem that references children in the same item. How do I set up an nhibernate mapping file to store this item. public class MyItem { public virtual string Id {get;set;} public virtual string Name {get;set;} public virtual string Version {get;set;} public virtual IList<MyItem> Children {get;set;} } So roughly the hbm.xml would be: <class name="MyItem" table="tb_myitem"> <id name="Id" column="id" type="String" length="32"> <generator class="uuid.hex" /> </id> <property name="Name" column="name" /> <property name="Version" column="version" /> <bag name="Children" cascade="all-delete-orphan" lazy="false"> <key column="children_id" /> <one-to-many class="MyItem" not-found="ignore"/> </bag> </class> This wouldn't work I don't think. Perhaps I need to create another class, say MyItemChildren and use that as the Children member and then do the mapping in that class? This would mean having two tables. One table holds the MyItem and the other table holds references from my item. NOTE: A child item could have many parents.

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  • What are differences between sell side platforms (Admeld) and self-serve platform (AdReady)?

    - by Rick Chin
    I was confused with sell side platforms (e.g. Admeld) and self-serve platforms (e.g. AdReady) as both are serving services to publishers. I would like to know the differences in order to get the answer of "which platform is suitable for a medium size website publisher, and why?" references: http://en.wikipedia.org/wiki/Sell_Side_Platform. http://www.masternewmedia.org/self-serve-advertising-services-guide-to-the-best-do-it-yourself-ad-management-platforms/.

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  • Pushing reference of an object to array

    - by intacto
    As far as i can see in a situation like this: var x = []; var y = {}; y.someProp='asd'; This doesnt work: x.push(y); What I want to do is add a reference of y to x so that later if I will "delete y;" I want it also to be removed from the array x.

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  • heirarchial data from self referencing table in tree form

    - by Beta033
    Ii looks like this has been asked and answered in all the simple cases, excluding the one that i'm having trouble with. I've tried using a recursive CTE to generate this, however maybe a cursor would be better? or maybe a set of recursive functions will do the trick? Can this be done in a cte? consider the following table PrimaryKey ParentKey 1 NULL 2 1 3 6 4 7 5 2 6 1 7 NULL should yield PK 1 -2 --5 -6 --3 7 -4 where the number of - marks equal the depth, my primary difficulty is the ordering.

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  • Question regarding to value/reference type of events

    - by Petr
    Hi, On the MSDN, I have found following: public event EventHandler<MyEventArgs> SampleEvent; public void DemoEvent(string val) { // Copy to a temporary variable to be thread-safe. EventHandler<MyEventArgs> temp = SampleEvent; if (temp != null) temp(this, new MyEventArgs(val)); } I do not understand, "copy to temporary variable", isnt it reference type?

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  • Variable reference in a Groovy GString

    - by Maurits Rijk
    From the book "Groovy and Grails recipes" I'm using the following code snippet: String HelloLanguage = "def hello(language) {return \"Hello $language\"}" However, I get a compiler error "You attempted to reference a variable in the binding or an instance variable from a static context." because language can't be bound. What is wrong?

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