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  • Python: Dynamic attribute name generation without exec() or eval()

    - by PyNewbie27
    Hi, I'm trying to dynamically create buttons at runtime with PyQT4.7 However, this being my first python program I'm not sure how to get the functionality I want. I would like to be able to substitute a text string for an attribute name: i.e. for each in xrange(4): myname = "tab1_button%s" % each #tab1_button0, tab1_button1, tab1_button2 #self.ui.tab1_button0 = QtGui.QPushButton(self.ui.tab) <--normal code to create a named button setattr(self.ui,myname,QtGui.QPushButton(self.ui.tab)) #rewrite of line above to dynamicly generate a button #here's where I get stuck. this code isn't valid, but it shows what i want to do self.ui.gridLayout.addWidget(self.ui.%s) % myname #I need to have %s be tab1_button1, tab1_button2, etc. I know the % is for string substituion but how can I substitute the dynamically generated attribute name into that statement? I assume there's a basica language construct I'm missing that allows this. Since it's my first program, please take it easy on me ;)

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  • Log the method name in objective-C?

    - by vodkhang
    Currently, we are defining ourselves an extended log mechanism to print out the class name and the source line number of the log. #define NCLog(s, ...) NSLog(@"<%@:%d> %@", [[NSString stringWithUTF8String:__FILE__] lastPathComponent], \ __LINE__, [NSString stringWithFormat:(s), ##__VA_ARGS__]) For example, when I call NCLog(@"Hello world"); The output will be: Hello world Now I also want to log out the method name like: Hello world So, this would make our debugging become easier when we can know which method is getting called. I know that we also have XCode debugger but sometimes, I also want to do debugging by logging out.

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  • Python: Getting the attribute name that the created object will be given

    - by cool-RR
    Before I ask this, do note: I want this for debugging purposes. I know that this is going to be some bad black magic, but I want to use it just during debugging so I could identify my objects more easily. It's like this. I have some object from class A that creates a few B instances as attributes: class A(object): def __init__(self) self.vanilla_b = B() self.chocolate_b = B() class B(object): def __init__(self): # ... What I want is that in B.__init__, it will figure out the "vanilla_b" or whatever attribute name it was given, and then put that as the .name attribute to this specific B. Then in debugging when I see some B object floating around, I could know which one it is. Is there any way to do this?

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  • Sort files by name in Java differs from Windows Explorer

    - by Martyn Hopkins
    I have a simple Java program which reads a file directory and outputs a file list. I sort the files by name: String [] files = dirlist.list(); files = sort(files); My problem is that it sorts by name in a different way than Windows Explorer does. For instance if I have these files: abc1.doc, abc12.doc, abc2.doc. Java will sort like this: abc1.doc abc12.doc abc2.doc When I open the folder in Explorer, my files are sorted like this: abc1.doc abc2.doc abc12.doc How can I make Java sorts my files like in Windows Explorer? Is this a Windows trick?

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  • Typecast to a type from just the string representation of the type name

    - by Water Cooler v2
    sTypeName = ... //do some string stuff here to get the name of the type /* The Assembly.CreateInstance function returns a type of System.object. I want to type cast it to the type whose name is sTypeName. assembly.CreateInstance(sTypeName) So, in effect I want to do something like: */ assembly.CreateInstance(sTypeName) as Type.GetType(sTypeName); How do I do that? And, what do I take on the left side of the assignment expression, assuming this is C# 2.0. I don't have the var keyword.

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  • Detect LaTeX class name

    - by Matthew Leingang
    I'm working on a LaTeX package which might need to do some things differently depending on the class that's being used. I'm wondering if there's a way to auto-detect or test the document class. One could certainly look up the class files and test for the existence of a specific macro defined by that class, but is there a smarter way? I looked at the definition of the \ProvidesClass macro and can't see if it saves the class name anywhere except \@currname. I believe \@currname is just the name of the current package or class being read. Basically I want to execute \author{\longauthorname} in the article class but \author[\shortauthorname]{\longauthorname} in the beamer class.

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  • ASP.Net MVC null reference exception with TextArea name

    - by kingrichard2005
    Hello, I have a TextArea html helper method I'm calling in a foreach loop. Basically, when I initially load the View it works fine, but when i reload the View and load postback data, the same TextArea throws a NullReferencException and yet the variable I'm using in the TextArea as the name of the TextArea is not null. I've attached a picture below for demonstration: Sorry if it's difficult to see, the blue arrow below is pointing to the variable used to name the TextArea. Again, it works on initial load, but it errors out on postback when the page is reloaded. I'm not sure what's going on.

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  • MVC4 link automatically redirected to default INDEX page/action even if defined action name with controller

    - by Raj Tamakuwala
    i am creating web mobile application in mvc4. My problem is when I click on particular link in my application,it works well, but sometimes it automatically redirected to INDEX page that is set as default page in global.asax as routes.MapRoute( "Default", // Route name "{controller}/{action}/{id}", // URL with parameters new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults ); Now I don't know why its automatically redirected to INDEX page,even if I have already defined controller and action name where it show redirected as, <a href='@(Url.Action( "ActivityWall", "Home"))' > </a> logically it should redirect to "ActivityWall" page,which it does.but sometime only it goes to INDEX page.then when I clear my cookie problem will again solved but after some time it again start redirecting to INDEX page. I also posted question related to cookies issue yesterday,but I think that is nit main issue. can someone help please ?

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  • Next and Previous MySQL row based on name

    - by NightMICU
    Hi everyone, I have a table with details on personnel. I would like to create a Next/Previous link based on the individual's last name. Since personnel were not added in alphabetical order, selecting the next or previous row based on its ID does not work. It is a hefty table - the pertinent fields are id, name_l, and name_f. I would like to order by name_l, the individuals' last name. How would I go about accomplishing this task? Thanks!

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  • LINQ2SQL: orderby note.hasChildren(), name ascending

    - by Peter Bridger
    I have a hierarchical data structure which I'm displaying in a webpage as a treeview. I want to data to be ordered to first show nodes ordered alphabetically which have no children, then under these nodes ordered alphabetically which have children. Currently I'm ordering all nodes in one group, which means nodes with children appear next to nodes with no children. I'm using a recursive method to build up the treeview, which has this LINQ code at it's heart: var filteredCategory = from c in category orderby c.Name ascending where c.ParentCategoryId == parentCategoryId && c.Active == true select c; So this is the orderby statement I want to enhance. Shown below is the database table structure: [dbo].[Category]( [CategoryId] [int] IDENTITY(1,1) NOT NULL, [Name] [varchar](100) NOT NULL, [Level] [tinyint] NOT NULL, [ParentCategoryId] [int] NOT NULL, [Selectable] [bit] NOT NULL CONSTRAINT [DF_Category_Selectable] DEFAULT ((1)), [Active] [bit] NOT NULL CONSTRAINT [DF_Category_Active] DEFAULT ((1))

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  • how to get the region name?

    - by shemesh
    using Silverlight & Prism. i create a new scoped region inside a TabControl like so: IRegionManager regionManager = tabControl.Add(viewRegions, UNIQUEID, true); then from the TabControl SelectionChanged event i want to get the name of that region. so i go: TabItem item = e.AddedItems[0] as TabItem; FrameworkElement view = item.Content as FrameworkElement; IRegionManager xxx = RegionManager.GetRegionManager(view); so now i have the scoped region manager at hand = xxx! but how do i get its name? (the "UNIQUEID" param i have assigned to it ). HOW?

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  • Type or namespace name could not be found

    - by Pandiya Chendur
    I use this: public IQueryable<MaterialsView> FindAllMaterials() { var materials = from m in db.Materials join Mt in db.MeasurementTypes on m.MeasurementTypeId equals Mt.Id select new MaterialsView { MatId = m.Mat_Name, MesName = Mt.Name, MesType = m.Mat_Type }; return materials; } It gives me the following errors: The type or namespace name MaterialsView could not be found (are you missing a using directive or an assembly reference?) Cannot implicitly convert type System.Collections.Generic.IEnumerable<MaterialsView> to System.Linq.IQueryable<MaterialsView>. An explicit conversion exists (are you missing a cast?) The type arguments for method System.Linq.Enumerable.ToList<TSource>(System.Collections.Generic.IEnumerable<TSource>) cannot be inferred from the usage. Try specifying the type arguments explicitly. I have googled it and found this SO question but it doesn't help. What's wrong?

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  • Get a font filename based on Font Name and Style (Bold/Italic)

    - by Brad
    This has been driving me crazy all day. I need to get a font filename (eg. Arial.ttf) based off of it's name (Arial in this case). The problem is, I am only supplied with the font name (Arial) and weather it's bold, italic or both. Using those pieces of information, I need to find the font file so I can use it for rendering. Some more examples: Calibri, Bold would resolve to calibrib.ttf Calibri, Italic would resolve to calibrii.ttf Any ideas on how I could achieve this in C++ (Win32)

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  • php mail function cannot send to name[email protected] ??i

    - by user333216
    I'm having trouble when sending emails thorough the mail() function. I have a script that works perfectly fine for an email address like [email protected] but when the first part of the email is something with a dot like name[email protected] it doesn't work and returns this error : Warning: mail() [function.mail ]: SMTP server response: 554 : Recipient address rejected: Relay access denied in confirmed.php on line 119 I am using real email address but have changed it in the above example. Any thoughts - I'm not a php master but surely there is an easy way to send emails to address with a 2 part first section?? Thanks in advance Ali

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  • Script SQL Server login with Windows authentication without machine name

    - by Evgeny
    I want to write a SQL 2005 script to create a new login that uses Windows authentication. The Windows user is a local account (not a domain one). A local account with the same name exists on many SQL Server machines and I want to run the same script on all of them. It seemed simple enough: CREATE LOGIN [MyUser] FROM WINDOWS However, that doesn't work! SQL returns an error, saying Give the complete name: <domain\username>. Of course, I can do that for one machine and it works, but the same script will not work on other machines.

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  • dose not name a type error in c++

    - by user985316
    #include <math.h> #include <stdlib.h> #include <stdio.h> #include <vector> #define IE 40 #define JE 40 #define KE 40 #define ia 7 #define ja 7 #define ka 7 #define NFREQS 3 using namespace std; main() float l,m,n,i,j,k,ic,jc,kc,nsteps,n_pml; float ddx,dt,T,epsz,muz,pi,eaf,npml; int ib,jb,kb; . . . . ic=IE*0.5 ; jc=JE*0.5 ; ....'ic'dose not name a type. ....'jc'dose not name a type.

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  • Activator.CreateInstance with type name as string and including parameters

    - by Kelly
    I am working in .Net 3.5, looking at all the various constructors for Activator.CreateInstance. I want to create an instance of a class, calling a particular constructor. I do not have the class type, only its name. I have the following, which works, but actually winds up calling the parameterless constructor first, then the one I want. This is not a terribly big deal, but the parameterless constructor calls a rather busy base constructor, and the constructor I want to call does, too. In other words, given a type, calling CreateInstance with parameters is easy (only the last two lines below), but given only a type name, is there a better way than this? ObjectHandle oh = Activator.CreateInstance( "MyDllName", "MyNS." + "MyClassName" ); object o = oh.Unwrap( ); object newObj = Activator.CreateInstance( o.GetType( ), new object[] { param1 } ); return ( IMyDesiredObject )newObject; Thanks!

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  • Find the "name" of a library (-L -l switches)

    - by sebastiangeiger
    Being fairly new to C++ I have a question bascially concerning the g++ compiler and especially the inclusion of libraries. Consider the following makefile: CPPFLAGS= -I libraries/boost_1_43_0-bin/include/ -I libraries/jpeg-8b-bin/include/ LDLIBS= libraries/jpeg-8b-bin/lib/libjpeg.a # LDLIBS= -L libraries/jpeg-8b-bin/lib -llibjpeg all: main main: main.o c++ -o main main.o $(LDLIBS) main.o: main.cpp c++ $(CPPFLAGS) -c main.cpp clean: rm -rf *.o main As you can see I declared the LDLIBS variable twice. My code is compiling and working if I use the makefile above. But if I deactivate the first LDLIBS entry and active the second one I get ld: library not found for -llibjpeg. I assume my libjpeg.a is just not called libjpeg but bears some different name. Is there a way to find out the name of a given "libraryfile" libsomething.a or libsomething.dyn?

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