I'm trying to call DisplayFor and DisplayForModel to iterate an IEnumerable<> with various element types from within a view. I have Templates defined for each element/Model type. What I would like to do is check the ViewData.ModelMetadata.ContainerType from within the Template so that Template can determine if it was called as part of a...
I've been trying to implement a function that needs partial template specializations and fallen back to the static struct technique, and I'm having a number of problems. template<typename T> struct PushImpl<const T&> { typedef T* result_type; typedef const T& argument_type; tem...
I'm getting the following error: Template error In template /home/mo/python/django/templates/yoga/index.html, error at line 1 Caught TemplateDoesNotExist while rendering: base.html 1 {% extends "base.html" %} 2 3 {% block main %} 4 <p>{{ page.title }}</p> 5 <p>{{ page.info}}</p> 6 <a href="method/">Method</a> 7 {% endblock...
This piece of code is supposed to calculate an approximation to e (i.e. the mathematical constant ~ 2.71828183) at compile-time, using the following approach; e1 = 2 / 1 e2 = (2 * 2 + 1) / (2 * 1) = 5 / 2 = 2.5 e3 = (3 * 5 + 1) / (3 * 2) = 16 / 6 ~ 2.67 e4 = (4 * 16 + 1) / (4 * 6) = 65 / 24 ~ 2.708 ... e(i) = (e(i-1).numer * i + 1) /...
Hello, I have a templated class with a static value, like this: template <class TYPE> class A{ static TYPE value; }; in the code of a dll I assign the static value: code of DLL_1 A<float>::value = 2.0; I wish the value to be shared by all the dlls I'm using, i.e. I want that: code of DLL_2 printf("value on DLL_2 %f",A<flo...
I want to detect existence of a specific member function for a class, using the usual SFINAE trick. template<typename T> struct has_alloc { template<typename U,U x> struct dummy; template<typename U> static char test(dummy<void* (U::*)(std::size_t),&U::allocate>*); template<typename U> static char (&test(...))[...
Hi, Please, see what I am trying to do: #include <iostream> namespace first { template <class T> class myclass { T t; public: void who_are_you() const { std::cout << "first::myclass"; } }; } namespace second { using first::myclass; template <> class myclass <int> { int i, j; public: void who_are_you() const { std...
Hi, I have a class which extends from repeater class. Basically I need a custom repeater which should have this layout: <HeaderTemplate> </HeaderTemplate> <MyTemplate> </MyTemplate> <ItemTemplate> </ItemTemplate> <FooterTemplate> </FooterTemplate> Till now I have written this cod...
Hi, I am kinda stuck, I've been using Django for a while now, but I cant actually seem to find this thing out. And thats weird because it should be a simple thing. I've been googling around and can't seem to find a solution, it maybe because it is a simple thing. The problem is, I have a ModelForm, and it has a FileField, when I rende...
Possible Duplicate: C++ class template of specific baseclass class Base { ... }; class Derived1 : public Base { ... }; class Derived2 : public Base { ... }; class Unrelated { ... }; I want to have a class template ClassTemplate that accepts as parameter only classes Derived1 and Derived2 but not Unrelated, so I can do: C...
Hey S.O. Guys I am currently trying to write a basic wrapper for the cml (http://www.cmldev.net/) math library for a project i am working on. I have a wrapper for the cml vector class which has one private member #ifndef VECTOR3_H_ #define VECTOR3_H_ #include "cml\cml.h" #include <memory> namespace Math { template<typename T> ...
I have an ASP.NET web app that retrieves a JSON collection and outputs the content of the collection, via LINQ to a StringBuilder that has a lot of table and other tags in HTML, with my data pieces interspersed. This is what I mean: sb.AppendFormat(@" <table cellpadding=""0"" class=""TableStyle"" style=""width: 70%; height: 100%;"" ce...
I'm trying to find is there's a way to check if a class is a functional because i want to write a template which uses it? Is there an easy way to do this? Or do I just wrap things in a try/catch? Or perhaps the compiler won't even let me do it? ...
I built a new VS2010 project template (based on MVC2, but it's not important). Most of the files are, of course in the project, but there are a few that are not. For example, T4MVC.setting.t4 and instructions.pdf. Although they are not in the project, I would still want to put them in user directory when new project is created. However,...
My base class: //Element.h class Element { public: Element(); virtual ~Element(){}; // not sure if I need this virtual Element& plus(const Element&); virtual Element& minus(const Element&); }; Derived template class: //Vector.h #include "Element.h" template <class T> class Vector: public Element { T x, y, z; public: //constructors...
If found a solution to a related question here http://stackoverflow.com/questions/3079563/designer-problem-with-compositedataboundcontrol. But I now have the strange behavior that I can edit the template, after setting the datasourcecontrol correctly, and put in label controls and edit the bindings correctly like I would expect. That is ...
I'm having trouble passing a callback function from within a class, when calling a template function. Here's a sample code: sortedlist.h #ifndef _sortedlist_h #define _sortedlist_h #include <vector> template <typename ElemType> class SortedList { public: SortedList(int (*compare)(ElemType a, ElemType b)); ~SortedList(); ...
Are there Android app templates, similar to the iPhone SDK templates? ...
I have this situation: I have a class which keeps track of an array of pointers. I built a custom iterator which loops through this array. My problem is on how to make it threadsafe, especially while incrementing/decrementing? Here is a draft of the relevant parts of what I have: typedef fruit * iterator; class fruits { private: ...
I'd like to create a variable which matches the type of another variable by way of a template such that if the other variable ever changes type to match, the one derived from it via a template also changes its type. How can I do this with templates in C++? The purpose is to ensure that when I read from disk into a temporary variable th...