windows runtime - How to initialize c++/cx class with aggregate initialization? -

i have ref class:

namespace n  {          public ref class s sealed   {     public:       property platform::string^ x;   }; } 

how initialize in place aggregate initializer? have tried:

n::s s1 = { %platform::string(l"text") }; 

but compiler says

error c2440: 'initializing': cannot convert 'initializer list' 'n::s'

also:

n::s s1 { %platform::string(l"text") }; 

and error is:

error c2664: 'n::s::s(const n::s %)': cannot convert argument 1 'platform::string ^' 'const n::s %'

this works standard c++ this:

struct t     {         wstring x;     }; t x { l"test" }; 

i not want use constructor here.

i assume mean don't want public constructor on projected winrt type -- no problem, can use internal keyword mean "public inside c++ not exposed through interop". means can use native c++ types parameters if like:

namespace testing {   public ref class mytest sealed   {   public:     property string^ foo {        string^ get() { return m_foo; }       void set(string^ value) { m_foo = value; }     }    internal:     // not compile if public, since wchar_t* isn't valid     mytest(const wchar_t* value) { m_foo = ref new string(value); }    private:     string^ m_foo;   }; }  mainpage::mainpage() {   // projected type not have constructor   testing::mytest t{ l"hello" };   outputdebugstring(t.foo->data());   t.foo = "\nchanged";   outputdebugstring(t.foo->data()); } 

also don't need have private variable hold string -- use auto-property in original code -- prefer explicit. means if needed access string lot within c++ code provide internal accessor function , not have go through vtable call @ it.