Using a native C++ dll in a C# ASP.NET Website -


in order use native c++ dll in c# asp.net website have done following based upon numerous researches:

(1) created c++ native dll: cmatrix.dll containing constructors

cmatrix(); cmatrix(unsigned int m, unsigned int n);
  • it has been tested.

(2) created c++/cli wrapper dll: managedcmatrix.dll. example contains following class:

public ref class managedcmatrix {    public:       managedcmatrix();       managedcmatrix(const unsigned int m, const unsigned int n);       ~managedcmatrix();        ...     private:       cmatrix *  m_mat; };  first constructor example:  managedcmatrix:managedcmatrix() {     m_mat = new cmatrix(); }  again have tested dll referencing c# project  - seems work

(3) have added managedcmatrix reference c# asp.net website making sure , cmatrix.dll in bin directory of website. make sure path environment variable includes bin directory. when use managed wrapper class in:

managedcmatrix = new managedcmatrix(m,n)

an exception thrown.

this exception thrown on sites' webserver. not thrown on visual studio 2010 development webserver - works expected.

what going on?


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