Converting textbox->text to string

Question

Hey I'm trying to save text entered in textbox as string

#pragma once
#include <iostream>
#include <string>

namespace Project1 {

    using namespace System;
    using namespace System::ComponentModel;
    using namespace System::Collections;
    using namespace System::Windows::Forms;
    using namespace System::Data;
    using namespace System::Drawing;


    int IloscBD1=0, IloscBD2=0, IloscPD1, IloscPD2, Suma, I, J, Punkty, P1, P2, P3, P4, P5, P6, Druzyna;
    int TabPunkt[10][6];

    std::string TabOdpowiedzi[10][6];

...


...
private: System::Void buttonZ_Click(System::Object^  sender, System::EventArgs^  e) {
    TabOdpowiedzi[1][1] = (Convert::ToString(textPO->Text));
    this->textPN->Text = (Convert::ToString(TabOdpowiedzi[1][1]));
}

But I am getting those errors, what's wrong? How can I keep input from text box as a string for future or is there a better way to keeping text input for future usage ?

Error 1 error C2679: binary '=' : no operator found which takes a right-hand operand of type 'System::String ^' (or there is no acceptable conversion)

Error 2 error C2665: 'System::Convert::ToString' : none of the 37 overloads could convert all the argument types

3 IntelliSense: no operator "=" matches these operands operand types are: std::string = System::String ^

4 IntelliSense: no instance of overloaded function "System::Convert::ToString" matches the argument list argument types are: (std::string)

1. This is C++/CLI, not C++. Why are you mixing managed and unmanaged code? std::string and System.String are different types, it's propably easier to pick one and use it. — nvoigt
– nvoigt, Commented Nov 21, 2017 at 12:31

nvoigt · Accepted Answer · 2017-11-21 13:20:01Z

1

You are mixing up your types. Declare

std::string TabOdpowiedzi[10][6];

As

array<System::String^,2>^ TabOdpowiedzi = gcnew array<System::String^,2>(10, 6);

And your problems here vanish. Maybe you will have problems in other parts of your code then, but you have not posted those...

edited Nov 21, 2017 at 13:20

answered Nov 21, 2017 at 12:32

nvoigt

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2 Comments

Daniel Zietek Over a year ago

Well definition of System::String^ TabOdpowiedzi[10][6]; generates those errors: Error 1 error C2728: 'System::String ^' : a native array cannot contain this type 2 IntelliSense: array of handles is not allowed

nvoigt Over a year ago

Ah sorry, you are right, you can find the correct syntax for C++/CLI here.

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