Hi,

"Toolbox" is a confusing word so please show a screen image of the problem

Thanks

Maybe some confusion. A sketch can not have buttons so you should close the toolbox.

Arduino projects are C++ and the toolbox is for windows programs.

To program your arduino please connect the usb cable or programmer and then follow the First Steps in the documentation

Normally we also recommend that users who are new to Arduino should first spend a few hours using the Arduino IDE so that Arduino is understood before using Visual Studio.

Thanks

For the windows app you should create a new c# windows forms project and then the tool box will be available.

You then follow the visual micro guide to create and upload an Arduino program that responds to the requests made by the windows forms program.

So you will have two programs/projects 1) one for windows and 2) for arduino

The example shows the arduino code as follows and does not and can not use any visual studio toolbox controls

#define BaudRate 9600
#define LEDPin    10
char incomingOption;

void setup()
{
  pinMode(LEDPin, OUTPUT);
  // serial communication
  Serial.begin(BaudRate);
}
void loop()
{
     //read from serial port getting information from VS 2013
     incomingOption = Serial.read();
     //verify incomingOption
     switch(incomingOption){
        case '1':
          // Turn ON LED
          digitalWrite(LEDPin, HIGH);
          break;
        case '0':
          // Turn OFF LED
          digitalWrite(LEDPin, LOW);
          break;
     }
} 

As I said you need two projects. So far you have only created an arduino project so you won't have any toolbox items.

Use File>new>project to create a standard visual studio c# windows forms project. Then you will have a project that contains a "Form" and you will be able to drag drop the toolbox items onto it.

When you have a windows form project you can click build and it will create a normal windows .exe program that can be run on windows with the form hat you have created.

The arduino program can be built seperately and then uploaded to the arduino using the usb cable.

The example you posted uses the two programs. The program on the arduino and the program on windows communicate via usb. 

So to be clear. You can't create a windows form or use toolbox items for code that runs on an arduino. Instead you have to create two programs that speak to each other using Serial communications.

Whilst this is new to you you should have two instances of Visual Studio open. One that contains the windows project and one that contains the arduino project. 

It is possible to have both projects open in a single visual studio ide but it will be more confusing for you to work that way.