autogenerated code for windows forms has errors on "using namespace System;"

Question

I'm working on a windows forms projects in microsoft visual studio and when I autogenerated the windows form code there were errors everywhere.

I've put everything with an error in stars (it wouldn't let me do italics etc.)

namespace FormsTest {

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

/// <summary>
/// Summary for MainDisplay
/// </summary>
*public* ref class MainDisplay : public System::Windows::Forms::Form
{
public:
    MainDisplay(void)
    {
        InitializeComponent();
        initialiseDatabase();
    }

protected:
    /// <summary>
    /// Clean up any resources being used.
    /// </summary>
    ~MainDisplay()
    {
        if (components)
        {
            delete components;
        }
    }
private: System::Windows::Forms::PictureBox^  pictureBox1;
protected:


private:
    /// <summary>
    /// Required designer variable.
    /// </summary>
    System::ComponentModel::Container ^components;

#pragma region Windows Form Designer generated code
    /// <summary>
    /// Required method for Designer support - do not modify
    /// the contents of this method with the code editor.
    /// </summary>
    void InitializeComponent(void)
    {
        this->pictureBox1 = (gcnew System::Windows::Forms::PictureBox());
        (cli::safe_cast<System::ComponentModel::ISupportInitialize^>(this->pictureBox1))->BeginInit();
        this->SuspendLayout();
        // 
        // pictureBox1
        // 
        *this*->pictureBox1->Location = System::Drawing::Point(12, 74);
        *this*->pictureBox1->Name = L"pictureBox1";
        *this*->pictureBox1->Size = System::Drawing::Size(960, 355);
        *this*->pictureBox1->TabIndex = 0;
        *this*->pictureBox1->TabStop = false;
        // 
        // MainDisplay
        // 
        *this*->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
        *this*->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
        *this*->ClientSize = System::Drawing::Size(984, 461);
        *this*->Controls->Add(this->pictureBox1);
        *this*->Name = L"MainDisplay";
        *this*->Text = L"MainDisplay";
        *this*->Load += gcnew System::EventHandler(this, &MainDisplay::MainDisplay_Load);
        (cli::safe_cast<System::ComponentModel::ISupportInitialize^>(this->pictureBox1))->EndInit();
        this->ResumeLayout(false);

    }

It is saying that the "System" must be a namespace name

This is the first time that I've used windows forms I've mostly just used the console.

Thanks for any help you can offer.

Remove the public from System::Windows::Forms::Form and I think it is only System::Windows::Forms — DJ Burb
Um that hasn't worked. I made this using the empty project, could that be it if so how can i fix that? — Cjen1
Do you still get the same error when you tried it? Or is the error different? — DJ Burb
I'm getting the same errors. It is where all the stars are in the code that i'm getting the namespace errors — Cjen1
VS2013 no longer has the project template to create a Winforms app. That makes it easy to make small mistakes that produce big problems, like forgetting to compile with /clr in effect. — Hans Passant

Cjen1 Cjen1 · Accepted Answer · 2014-12-08T21:19:20

Ok I have a workaround thanks to Hans Passant. I needed to start the project from a clr empty project, even though VS2013 had said that it had converted it, so that it will compile with clr. I'm no longer getting all the errors.

So thanks again.

autogenerated code for windows forms has errors on "using namespace System;"

1 Answers