I'm just starting to learn this and already having problem creating one of the easiest program. It's the hello world program, Here's what's on without anything edited and the program runs fine.
#pragma once</P> <P>
namespace NeosHelloWorld {</P> <P> using namespace System;
using namespace System::ComponentModel;
using namespace System::Collections;
using namespace System::Windows::Forms;
using namespace System::Data;
using namespace System::Drawing;</P> <P> /// <summary>
/// Summary for Form1
///
/// WARNING: If you change the name of this class, you will need to change the
/// 'Resource File Name' property for the managed resource compiler tool
/// associated with all .resx files this class depends on. Otherwise,
/// the designers will not be able to interact properly with localized
/// resources associated with this form.
/// </summary>
public ref class Form1 : public System::Windows::Forms::Form
{
public:
Form1(void)
{
InitializeComponent();
//
//TODO: Add the constructor code here
//
}</P> <P> protected:
/// <summary>
/// Clean up any resources being used.
/// </summary>
~Form1()
{
if (components)
{
delete components;
}
}
private: System::Windows::Forms::Button^ button1;
protected:
private: System::Windows::Forms::Label^ label1;</P> <P> private:
/// <summary>
/// Required designer variable.
/// </summary>
System::ComponentModel::Container ^components;</P> <P>#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->button1 = (gcnew System::Windows::Forms::Button());
this->label1 = (gcnew System::Windows::Forms::Label());
this->SuspendLayout();
//
// button1
//
this->button1->Location = System::Drawing::Point(197, 229);
this->button1->Name = L"button1";
this->button1->Size = System::Drawing::Size(75, 23);
this->button1->TabIndex = 0;
this->button1->Text = L"button1";
this->button1->UseVisualStyleBackColor = true;
this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
//
// label1
//
this->label1->AutoSize = true;
this->label1->Location = System::Drawing::Point(13, 13);
this->label1->Name = L"label1";
this->label1->Size = System::Drawing::Size(35, 13);
this->label1->TabIndex = 1;
this->label1->Text = L"label1";
//
// Form1
//
this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
this->ClientSize = System::Drawing::Size(284, 264);
this->Controls->Add(this->label1);
this->Controls->Add(this->button1);
this->Name = L"Form1";
this->Text = L"Form1";
this->ResumeLayout(false);
this->PerformLayout();</P> <P> }
#pragma endregion
private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) {
}
};
}</P> <P>
But if I change the last part to open a box saying hello world it runs an error.
1>c:\users\neo003\documents\visual studio 2008\projects\neo's helloworld\neo's helloworld\Form1.h(99) : error C2228: left of '.Show' must have class/struct/union
Question
Neo003
I'm just starting to learn this and already having problem creating one of the easiest program. It's the hello world program, Here's what's on without anything edited and the program runs fine.
#pragma once</P> <P> namespace NeosHelloWorld {</P> <P> using namespace System; using namespace System::ComponentModel; using namespace System::Collections; using namespace System::Windows::Forms; using namespace System::Data; using namespace System::Drawing;</P> <P> /// <summary> /// Summary for Form1 /// /// WARNING: If you change the name of this class, you will need to change the /// 'Resource File Name' property for the managed resource compiler tool /// associated with all .resx files this class depends on. Otherwise, /// the designers will not be able to interact properly with localized /// resources associated with this form. /// </summary> public ref class Form1 : public System::Windows::Forms::Form { public: Form1(void) { InitializeComponent(); // //TODO: Add the constructor code here // }</P> <P> protected: /// <summary> /// Clean up any resources being used. /// </summary> ~Form1() { if (components) { delete components; } } private: System::Windows::Forms::Button^ button1; protected: private: System::Windows::Forms::Label^ label1;</P> <P> private: /// <summary> /// Required designer variable. /// </summary> System::ComponentModel::Container ^components;</P> <P>#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->button1 = (gcnew System::Windows::Forms::Button()); this->label1 = (gcnew System::Windows::Forms::Label()); this->SuspendLayout(); // // button1 // this->button1->Location = System::Drawing::Point(197, 229); this->button1->Name = L"button1"; this->button1->Size = System::Drawing::Size(75, 23); this->button1->TabIndex = 0; this->button1->Text = L"button1"; this->button1->UseVisualStyleBackColor = true; this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click); // // label1 // this->label1->AutoSize = true; this->label1->Location = System::Drawing::Point(13, 13); this->label1->Name = L"label1"; this->label1->Size = System::Drawing::Size(35, 13); this->label1->TabIndex = 1; this->label1->Text = L"label1"; // // Form1 // this->AutoScaleDimensions = System::Drawing::SizeF(6, 13); this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font; this->ClientSize = System::Drawing::Size(284, 264); this->Controls->Add(this->label1); this->Controls->Add(this->button1); this->Name = L"Form1"; this->Text = L"Form1"; this->ResumeLayout(false); this->PerformLayout();</P> <P> } #pragma endregion private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) { } }; }</P> <P>But if I change the last part to open a box saying hello world it runs an error.
#pragma endregion private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) { Messagebox.Show("Hello World!"); } };Link to comment
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