Showing Form1 from Form2
Showing Form1 from Form2
我一直在尝试使Form1
从Form2
可见。在我的程序中,你按下form1
中的一个按钮来隐藏form1
,然后Form2
就会弹出。。。但当Form2
上的计时器用完时,它应该隐藏起来,Form1
应该重新弹出。但当我试着跑步时,我会得到这个:
1>c:usersdevondocumentsvisual studio 2010projectsretaliationretaliationForm2.h(122): error C2039: 'Form1' : is not a member of 'Retaliation::Form2'
(Ps.报复是程序的名称(。
这是我的代码(顶部有#include "Form1.h"
(
#pragma once
#include "stdAfx.h"
#include "Form1.h"
namespace Retaliation {
using namespace System;
using namespace System::ComponentModel;
using namespace System::Collections;
using namespace System::Windows::Forms;
using namespace System::Data;
using namespace System::Drawing;
using namespace System::IO;
using namespace std;
/// <summary>
/// Summary for Form2
/// </summary>
public ref class Form2 : public System::Windows::Forms::Form
{
public:
int MoviePlay;
public:
int TickL;
Form2(void)
{
InitializeComponent();
//
//TODO: Add the constructor code here
//
}
protected:
/// <summary>
/// Clean up any resources being used.
/// </summary>
~Form2()
{
if (components)
{
delete components;
}
}
private: AxWMPLib::AxWindowsMediaPlayer^ MoviePlayer1;
private: System::Windows::Forms::Timer^ timer1;
private: System::ComponentModel::IContainer^ components;
protected:
protected:
private:
/// <summary>
/// Required designer variable.
/// </summary>
#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->components = (gcnew System::ComponentModel::Container());
System::ComponentModel::ComponentResourceManager^ resources = (gcnew System::ComponentModel::ComponentResourceManager(Form2::typeid));
this->MoviePlayer1 = (gcnew AxWMPLib::AxWindowsMediaPlayer());
this->timer1 = (gcnew System::Windows::Forms::Timer(this- >components));
(cli::safe_cast<System::ComponentModel::ISupportInitialize^ > (this->MoviePlayer1))->BeginInit();
this->SuspendLayout();
//
// MoviePlayer1
//
this->MoviePlayer1->Enabled = true;
this->MoviePlayer1->Location = System::Drawing::Point(0, -1);
this->MoviePlayer1->Name = L"MoviePlayer1";
this->MoviePlayer1->OcxState = (cli::safe_cast<System::Windows::Forms::AxHost::State^ >(resources- >GetObject(L"MoviePlayer1.OcxState")));
this->MoviePlayer1->Size = System::Drawing::Size(860, 547);
this->MoviePlayer1->TabIndex = 0;
this->MoviePlayer1->Enter += gcnew System::EventHandler(this, &Form2::axWindowsMediaPlayer1_Enter);
//
// timer1
//
this->timer1->Interval = 1000;
this->timer1->Tick += gcnew System::EventHandler(this, &Form2::timer1_Tick);
//
// Form2
//
this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
this->ClientSize = System::Drawing::Size(859, 495);
this->Controls->Add(this->MoviePlayer1);
this->Name = L"Form2";
this->Text = L"Form2";
this->Load += gcnew System::EventHandler(this, &Form2::Form2_Load);
(cli::safe_cast<System::ComponentModel::ISupportInitialize^ >(this->MoviePlayer1))->EndInit();
this->ResumeLayout(false);
}
#pragma endregion
private: System::Void axWindowsMediaPlayer1_Enter(System::Object^ sender, System::EventArgs^ e) {
}
private: System::Void Form2_Load(System::Object^ sender, System::EventArgs^ e) {
String^ Movie = File::ReadAllText("Movie.txt");
if (Movie == "1")
{
MoviePlayer1 -> Ctlcontrols -> play();
}
}
private: System::Void timer1_Tick(System::Object^ sender, System::EventArgs^ e) {
TickL += 1;
if (Movie == "1")
{
if (TickL == 47)
{
this -> timer1 -> Stop();
TickL = 0;
this -> Hide();
this -> Form1 -> Show();
}
}
}
};
}
您需要做的是在创建并显示Form2
时传递对Form1
的引用。然后,当Form2
关闭时,它可以使用该引用再次显示Form1
。
因此,将Form2
更改为有一个private
成员变量来引用Form1
,并在构造函数中设置它
public ref class Form2 : public System::Windows::Forms::Form
{
private:
Form1 ^m_pMainForm;
public:
Form2(Form1 ^pMainForm)
{
InitializeComponent();
// save reference to main form
m_pMainForm = pMainForm;
}
// ... etc.
然后更改创建Form2
的Form1
中的代码,将引用传递给自身
public SomeMethodInForm1()
{
// create and show Form2
Form2 ^pFormTwo = gcnew Form2(this); // pass a reference to Form1
pFormTwo->Show();
}
最后,在Form2
中,您可以使用保存的引用来重新显示Form1
public SomeMethodInForm2()
{
// redisplay Form1
m_pMainForm->Show();
// ... close Form2 or whatever you want to do
}
根据类声明的顺序,您可能需要为其中一个表单添加前向声明,或者在头和定义之间适当地拆分代码,但这只是一个小细节。如果你仍然被困,就再发一个问题。
从form1调用form2时,隐藏form1,然后调用form2。调用form2后,取消隐藏form1。
private:System::Void button1_Click(System::Object^sender,System::EventArgs^e({
this->Visible = false;
Form2^ f2 = gcnew Form2;
f2->ShowDialog();
this->Visible=true;
}
};
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