在當前的情況下，名稱'fe'不存在

Question

請幫助我有兩種形式，其中我必須從第一種形式調用第二種形式的方法...但由於上述錯誤，我卡住了。當我的第二張表格關閉時，我需要關閉表格。

namespace WindowsFormsApplication1 
{ 
public partial class Passengerdetail : Form 
{ 
    passengerDetailClass pd = new passengerDetailClass(); 

    Flightentry fe = new Flightentry();  //if i remove this code 

    public Passengerdetail() 
    { 
     InitializeComponent(); 
     fe.FormClosed += new FormClosedEventHandler(fe_FormClosed); //this line gives error mentioned above. 
    } 

    void fe_FormClosed(object sender, FormClosedEventArgs e) 
    { 
     this.Close(); 
    } 

    private void label1_Click(object sender, EventArgs e) 
    { 

    } 

    private void Passengerdetail_Load(object sender, EventArgs e) 
    { 

    } 

    private void button2_Click(object sender, EventArgs e) 
    { 

     Flightentry fe = new Flightentry(this);  //this code lets me access the method from the other form removing it will mean no method =(

     this.Hide(); 
     fe.Owner = this; 
     fe.ShowDialog(); 
     this.Show(); 
    } 

    public void insertData() 
    { 
     pd.Insert();  //i want to access this method 
    } 

} 

}

第二形式如下代碼...

namespace WindowsFormsApplication1 
{ 
public partial class Flightentry : Form 
{ 

    flightDetail fd = new flightDetail(); 

    private Passengerdetail pd; 


    public Flightentry(Passengerdetail paDet) 
    { 
     InitializeComponent(); 

     pd = paDet; 
    } 

    private void label5_Click(object sender, EventArgs e) 
    { 

    } 


    private void button2_Click(object sender, EventArgs e) 
    { 
     pd.insertData();\\i call the insert method from the previous form here. 

     fd.Insert(comboBox1.Text,comboBox2.Text,comboBox3.Text,textBox3.Text,textBox8.Text,dateTimePicker1.Text,textBox6.Text,textBox5.Text); 
    } 

    private void Flightentry_Load(object sender, EventArgs e) 
    { 

    } 

    private void Flightentry_FormClosing(object sender, FormClosingEventArgs e) 
    { 
    } 

    private void button1_Click(object sender, EventArgs e) 
    { 
     this.Owner.Show(); 
     this.Hide(); 
    } 
} 

}

Answer 1

是它發生在這裏？

//Flightentry fe = new Flightentry();  //if i remove this code 

public Passengerdetail() 
{ 
    InitializeComponent(); 
    fe.FormClosed += new FormClosedEventHandler(fe_FormClosed); //this line gives error mentioned above. 
} 

，因爲你已經註釋掉聲明fe

---

在您的意見光，我想你想的東西像下面

Flightentry fe; 

public Passengerdetail() 
{ 
    InitializeComponent(); 
    fe = new Flightentry(this) 
    fe.FormClosed += new FormClosedEventHandler(fe_FormClosed); //this line gives error mentioned above. 
} 

... 

private void button2_Click(object sender, EventArgs e) 
{ 
    this.Hide(); 
    fe.Owner = this; 
    fe.ShowDialog(); 
    this.Show(); 
}