我正在做一个c#程序.我有四种不同的形式.退出表单并不会停止这个过程.我做错了什么?

本文关键字：表单退出什么错了过程程序一个四种 | 更新日期: 2023-09-27 18:02:50

这是我打开一个新表单的方法

    private void button1_Click(object sender, EventArgs e)
    {
        Form2 f2 = new Form2();
        //Sets the Add New Button to Color WhiteSmoke
        this.button1.BackColor = Color.WhiteSmoke;
        //Hides current form (Form 1)
        this.Hide();
        //Displays Form 2
        f2.ShowDialog();
    }

这是我关闭窗体的方式。我做错了什么?

 private void Form1_Close(object sender, FormClosingEventArgs e)
    {
        foreach (Form form in Application.OpenForms)
        {
            Environment.Exit(0);
        }
    }

我正在做一个c#程序.我有四种不同的形式.退出表单并不会停止这个过程.我做错了什么?

不调用Environment.Exit(0)，而是调用Close():

foreach (Form form in Application.OpenForms)
{
    form.Close();
}

另一种选择:

Application.Exit();

尝试将您的代码放入Form1_FormClosing()方法:

    private void Form1_FormClosing(object sender, FormClosingEventArgs e)
    {
        foreach (Form form in Application.OpenForms)
        {
            // Make sure form is visible before closing //
            form.Show();
            form.Close();
        }
        Environment.Exit(0);
    }

Form1的关闭事件是不调用，如果窗体是隐藏的。
所以不要隐藏表单。事实上-永远不要隐藏表单:)

private void button1_Click(object sender, EventArgs e)
{
    Form2 f2 = new Form2();
    //Sets the Add New Button to Color WhiteSmoke
    this.button1.BackColor = Color.WhiteSmoke;
    //Hides current form (Form 1)
    this.Hide(); //<-- delete this
    //Displays Form 2
    f2.ShowDialog();
    f2.Dispose(); //<--  necessary when using ShowDialog()
}

并删除所有这些:

private void Form1_Close(object sender, FormClosingEventArgs e)
{
    foreach (Form form in Application.OpenForms)
    {
        Environment.Exit(0);
    }
}

这会使进程关闭然后关闭Form1

这里，简单的解决方案是在Form2构造函数中传递Form1对象引用并调用Form1。Close in Form2_Closing Event.

public partial class Form1 : Window
{
    public Form1()
    {
        InitializeComponent();
    }
    private void Button_Click(object sender, RoutedEventArgs e)
    {
        Form2 f2 = new Form2(this);
        this.Hide();
        f2.Show();
    }
}

当Form2关闭时，调用Form1关闭事件

public partial class Form2 : Window
{
    Form1 frm;
    public Form2()
    {
        InitializeComponent();
    }
    public Form2(Form1 frm)
    {
        InitializeComponent();
        this.frm = frm;
    }
    private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
    {
        frm.Close();
    }
}

相关文章：

最新信息: