C# 如何在关闭时最小化到系统托盘

Question

C# 如何在关闭时最小化到系统托盘

22

嗨，在我的 C# 应用程序中，我正在尝试将应用程序最小化到系统托盘，当窗体被关闭时。以下是我尝试过的代码。

   public void MinimizeToTray()
    {
        try
        {
            notifyIcon1.BalloonTipTitle = "Sample text";
            notifyIcon1.BalloonTipText = "Form is minimized";

            if (FormWindowState.Minimized == this.WindowState)
            {
                notifyIcon1.Visible = true;
                notifyIcon1.ShowBalloonTip(500);
                this.Hide();
            }
            else if (FormWindowState.Normal == this.WindowState)
            {
                notifyIcon1.Visible = false;
            }
        }
        catch(Exception ex)
        {
            MessageBox.Show(ex.Message);
        }

    }

我正在调用方法来形成关闭事件。但问题是它没有最小化到托盘，而只是关闭了窗体。

- Rakesh

当窗体关闭或最小化时？ - Danpe

你也取消/停止关闭事件了吗？如果应用程序在执行此操作后仍然关闭，那么这段代码将不会有太大帮助。 - Honza Brestan

@HonzaBrestan 当我点击关闭按钮时，尝试将其最小化到系统托盘。 - Rakesh

可能是重复问题：https://dev59.com/Z0_Ta4cB1Zd3GeqPAGAx - Jester

1

你能提供结束事件的代码吗？ - Honza Brestan

7个回答

22

在“Form Closing”事件中编写事件。

 private void Form1_FormClosing(object sender, FormClosingEventArgs e)
 {
        e.Cancel = true;                         
        Hide();
 }

使用自定义菜单栏编写通知图标以进行显示。

- Arunkumar Chandrasekaran

7

需要在构造函数中添加以下行： this.FormClosing += this.Form1_FormClosing; - temple

4

   namespace MinimizeTrayNotification
     {
      public partial class Form1 : Form
       {
    public Form1()
    {
        InitializeComponent();
    }

    private void MinimzedTray()
    {
        notifyIcon1.Visible = true;
        notifyIcon1.Icon = SystemIcons.Application;

        notifyIcon1.BalloonTipText = "Minimized";
        notifyIcon1.BalloonTipTitle = "Your Application is Running in BackGround";
        notifyIcon1.ShowBalloonTip(500);

    }

    private void MaxmizedFromTray()
    {
        notifyIcon1.Visible = true;
        notifyIcon1.BalloonTipText = "Maximized";
        notifyIcon1.BalloonTipTitle = "Application is Running in Foreground";
        notifyIcon1.ShowBalloonTip(500);


    }



    private void Form1_Resize(object sender, EventArgs e)
    {
        if(FormWindowState.Minimized==this.WindowState)
        {
        MinimzedTray();
        }
      else  if (FormWindowState.Normal == this.WindowState)
        {

            MaxmizedFromTray();
        }
        }

    private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)
    {
        this.WindowState = FormWindowState.Normal;
        Form1 frm = new Form1();
        frm.Show();
        MaxmizedFromTray();


    }

    private void notifyIcon1_MouseClick(object sender, MouseEventArgs e)
    {
        this.WindowState = FormWindowState.Normal;
    }

    private void Form1_FormClosing(object sender, FormClosingEventArgs e)
    {
        if (e.CloseReason == CloseReason.UserClosing)
        {
            e.Cancel = true;
            this.WindowState = FormWindowState.Minimized;
            this.ShowInTaskbar = false;
            this.Hide();

        }


    }

    private void notifyIcon1_Click(object sender, EventArgs e)
    {
        this.WindowState = FormWindowState.Normal;
        notifyIcon1.BalloonTipText = "Normal";
        notifyIcon1.ShowBalloonTip(500);
    }
 }

}

- Kunal

2

我相信这段代码会运行，但如果加上一两个注释来解释正在发生的事情，将会更有帮助！ - leo

对于 notifyIcon1_MouseDoubleClick 事件，你应该使用 this.Show() 而不是创建一个新的窗体实例。你可能希望你的窗体控件保持它们的值。 - prospector

2

您需要取消 FormClosing 事件，然后调用您的 MinimizeToTray() 函数。

这可以通过 FormClosingEventArgs 的 Cancel 属性来实现。

另外，考虑在某些情况下使用一个 bool 来允许关闭 Form，例如如果您正在使用 File > Exit 菜单或其他操作：

private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
    if(!allowClosing)
    {
        e.Cancel = true;
        MinimizeToTray();
    }
}

- emartel

不必使用allowClosing，您可以选择在FormClosingEventArgs中关闭的时间：

if (e.CloseReason == CloseReason.UserClosing)
{
    e.Cancel = true;
    this.WindowState = FormWindowState.Minimized;
}

- Trent Stewart

1

在关闭时最小化，将WindowState设置为Minimized

private void Form1_FormClosing(Object sender, FormClosingEventArgs e) {
    e.Cancel = true;
    WindowState = FormWindowState.Minimized;
}

- Sameera R.

0

您可以像以下C#示例一样处理FormClosing事件，例如Microsoft Form Closing Event

private void Form1_Closing(object sender, System.ComponentModel.CancelEventArgs e)
    {
        // Determine if text has changed in the textbox by comparing to original text.
        if (textBox1.Text != strMyOriginalText)
        {
            // Display a MsgBox asking the user to save changes or abort.
            if (MessageBox.Show("Do you want to save changes to your text?", "My Application",
                MessageBoxButtons.YesNo) == DialogResult.Yes)
            {
                // Cancel the Closing event from closing the form.
                e.Cancel = true;
                // Call method to save file...
            }
        }
}

- Uday

0

你需要使用 FormClosing 事件。

private void Form1_FormClosing(Object sender, FormClosingEventArgs e) {
    e.Cancel = true;
    MinimizeToTray();
}

- looper

网页内容由stack overflow 提供, 点击上面的

可以查看英文原文，
原文链接

- Emre · Accepted Answer

e.Cancel = true; 这段代码会一直取消事件，即使你关机了，但是这里有一个帮助你的代码：

e.Cancel = false;

 private void Form1_FormClosing(object sender, FormClosingEventArgs e)
 {
     if (e.CloseReason == CloseReason.UserClosing)
     {
          myNotifyIcon.Visible = true;
          this.Hide();
          e.Cancel = true;
     }
 }

这将允许以编程方式关闭表单。