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[英]Form in C# returns DialogResult.Cancel to Parent When It is Minimized
[英]C# WinForms: How do you prevent child form from being minimized when parent form is minimized?
我正在創建一個 C# WinForms MDI 應用程序。 我有一個主窗體,其中包含其他 4 個 forms。 我希望能夠將子 forms 移到父窗體之外(它們的 FormBorderStyle 值設置為相當大的工具欄,以便單獨的 windows 不會出現在每個子窗口的任務欄上)。 我可以通過對主表單使用以下代碼來完成此操作:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace Prototype
{
public partial class MdiParent : Form
{
private FastEyeControl m_ControlForm;
private FastEyeLogWindow m_LogForm;
private FastEyeConfiguration m_ConfigurationForm;
private ROCOrderWindow m_OrderLogForm;
public MdiParent()
{
InitializeComponent();
m_ControlForm = new FastEyeControl();
m_LogForm = new FastEyeLogWindow();
m_ConfigurationForm = new FastEyeConfiguration();
m_OrderLogForm = new ROCOrderWindow();
}
private void MdiParent_Load(object sender, EventArgs e)
{
m_ControlForm.Show(this);
m_LogForm.Show(this);
m_ConfigurationForm.Show(this);
m_OrderLogForm.Show(this);
}
}
}
但是,當我最小化父表單時,所有子 forms 也會被最小化(如預期的那樣)。 無論如何,當父 window 最小化時,是否有任何子 forms 被最小化? 基本上,如果需要,我希望用戶能夠調整單個子 forms 的大小並將其移動到父窗體之外(例如取消停靠 Visual Studio.NET 中的工具欄並將其放置在另一個監視器中)。 謝謝你的幫助!
我認為您將不得不從擁有/父級/mdi windows 中移出,而必須將它們全部設為無主頂級 windows,彼此“平行”。 然后編寫自己的邏輯,將一個 window 對接到另一個 window。
您實際上還沒有創建 MDI 應用程序,也沒有設置子窗體的 MdiParent 屬性。 應該清晰可見,您可以將子窗體移動到主窗體的范圍之外。
您通過使用 Show(owner) 重載讓他們擁有 windows。 這意味着它們將始終位於主 window 之上。 當您最小化主 window 時,也會被最小化。
只需調用 Show() 方法(無參數)。
好的,我開始工作了:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
namespace Prototype
{
public partial class MdiParent : Form
{
private FastEyeControl m_ControlForm;
private FastEyeLogWindow m_LogForm;
private FastEyeConfiguration m_ConfigurationForm;
private ROCOrderWindow m_OrderLogForm;
private Point m_ControlFormLocation;
private Point m_LogFormLocation;
private Point m_ConfigurationFormLocation;
private Point m_OrderLogFormLocation;
public MdiParent()
{
InitializeComponent();
m_ControlForm = new FastEyeControl();
m_LogForm = new FastEyeLogWindow();
m_ConfigurationForm = new FastEyeConfiguration();
m_OrderLogForm = new ROCOrderWindow();
m_ControlFormLocation = new Point(0, 25);
m_LogFormLocation = new Point(0, 405);
m_ConfigurationFormLocation = new Point(550, 25);
m_OrderLogFormLocation = new Point(0, 630);
}
private void MdiParent_Load(object sender, EventArgs e)
{
DockForm(m_ControlForm, m_ControlFormLocation);
DockForm(m_LogForm, m_LogFormLocation);
DockForm(m_ConfigurationForm, m_ConfigurationFormLocation);
DockForm(m_OrderLogForm, m_OrderLogFormLocation);
}
private void exitToolStripMenuItem_Click(object sender, EventArgs e)
{
this.Close();
}
private void DockForm(Form form, Point location)
{
form.TopLevel = false;
form.Location = location;
if (! this.Controls.Contains(form))
{
this.Controls.Add(form);
}
form.Visible = true;
}
private void UndockForm(Form form)
{
if (this.Controls.Contains(form))
{
this.Controls.Remove(form);
}
form.TopLevel = true;
form.Visible = true;
}
private void DockOrUndockForm(Form form, Point location)
{
if (this.Controls.Contains(form))
{
UndockForm(form);
}
else
{
DockForm(form, location);
}
}
private void ToggleDockingOrDockForm(Form form, Point location)
{
if (form.Visible)
{
DockOrUndockForm(form, location);
}
else
{
DockForm(form, location);
}
}
private void fastEyeControlToolStripMenuItem_Click(object sender, EventArgs e)
{
ToggleDockingOrDockForm(m_ControlForm, m_ControlFormLocation);
}
private void fastEyeLogToolStripMenuItem_Click(object sender, EventArgs e)
{
ToggleDockingOrDockForm(m_LogForm, m_LogFormLocation);
}
private void fastEyeConfigurationToolStripMenuItem_Click(object sender, EventArgs e)
{
ToggleDockingOrDockForm(m_ConfigurationForm, m_ConfigurationFormLocation);
}
private void rOCOrderLogToolStripMenuItem_Click(object sender, EventArgs e)
{
ToggleDockingOrDockForm(m_OrderLogForm, m_OrderLogFormLocation);
}
}
}
這段代碼安全嗎?
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