C＃Panel作为MDI容器

在C＃中，我想创建一个具有MDI容器属性的面板，即。 isMdiContainer = true。

我试过这样的事

form.MDIParent = this.panel1; 

但那不行。 有什么建议？

Answer 1

您可以创建自定义表单，删除所有边框和工具栏，使其尽可能贴近面板。 然后将新的自定义表单设为MdiContainer。

基本上，您只能在Form上设置IsMDIContainer属性。 这意味着只有表单可以是MdiContainer。

Answer 2

可以创建一个MDI面板并在该面板中显示表单，类似下面的代码就可以完成这项工作

Mdi-Panel定义：

 public class MdiClientPanel : Panel { private Form mdiForm; private MdiClient ctlClient = new MdiClient(); public MdiClientPanel() { base.Controls.Add(this.ctlClient); } public Form MdiForm { get { if (this.mdiForm == null) { this.mdiForm = new Form(); /// set the hidden ctlClient field which is used to determine if the form is an MDI form System.Reflection.FieldInfo field = typeof(Form).GetField("ctlClient", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance); field.SetValue(this.mdiForm, this.ctlClient); } return this.mdiForm; } } } 

用法：

 /// mdiChildForm is the form that should be showed in the panel /// mdiClientPanel is an instance of the MdiClientPanel myMdiChildForm.MdiParent = mdiClientPanel1.MdiForm; 

Answer 3

我使用了上面的Mathias的答案，并且能够摆脱评论中提出的大多数问题。 我也为子表单创建了一个帮助类，以防任何人想要使用它和/或使其更好。

  public class MdiClientPanel : Panel { private MdiClient _ctlClient = new MdiClient(); // Callback event when a child is activated public delegate void ActivateHandler(object sender, MdiClientForm child); public event ActivateHandler OnChildActivated; /// 
 /// The current active child form /// 
 public Form ActiveMDIWnd { get; set; } /// 
 /// List of available forms /// 
 public List ChildForms = new List(); /// 
 /// Std constructor /// 
 public MdiClientPanel() { base.Controls.Add(_ctlClient); } private Form _mdiForm = null; public Form MdiForm { get { if (_mdiForm == null) { _mdiForm = new Form(); // Set the hidden _ctlClient field which is used to determine if the form is an MDI form System.Reflection.FieldInfo field = typeof(Form).GetField("ctlClient", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance); field.SetValue(_mdiForm, _ctlClient); } return _mdiForm; } } private void InitializeComponent() { SuspendLayout(); ResumeLayout(false); } /// 
 /// Add this Form to our list of children and set the MDI relationship up /// 
 /// The new kid /// The new kid public MdiClientForm AddChild(MdiClientForm child) { child.MyMdiContainer = this; child.MdiParent = MdiForm; ChildForms.Add(child); return child; } /// 
 /// The user sent a "restore" command, so issue it to all children /// 
 public void RestoreChildForms() { foreach (DataTableForm child in ChildForms) { child.WindowState = FormWindowState.Normal; child.MaximizeBox = true; child.MinimizeBox = true; } } /// 
 /// Send the Activated message to the owner of this panel (if they are listening) /// 
 /// The child that was just activated public void ChildActivated(MdiClientForm child) { ActiveMDIWnd = child; if (OnChildActivated != null) OnChildActivated(this, child); } /// 
 /// The child closed so remove them from our available form list /// 
 /// The child that closed public void ChildClosed(MdiClientForm child) { ChildForms.Remove(child); } } /// 
 /// A wrapper class for any form wanting to be an MDI child of an MDI Panel /// 
 public class MdiClientForm : Form { /// 
 /// My parent MDI container /// 
 public MdiClientPanel MyMdiContainer { get; set; } /// 
 /// Standard Constructor /// 
 public MdiClientForm() { Activated += OnFormActivated; FormClosed += OnFormClosed; } /// 
 /// Reports back to the container when we close /// 
 void OnFormClosed(object sender, FormClosedEventArgs e) { MyMdiContainer.ChildClosed(this); } /// 
 /// Reports back to the parent container when we are activated /// 
 private void OnFormActivated(object sender, EventArgs e) { MyMdiContainer.ChildActivated(this); } }