ParentForm Property

ContainerControl.ParentForm Property

Gets the form that the container control is assigned to.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

public:
property Form^ ParentForm {
	Form^ get ();
}
/** @property */
public Form get_ParentForm ()

public function get ParentForm () : Form

Not applicable.

Property Value

The Form that the container control is assigned to. This property will return null if the control is hosted inside of Internet Explorer or in another hosting context where there is no parent form.

The following code example shows how to create two forms: Form1 and Form2. Set the IsMdiContainer property of Form1 to true and make it the MdiParent of Form2. Next, create a button, button1, on each form. When the button on the parent form is clicked, the event handler displays the child form. When the button on the child form is clicked, the event handler displays the Name property of its parent form. Use the following two code segments to overwrite button1 event handlers in both forms.

   // The event handler on Form1.
private:
   void button1_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      // Create an instance of Form2.
      Form1^ f2 = gcnew Form1;

      // Make this form the parent of f2.
      f2->MdiParent = this;

      // Display the form.
      f2->Show();
   }

// The event handler on Form1.
private void button1_Click(Object sender, System.EventArgs e)
{
    // Create an instance of Form2.
    Form1 f2 = new Form1();
    // Make this form the parent of f2.
    f2.set_MdiParent(this);
    // Display the form.
    f2.Show();
} //button1_Click

   // The event handler on Form2.
private:
   void button1_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      // Get the Name property of the Parent.
      String^ s = ParentForm->Name;

      // Display the name in a message box.
      MessageBox::Show( String::Concat( "My Parent is ", s, "." ) );
   }

// The event handler on Form2.
private void button1_Click(Object sender, System.EventArgs e)
{
    // Get the Name property of the Parent.
    String s = get_ParentForm().get_Name();
    // Display the name in a message box.
    MessageBox.Show("My Parent is " + s + ".");
} //button1_Click

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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