Form.DialogResult Vlastnost

public:
 property System::Windows::Forms::DialogResult DialogResult { System::Windows::Forms::DialogResult get(); void set(System::Windows::Forms::DialogResult value); };

[System.ComponentModel.Browsable(false)]
public System.Windows.Forms.DialogResult DialogResult { get; set; }

[<System.ComponentModel.Browsable(false)>]
member this.DialogResult : System.Windows.Forms.DialogResult with get, set

Public Property DialogResult As DialogResult

Hodnota vlastnosti

A DialogResult , který představuje výsledek formuláře při použití jako dialogové okno.

Atributy

BrowsableAttribute

Výjimky

Příklady

Následující příklad zobrazí formulář jako dialogové okno a zobrazí okno se zprávou, zda bylo kliknutí na tlačítko OK nebo Zrušit formuláře odkazem na DialogResult vlastnost formuláře.

void CreateMyForm()
{
   
   // Create a new instance of the form.
   Form^ form1 = gcnew Form;
   
   // Create two buttons to use as the accept and cancel buttons.
   Button^ button1 = gcnew Button;
   Button^ button2 = gcnew Button;
   
   // Set the text of button1 to "OK".
   button1->Text = "OK";
   
   // Set the position of the button on the form.
   button1->Location = Point(10,10);
   
   // Set the text of button2 to "Cancel".
   button2->Text = "Cancel";
   
   // Set the position of the button based on the location of button1.
   button2->Location = Point(button1->Left,button1->Height + button1->Top + 10);
   
   // Make button1's dialog result OK.
   button1->DialogResult = ::DialogResult::OK;
   
   // Make button2's dialog result Cancel.
   button2->DialogResult = ::DialogResult::Cancel;
   
   // Set the caption bar text of the form.   
   form1->Text = "My Dialog Box";
   
   // Define the border style of the form to a dialog box.
   form1->FormBorderStyle = ::FormBorderStyle::FixedDialog;
   
   // Set the accept button of the form to button1.
   form1->AcceptButton = button1;
   
   // Set the cancel button of the form to button2.
   form1->CancelButton = button2;
   
   // Set the start position of the form to the center of the screen.
   form1->StartPosition = FormStartPosition::CenterScreen;
   
   // Add button1 to the form.
   form1->Controls->Add( button1 );
   
   // Add button2 to the form.
   form1->Controls->Add( button2 );
   
   // Display the form as a modal dialog box.
   form1->ShowDialog();
   
   // Determine if the OK button was clicked on the dialog box.
   if ( form1->DialogResult == ::DialogResult::OK )
   {
      
      // Display a message box indicating that the OK button was clicked.
      MessageBox::Show( "The OK button on the form was clicked." );
      
      // Optional: Call the Dispose method when you are finished with the dialog box.
      delete form1;
   }
   else
   {
      
      // Display a message box indicating that the Cancel button was clicked.
      MessageBox::Show( "The Cancel button on the form was clicked." );
      
      // Optional: Call the Dispose method when you are finished with the dialog box.
      delete form1;
   }
}

public void CreateMyForm()
 {
    // Create a new instance of the form.
    Form form1 = new Form();
    // Create two buttons to use as the accept and cancel buttons.
    Button button1 = new Button ();
    Button button2 = new Button ();
   
    // Set the text of button1 to "OK".
    button1.Text = "OK";
    // Set the position of the button on the form.
    button1.Location = new Point (10, 10);
    // Set the text of button2 to "Cancel".
    button2.Text = "Cancel";
    // Set the position of the button based on the location of button1.
    button2.Location 
       = new Point (button1.Left, button1.Height + button1.Top + 10);
    // Make button1's dialog result OK.
    button1.DialogResult = DialogResult.OK;
    // Make button2's dialog result Cancel.
    button2.DialogResult = DialogResult.Cancel;
    // Set the caption bar text of the form.   
    form1.Text = "My Dialog Box";
 
    // Define the border style of the form to a dialog box.
    form1.FormBorderStyle = FormBorderStyle.FixedDialog;
    // Set the accept button of the form to button1.
    form1.AcceptButton = button1;
    // Set the cancel button of the form to button2.
    form1.CancelButton = button2;
    // Set the start position of the form to the center of the screen.
    form1.StartPosition = FormStartPosition.CenterScreen;
    
    // Add button1 to the form.
    form1.Controls.Add(button1);
    // Add button2 to the form.
    form1.Controls.Add(button2);
    
    // Display the form as a modal dialog box.
    form1.ShowDialog();
 
    // Determine if the OK button was clicked on the dialog box.
    if (form1.DialogResult == DialogResult.OK)
    {
       // Display a message box indicating that the OK button was clicked.
       MessageBox.Show("The OK button on the form was clicked.");
       // Optional: Call the Dispose method when you are finished with the dialog box.
       form1.Dispose();
    }
    else
    {
       // Display a message box indicating that the Cancel button was clicked.
       MessageBox.Show("The Cancel button on the form was clicked.");
       // Optional: Call the Dispose method when you are finished with the dialog box.
       form1.Dispose();
    }
 }

Public Sub CreateMyForm()
    ' Create a new instance of the form.
    Dim form1 As New Form()
    ' Create two buttons to use as the accept and cancel buttons.
    Dim button1 As New Button()
    Dim button2 As New Button()
    
    ' Set the text of button1 to "OK".
    button1.Text = "OK"
    ' Set the position of the button on the form.
    button1.Location = New Point(10, 10)
    ' Set the text of button2 to "Cancel".
    button2.Text = "Cancel"
    ' Set the position of the button based on the location of button1.
    button2.Location = New Point(button1.Left, button1.Height + button1.Top + 10)
    ' Make button1's dialog result OK.
    button1.DialogResult = DialogResult.OK
    ' Make button2's dialog result Cancel.
    button2.DialogResult = DialogResult.Cancel
    ' Set the caption bar text of the form.   
    form1.Text = "My Dialog Box"
    
    ' Define the border style of the form to a dialog box.
    form1.FormBorderStyle = FormBorderStyle.FixedDialog
    ' Set the accept button of the form to button1.
    form1.AcceptButton = button1
    ' Set the cancel button of the form to button2.
    form1.CancelButton = button2
    ' Set the start position of the form to the center of the screen.
    form1.StartPosition = FormStartPosition.CenterScreen
    
    ' Add button1 to the form.
    form1.Controls.Add(button1)
    ' Add button2 to the form.
    form1.Controls.Add(button2)
    
    ' Display the form as a modal dialog box.
    form1.ShowDialog()
    
    ' Determine if the OK button was clicked on the dialog box.
    If form1.DialogResult = DialogResult.OK Then
        ' Display a message box indicating that the OK button was clicked.
        MessageBox.Show("The OK button on the form was clicked.")
        ' Optional: Call the Dispose method when you are finished with the dialog box.
        form1.Dispose
    ' Display a message box indicating that the Cancel button was clicked.
    Else
        MessageBox.Show("The Cancel button on the form was clicked.")
        ' Optional: Call the Dispose method when you are finished with the dialog box.
        form1.Dispose
    End If
End Sub

Poznámky

Výsledkem dialogového okna formuláře je hodnota, která se vrátí z formuláře, když se zobrazí jako modální dialogové okno. Pokud je formulář zobrazen jako dialogové okno, nastavení této vlastnosti s hodnotou z výčtu DialogResult nastaví hodnotu výsledku dialogového okna pro formulář, skryje modální dialogové okno a vrátí řízení volajícímu formuláři. Tato vlastnost je obvykle nastavena DialogResult vlastností Button ovládacího prvku ve formuláři. Když uživatel klikne na Button ovládací prvek, hodnota přiřazená DialogResult vlastnosti objektu Button je přiřazena DialogResult vlastnosti formuláře.

Když se formulář zobrazí jako modální dialogové okno, kliknutím na tlačítko Zavřít (tlačítko s X v pravém horním rohu formuláře) způsobíte, že formulář bude skrytý a DialogResult vlastnost se nastaví na DialogResult.Cancel. Metoda Close se automaticky nevolá, když uživatel klikne na tlačítko Zavřít dialogového okna nebo nastaví hodnotu DialogResult vlastnosti. Místo toho je formulář skrytý a lze ho znovu zobrazit bez vytvoření nové instance dialogového okna. Kvůli tomuto chování musíte volat Dispose metodu formuláře, když už aplikace formulář nepotřebuje.

Pomocí této vlastnosti můžete určit, jak se dialogové okno zavře, aby bylo možné správně zpracovat akce provedené v dialogovém okně.

Platí pro

Viz také

• DialogResult
• DialogResult