Control.IsMnemonic(Char, String) Control.IsMnemonic(Char, String) Control.IsMnemonic(Char, String) Control.IsMnemonic(Char, String) Method

Definición

Determina si el carácter especificado es una tecla de acceso asignada al control en la cadena especificada.Determines if the specified character is the mnemonic character assigned to the control in the specified string.

public:
 static bool IsMnemonic(char charCode, System::String ^ text);
public static bool IsMnemonic (char charCode, string text);
static member IsMnemonic : char * string -> bool
Public Shared Function IsMnemonic (charCode As Char, text As String) As Boolean

Parámetros

charCode
Char Char Char Char

Carácter que se va a probar.The character to test.

text
String String String String

Cadena en la que se va a buscar.The string to search.

Devoluciones

true si el carácter charCode es la tecla de acceso asignada al control; en caso contrario, false.true if the charCode character is the mnemonic character assigned to the control; otherwise, false.

Ejemplos

En el ejemplo de código siguiente se muestra una extensión de la clase de botón que reemplaza el ProcessMnemonic método para presentar un comportamiento personalizado.The following code example demonstrates an extension of the button class that overrides the ProcessMnemonic method to exhibit custom behavior. El ejemplo también muestra el uso de la CanSelect y IsMnemonic propiedades.The example also demonstrates the use of the CanSelect and IsMnemonic properties. Para ejecutar este ejemplo, pegue el código siguiente después de una clase de formulario, en el mismo archivo.To run this example paste the following code after a form class, in the same file. Agregue un botón de tipo MnemonicButton al formulario.Add a button of type MnemonicButton to the form.

// This button is a simple extension of the button class that overrides
// the ProcessMnemonic method.  If the mnemonic is correctly entered,  
// the message box will appear and the click event will be raised.  
// This method makes sure the control is selectable and the 
// mnemonic is correct before displaying the message box
// and triggering the click event.
public ref class MyMnemonicButton: public Button
{
protected:
   bool ProcessMnemonic( char inputChar )
   {
      if ( CanSelect && IsMnemonic( inputChar, this->Text ) )
      {
         MessageBox::Show( "You've raised the click event "
         "using the mnemonic." );
         this->PerformClick();
         return true;
      }

      return false;
   }

};


// This button is a simple extension of the button class that overrides
// the ProcessMnemonic method.  If the mnemonic is correctly entered,  
// the message box will appear and the click event will be raised.  
public class MyMnemonicButton:Button

	// This method makes sure the control is selectable and the 
	// mneumonic is correct before displaying the message box
	// and triggering the click event.
{
	[UIPermission(
        SecurityAction.Demand, Window = UIPermissionWindow.AllWindows)]
        protected override bool ProcessMnemonic(char inputChar)
	{

		if (CanSelect&&IsMnemonic(inputChar, this.Text))
		{
			MessageBox.Show("You've raised the click event " +
				"using the mnemonic.");
			this.PerformClick();
			return true;
		}
		return false;
	}

}
' This button is a simple extension of the button class that overrides
' the ProcessMnemonic method.  If the mnemonic is correctly entered,  
' the message box will appear and the click event will be raised.  
Public Class MyMnemonicButton
    Inherits Button

    ' This method makes sure the control is selectable and the 
    ' mneumonic is correct before displaying the message box
    ' and triggering the click event.
    <System.Security.Permissions.UIPermission( _
    System.Security.Permissions.SecurityAction.Demand, Window:=UIPermissionWindow.AllWindows)> _
    Protected Overrides Function ProcessMnemonic( _
        ByVal inputChar As Char) As Boolean

        If (CanSelect And IsMnemonic(inputChar, Me.Text)) Then
            MessageBox.Show("You've raised the click event " _
                & "using the mnemonic.")
            Me.PerformClick()
            Return True
        End If
        Return False
    End Function

End Class

Comentarios

El carácter de tecla de acceso es el carácter inmediatamente posterior a la primera instancia de "&" en un String.The mnemonic character is the character immediately following the first instance of "&" in a String.

Seguridad

UIPermission
para todas las ventanas para la herencia de clases para llamar a este método.for all windows for inheriting classes to call this method. Enumeración asociada: AllWindows valor UIPermissionWindow.Associated enumeration: AllWindows value of UIPermissionWindow.

Se aplica a

Consulte también: