IButtonControl.PerformClick Methode

public:
 void PerformClick();

public void PerformClick();

abstract member PerformClick : unit -> unit

Public Sub PerformClick ()

Voorbeelden

In het volgende voorbeeld wordt de ButtonBase klasse overgenomen en wordt de IButtonControl interface geïmplementeerd. Implementatie wordt toegevoegd aan de DialogResult eigenschap en de NotifyDefault methoden PerformClick .

#using <System.dll>
#using <System.Drawing.dll>
#using <System.Windows.Forms.dll>

using namespace System;
using namespace System::Windows::Forms;
using namespace System::Drawing;

public ref class MyButton: public ButtonBase, public IButtonControl
{
private:
   System::Windows::Forms::DialogResult myDialogResult;

public:
   MyButton()
   {
      // Make the button White and a Popup style
      // so it can be distinguished on the form.
      this->FlatStyle = ::FlatStyle::Popup;
      this->BackColor = Color::White;
   }

   property System::Windows::Forms::DialogResult DialogResult 
   {
      // Add implementation to the IButtonControl.DialogResult property.
      virtual System::Windows::Forms::DialogResult get()
      {
         return this->myDialogResult;
      }

      virtual void set( System::Windows::Forms::DialogResult value )
      {
         if ( Enum::IsDefined( System::Windows::Forms::DialogResult::typeid, value ) )
         {
            this->myDialogResult = value;
         }
      }
   }

   // Add implementation to the IButtonControl.NotifyDefault method.
   virtual void NotifyDefault( bool value )
   {
      if ( this->IsDefault != value )
      {
         this->IsDefault = value;
      }
   }

   // Add implementation to the IButtonControl.PerformClick method.
   virtual void PerformClick()
   {
      if ( this->CanSelect )
      {
         this->OnClick( EventArgs::Empty );
      }
   }
};

using System;
using System.Windows.Forms;
using System.Drawing;

public class MyButton : ButtonBase, IButtonControl
{
    private DialogResult myDialogResult;

    public MyButton()
    {
        // Make the button White and a Popup style
        // so it can be distinguished on the form.
        this.FlatStyle = FlatStyle.Popup;
        this.BackColor = Color.White;
    }
        
    // Add implementation to the IButtonControl.DialogResult property.
    public DialogResult DialogResult
    {
        get
        {
            return this.myDialogResult;
        }

        set
        {
            if(Enum.IsDefined(typeof(DialogResult), value))				
            {
                this.myDialogResult = value;
            }
        }	
    }

    // Add implementation to the IButtonControl.NotifyDefault method.
    public void NotifyDefault(bool value)
    {
        if(this.IsDefault != value)
        {
            this.IsDefault = value;
        }
    }

    // Add implementation to the IButtonControl.PerformClick method.
    public void PerformClick()
    {
        if(this.CanSelect)
        {
            this.OnClick(EventArgs.Empty);
        }
    }
}

Imports System.Windows.Forms
Imports System.Drawing


Public Class MyButton
   Inherits ButtonBase
   Implements IButtonControl 
   Private myDialogResult As DialogResult
      
   Public Sub New()
      ' Make the button White and a Popup style      ' so it can be distinguished on the form.
      Me.FlatStyle = FlatStyle.Popup
      Me.BackColor = Color.White
   End Sub
   
   ' Add implementation to the IButtonControl.DialogResult property.
   Public Property DialogResult() As DialogResult Implements IButtonControl.DialogResult
      Get
         Return Me.myDialogResult
      End Get
      
      Set
         If [Enum].IsDefined(GetType(DialogResult), value) Then
            Me.myDialogResult = value
         End If
      End Set
   End Property
   
   ' Add implementation to the IButtonControl.NotifyDefault method.
   Public Sub NotifyDefault(value As Boolean) Implements IButtonControl.NotifyDefault
      If Me.IsDefault <> value Then
         Me.IsDefault = value
      End If
   End Sub 
      
   ' Add implementation to the IButtonControl.PerformClick method.
   Public Sub PerformClick() Implements IButtonControl.PerformClick
      If Me.CanSelect Then
         Me.OnClick(EventArgs.Empty)
      End If
   End Sub

End Class

Opmerkingen

Deze methode wordt aangeroepen voor de knop met focus of voor de standaardknop (als er geen andere knop focus heeft) wanneer de gebruiker op enter drukt. Deze methode wordt ook aangeroepen wanneer de gebruiker op esc drukt als de knop is ingesteld als de knop annuleren.

Zie ook

• Click