FontDialog.Apply-Ereignis

Tritt ein, wenn der Benutzer im Dialogfeld für die Schriftart auf die Schaltfläche Übernehmen klickt.

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

Syntax

'Declaration
Public Event Apply As EventHandler
'Usage
Dim instance As FontDialog
Dim handler As EventHandler

AddHandler instance.Apply, handler

public event EventHandler Apply

public:
event EventHandler^ Apply {
    void add (EventHandler^ value);
    void remove (EventHandler^ value);
}

/** @event */
public void add_Apply (EventHandler value)

/** @event */
public void remove_Apply (EventHandler value)

JScript unterstützt die Verwendung von Ereignissen, aber nicht die Deklaration von neuen Ereignissen.

Hinweise

Bei jedem Klicken auf die Schaltfläche Übernehmen wird ein weiteres Apply-Ereignis ausgelöst.

Weitere Informationen zum Behandeln von Ereignissen finden Sie unter Behandeln von Ereignissen.

Beispiel

Im folgenden Codebeispiel wird die Verwendung der Member MinSize, MaxSize, ShowEffects und FontMustExist veranschaulicht. Außerdem wird die Behandlung des Apply-Ereignisses veranschaulicht. Wenn Sie dieses Beispiel ausführen möchten, fügen Sie den folgenden Code in ein Formular ein, das ein FontDialog mit dem Namen FontDialog1 sowie einen Button mit dem Namen Button1 enthält.

Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click

    ' Set FontMustExist to true, which causes message box error
    ' if the user enters a font that does not exist. 
    FontDialog1.FontMustExist = True

    ' Set a minimum and maximum size to be
    ' shown in the FontDialog.
    FontDialog1.MaxSize = 32
    FontDialog1.MinSize = 18

    ' Show the Apply button in the dialog.
    FontDialog1.ShowApply = True

    ' Do not show effects such as Underline
    ' and Bold.
    FontDialog1.ShowEffects = False

    ' Save the existing font.
    Dim oldFont As System.Drawing.Font = Me.Font

    ' Show the dialog and save the result.
    Dim result As DialogResult = FontDialog1.ShowDialog()

    ' If The OK button in the Font dialog box is clicked, 
    ' set all the controls' fonts to the chosen font by
    ' calling the FontDialog1_Apply method.
    If result = DialogResult.OK Then
        FontDialog1_Apply(Me.Button1, New System.EventArgs)

        ' If the Cancel button is clicked, set the controls'
        ' fonts back to the original font.
    ElseIf (result = DialogResult.Cancel) Then
        Dim containedControl As Control
        For Each containedControl In Me.Controls
            containedControl.Font = oldFont
        Next

    End If
End Sub

' Handle the Apply event by setting all controls' fonts to 
' the chosen font. 
Private Sub FontDialog1_Apply(ByVal sender As Object, _
    ByVal e As System.EventArgs) Handles FontDialog1.Apply

    Me.Font = FontDialog1.Font
    Dim containedControl As Control
    For Each containedControl In Me.Controls
        containedControl.Font = FontDialog1.Font
    Next
End Sub

private void Button1_Click(System.Object sender, System.EventArgs e)
{
    // Set FontMustExist to true, which causes message box error
    // if the user enters a font that does not exist. 
    FontDialog1.FontMustExist = true;
    
    // Associate the method handling the Apply event with the event.
    FontDialog1.Apply += new System.EventHandler(FontDialog1_Apply);

    // Set a minimum and maximum size to be
    // shown in the FontDialog.
    FontDialog1.MaxSize = 32;
    FontDialog1.MinSize = 18;

    // Show the Apply button in the dialog.
    FontDialog1.ShowApply = true;

    // Do not show effects such as Underline
    // and Bold.
    FontDialog1.ShowEffects = false;
    
    // Save the existing font.
    System.Drawing.Font oldFont = this.Font;

    //Show the dialog, and get the result
    DialogResult result = FontDialog1.ShowDialog();
 
    // If the OK button in the Font dialog box is clicked, 
    // set all the controls' fonts to the chosen font by calling
    // the FontDialog1_Apply method.
    if (result == DialogResult.OK)
    {
        FontDialog1_Apply(this.Button1, new System.EventArgs());
    }
        // If Cancel is clicked, set the font back to
        // the original font.
    else if (result == DialogResult.Cancel)
    {
        this.Font = oldFont;
        foreach ( Control containedControl in this.Controls)
        {
            containedControl.Font = oldFont;
        }
    }
}

// Handle the Apply event by setting all controls' fonts to 
// the chosen font. 
private void FontDialog1_Apply(object sender, System.EventArgs e)
{

    this.Font = FontDialog1.Font;
    foreach ( Control containedControl in this.Controls )
    {
        containedControl.Font = FontDialog1.Font;
    }
}

void Button1_Click( System::Object^ sender, System::EventArgs^ e )
{
   // Set FontMustExist to true, which causes message box error
   // if the user enters a font that does not exist. 
   FontDialog1->FontMustExist = true;
   
   // Associate the method handling the Apply event with the event.
   FontDialog1->Apply += gcnew System::EventHandler( this, &Form1::FontDialog1_Apply );
   
   // Set a minimum and maximum size to be
   // shown in the FontDialog.
   FontDialog1->MaxSize = 32;
   FontDialog1->MinSize = 18;
   
   // Show the Apply button in the dialog.
   FontDialog1->ShowApply = true;
   
   // Do not show effects such as Underline
   // and Bold.
   FontDialog1->ShowEffects = false;
   
   // Save the existing font.
   System::Drawing::Font^ oldFont = this->Font;
   
   //Show the dialog, and get the result
   System::Windows::Forms::DialogResult result = FontDialog1->ShowDialog();
   
   // If the OK button in the Font dialog box is clicked, 
   // set all the controls' fonts to the chosen font by calling
   // the FontDialog1_Apply method.
   if ( result == ::DialogResult::OK )
   {
      FontDialog1_Apply( this->Button1, gcnew System::EventArgs );
   }
   // If Cancel is clicked, set the font back to
   // the original font.
   else
   
   // If Cancel is clicked, set the font back to
   // the original font.
   if ( result == ::DialogResult::Cancel )
   {
      this->Font = oldFont;
      System::Collections::IEnumerator^ myEnum = this->Controls->GetEnumerator();
      while ( myEnum->MoveNext() )
      {
         Control^ containedControl = safe_cast<Control^>(myEnum->Current);
         containedControl->Font = oldFont;
      }
   }
}


// Handle the Apply event by setting all controls' fonts to 
// the chosen font. 
void FontDialog1_Apply( Object^ sender, System::EventArgs^ e )
{
   this->Font = FontDialog1->Font;
   System::Collections::IEnumerator^ myEnum1 = this->Controls->GetEnumerator();
   while ( myEnum1->MoveNext() )
   {
      Control^ containedControl = safe_cast<Control^>(myEnum1->Current);
      containedControl->Font = FontDialog1->Font;
   }
}

private void button1_Click(Object sender, System.EventArgs e)
{
    // Set FontMustExist to true, which causes message box error
    // if the user enters a font that does not exist. 
    fontDialog1.set_FontMustExist(true);
    // Associate the method handling the Apply event with the event.
    fontDialog1.add_Apply(new System.EventHandler(fontDialog1_Apply));
    // Set a minimum and maximum size to be
    // shown in the FontDialog.
    fontDialog1.set_MaxSize(32);
    fontDialog1.set_MinSize(18);
    // Show the Apply button in the dialog.
    fontDialog1.set_ShowApply(true);
    // Do not show effects such as Underline
    // and Bold.
    fontDialog1.set_ShowEffects(false);
    // Save the existing font.
    System.Drawing.Font oldFont = this.get_Font();
    //Show the dialog, and get the result
    DialogResult result = fontDialog1.ShowDialog();
    // If the OK button in the Font dialog box is clicked, 
    // set all the controls' fonts to the chosen font by calling
    // the fontDialog1_Apply method.
    if (result.Equals(get_DialogResult().OK)) {
        fontDialog1_Apply(this.button1, new System.EventArgs());
    }
    // If Cancel is clicked, set the font back to
    // the original font.
    else {
        if (result.Equals(get_DialogResult().Cancel)) {
            this.set_Font(oldFont);
            for (int iCtr = 0; iCtr < this.get_Controls().get_Count();
                iCtr++) {
                Control containedControl = this.get_Controls().
                    get_Item(iCtr);
                containedControl.set_Font(oldFont);
            }
        }
    }
} //button1_Click

// Handle the Apply event by setting all controls' fonts to 
// the chosen font. 
private void fontDialog1_Apply(Object sender, System.EventArgs e)
{
    this.set_Font(fontDialog1.get_Font());
    for (int iCtr = 0; iCtr < this.get_Controls().get_Count(); 
        iCtr++) {
        Control containedControl = this.get_Controls().get_Item(iCtr);
        containedControl.set_Font(fontDialog1.get_Font());
    }
} //fontDialog1_Apply

Plattformen

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

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Versionsinformationen

.NET Framework

Unterstützt in: 2.0, 1.1, 1.0

Siehe auch

Referenz

FontDialog-Klasse
FontDialog-Member
System.Windows.Forms-Namespace
OnApply