PrintDialog.ShowDialog Metoda

Definicja

Przestrzeń nazw:

System.Windows.Controls

Zestaw:

PresentationFramework.dll

Wywołuje jako PrintDialog modalne okno dialogowe.

public:
 Nullable<bool> ShowDialog();

[System.Security.SecurityCritical]
public bool? ShowDialog ();

public bool? ShowDialog ();

[<System.Security.SecurityCritical>]
member this.ShowDialog : unit -> Nullable<bool>

member this.ShowDialog : unit -> Nullable<bool>

Public Function ShowDialog () As Nullable(Of Boolean)

Zwraca

Nullable<Boolean>

true jeśli użytkownik kliknie przycisk Drukuj; false jeśli użytkownik kliknie przycisk Anuluj lub null jeśli użytkownik zamknie okno dialogowe bez kliknięcia przycisku Drukuj lub Anuluj.

Atrybuty

SecurityCriticalAttribute

Przykłady

W poniższym przykładzie pokazano, jak używać ShowDialog metody w kodzie.

private void InvokePrint(object sender, RoutedEventArgs e)
    {
        // Create the print dialog object and set options
        PrintDialog pDialog = new PrintDialog();
        pDialog.PageRangeSelection = PageRangeSelection.AllPages;
        pDialog.UserPageRangeEnabled = true;

        // Display the dialog. This returns true if the user presses the Print button.
        Nullable<Boolean> print = pDialog.ShowDialog();
        if (print == true)
        {
            XpsDocument xpsDocument = new XpsDocument("C:\\FixedDocumentSequence.xps", FileAccess.ReadWrite);
            FixedDocumentSequence fixedDocSeq = xpsDocument.GetFixedDocumentSequence();
            pDialog.PrintDocument(fixedDocSeq.DocumentPaginator, "Test print job");
        }
    }

Private Sub InvokePrint(ByVal sender As Object, ByVal e As RoutedEventArgs)
        ' Create the print dialog object and set options
        Dim pDialog As New PrintDialog()
        pDialog.PageRangeSelection = PageRangeSelection.AllPages
        pDialog.UserPageRangeEnabled = True

        ' Display the dialog. This returns true if the user presses the Print button.
        Dim print? As Boolean = pDialog.ShowDialog()
        If print = True Then
            Dim xpsDocument As New XpsDocument("C:\FixedDocumentSequence.xps", FileAccess.ReadWrite)
            Dim fixedDocSeq As FixedDocumentSequence = xpsDocument.GetFixedDocumentSequence()
            pDialog.PrintDocument(fixedDocSeq.DocumentPaginator, "Test print job")
        End If
End Sub