PrintDialog.ShowDialog 方法

定義

命名空間:

System.Windows.Controls

組件:

PresentationFramework.dll

叫用 PrintDialog 作為強制回應對話方塊。

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)

傳回

Nullable<Boolean>

true 如果使用者按一下 [列印] 則為 ; false 如果使用者按一下 [ 取消]，或 null 如果使用者關閉對話方塊，但未按一下 [列印 ] 或 [ 取消]。

屬性

SecurityCriticalAttribute

範例

下列範例示範如何在程式碼中使用 ShowDialog 方法。

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