PrintPreviewDialog 构造函数
初始化 PrintPreviewDialog 类的新实例。
**命名空间:**System.Windows.Forms
**程序集:**System.Windows.Forms（在 system.windows.forms.dll 中）
语法
声明
Public Sub New
用法
Dim instance As New PrintPreviewDialog
public PrintPreviewDialog ()
public:
PrintPreviewDialog ()
public PrintPreviewDialog ()
public function PrintPreviewDialog ()
备注
创建 PrintPreviewDialog 的实例时，Document 属性被初始化为 空引用（在 Visual Basic 中为 Nothing）。可以在运行时更改这一属性的值。
示例
下面的代码示例演示 PrintPreviewDialog 如何设置 Document 和 UseAntiAlias 属性。该示例假定窗体包含一个名为 TreeView1 的 TreeView，其中包含 TreeNode 对象。每个 TreeNode 对象的 Tag 属性必须设置为一个能被运行该示例的计算机访问的完全限定文档名。将每个 TreeNode.Text 属性设置为一个标识由 TreeNode.Tag 属性指定的文件的字符串。例如，可以将 TreeNode1.Tag 设置为“c:\myDocuments\recipe.doc”，将 TreeNode1.Text 设置为“recipe.doc”。该示例还假定窗体包含一个名为 PrintPreviewDialog1 的 PrintPreviewDialog 和一个名为 Button1 的按钮。若要运行此示例，请调用位于该窗体的构造函数或 Load 事件处理程序中的 InitializePrintPreviewDialog 方法。
' Declare the dialog.
Friend WithEvents PrintPreviewDialog1 As PrintPreviewDialog
' Declare a PrintDocument object named document.
Private WithEvents document As New System.Drawing.Printing.PrintDocument
' Initalize the dialog.
Private Sub InitializePrintPreviewDialog()
' Create a new PrintPreviewDialog using constructor.
Me.PrintPreviewDialog1 = New PrintPreviewDialog
'Set the size, location, and name.
Me.PrintPreviewDialog1.ClientSize = New System.Drawing.Size(400, 300)
Me.PrintPreviewDialog1.Location = New System.Drawing.Point(29, 29)
Me.PrintPreviewDialog1.Name = "PrintPreviewDialog1"
' Set the minimum size the dialog can be resized to.
Me.PrintPreviewDialog1.MinimumSize = New System.Drawing.Size(375, 250)
' Set the UseAntiAlias property to true, which will allow the
' operating system to smooth fonts.
Me.PrintPreviewDialog1.UseAntiAlias = True
End Sub
Private Sub Button1_Click(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles Button1.Click
If Not (TreeView1.SelectedNode Is Nothing) Then
' Set the PrintDocument object's name to the selectedNode
' object's tag, which in this case contains the
' fully-qualified name of the document. This value will
' show when the dialog reports progress.
document.DocumentName = TreeView1.SelectedNode.Tag
End If
' Set the PrintPreviewDialog.Document property to
' the PrintDocument object selected by the user.
PrintPreviewDialog1.Document = document
' Call the ShowDialog method. This will trigger the document's
' PrintPage event.
PrintPreviewDialog1.ShowDialog()
End Sub
Private Sub document_PrintPage(ByVal sender As Object, _
ByVal e As System.Drawing.Printing.PrintPageEventArgs) _
Handles document.PrintPage
' Insert code to render the page here.
' This code will be called when the PrintPreviewDialog.Show
' method is called.
' The following code will render a simple
' message on the document in the dialog.
Dim text As String = "In document_PrintPage method."
Dim printFont As New System.Drawing.Font _
("Arial", 35, System.Drawing.FontStyle.Regular)
e.Graphics.DrawString(text, printFont, _
System.Drawing.Brushes.Black, 0, 0)
End Sub
// Declare the dialog.
internal PrintPreviewDialog PrintPreviewDialog1;
// Declare a PrintDocument object named document.
private System.Drawing.Printing.PrintDocument document =
new System.Drawing.Printing.PrintDocument();
// Initalize the dialog.
private void InitializePrintPreviewDialog()
{
// Create a new PrintPreviewDialog using constructor.
this.PrintPreviewDialog1 = new PrintPreviewDialog();
//Set the size, location, and name.
this.PrintPreviewDialog1.ClientSize =
new System.Drawing.Size(400, 300);
this.PrintPreviewDialog1.Location =
new System.Drawing.Point(29, 29);
this.PrintPreviewDialog1.Name = "PrintPreviewDialog1";
// Associate the event-handling method with the
// document's PrintPage event.
this.document.PrintPage +=
new System.Drawing.Printing.PrintPageEventHandler
(document_PrintPage);
// Set the minimum size the dialog can be resized to.
this.PrintPreviewDialog1.MinimumSize =
new System.Drawing.Size(375, 250);
// Set the UseAntiAlias property to true, which will allow the
// operating system to smooth fonts.
this.PrintPreviewDialog1.UseAntiAlias = true;
}
private void Button1_Click(object sender, System.EventArgs e)
{
if (TreeView1.SelectedNode != null)
// Set the PrintDocument object's name to the selectedNode
// object's tag, which in this case contains the
// fully-qualified name of the document. This value will
// show when the dialog reports progress.
{
document.DocumentName = TreeView1.SelectedNode.Tag.ToString();
}
// Set the PrintPreviewDialog.Document property to
// the PrintDocument object selected by the user.
PrintPreviewDialog1.Document = document;
// Call the ShowDialog method. This will trigger the document's
// PrintPage event.
PrintPreviewDialog1.ShowDialog();
}
private void document_PrintPage(object sender,
System.Drawing.Printing.PrintPageEventArgs e)
{
// Insert code to render the page here.
// This code will be called when the PrintPreviewDialog.Show
// method is called.
// The following code will render a simple
// message on the document in the dialog.
string text = "In document_PrintPage method.";
System.Drawing.Font printFont =
new System.Drawing.Font("Arial", 35,
System.Drawing.FontStyle.Regular);
e.Graphics.DrawString(text, printFont,
System.Drawing.Brushes.Black, 0, 0);
}
// Declare the dialog.
internal:
PrintPreviewDialog^ PrintPreviewDialog1;
private:
// Declare a PrintDocument object named document.
System::Drawing::Printing::PrintDocument^ document;
// Initalize the dialog.
void InitializePrintPreviewDialog()
{
// Create a new PrintPreviewDialog using constructor.
this->PrintPreviewDialog1 = gcnew PrintPreviewDialog;
//Set the size, location, and name.
this->PrintPreviewDialog1->ClientSize = System::Drawing::Size( 400, 300 );
this->PrintPreviewDialog1->Location = System::Drawing::Point( 29, 29 );
this->PrintPreviewDialog1->Name = "PrintPreviewDialog1";
// Associate the event-handling method with the
// document's PrintPage event.
this->document->PrintPage += gcnew System::Drawing::Printing::PrintPageEventHandler( this, &Form1::document_PrintPage );
// Set the minimum size the dialog can be resized to.
this->PrintPreviewDialog1->MinimumSize = System::Drawing::Size( 375, 250 );
// Set the UseAntiAlias property to true, which will allow the
// operating system to smooth fonts.
this->PrintPreviewDialog1->UseAntiAlias = true;
}
void Button1_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
if ( TreeView1->SelectedNode != nullptr )
{
document->DocumentName = TreeView1->SelectedNode->Tag->ToString();
}
// Set the PrintPreviewDialog.Document property to
// the PrintDocument object selected by the user.
PrintPreviewDialog1->Document = document;
// Call the ShowDialog method. This will trigger the document's
// PrintPage event.
PrintPreviewDialog1->ShowDialog();
}
void document_PrintPage( Object^ /*sender*/, System::Drawing::Printing::PrintPageEventArgs^ e )
{
// Insert code to render the page here.
// This code will be called when the PrintPreviewDialog.Show
// method is called.
// The following code will render a simple
// message on the document in the dialog.
String^ text = "In document_PrintPage method.";
System::Drawing::Font^ printFont = gcnew System::Drawing::Font( "Arial",35,System::Drawing::FontStyle::Regular );
e->Graphics->DrawString( text, printFont, System::Drawing::Brushes::Black, 0, 0 );
}
// Declare the dialog.
PrintPreviewDialog printPreviewDialog1;
// Declare a PrintDocument object named document.
private System.Drawing.Printing.PrintDocument document =
new System.Drawing.Printing.PrintDocument();
// Initalize the dialog.
private void InitializePrintPreviewDialog()
{
// Create a new PrintPreviewDialog using constructor.
this.printPreviewDialog1 = new PrintPreviewDialog();
//Set the size, location, and name.
this.printPreviewDialog1.set_ClientSize(
new System.Drawing.Size(400, 300));
this.printPreviewDialog1.set_Location(new System.Drawing.Point(29, 29));
this.printPreviewDialog1.set_Name("PrintPreviewDialog1");
// Associate the event-handling method with the
// document's PrintPage event.
this.document.add_PrintPage(
new System.Drawing.Printing.PrintPageEventHandler(
document_PrintPage));
// Set the minimum size the dialog can be resized to.
this.printPreviewDialog1.set_MinimumSize(
new System.Drawing.Size(375, 250));
// Set the UseAntiAlias property to true, which will allow the
// operating system to smooth fonts.
this.printPreviewDialog1.set_UseAntiAlias(true);
} //InitializePrintPreviewDialog
private void button1_Click(Object sender, System.EventArgs e)
{
if (treeView1.get_SelectedNode() != null) {
// Set the PrintDocument object's name to the selectedNode
// object's tag, which in this case contains the
// fully-qualified name of the document. This value will
// show when the dialog reports progress.
document.set_DocumentName(
treeView1.get_SelectedNode().get_Tag().ToString());
}
// Set the PrintPreviewDialog.Document property to
// the PrintDocument object selected by the user.
printPreviewDialog1.set_Document(document);
// Call the ShowDialog method. This will trigger the document's
// PrintPage event.
printPreviewDialog1.ShowDialog();
} //button1_Click
private void document_PrintPage(Object sender,
System.Drawing.Printing.PrintPageEventArgs e)
{
// Insert code to render the page here.
// This code will be called when the PrintPreviewDialog.Show
// method is called.
// The following code will render a simple
// message on the document in the dialog.
String text = "In document_PrintPage method.";
System.Drawing.Font printFont =
new System.Drawing.Font("Arial", 35,
System.Drawing.FontStyle.Regular);
e.get_Graphics().DrawString(text, printFont,
System.Drawing.Brushes.get_Black(), 0, 0);
} //document_PrintPage
平台
Windows 98、Windows 2000 SP4、Windows CE、Windows Millennium Edition、Windows Mobile for Pocket PC、Windows Mobile for Smartphone、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition
.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表，请参见系统要求。
版本信息
.NET Framework
受以下版本支持：2.0、1.1、1.0
请参见
参考
PrintPreviewDialog 类
PrintPreviewDialog 成员
System.Windows.Forms 命名空间
PrintDocument
PrintPreviewControl 类