Margins.Left Свойство

Определение

Пространство имен:

System.Drawing.Printing

Сборка:

System.Drawing.Common.dll

Пакет:

System.Drawing.Common v8.0.0

Исходный код:

Margins.cs

Получает или задает ширину левого поля в сотых долях дюйма.

public:
 property int Left { int get(); void set(int value); };

public int Left { get; set; }

member this.Left : int with get, set

Public Property Left As Integer

Значение свойства

Int32

Ширина левого поля в сотых долях дюйма.

Исключения

ArgumentException

Значение свойства Left меньше нуля.

Примеры

В этом примере используйте System.Drawingпространства имен , System.Drawing.Printingи System.IO .

В следующем примере кода для параметров страницы по умолчанию для документа задаются левое и правое поля шириной 1 дюйм, а верхние и нижние поля шириной 1,5 дюйма.

void Printing()
{
   try
   {
      
      /* This assumes that a variable of type string, named filePath,
              has been set to the path of the file to print. */
      streamToPrint = gcnew StreamReader( filePath );
      try
      {
         printFont = gcnew System::Drawing::Font( "Arial",10 );
         PrintDocument^ pd = gcnew PrintDocument;
         
         /* This assumes that a method, named pd_PrintPage, has been
                   defined. pd_PrintPage handles the PrintPage event. */
         pd->PrintPage += gcnew PrintPageEventHandler( this, &Sample::pd_PrintPage );
         
         /* This assumes that a variable of type string, named 
                   printer, has been set to the printer's name. */
         pd->PrinterSettings->PrinterName = printer;
         
         // Set the left and right margins to 1 inch.
         pd->DefaultPageSettings->Margins->Left = 100;
         pd->DefaultPageSettings->Margins->Right = 100;
         
         // Set the top and bottom margins to 1.5 inches.
         pd->DefaultPageSettings->Margins->Top = 150;
         pd->DefaultPageSettings->Margins->Bottom = 150;
         pd->Print();
      }
      finally
      {
         streamToPrint->Close();
      }

   }
   catch ( Exception^ ex ) 
   {
      MessageBox::Show( String::Concat( "An error occurred printing the file - ", ex->Message ) );
   }

}

public void Printing()
{
  try 
  {
    /* This assumes that a variable of type string, named filePath,
       has been set to the path of the file to print. */
    streamToPrint = new StreamReader (filePath);
    try 
    {
      printFont = new Font("Arial", 10);
      PrintDocument pd = new PrintDocument(); 
      /* This assumes that a method, named pd_PrintPage, has been
         defined. pd_PrintPage handles the PrintPage event. */
      pd.PrintPage += new PrintPageEventHandler(pd_PrintPage);
      /* This assumes that a variable of type string, named 
         printer, has been set to the printer's name. */
      pd.PrinterSettings.PrinterName = printer;

      // Set the left and right margins to 1 inch.
      pd.DefaultPageSettings.Margins.Left = 100;
      pd.DefaultPageSettings.Margins.Right = 100;
      // Set the top and bottom margins to 1.5 inches.
      pd.DefaultPageSettings.Margins.Top = 150;
      pd.DefaultPageSettings.Margins.Bottom = 150;

      pd.Print();
    } 
    finally 
    {
      streamToPrint.Close() ;
    }
  } 
  catch(Exception ex) 
  { 
    MessageBox.Show("An error occurred printing the file - " + ex.Message);
  }
}

Public Sub Printing()
    Try
        ' This assumes that a variable of type string, named filePath,
        ' has been set to the path of the file to print. 
        streamToPrint = New StreamReader(filePath)
        Try
            printFont = New Font("Arial", 10)
            Dim pd As New PrintDocument()
            ' This assumes that a method, named pd_PrintPage, has been
            ' defined. pd_PrintPage handles the PrintPage event. 
            AddHandler pd.PrintPage, AddressOf pd_PrintPage
            ' This assumes that a variable of type string, named
            ' printer, has been set to the printer's name. 
            pd.PrinterSettings.PrinterName = printer
               
            ' Set the left and right margins to 1 inch.
            pd.DefaultPageSettings.Margins.Left = 100
            pd.DefaultPageSettings.Margins.Right = 100
            ' Set the top and bottom margins to 1.5 inches.
            pd.DefaultPageSettings.Margins.Top = 150
            pd.DefaultPageSettings.Margins.Bottom = 150
               
            pd.Print()
        Finally
            streamToPrint.Close()
        End Try
    Catch ex As Exception
        MessageBox.Show("An error occurred printing the file - " & ex.Message)
    End Try
End Sub

Комментарии

Если вы измеряете поля в миллиметрах, умножьте нужную ширину поля в миллиметрах на 3,937, чтобы определить правильное измерение в сотых долях дюйма. Например, если вы хотите получить поле 25 мм, умножьте на 3,937 и результат будет равен 98 при округлении вниз. Затем необходимо задать для соответствующего Margins элемента значение 98.

См. также раздел

• Right
• Top
• Bottom