目前我可以打印正确缩放的单个页面以适合我正在打印的用户控件。但是,用户控件的大小超出了页面大小,我需要它来打印另一个页面与用户控件的剩余部分。任何想法如何去做?我已经看过打印固定文档或将视觉转储到位图并将其剪切掉。
private void Print( Visual v )
{
System.Windows.FrameworkElement e = v as System.Windows.FrameworkElement;
if( e == null )
return;
PrintDialog pd = new PrintDialog();
if( pd.ShowDialog() == true )
{
//store original scale
Transform originalScale = e.LayoutTransform;
//get selected printer capabilities
System.Printing.PrintCapabilities capabilities = pd.PrintQueue.GetPrintCapabilities( pd.PrintTicket );
//get scale of the print wrt to screen of WPF visual
double scaley = Math.Min( capabilities.PageImageableArea.ExtentWidth / e.ActualWidth, capabilities.PageImageableArea.ExtentHeight /
e.ActualHeight );
double scalex = Math.Max( capabilities.PageImageableArea.ExtentWidth / e.ActualWidth, capabilities.PageImageableArea.ExtentHeight /
e.ActualHeight );
//Transform the Visual to scale
e.LayoutTransform = new ScaleTransform( 0.2823293807641634 + 0.2498215560314061, 0.2823293807641634 + 0.2498215560314061 );
//get the size of the printer page
System.Windows.Size sz = new System.Windows.Size( capabilities.PageImageableArea.ExtentWidth, capabilities.PageImageableArea.ExtentHeight );
//update the layout of the visual to the printer page size.
e.Measure( sz );
e.Arrange( new System.Windows.Rect( new System.Windows.Point( capabilities.PageImageableArea.OriginWidth, capabilities.PageImageableArea.OriginHeight ), sz ) );
//now print the visual to printer to fit on the one page.
pd.PrintVisual( v, "My Print" );
//apply the original transform.
e.LayoutTransform = originalScale;
}
}
private void UserControl_Loaded( object sender, RoutedEventArgs e )
{
Print( this.gdOuterReport );
}