Hello everybody,
In my app my xaml has a xamdock which includes a xamdatachart. Xamdatachart shows a single lineserie. There is no problem when showing the lineserie in the graph. But when I tried to print xamdock, it prints a blank page. I searched the reason and find that when the lineserie includes empty data for 2 days my print function prints blank page. But if there is no empty data for 2 days, it prints succesfuly.
So how can I fix that problem? I added my printing code and my graph image as attachment in the below.
Thanks
if (dialog.ShowDialog() == true) { //Backup old layout before the transform Transform oldTransform = xamDock1.LayoutTransform; //get selected printer capabilities PrintCapabilities capabilities = dialog.PrintQueue.GetPrintCapabilities(dialog.PrintTicket); //get width scale double scale = (capabilities.PageImageableArea.ExtentWidth / xamDock1.ActualWidth); //get height scale double scale2 = (capabilities.PageImageableArea.ExtentHeight / xamDock1.ActualHeight); //Transform the Visual to xamdock scale. xamDock1.LayoutTransform = new ScaleTransform(scale, scale2); //Backup old size before the transform Size oldSize = new Size(xamDock1.ActualWidth, xamDock1.ActualHeight); //get the size of the printer page Size sz = new Size(capabilities.PageImageableArea.ExtentWidth, capabilities.PageImageableArea.ExtentHeight); //update the layout of the visual to the printer page size. xamDock1.Measure(sz); xamDock1.Arrange(new Rect(new Point(capabilities.PageImageableArea.OriginWidth, capabilities.PageImageableArea.OriginHeight), sz)); //now print the visual to printer to fit on the one page. dialog.PrintVisual(xamDock1, "Printing"); //Actions to use old transform and size informations to prevent actual UI changes. xamDock1.LayoutTransform = oldTransform; xamDock1.Measure(oldSize); xamDock1.Arrange(new Rect(new Point(0, 0), oldSize)); }
if (dialog.ShowDialog() == true) { //Backup old layout before the transform Transform oldTransform = xamDock1.LayoutTransform;
//get selected printer capabilities PrintCapabilities capabilities = dialog.PrintQueue.GetPrintCapabilities(dialog.PrintTicket);
//get width scale double scale = (capabilities.PageImageableArea.ExtentWidth / xamDock1.ActualWidth);
//get height scale double scale2 = (capabilities.PageImageableArea.ExtentHeight / xamDock1.ActualHeight);
//Transform the Visual to xamdock scale. xamDock1.LayoutTransform = new ScaleTransform(scale, scale2);
//Backup old size before the transform Size oldSize = new Size(xamDock1.ActualWidth, xamDock1.ActualHeight);
//get the size of the printer page Size sz = new Size(capabilities.PageImageableArea.ExtentWidth, capabilities.PageImageableArea.ExtentHeight);
//update the layout of the visual to the printer page size. xamDock1.Measure(sz); xamDock1.Arrange(new Rect(new Point(capabilities.PageImageableArea.OriginWidth, capabilities.PageImageableArea.OriginHeight), sz)); //now print the visual to printer to fit on the one page. dialog.PrintVisual(xamDock1, "Printing");
//Actions to use old transform and size informations to prevent actual UI changes. xamDock1.LayoutTransform = oldTransform; xamDock1.Measure(oldSize); xamDock1.Arrange(new Rect(new Point(0, 0), oldSize));
}
Hello,
Thank you for your post. I have been looking into it and I can suggest you export the chart to an image first, following the approach described here:
http://ko.infragistics.com/community/blogs/petar_monov/archive/2012/03/14/controls-to-images.aspx
and then print the created image. Please let me know if this helps you or you need further assistance on this matter.
Looking forward for your reply.
Thanks Stefan for your reply
I can print the created image as the link describes but I do no want users to do extra work(create an image) to print graph.
So is there a bug with the printing before creating an image?
I am just checking if you got this worked out or you still require any assistance or clarification on the matter.
I cannot be completely sure how do you print your chart, so could you please send an isolated sample project, where the issue is reproduced, so I can investigate it further for you.