Hello

I have used this component to represent diagrams in my windows application. Where diagram can be exported to pdf, but as I use the mindfusion export method, I get a pdf file with the diagram image at the end. I would like to add some custom text as header and footer or at least at the begining of the pdf document. Is this posible with the ofered api? is There any way of doing this??

Thanks a lot in advance

Kind regards

I have test this code, but it does not seems to work. I am using a  PdfExporter and calling  "pdfExporter.Export(FlowChart, fileName);" and this is not redrawing neither foreground or background, although I amd registering the event.

any idea???

the MindFusion.Diagramming.Export.Pdf.dll is the version 5.8.0.23716. the control is 5.8.0.23715

Something like this:

    var pdfExporter = new PdfExporter
                {
                    AutoScale = PdfExportOptions.Instance.PdfAutoScale,
                    InvisibleItems = PdfExportOptions.Instance.InvisibleItems,
                    Margins = PdfExportOptions.Instance.Margins,
                    PageOrientation = PdfExportOptions.Instance.PageOrientation,
                    PageSize = PdfExportOptions.Instance.PageSize,
                    Scale = PdfExportOptions.Instance.PdfScale,
                };

            // Remove the expandable sign from nodes
            var expandableNodes = new List<MindFusion.Diagramming.DiagramNode>();
            foreach (var node in FlowChart.Nodes.Cast<MindFusion.Diagramming.DiagramNode>().Where(node => node.Expandable))
            {
                expandableNodes.Add(node);
                node.Expandable = false;
            }

            DiagramItemCollection oldFlowChartSelection;
            SelectionBlock oldSketchMatrixSelection;
            bool oldShowSketchMatrixGridLines;

            // Store selection
            DeselectFlowChartItemsBeforeExport(out oldFlowChartSelection, out oldSketchMatrixSelection, out oldShowSketchMatrixGridLines);

            // Special case, when generating the WMF image the RTF nodes has to have
            // the IsPrinting property to true in order to right calculate the size for the
            // custom draw for that nodes
            foreach (DiagramNode node in _diagramNodes.Values)
            {
                if (node is RTFNode)
                    (node as RTFNode).IsPrinting = true;
            }

            try
            {
                // Get this old zoom and scroll values for restore after printing
                oldZoomFactorForPrint = diagramView.ZoomFactor;
                oldScrollX = diagramView.ScrollX;
                oldScrollY = diagramView.ScrollY;

                diagramView.ZoomFactor = 100;
                pdfExporter.RenderOptions.Scale = 100;

                pdfExporter.Export(FlowChart, fileName);
                if (!bUnattended)
                    Process.Start(fileName);
            }
            catch (Exception exc)
            {
                MessageBox.Show("An error occured during the export to PDF. The diagram may contain elements that are not supported by the PDF exporter.\n" + exc.Message, "Error in export to PDF", MessageBoxButtons.OK, MessageBoxIcon.Information);
                Handler.Show(exc);
            } 

I should have introduced an error because now it is working!!! thanks a lot!!! 

Kind regards !!!

If you mean drawing text in the margin area, you could in theory achieve that by inflating the target rectangle a bit:

var pageContentRect = e.ClipRect;
pageContentRect.Inflate(5, 5); 

However the control always clips content at the page margins at this time, so you won't see the headers then. We'll try to add an option to disable that clipping and implement built-in headers support for next release.

Meanwhile you could use some third-party PDF processing library to remove the clip command before header text, or even modify the PDF file directly by loading it into a string and modifying the clip parts. The PDF mark-up for the header above will look like this:

36 36 522.9999 769.9999 re W n
...
(header)  Tj 

You can remove the clip region by replacing the "re W n" commands with "re n n".

I hope that helps,
Stoyan

This version adds HeaderFormat, HeaderFont, FooterFormat, FooterFont properties to PdfExporter:
https://mindfusion.eu/_beta/fcnet613.zip

Similarly to PrintOptions.HeaderFormat, %P is placeholder for current page number:

pdfex.HeaderFormat = "page %P";
pdfex.FooterFormat = "copyright 2014";
pdfex.Export(diagram, sfd.FileName);
 

I hope that helps,
Stoyan