Export C1FlexGrid to PDF

C1Flexgrid for WPF provides lot of flexibility in terms of exporting the data to various formats. PDF Export technique depends on the following two important things :

1. GetPageImages method of C1Flexgrid

2. Page Template

GetPageImages method returns a list of images that represent a paged view of the grid. These images can then be added to a collection and rendered to the PDF page. Page Template defines the layout of the Page to be rendered in the exported PDF. Following Code snippet defines the PDF Export:

// export the grid to a PDF file  
 void SavePdf(Stream s, string documentName)  
 {  
     // get root element to lay out the PDF pages  
     Panel root = null;  
    for (var parent = c1Flexgrid1.Parent as FrameworkElement; parent != null; parent = parent.Parent as FrameworkElement)  
     {  
         if (parent is Panel)  
         {  
             root = parent as Panel;  
         }  
     }  
     // create pdf document  
     var pdf = new C1PdfDocument(PaperKind.Letter, false);  
     // get page size  
     var rc = pdf.PageRectangle;  
     var m = new Thickness(96, 96, 96 / 2, 96 / 2);  
     var scaleMode = ScaleMode.ActualSize;  
     // create panel to hold elements while they render  
     var pageTemplate = new PageTemplate();  
     pageTemplate.Width = rc.Width;  
     pageTemplate.Height = rc.Height;  
     pageTemplate.SetPageMargin(m);  
     root.Children.Add(pageTemplate);  
     // render grid into PDF document  
     var sz = new Size(rc.Width - m.Left - m.Right, rc.Height - m.Top - m.Bottom);  
     var pages = c1Flexgrid1.GetPageImages(scaleMode, sz, 100);  
     for (int i = 0; i < pages.Count; i++)  
     {  
         // skip a page when necessary  
         if (i > 0)  
         {  
             pdf.NewPage();  
         }  
         // set content  
         pageTemplate.PageContent.Child = pages[i];  
         //pageTemplate.PageContent.Stretch = System.Windows.Media.Stretch.Uniform;  
         pageTemplate.PageContent.HorizontalAlignment = System.Windows.HorizontalAlignment.Stretch;  
         // set header/footer text  
         //pageTemplate.HeaderLeft.Text = documentName;  
         pageTemplate.FooterRight.Text = string.Format("Page {0} of {1}",  
         i + 1, pages.Count);  
         // measure page element  
         pageTemplate.Measure(new Size(rc.Width, rc.Height));  
         pageTemplate.UpdateLayout();  
         // add page element to PDF  
         pdf.DrawElement(pageTemplate, rc);  
     }  
     // done with template  
     root.Children.Remove(pageTemplate);  
     // save the PDF document  
     pdf.Save(s);  
     s.Close();  
 }