ReoGrid Forum

sirmfletcher

Member

Registered: 2016-12-10

Posts: 8

Printing from WPF? Any ideas on calling the form version ?

Anyone, able to get a print preview working in wpf using the winform calls, as there are not any calls coded for the WPF version....

using System.Windows.Xps;
using System.Windows.Xps.Packaging;

using unvell.ReoGrid.Print;

namespace unvell.ReoGrid.Print
{
	partial class PrintSession
	{
		internal void Init() { }

		public void Dispose() { }

		/// <summary>
		/// Start output document to printer.
		/// </summary>
		public void Print()
		{
			throw new NotImplementedException("WPF Print is not implemented yet. Try use Windows Form version to print document as XPS file.");
		}

	    
	}
}

namespace unvell.ReoGrid
{
	partial class Worksheet
	{
	}
}

#endif // WPF

#endif // PRINT

Using the below code in the codebehind of a wpf window gives a simple screenshot of the gridcontrol , but isn't really useful for true printing...

        private string _previewWindowXaml =
    @"<Window
        xmlns ='http://schemas.microsoft.com/netfx/2007/xaml/presentation'
        xmlns:x ='http://schemas.microsoft.com/winfx/2006/xaml'
        Title ='Print Preview - @@TITLE'
        Height ='500' Width ='700'
        WindowStartupLocation ='CenterOwner'>
                      <DocumentViewer Name='dv1'/>
     </Window>";

        internal void DoPreview(string title)
        {
            string fileName =
                "C:\\Users\\sirmf\\Documents\\Visual Studio 2015\\Projects\\ReoGridBetterTextTest\\printPreview.xps";
          //  FlowDocumentScrollViewer visual = (FlowDocumentScrollViewer)(this.FindName("grid"));

            try
            {

                // write the XPS document
                using (XpsDocument doc = new XpsDocument(fileName, FileAccess.ReadWrite))
                {
                    XpsDocumentWriter writer = XpsDocument.CreateXpsDocumentWriter(doc);
                    writer.Write(grid);
                }

                // Read the XPS document into a dynamically generated
                // preview Window 
                using (XpsDocument doc = new XpsDocument(fileName, FileAccess.Read))
                {
                    FixedDocumentSequence fds = doc.GetFixedDocumentSequence();

                    string s = _previewWindowXaml;
                    s = s.Replace("@@TITLE", title.Replace("'", "&apos;"));

                    using (var reader = new System.Xml.XmlTextReader(new StringReader(s)))
                    {
                        Window preview = System.Windows.Markup.XamlReader.Load(reader) as Window;

                        DocumentViewer dv1 = LogicalTreeHelper.FindLogicalNode(preview, "dv1") as DocumentViewer;
                        dv1.Document = fds as IDocumentPaginatorSource;


                        preview.ShowDialog();
                    }
                }
            }
            finally
            {
                if (File.Exists(fileName))
                {
                    try
                    {
                        File.Delete(fileName);
                    }
                    catch
                    {
                    }
                }
            }

        } // end of DoPreview()

Jingwood

Moderator

From: jing at reogrid.net

Registered: 2014-06-03

Posts: 615

Re: Printing from WPF? Any ideas on calling the form version ?

Nice workaround!