Question

如何在silverlight中打印多个页面。实际上我有一个Silverlight的场景，我有按钮点击事件，我可以打印单页中的所有内容，所有多余的内容已被删除但我没有得到下一页打印

这是我的按钮点击事件

private void btnSubmitPrint_Click(object sender, RoutedEventArgs e)
            {
                _currentIndex = 0;

                 PrintDocument docprin = new PrintDocument();

                 docprin.PrintPage += new EventHandler<PrintPageEventArgs>(docprin_PrintPage);

                  string DocumentName = "Balaji";

                    docprin.Print(DocumentName);

             }

    //I Combine all the List into to a single string by using Linq

             void docprin_PrintPage(object sender, PrintPageEventArgs e)
            {
                string delimeter = "\n";

                    var checkval = ListOfPageComments.Select(i => i.Comment.Insert(100, Environment.NewLine));//This lINQ OPERATION
               var ListofPagecommentsAscending = from n in ListOfPageComments orderby n.Date descending select n;

     var CommentsLineBreaks = ListofPagecommentsAscending.Select(conmmentss =>
                   {
                       var retur = conmmentss;
                       if (conmmentss.Comment.Length > 100)
                       {
                           IEnumerable<string> spllitingvaluetoNewLine = (Enumerable.Range(0, conmmentss.Comment.Length / 100).Select(j => conmmentss.Comment.Substring(j * 100, 100)));
                           string RejoiningLinestoSingle = String.Join(" \n ", spllitingvaluetoNewLine);
                           conmmentss.Comment = RejoiningLinestoSingle;
                           return conmmentss;
                       }
                       return conmmentss;
                   });

               var delimitedcomments = CommentsLineBreaks.Select(i => i.Date + "\n" + i.Comment).Aggregate((i, j) => i + delimeter + j);

                string Printcomments = String.Join(delimeter, delimitedcomments);


              List<string> get = (Enumerable.Range(0, Printcomments.Length / 800).Select(j => Printcomments.Substring(j * 800, 800))).ToList();


//AFTER GETTING THE VALUE OF STRING I SPLIT THEM INTO A LIST 
                while (_currentIndex < get.Count())//lOOPING CONDITION TO PRINT MULTIPLE PAGES
                {
                    var pageRoot = new Canvas();
                    e.PageVisual = pageRoot;

                    _currentTop = PAGEMARGIN;
                    _availableSpace = e.PrintableArea.Height - PAGEMARGIN * 2;


                  //  var txt = new TextBlock { Text = Printcomments };

                    var txt = new TextBlock { Text = get[_currentIndex].ToString() };


                    if (ROWHEIGHT > _availableSpace)
                    {

                        e.HasMorePages = true;
                        break;


                    }


                    txt.SetValue(Canvas.TopProperty, _currentTop);
                    txt.SetValue(Canvas.LeftProperty, PAGEMARGIN);


                    _currentTop += ROWHEIGHT;
                    _availableSpace -= ROWHEIGHT;
                    pageRoot.Children.Add(txt);
                    _currentIndex++;

                }

           }

Answer 1

Here和here是两篇博文，详细介绍了Silverlight的多页打印。

如何在silverlight中打印多个页面

1 个答案: