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如何在 Silverlight 中打印多页。实际上我在silverlight中有一个场景，我有按钮单击事件，我可以在其中打印单个页面中的所有内容并且所有多余的内容都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++;

                }

           }
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1 回答 1

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这里和这里有两篇博文，更详细地描述了 Silverlight 的多页打印。

于 2012-06-29T09:00:14.340 回答