如何在silverlight中打印多個頁面

Question

如何在silverlight中打印多個頁面。 其實我在Silverlight中有一個場景，我有按鈕單擊事件，我可以打印單個頁面中的所有內容，並且所有多餘的內容已被刪除，但我沒有得到下一頁打印

這是我的按鈕單擊事件

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兩個博客文章描述更詳細的Silverlight多頁打印。