C#中打印换行问题

Question

        int CurrentLine = 0;
        int TotalLinesPerPage = 0;
        int TotalWidth = 0;
        private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            string str = "";
            Brush b = Brushes.Black;
            Font f = fontDialog1.Font;
            TotalWidth = (int)(e.MarginBounds.Width / e.Graphics.MeasureString("sf[CurrentLine]", f).Width);
            TotalLinesPerPage = (int)(e.MarginBounds.Height / f.Height);
            int y=TotalWidth;
            for (int i = 0; i < TotalLinesPerPage && CurrentLine < sf.Length ; i++, CurrentLine++)
            {
                for (int x = 0; x < TotalWidth; x++)
                {
                    if ((int)e.Graphics.MeasureString("sf[CurrentLine]", f).Width > e.MarginBounds.Width)
                    {
                        if (x < TotalWidth)
                        {
                            str += sf[CurrentLine].Substring(TotalWidth * x, TotalWidth) + Environment.NewLine;
                            CurrentLine++;
                            e.Graphics.DrawString(str, f, b, e.MarginBounds.X, e.MarginBounds.Y + i * f.Height);
                        }
                        else
                        {
                            str += sf[CurrentLine].Substring(TotalWidth * x);
                            e.Graphics.DrawString(str, f, b, e.MarginBounds.X, e.MarginBounds.Y + i * f.Height);
                            CurrentLine++;
                        }
                    }
                    
                    
                }
                        
                    
            }            if (CurrentLine == sf.Length)
                e.HasMorePages = false;
            else
                e.HasMorePages = true;
        }
求问一下大神们 我想这么写的 先判断第一个循环先判断当前页是否够容纳当前的文本内容
第二层循环判断当前行是否超过了marginbounds的宽度如超过换行
我这么写打印出来的是空白页...不是很懂求指教

Answer 1

根本就不用判断，用Rangle来设容器自动换行就可以了。

Answer 2

Rectangle drawRect = new Rectangle(x, y, width, height);设定这个就行了e.Graphics.DrawString(str, font, mypen.Brush, drawRect, StringFomat);