.Net常用技巧_打印DataGridView（转）

class PrintGridViewData
    {
        public  PrintGridViewData()
        { }
        private DataGridView DGridView;
        public  PrintGridViewData(DataGridView DGView)
        {
            DGridView = DGView;
        }
        private Form dialogForm = new Form();
        private CheckedListBox CListBox = new CheckedListBox();
        private Button Bton = new Button();
        public void ControlAdd()
        {
            dialogForm.StartPosition = FormStartPosition.CenterParent;
            dialogForm.Size = new Size(300, 330);
            dialogForm.MinimizeBox = false;
            dialogForm.MaximizeBox = false;
            dialogForm.Text = "请选择打印的列";
            dialogForm.Controls.Add(CListBox);
            CListBox.Size = new Size(200, 300);
            CListBox.Location = new Point(dialogForm.Location.X, dialogForm.Location.Y);
            dialogForm.Controls.Add(Bton);
            Bton.Text = "打印";
            Bton.Size = new Size(75, 23);
            Bton.Location = new Point(dialogForm.Location.X + 210, dialogForm.Location.Y + 180);
            Bton.Click +=new EventHandler(Bton_Click);
            for (int i = 0; i < DGridView.ColumnCount; i++)
            {
                CListBox.Items.Add(DGridView.Columns[i].HeaderText);
            }
            dialogForm.Show();
        }
        private String[] ArrayStr;
        private int ArrayCount=0;
        private void Bton_Click(object sender, EventArgs e)
        {
            ArrayCount = CListBox.CheckedItems.Count;
            ArrayStr = new String[ArrayCount];
            for (int i = 0; i < CListBox.CheckedItems.Count; i++)
            {
                ArrayStr[i] = CListBox.CheckedItems[i].ToString();
            }
            
            PrintTable();           
        }
        public void PrintTable()
        {
            dialogForm.Close();
            PrintDocument PDocument = new PrintDocument();
            PDocument.DocumentName = "打印Table";
            PDocument.PrintPage +=new PrintPageEventHandler(PDocument_PrintPage);
            PrintDialog PDialog = new PrintDialog();
            PDialog.Document = PDocument;
            PrintPreviewDialog PPreviewDialog = new PrintPreviewDialog();
            PPreviewDialog.Document = PDocument;
            PPreviewDialog.ClientSize = new System.Drawing.Size(1024, 768);
            if (PDialog.ShowDialog() == DialogResult.OK)
            {
                PageSetupDialog PSetupDialog= new PageSetupDialog();
                PSetupDialog.Document = PDocument;
                PSetupDialog.Document.DefaultPageSettings.Landscape = true;//设置默认为横向打印
                if (PSetupDialog.ShowDialog() == DialogResult.OK)
                {
                    if (PPreviewDialog.ShowDialog() == DialogResult.OK)
                    {
                        PDocument.Print();
                    }
                }
            }
            
        }
        private int PrintRow = 0;
        private void PDocument_PrintPage(object sender,PrintPageEventArgs e)
        {
            Graphics Gh = e.Graphics;
            String Tablehead = "人事资料表";  //表头名称
            Font headFont = new Font("宋体", 18, FontStyle.Bold);  //表头字体
            int headHeight = headFont.Height;  //表头的占用的高度
            Font FieldFont = new Font("宋体", 14, FontStyle.Bold);  //表字段名的字体
            int FieldHeight = FieldFont.Height;   //表字段名占用的高度
            Font DateFont = new Font("宋体", 12);  //表头打印日期的字体
            int DateHeight = DateFont.Height;        //表头打印日期的字体占用的高度
            Font SubjectFont = new Font("宋体", 13);  //表主体文本的字体
            int SubjectHeight = SubjectFont.Height;  //表主体文本的字体占用的高度
            int margin = 5;   //字符串与单元格外框上下的间距
            int ColumnsWidth = e.PageBounds.Width/ArrayCount;   //列宽
            Brush B = new SolidBrush(Color.Black);
            Pen P = new Pen(Color.Black);
            int x = e.PageBounds.X;
            int y = e.PageBounds.Y;
            int width = e.PageBounds.Width;
            int height = e.PageBounds.Height-20;
            //画表头名称
            Gh.DrawString(Tablehead, headFont, B, x + width / 2 - ((int)(Gh.MeasureString(Tablehead, headFont)).Width / 2), 0);
            //画跟在表头下面的打印日期（与表头名称间隔10px)
            Gh.DrawString("打印日期：" + System.DateTime.Now.Date.ToString().Substring(0, 10), DateFont, B, x, y + headHeight + 10);
            //画表字段名上的第一条横线
            Gh.DrawLine(P, x, y + headHeight + 10 + DateHeight, x + width, y + headHeight + 10 + DateHeight);
            //画表的字段名
            int FieldIndex = 0;
            for (int i = 0; i < DGridView.ColumnCount; i++)
            {
                  //当字符串数组ArrayStr包含指定的字符串时返回true
                  bool trueORfalse = ((IList<String>)ArrayStr).Contains(DGridView.Columns[i].HeaderText);
                  if (trueORfalse)
                  {
                      Gh.DrawString(DGridView.Columns[i].HeaderText.ToString(), FieldFont, B, x + FieldIndex * ColumnsWidth, y + headHeight + 10 + DateHeight + margin);
                      FieldIndex++;
                  }
            }
            //画表字段名下的横线
            Gh.DrawLine(P, x, y + headHeight + 10 + DateHeight + margin + FieldHeight + margin, x + width, y + headHeight + 10 + DateHeight + margin + FieldHeight + margin);
            //计算表头和字段名之间占用的高度
            int headToSubjectHeight = y + headHeight + 10 + DateHeight + margin + FieldHeight + margin;
            //除去表头和字段名之间占用的高度，毎页画的最大行数
            int PageRowCount = (height - (y + headHeight + 10 + DateHeight + margin + FieldHeight + margin)) / (SubjectFont.Height + 10);
            //减去已打印的行，余下的行数
            int count = DGridView.RowCount - PrintRow;
            if (PageRowCount >= count)
            {
                int rowIndex = 0;//打印的行数
                int columnIndex = 0;//打印的列数
                while (DGridView.RowCount > PrintRow)
                {
                    for (int z = 0; z < DGridView.ColumnCount; z++)
                    {
                        try
                        {
                            DGridView[z, PrintRow].Value.ToString();
                            //当字符串数组ArrayStr包含指定的字符串时返回true
                            bool trueORfalse = ((IList<String>)ArrayStr).Contains(DGridView.Columns[z].HeaderText);
                            if (trueORfalse)
                            {
                                //打印毎个单元格，单元格的字符串与一下两条横线的间距为margin这个变量的大小
                                Gh.DrawString(DGridView[z, PrintRow].Value.ToString(), SubjectFont, B, x + columnIndex * ColumnsWidth, y + headToSubjectHeight + margin + rowIndex * (SubjectHeight + 2 * margin));
                                columnIndex++;
                            }
                            //打印完一行数据，画一条横线
                            Gh.DrawLine(P, x, y + headToSubjectHeight + (rowIndex + 1) * (SubjectHeight + 2 * margin), x + width, y + headToSubjectHeight + (rowIndex + 1) * (SubjectHeight + 2 * margin));
                        }
                        catch
                        {
                            break;
                        }
                    }
                    columnIndex = 0;
                    rowIndex++;
                    PrintRow++;
                }
                for (int k = 0; k < ArrayCount + 1; k++)//画竖的直线
                {
                    Gh.DrawLine(P, x + ColumnsWidth * k, y + headHeight + 10 + DateHeight, x + ColumnsWidth * k, y + headHeight + 10 + DateHeight + rowIndex * (SubjectHeight + 2 * margin));
                }
            }
            else  //下面的与上面的大同小异，主要区分用的循环语句
            {
                int rowIndex = 0;
                int columnIndex = 0;
                do
                {
                    for (int z = 0; z < DGridView.ColumnCount; z++)
                    {
                        try
                        {
                             //当字符串数组ArrayStr包含指定的字符串时返回true
                             bool trueORfalse = ((IList<String>)ArrayStr).Contains(DGridView.Columns[z].HeaderText);
                             if (trueORfalse)
                             {
                                 Gh.DrawString(DGridView[z, PrintRow].Value.ToString(), SubjectFont, B, x + columnIndex * ColumnsWidth, y + headToSubjectHeight + margin + rowIndex * (SubjectHeight + 2 * margin));
                                 columnIndex++;
                             }
                            Gh.DrawLine(P, x, y + headToSubjectHeight + (rowIndex + 1) * (SubjectHeight + 2 * margin), x + width, y + headToSubjectHeight + (rowIndex + 1) * (SubjectHeight + 2 * margin));
                        }
                        catch
                        {
                            break;
                        }
                    }
                    columnIndex = 0;
                    rowIndex++;
                    PrintRow++;
                } while (PrintRow % PageRowCount > 0);//当求余的结果不为0，则说明没有打满一页，继续执行。否则打满，跳出循环。

                for (int k = 0; k < ArrayCount + 1; k++)//画竖的直线
                {
                    Gh.DrawLine(P, x + ColumnsWidth * k, y + headHeight + 10 + DateHeight, x + ColumnsWidth * k, y + headHeight + 10 + DateHeight + (rowIndex+1) * (SubjectHeight + 2 * margin));
                }
            }
            if (DGridView.RowCount > PrintRow)
            {
                e.HasMorePages = true;//返回true时，则还有数据没打印出来，再执打印,打印附加页
            }
            else
            {
                e.HasMorePages = false;
                PrintRow = 0;
            }
        }
       
    }