private void Form1_Load(object sender, EventArgs e)
    {
        string conn = "server=xxx;database=xxxx;user=xxx;pwd=xxx";
        string sql = "select * from xxxx";
        var da = new SqlDataAdapter(sql, conn);
        var dt = new DataTable();
        da.Fill(dt);

        var report = new ReportViewer { Dock = DockStyle.Fill};
        this.Controls.Add(report);
        var rds = new ReportDataSource("DataSet1", dt); // "DataSet1"是报表中指定的数据源
        report.LocalReport.DataSources.Add(rds);
        // 指定制作好的报表(rdlc文件)的名字
        report.LocalReport.ReportEmbeddedResource = "ReportsApplication1.Report1.rdlc";
        report.RefreshReport();
    }

------解决方案--------------------

一个非常好的实例：


       C#打印DataGridView 中的数据

------解决方案--------------------

C# code
I'm using DrawString...

here's my code ... it's a bit messy right now but should do the job ;)


private void printDocument_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            int x = 0;
            int y = 100;
            int rowGap = 20;
            int colGap = 5;
            int leftMargin = 50;
 
            int linesPerPage = e.MarginBounds.Height / _dataGridView.DefaultCellStyle.Font.Height;
            Font font = new Font(_dataGridView.DefaultCellStyle.Font.FontFamily, _dataGridView.DefaultCellStyle.Font.Size);
            Font headingFont = new Font("Arial", 10, FontStyle.Bold);
            Font captionFont = new Font("Arial", 10, FontStyle.Bold);
            Brush brush = new SolidBrush(Color.Black);
            string cellValue = "";

            e.Graphics.DrawString("Erstellt von " + ObjectStore.Account.UserName + " am " + DateTime.Now.ToLongDateString(), captionFont, brush, new PointF(50, 50));
            e.Graphics.DrawString("Seite " + _pageNumber, captionFont, brush, new PointF(e.PageBounds.Width - 100, e.PageBounds.Height - 50));

            int rowCount = _dataGridView.Rows.Count;
            int colCount = _dataGridView.Columns.Count;

            y += rowGap;
            x = leftMargin;
            foreach (DataGridViewColumn column in _dataGridView.Columns)
            {
                if(column.GetType() != typeof(DataGridViewButtonColumn) && column.GetType() != typeof(DataGridViewCheckBoxColumn))
                {
                    cellValue = column.HeaderText;
                    e.Graphics.DrawString(cellValue, headingFont, brush, x, y);
                    x += column.Width + colGap;
                }
            }

            int count = 0;
            for (int i = _rowPosition; i < _dataGridView.Rows.Count; i++)
            {
                y += rowGap;
                x = leftMargin;

                foreach (DataGridViewColumn column in _dataGridView.Columns)
                {
                    if (column.GetType() != typeof(DataGridViewButtonColumn) && column.GetType() != typeof(DataGridViewCheckBoxColumn))
                    {
                        cellValue = _dataGridView.Rows//emoticons/emotion-55.gif" alt="Idea" />.Cells[column.Index].Value.ToString();
                        e.Graphics.DrawString(cellValue, captionFont, brush, x, y);
                        x += column.Width + colGap;
                        y = y + rowGap * (cellValue.Split(new char[] { '\r', '\n' }).Length - 1);
                    }
                }

                _rowPosition++;
                count++;

                if (count > linesPerPage)
                {
                    break;
                }
            }

            if (_rowPosition > linesPerPage && _rowPosition < _dataGridView.Rows.Count)
            {
                _pageNumber++;
                e.HasMorePages = true;
            }
        }