将文本在单元格中垂直显示

将文本在DataGridView的单元格中竖直显示，需要在CellPainting事件中设置StringFormatFlag.DirectionVertical

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            DataTable dt = new DataTable();

            dt.Columns.Add("c1");

            dt.Columns.Add("c2");

            for (int j = 0; j < 10; j++)
            {

                dt.Rows.Add("aaaaaaaaa", "bbbb");

            }

            this.dataGridView1.DataSource = dt;



            this.dataGridView1.CellPainting += new

                 DataGridViewCellPaintingEventHandler(dataGridView1_CellPainting); ;


        }

        private void dataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
        {
            if (e.ColumnIndex == 1 && e.RowIndex > -1 && e.Value != null)
            {

                e.Paint(e.CellBounds, DataGridViewPaintParts.All

                     & ~DataGridViewPaintParts.ContentForeground);

                StringFormat sf = new StringFormat();

                sf.Alignment = StringAlignment.Center;

                sf.LineAlignment = StringAlignment.Center;

                sf.FormatFlags = StringFormatFlags.DirectionVertical;

                e.Graphics.DrawString(e.Value.ToString(), e.CellStyle.Font,

                    new SolidBrush(e.CellStyle.ForeColor), e.CellBounds, sf);

                e.Handled = true;

            }


        }







    }
}