DGV表头双行

try
{
if (e.RowIndex < 0)
{
RectangleF _rect = e.CellBounds;
Pen _pen = new Pen(Color.Black);
Pen _pen1 = new Pen(Color.Gray);
LinearGradientBrush backBrush = new LinearGradientBrush(_rect, e.CellStyle.BackColor, e.CellStyle.BackColor, 90);
int _col = e.ColumnIndex;
switch (_col)
{
case 0:
e.Graphics.FillRectangle(backBrush, _rect);
e.Graphics.DrawLine(_pen, _rect.Right - 1, _rect.Top, _rect.Right - 1, _rect.Bottom);
e.Graphics.DrawLine(_pen, _rect.Left, _rect.Top, _rect.Left, _rect.Bottom);
break;
//case 1:
//case 2:
//case 10:
//case 11:
//case 12:
//case 13:
case 14:
e.Graphics.FillRectangle(backBrush, _rect);
e.Graphics.DrawLine(_pen, _rect.Right - 1, _rect.Top, _rect.Right - 1, _rect.Bottom);
break;
case 1:
//e.Graphics.FillRectangle(backBrush, _rect);
break;
case 2:
case 4:
case 6:
case 8:
case 10:
case 12:
e.Graphics.FillRectangle(backBrush, new Rectangle(Convert.ToInt32(_rect.X), Convert.ToInt32(_rect.Y), 200, Convert.ToInt32(_rect.Height)));
//画左竖线
e.Graphics.DrawLine(_pen1, _rect.Left - 1, _rect.Top, _rect.Left - 1, _rect.Bottom - 1);
//画中横线
e.Graphics.DrawLine(_pen1, _rect.Left, _rect.Top + (_rect.Height / 2), _rect.Right - 1, _rect.Top + (_rect.Height / 2));
//画右竖线
e.Graphics.DrawLine(_pen1, _rect.Right - 1, _rect.Top + (_rect.Height / 2) + 1, _rect.Right - 1, _rect.Bottom);
break;
case 3:
case 5:
case 7:
case 9:
case 11:
e.Graphics.FillRectangle(backBrush, new Rectangle(Convert.ToInt32(_rect.X), Convert.ToInt32(_rect.Y), Convert.ToInt32(_rect.Width) * 2, Convert.ToInt32(_rect.Height)));
//画中横线
e.Graphics.DrawLine(_pen1, _rect.Left, _rect.Top + (_rect.Height / 2), _rect.Right - 1, _rect.Top + (_rect.Height / 2));
break;
case 13:
e.Graphics.FillRectangle(backBrush, new Rectangle(Convert.ToInt32(_rect.X), Convert.ToInt32(_rect.Y), Convert.ToInt32(_rect.Width) * 2, Convert.ToInt32(_rect.Height)));
//画中横线
e.Graphics.DrawLine(_pen1, _rect.Left, _rect.Top + (_rect.Height / 2), _rect.Right - 1, _rect.Top + (_rect.Height / 2));
//画右竖线
e.Graphics.DrawLine(_pen, _rect.Right - 1, _rect.Top + 1, _rect.Right - 1, _rect.Bottom);
break;
}
e.Graphics.DrawLine(_pen, _rect.Left, _rect.Top, _rect.Right - 1, _rect.Top);
e.Graphics.DrawLine(_pen, _rect.Left, _rect.Bottom - 1, _rect.Right, _rect.Bottom - 1);
if (e.Value != null)
{
StringFormat _Format = new StringFormat();
switch (e.CellStyle.Alignment)
{
case DataGridViewContentAlignment.BottomCenter:
_Format.LineAlignment = StringAlignment.Far;
_Format.Alignment = StringAlignment.Center;
break;
case DataGridViewContentAlignment.BottomLeft:
_Format.LineAlignment = StringAlignment.Far;
_Format.Alignment = StringAlignment.Near;
break;
case DataGridViewContentAlignment.BottomRight:
_Format.LineAlignment = StringAlignment.Far;
_Format.Alignment = StringAlignment.Far;
break;
case DataGridViewContentAlignment.MiddleCenter:
_Format.LineAlignment = StringAlignment.Center;
_Format.Alignment = StringAlignment.Center;
break;
case DataGridViewContentAlignment.MiddleLeft:
_Format.LineAlignment = StringAlignment.Center;
_Format.Alignment = StringAlignment.Near;
break;
case DataGridViewContentAlignment.MiddleRight:
_Format.LineAlignment = StringAlignment.Center;
_Format.Alignment = StringAlignment.Far;
break;
case DataGridViewContentAlignment.NotSet:
_Format.LineAlignment = StringAlignment.Center;
_Format.Alignment = StringAlignment.Near;
break;
case DataGridViewContentAlignment.TopCenter:
_Format.LineAlignment = StringAlignment.Near;
_Format.Alignment = StringAlignment.Center;
break;
case DataGridViewContentAlignment.TopLeft:
_Format.LineAlignment = StringAlignment.Near;
_Format.Alignment = StringAlignment.Near;
break;
case DataGridViewContentAlignment.TopRight:
_Format.LineAlignment = StringAlignment.Near;
_Format.Alignment = StringAlignment.Far;
break;
}
Brush _br;
String _text = e.Value.ToString();
switch (_col)
{
case 2:
case 4:
case 6:
case 8:
case 10:
case 12:
_br = new SolidBrush(e.CellStyle.ForeColor);
e.Graphics.DrawString(_text, e.CellStyle.Font, _br, new RectangleF(_rect.X, _rect.Y + 1 + _rect.Height / 2, _rect.Width, _rect.Height / 2), _Format);

_Format.LineAlignment = StringAlignment.Center;
_Format.Alignment = StringAlignment.Center;
_br = new SolidBrush(e.CellStyle.ForeColor);
e.Graphics.DrawString(_text, e.CellStyle.Font, _br, new RectangleF(_rect.X, _rect.Y, _rect.Width * 3, _rect.Height / 2), _Format);
break;
case 3:
case 5:
case 7:
case 9:
case 11:
case 13:
_br = new SolidBrush(e.CellStyle.ForeColor);
e.Graphics.DrawString(_text, e.CellStyle.Font, _br, new RectangleF(_rect.X, _rect.Y + 1 + _rect.Height / 2, _rect.Width, _rect.Height / 2), _Format);
//写上面
if (_col == 3)
{
_text = "第一个";
}
if (_col == 5)
{
_text = "第二个";
}
else if (_col == 7)
{
_text = "第三个";
}
else if (_col == 9)
{
_text = "第四个";
}
else if (_col == 11)
{
_text = "第五个";
}
else if (_col == 13)
{
_text = "第六个";
}
_Format.LineAlignment = StringAlignment.Center;
_Format.Alignment = StringAlignment.Center;
_br = new SolidBrush(e.CellStyle.ForeColor);
e.Graphics.DrawString(_text, e.CellStyle.Font, _br, new RectangleF(_rect.X - _rect.Width - 20, _rect.Y, _rect.Width * 3, _rect.Height / 2), _Format);
break;
default:
_br = new SolidBrush(e.CellStyle.ForeColor);
e.Graphics.DrawString(_text, e.CellStyle.Font, _br, _rect, _Format);
break;
}
}
e.Handled = true;
}
}
catch (Exception ex)
{

LogHelper.WriteLog(GetType(),ex);
}