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//绘制单元格
private void dataGridView1_CellPainting(object sender, System.Windows.Forms.DataGridViewCellPaintingEventArgs e)
{
try
{
////纵向合并
//if (this.dataGridView1.Columns["description"].Index == e.ColumnIndex && e.RowIndex >= 0)
//{
// using (
// Brush gridBrush = new SolidBrush(this.dataGridView1.GridColor),
// backColorBrush = new SolidBrush(e.CellStyle.BackColor))
// {
// using (Pen gridLinePen = new Pen(gridBrush))
// {
// // 擦除原单元格背景
// e.Graphics.FillRectangle(backColorBrush, e.CellBounds);
// /**/////绘制线条,这些线条是单元格相互间隔的区分线条,
// ////因为我们只对列name做处理,所以datagridview自己会处理左侧和上边缘的线条
// if (e.RowIndex != this.dataGridView1.RowCount - 1)
// {
// if (e.Value.ToString() != this.dataGridView1.Rows[e.RowIndex + 1].Cells[e.ColumnIndex].Value.ToString())
// {
// e.Graphics.DrawLine(gridLinePen, e.CellBounds.Left, e.CellBounds.Bottom - 1,
// e.CellBounds.Right - 1, e.CellBounds.Bottom - 1);//下边缘的线
// //绘制值
// if (e.Value != null)
// {
// e.Graphics.DrawString((String)e.Value, e.CellStyle.Font,
// Brushes.Crimson, e.CellBounds.X + 2,
// e.CellBounds.Y + 2, StringFormat.GenericDefault);
// }
// }
// }
// else
// {
// e.Graphics.DrawLine(gridLinePen, e.CellBounds.Left, e.CellBounds.Bottom - 1,
// e.CellBounds.Right - 1, e.CellBounds.Bottom - 1);//下边缘的线
// //绘制值
// if (e.Value != null)
// {
// e.Graphics.DrawString((String)e.Value, e.CellStyle.Font,
// Brushes.Crimson, e.CellBounds.X + 2,
// e.CellBounds.Y + 2, StringFormat.GenericDefault);
// }
// }
// //右侧的线
// e.Graphics.DrawLine(gridLinePen, e.CellBounds.Right - 1,
// e.CellBounds.Top, e.CellBounds.Right - 1,
// e.CellBounds.Bottom - 1);
// e.Handled = true;
// }
// }
//}
//横向合并
if (e.ColumnIndex != 0 && e.RowIndex == this.dataGridView1.Rows.Count - 1)
{
using (
Brush gridBrush = new SolidBrush(this.dataGridView1.GridColor),
backColorBrush = new SolidBrush(e.CellStyle.BackColor))
{
using (Pen gridLinePen = new Pen(gridBrush))
{
// 擦除原单元格背景
e.Graphics.FillRectangle(backColorBrush, e.CellBounds);
//右侧的线
if (this.dataGridView1.Columns["StuName"].Index == e.ColumnIndex || this.dataGridView1.Columns["SubjectNo"].Index == e.ColumnIndex || this.dataGridView1.Columns["SubjectScore"].Index == e.ColumnIndex
|| this.dataGridView1.Columns["SubjectTime"].Index == e.ColumnIndex)
{
e.Graphics.DrawLine(gridLinePen, e.CellBounds.Right - 1, e.CellBounds.Top,
e.CellBounds.Right - 1, e.CellBounds.Bottom - 1);
}
//绘制值
if (e.Value != null)
{
e.Graphics.DrawString((String)e.Value, e.CellStyle.Font,
Brushes.Black, e.CellBounds.X + 2,
e.CellBounds.Y + 5, StringFormat.GenericDefault);
}
//下边缘的线
e.Graphics.DrawLine(gridLinePen, e.CellBounds.Left, e.CellBounds.Bottom - 1,
e.CellBounds.Right - 1, e.CellBounds.Bottom - 1);
e.Handled = true;
}
}
}
}
catch (Exception ex)
{
}
}