// 对第1列相同单元格进行合并
if ((e.ColumnIndex == 0 || e.ColumnIndex == 1 || e.ColumnIndex == 2
|| e.ColumnIndex == 3 || e.ColumnIndex == 4
) && e.RowIndex != -1)
{
using
(
Brush gridBrush = new SolidBrush(this.dataGridView1.GridColor),
backColorBrush = new SolidBrush(e.CellStyle.BackColor)
)
{
using (Pen gridLinePen = new Pen(gridBrush))
{
// 清除单元格
e.Graphics.FillRectangle(backColorBrush, e.CellBounds);
// 画 Grid 边线(仅画单元格的底边线和右边线)
// 如果下一行和当前行的数据不同,则在当前的单元格画一条底边线
if (e.RowIndex < dataGridView1.Rows.Count - 1)
{
string dgvValue = dataGridView1.Rows[e.RowIndex + 1].Cells[0].Value == null ? string.Empty :
dataGridView1.Rows[e.RowIndex + 1].Cells[0].Value.ToString();
string eValue = dataGridView1.Rows[e.RowIndex].Cells[0].Value == null ? string.Empty :
dataGridView1.Rows[e.RowIndex].Cells[0].Value.ToString();
if (dgvValue != eValue)
{
e.Graphics.DrawLine(gridLinePen, e.CellBounds.Left,
e.CellBounds.Bottom - 1, e.CellBounds.Right - 1,
e.CellBounds.Bottom - 1);
}
}
// 画右边线
e.Graphics.DrawLine(gridLinePen, e.CellBounds.Right - 1,
e.CellBounds.Top, e.CellBounds.Right - 1,
e.CellBounds.Bottom);
// 画(填写)单元格内容,相同的内容的单元格只填写第一个
if (e.RowIndex > 0 &&
dataGridView1.Rows[e.RowIndex - 1].Cells[0].Value.ToString() ==
dataGridView1.Rows[e.RowIndex].Cells[0].Value.ToString())
{ }
else
{
e.Graphics.DrawString((String)e.Value, e.CellStyle.Font,
Brushes.Black, e.CellBounds.X + 2,
e.CellBounds.Y + 5, StringFormat.GenericDefault);
}
e.Handled = true;
}
}
}
C# dataGridView1 合并单元格
最新推荐文章于 2025-02-24 13:18:17 发布