Вот как-то так:
| Код |
private void dataGridView1_CellMouseUp(object sender, DataGridViewCellMouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
dataGridView1.ClearSelection();
dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Selected = true;
}
else if (e.Button == MouseButtons.Left)
{
dataGridView1.ClearSelection();
for (int i = 0; i < dataGridView1.Rows.Count; i++)
dataGridView1.Rows[i].Cells[e.ColumnIndex].Selected = true;
for (int i = 0; i < dataGridView1.Columns.Count; i++)
dataGridView1.Rows[e.RowIndex].Cells[i].Selected = true;
}
}
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