foreach (GridViewRow row in grid.Rows)
{
    foreach (TableCell cell in row.Cells)
    {
        string cellValue = cell.Text.ToString();
    }
}

如果有帮助，请 投票 和 接受答案 .

Please vote and Accept Answer if it Helped.

int PID = 0;
private void dgrid_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (dgrid.Rows.Count >= 0)
{
    if (e.RowIndex >= 0)
    {
PID = Convert.ToInt32(dgrid.Rows[e.RowIndex].Cells["PID"].Value.ToString());
    }
}
}

这样，您可以获取单元格值..

如果您要将单元格值更新为数据库
使用CellValueChanged事件.

this way u can fetch the cell values..

if u want to update cell value to Database
use CellValueChanged Event..