DataGridView根据某一列值改变行颜色，需要同时用到事件：CurrentCellDirtyStateChanged 和 CellValueChanged

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        private void dgv1_CellValueChanged(object sender, DataGridViewCellEventArgs e)
        {
            if (e.RowIndex >= dgv1.Rows.Count - 1 || e.RowIndex < 0) return;
            DataGridViewColumn col = this.dgv1.Columns["C_check"];
            var row = dgv1.Rows[e.RowIndex];
            if (Convert.ToBoolean(row.Cells[col.Index].Value) == true)
            {
                row.DefaultCellStyle.BackColor = Color.LemonChiffon;
            }
            else
            {
                row.DefaultCellStyle.BackColor = Color.White;
            }
        }

        private void dgv1_CurrentCellDirtyStateChanged(object sender, EventArgs e)
        {
            if (dgv1.IsCurrentCellDirty)
            {
                dgv1.CommitEdit(DataGridViewDataErrorContexts.Commit);
            }
        }
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 参考：C# DataGridViewCheckBoxColumn编辑时实时触发事件