DataGridView获取当前选中的行与列的值

版权声明：本文为博主原创文章，如需引用请标注必须出处 https://blog.csdn.net/qq_37227093/article/details/84335798

版权声明：本文为博主原创文章，引用如需标注必须出处  https://blog.csdn.net/qq_37227093/article/details/84335798

       

        /// <summary>
        /// 从DataGridView的Rows中筛选指定列
        /// </summary>
        public static List<T> UAllList<T>(this DataGridView dgv, string columnName)
        {
            if (dgv.Rows.Count == 0) return null;

            return (from DataGridViewRow dgvr in dgv.Rows
                select UValueConvert.ConvertByObj<T>(dgvr.Cells[columnName].Value)).Distinct().ToList();
        }

        /// <summary>
        /// 从DataGridView的SelectedRows中筛选指定列
        /// </summary>
        public static List<T> USelectedList<T>(this DataGridView dgv, string columnName)
        {
            if (dgv.SelectedRows.Count == 0) return null;

            return (from DataGridViewRow dgvr in dgv.SelectedRows
                where !string.IsNullOrEmpty(dgvr.Cells[columnName].Value.ToString())
                select UValueConvert.ConvertByObj<T>(dgvr.Cells[columnName].Value)).Distinct().ToList();
        }

        /// <summary>
        /// 获取选中行或选中单元格中的值
        /// </summary>
        public static T USingle<T>(this DataGridView dgv, string columnName = null)
        {
            var cell = columnName == null ? dgv.SelectedCells[0] : dgv.SelectedRows[0].Cells[columnName];
            return UValueConvert.ConvertByObj<T>(cell.Value);
        }

注：     UValueConvert.ConvertByObj <T>是自己封装好的类型转换