对DataTable进行分页

在某些情况下可能需要必须对datatable进行分页,今天花了点时间写了一个,比较简单,如下:

 

        /**//// <summary>
        /// 对DataTable进行分页,起始页为1
        /// </summary>
        /// <param name="dt"></param>
        /// <param name="PageIndex"></param>
        /// <param name="PageSize"></param>
        /// <returns></returns>
        public static DataTable GetPagedTable(DataTable dt, int PageIndex, int PageSize)
        ...{
            if (PageIndex == 0)
                return dt;
            DataTable newdt = dt.Copy();
            newdt.Clear();

            int rowbegin = (PageIndex - 1) * PageSize;
            int rowend = PageIndex * PageSize;

            if (rowbegin >= dt.Rows.Count)
                return newdt;

            if (rowend > dt.Rows.Count)
                rowend = dt.Rows.Count;
            for (int i = rowbegin; i <= rowend - 1; i++)
            ...{
                DataRow newdr = newdt.NewRow();
                DataRow dr = dt.Rows[i];
                foreach (DataColumn column in dt.Columns)
                ...{
                    newdr[column.ColumnName] = dr[column.ColumnName];
                }
                newdt.Rows.Add(newdr);
            }

            return newdt;
        }