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  • C# DataTable分页函数

            /// <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;
            }
    
            /// <summary>  
            /// 获取总页数  
            /// </summary>  
            /// <param name="sumCount">结果集数量</param>  
            /// <param name="pageSize">页面数量</param>  
            /// <returns></returns>  
            public static int getPageCount(int sumCount, int pageSize)
            {
                int page = sumCount / pageSize;
                if (sumCount % pageSize > 0)
                {
                    page = page + 1;
                }
                return page;
            }
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  • 原文地址:https://www.cnblogs.com/ilookbo/p/4261603.html
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