asp.net 获取指定表中指定位置的行对象,将行数组转换为表结构

/// <summary>

/// 获取指定表中的行对象

/// </summary>

/// <param name="newsList">源数据</param>

/// <param name="start">起始位置从0开始</param>

/// <param name="end">结束位置，如果为0,则读出以下所有的</param>

/// <returns>返回指定位置的数据列表</returns>

public static DataTable SplitTable(DataTable newsList, int start, int end)

{

if (newsList != null)

{

if (start == 1 || start == 0) start = 0;

else start = start - 1;

if (start > newsList.Rows.Count) return newsList;

DataTable dt = newsList.Clone();

for (int i = start; i < newsList.Rows.Count; i++)

{

if (i == end && end != 0) break;

dt.Rows.Add(newsList.Rows[i].ItemArray);

}

return dt;

}

return new DataTable();

}

/// <summary>

/// 将行转换为表

/// </summary>

/// <param name="dt">原始表（需要复制里面的结构）</param>

/// <param name="rows"></param>

/// <returns></returns>

public static DataTable DataRowToTable(DataTable dt, DataRow[] rows)

{

if (dt == null || rows.Length <= 0) return null;

DataTable newsDt = dt.Clone();

foreach (DataRow row in rows)

{

newsDt.ImportRow(row);

}

return newsDt;

}