DataTable行转列

/// <summary>

/// DataTable行转列

/// </summary>

/// <param name="dtable">需要转换的表</param>

/// <param name="head">转换表表头对应旧表字段（小写）</param>

/// <returns></returns>

public static DataTable DataTableRowtoCon(DataTable dtable, string head)

{

DataTable dt = new DataTable();

dt.Columns.Add("NumberID");

for (int i = 0; i < dtable.Rows.Count; i++)

{//设置表头

dt.Columns.Add(dtable.Rows[i][head].ToString());

}

for (int k = 0; k < dtable.Columns.Count; k++)

{

string temcol = dtable.Columns[k].ToString();

if (dtable.Columns[k].ToString().ToLower() != head)//过滤掉设置表头的列

{

DataRow new_dr = dt.NewRow();

new_dr[0] = dtable.Columns[k].ToString();

for (int j = 0; j < dtable.Rows.Count; j++)

{

string temp = dtable.Rows[j][k].ToString();

new_dr[j + 1] = (Object)temp;

}

dt.Rows.Add(new_dr);

}

}

return dt;

}