///
/// 修改数据表DataTable某一列的类型和记录值(正确步骤:1.克隆表结构,2.修改列类型,3.修改记录值,4.返回希望的结果)
///
/// 数据表DataTable
///
private DataTable UpdateDataTable(DataTable argDataTable)
{
DataTable dtResult = new DataTable();
//克隆表结构
dtResult = argDataTable.Clone();
foreach (DataColumn col in dtResult.Columns)
{
if (col.ColumnName == "age")
{
//修改列类型
col.DataType = typeof(String);
}
}
foreach (DataRow row in argDataTable.Rows)
{
DataRow rowNew = dtResult.NewRow();
rowNew["MemberId"] = row["MemberId"];
rowNew["NickName"] = row["NickName"];
//修改记录值
rowNew["age"] = row["age"] + "岁";
dtResult.Rows.Add(rowNew);
}
//返回希望的结果
return dtResult;
}
类似 你看看
datatable.Rows[rowindex][columnindex]=你的值;