C#实现把dgv里的数据完整的复制到一张内存表的方法

/// <summary>
/// 方法实现把dgv里的数据完整的复制到一张内存表
/// </summary>
/// <param name="dgv">dgv控件作为参数 </param>
/// <returns>返回临时内存表 </returns>
public static datatable getdgvtotable(datagridview dgv)
{
datatable dt = new datatable();
for (int count = 0; count < dgv.columns.count; count++)
{
datacolumn dc = new datacolumn(dgv.columns[count].name.tostring());
dt.columns.add(dc);
}
for (int count = 0; count < dgv.rows.count; count++)
{
datarow dr = dt.newrow();
for (int countsub = 0; countsub < dgv.columns.count; countsub++)
{
dr[countsub] = dgv.rows[count].cells[countsub].value.tostring();
}
dt.rows.add(dr);
}
return dt;
}