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;
}