C# List集合转换成DataTable

　　　　/// <summary>
/// 将List集合 转换成 DataTable
/// </summary>
/// <param name="entitys">sellerSearchDealList是我自己定义的一个类</param>
public static DataTable ListToTable(List<sellerSearchDealList> entitys)
{
DataTable dtresult = new DataTable();
if (entitys == null || entitys.Count < 1)
{
throw new Exception("空");
}
else
{
PropertyInfo[] propertys = entitys[0].GetType().GetProperties();
foreach (PropertyInfo pi in propertys)
{
dtresult.Columns.Add(pi.Name, pi.PropertyType);
}

for (int i = 0; i < entitys.Count; i++)
{
ArrayList tenpList = new ArrayList();
foreach (PropertyInfo pi in propertys)
{
object obj = pi.GetValue(entitys[i], null);
tenpList.Add(obj);
}
object[] array = tenpList.ToArray();
dtresult.LoadDataRow(array, true);
}
}
return dtresult;
}