C#获取局域网中可用SQL Server服务器

SqlDataSourceEnumerator instance = SqlDataSourceEnumerator.Instance;
DataTable td = instance.GetDataSources();
string list = "";
foreach (DataRow dr in td.Rows)
{
list += dr["ServerName"].ToString() + "<br/>";
list += dr["InstanceName"].ToString() + "<br/>";
list += dr["IsClustered"].ToString() + "<br/>";
list += dr["Version"].ToString() + "<br/>";
}

Response.Write(list);