C# 获取SQL Server所有的数据库名称

using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Data;
 using System.Data.SqlClient;
 using System.Collections;

// ...





        /// <summary>
        /// 获取数据库连接对象
        /// </summary>
        /// <param name="dbName"></param>
        /// <returns></returns>
        public SqlConnection getSqlConnection(string dbName)
        {
            SqlConnection conn = new SqlConnection();
            conn.ConnectionString = string.Format("server=127.0.0.1,9527;database={0};uid=sa;pwd=123456;Enlist=true", dbName);
            conn.Open();
            //showLog(string.Format("连接数据库成功：{0}", conn.Database));
            return conn;
        }
        
        
         /// <summary>
         /// 取所有数据库名称
         /// </summary>
         /// <returns></returns>
         public ArrayList  getAllDbName()
         {
             ArrayList dbNameList = new ArrayList();
             DataTable dbNameTable = new DataTable();
             SqlConnection conn = getSqlConnection("master");
             SqlDataAdapter adapter = new SqlDataAdapter("select name from master..sysdatabases",  conn);
             lock (adapter)
             {
                 adapter.Fill(dbNameTable);
             }
             foreach (DataRow row in dbNameTable.Rows)
             {
                 dbNameList.Add(row["name"]);
             }
             conn.Close(); 
             return dbNameList;
         }