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作者 Re:[問題]即時多層下拉選單 [Re:minichitina]
catte





發文: 34
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於 2011-06-27 14:44 user profilesend a private message to userreply to postreply to postsearch all posts byselect and copy to clipboard. 
ie only, sorry for netscape users:-)add this post to my favorite list
minichitina wrote:
各位高手:
您們寫得我照著寫也不知道那裡出問題,還是出不來,以下是我改過的程式,我是要在jsp網頁裏從資料庫取出資料,在html中有兩個下拉式選單,其第二個選單需跟著第一個選單變動而變動,即select id from a where id >= 第一個下拉式選單之值
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<%
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
Connection Conn = DriverManager.getConnection("jdbc:microsoft:sqlserver://140.115.84.223:1433;databasename=project","project","coolmeeting");
 
int i=0;
Statement stmt = Conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
Statement stmt2 = Conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
String SQL = "Select id From a";
ResultSet rs = stmt.executeQuery(SQL);
%>
 
<SCRIPT LANGUAGE="javascript">
<!--
function ChangeSelect(city, region)
{
val = city.options[city.options.selectedIndex].value;
 
  <%while(rs.next()){  
  
  String SQL2 = " select id from a where id >=" +  rs.getString("id") ;  
  ResultSet rs2 = stmt2.executeQuery(SQL2);
  
  %>
  if (val == '<%=rs.getString("id")%>')
  {
    
    <%while(rs2.next()){
    i++;
    }%>
    region.length = <%=i%>; 
    <%
    i=0;
    rs2.first();
    do{%>
    region.options[<%=i%>].value = '<%=rs2.getString("id")%>'; region.options[<%=i%>].text = '<%=rs2.getString("id")%>';
    <%
    i++;
    }while(rs2.next());
    i=0;%>
  }
  <%}
  rs.first();%>
}
-->
</script>
 
<form name="selection">
<select name=city onChange="ChangeSelect(document.selection.city,document.selection.region)" size="1">
                   <option>==請選擇城市==</option>
                   <%do{%>
                   <option value="<%=rs.getString("id")%>"><%=rs.getString("id")%></option>
                   <%}while(rs.next());%>
                   </select><BR>                    
                 選擇您要的區域</font><br>
                   <SELECT name=region>
 
                   </SELECT> </p> 
</form>



我想問一下大大這個city和region分別是代表什麼??資料表嗎??


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人氣 標題 作者 字數 發文時間
81005 [精華] [問題]即時多層下拉選單 ㄚ孝 384 2003-06-07 09:05
78193 Re:[問題]即時多層下拉選單 browser 1054 2003-06-07 18:19
75129 Re:[問題]即時多層下拉選單 x3711699 138 2004-04-08 20:41
74941 Re:[問題]即時多層下拉選單 alanting 710 2004-04-11 01:41
78170 Re:[問題]即時多層下拉選單 AdaHsu 3345 2004-04-19 12:23
76045 Re:[問題]即時多層下拉選單 tsechun 95 2004-04-21 02:01
73204 Re:[問題]即時多層下拉選單 andowson 474 2004-08-01 11:07
72934 Re:[問題]即時多層下拉選單 yingssu 663 2004-08-01 19:48
72008 Re:[問題]即時多層下拉選單 ting626 38 2004-08-25 16:57
72073 Re:[問題]即時多層下拉選單 i22616899 2298 2004-09-04 17:55
71263 Re:[問題]即時多層下拉選單 GuanChih 175 2004-09-05 18:51
71998 Re:[問題]即時多層下拉選單 jonz 873 2004-09-12 10:27
65249 Re:[問題]即時多層下拉選單 pulse 1193 2005-04-18 23:22
69055 Re:[問題]即時多層下拉選單 joshua 1019 2004-11-17 16:02
69377 Re:[問題]即時多層下拉選單 joshua 2357 2004-11-17 17:27
75637 Re:[問題]即時多層下拉選單 ㄚ孝 61 2003-06-09 08:34
75861 Re:[問題]即時多層下拉選單 browser 135 2003-06-09 09:23
68086 Re:[問題]即時多層下拉選單 Madagascar 141 2004-12-04 02:06
67900 Re:[問題]即時多層下拉選單 yannru 360 2004-12-07 16:19
67764 Re:[問題]即時多層下拉選單 Madagascar 465 2004-12-07 21:20
67756 Re:[問題]即時多層下拉選單 small3 388 2004-12-13 09:52
68138 Re:[問題]即時多層下拉選單 EPHT 3599 2004-12-18 09:45
55521 Re:[問題]即時多層下拉選單 yulie 2015 2006-06-06 12:47
55239 Re:[問題]即時多層下拉選單 yulie 102 2006-06-06 13:21
55514 Re:[問題]即時多層下拉選單 estrelas 1620 2006-06-06 18:51
46306 Re:[問題]即時多層下拉選單 minichitina 1875 2007-05-05 16:25
46198 Re:[問題]即時多層下拉選單 eidson72 4781 2007-05-16 11:48
21094 Re:[問題]即時多層下拉選單 catte 1960 2011-06-27 14:44
20987 Re:[問題]即時多層下拉選單 bernardvai 54 2011-06-27 16:56
45779 Re:[問題]即時多層下拉選單 alvin0224 309 2007-05-16 14:54
45856 Re:[問題]即時多層下拉選單 eidson72 21 2007-05-16 15:41
75452 Re:[問題]即時多層下拉選單 ㄚ孝 75 2003-06-09 14:05
75415 Re:[問題]即時多層下拉選單 jackyliu 201 2003-06-22 02:06
45308 Re:[問題]即時多層下拉選單 minichitina 188 2007-05-31 08:33
45169 Re:[問題]即時多層下拉選單 minichitina 2335 2007-06-04 08:04
45638 Re:[問題]即時多層下拉選單 minichitina 2718 2007-06-07 08:00
21093 Re:[問題]即時多層下拉選單 catte 2014 2011-06-28 03:14
20950 Re:[問題]即時多層下拉選單 bernardvai 1202 2011-06-28 09:54
21060 Re:[問題]即時多層下拉選單 catte 2970 2011-06-28 11:36
20925 Re:[問題]即時多層下拉選單 bernardvai 545 2011-06-28 14:21
21012 Re:[問題]即時多層下拉選單 catte 146 2011-06-28 17:54
20939 Re:[問題]即時多層下拉選單 bernardvai 2904 2011-06-29 09:58
20890 Re:[問題]即時多層下拉選單 catte 43 2011-06-29 21:58
20777 Re:[問題]即時多層下拉選單 bernardvai 219 2011-06-30 14:40
20588 Re:[問題]即時多層下拉選單 catte 269 2011-07-13 10:41
20667 Re:[問題]即時多層下拉選單 bernardvai 660 2011-07-13 11:34
20085 Re:[問題]即時多層下拉選單 catte 4035 2011-08-15 09:35
20308 Re:[問題]即時多層下拉選單 jk47 288 2011-08-15 11:19
75389 Re:[問題]即時多層下拉選單 mousetail 89 2003-06-22 13:06
77022 Re:[問題]即時多層下拉選單 alanting 1777 2003-06-22 23:21
75551 Re:[問題]即時多層下拉選單 alanting 87 2003-06-22 23:24
21212 Re:[問題]即時多層下拉選單 catte 54 2011-06-27 04:33
74968 Re:[問題]即時多層下拉選單 evenlin 132 2003-08-02 00:55
77113 Re:[問題]即時多層下拉選單 anthonycs 301 2003-08-02 15:43
74606 Re:[問題]即時多層下拉選單 ajax0953 232 2004-03-31 15:05
74352 Re:[問題]即時多層下拉選單 shyan68 261 2004-04-07 18:11
72796 Re:[問題]即時多層下拉選單 yafeng 122 2004-07-29 10:53
68236 Re:[問題]即時多層下拉選單 javaer 216 2004-12-20 00:40
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