Here is a province and city as an example. Due to the database, first create a database dlist.mdb
Database Name: DList.mdb
Provincial Table Name: p_id (Type: Auto Number), P_Name (Type: Text, Provincial Name)
City Table Name: CITY fields are: c_id (Type: Auto Number), C_PID (Type: Text, Provincial Name, P_Name in the Province Table), c_name (Type: Text, City Name)
The source program is saved as an ASP file. -------------------------------------------------- ---------- <% DIM IDID = Request.QueryString ("ID")
IF id = "1" "" "" "" "" "" & requirements ""
") Endixse.write"
%>
JS dynamic column representation example </ title> <script language = "javascript"> <! - var ssort = new array (); var num = 0; <% DIM CONN, RS, GRS, I, J, PSTRPSTR = "" SET CONN = Server.createObject ("AdoDb.Connection" SET RS = Server.createObject ("AdoDb.Recordset") Set GRS = Server.createObject ("AdoDb.Recordset") Conn.Pen "provider = microsoft.jet.Oledb.4.0; data source =" & server.mappath ("DList.mdb ") 'Write province JS array rs.open" SELECT * from proVince; ", conn, 1 ,1ifor i = 0 to rs.RecordCount-1 pstr = pstr &" <option value = "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" ) & "" ""> ") &" </ option> "GetSub (RS (" p_name ")) rs.MovenextNext</p>
<p>rs.close () set = NothingSet GRS = Nothing</p>
<p>'Process Sub getSub (PNAME) Grs.open "Select * from city where c_pid ='" & pname & "", conn, 1 ,1 for j = 1 to Grs.RecordCount Response. Write "ssort [Num ] = new array (" c_name ") &" "", "" "& pname &" ");" & vbcrlf Grs.Movenext Next Grs.close () end sub %> var nssortcount = Num;</p>
<p>Function SDBSortchange (CMBSDBSORT, CMBSSORT) {var NSELSDBSORT = CMBSDBSORT.SELECTEDINDEX; VAR SSDBSORT = CMBSDBSORT.OPTIONS [NSELSDBSORT] .value;</p>
<p>CMBssort.Length = 0; cMBssort.Options [0] = new option ('- Please select -', ''); for (var i = 0; i <nssortcount; i ) {IF (SSORT [i] [1] == SSDBSORT) {cMbssort.Options [cMBss.Length] = new option (SSORT [i] [0], ssort [i] [0]);}}}</p>
<p>Function INITSSORT (CMBSDBSORT, CMBSSORT) {var NSELSDBSORT = CMBSDBSORT.SELECTEDINDEX; VAR SSDBSORT = CMBSDBSORT.Options [NSELSDBSD] .value; var sssst = cMBss.Options [0] .value;</p>
<p>CMBssort.Length = 0; cMBss.Options [0] = new option ('- Please select -', ''); var n = 0; for (var i = 0; INSSORTCOUNT; I ) {IF (SSORT [i] [1] == SSDBSORT) {cMbssort.Options [cMBss.Length] = new option (ssort [i] [0], ssort [i] [0]); if (SSORT [i] [0] == sss CMBSSort.Options [cMBss.Length-1] .selected = true;}}} // -> </ script> </ hEAD></p></div><div class="text-center mt-3 text-grey">
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