Hello friends,
I tried to create a select option value on change using classic ASP but it didn't work. No error but when I view, nothing pop up from second select.
I like to select student name from first select box, if it matches, then second box shows course name, and third box shows Semester.
I like to store student names and StudentID into DB.
Can anyone help?
Students table
StudentID Firstname Lastname
-------------------------------
01 AAA LN1
02 BBB LN2
03 CCC LN3
Class table
Course CourseID StudentID Semester
-------------------------------------
History C01 01 Spring
History C01 01 Summer
Math C02 02 Spring
Math C02 02 Fall
Code:
<% Set oRs = Server.CreateObject("adodb.recordset") strSQL = " SELECT StudentID, Firstname, Lastname FROM Students Where StudentID = '" & Request.ServerVariables("LOGON_Student") & "'" oRs.Open strSQL, myConn sName = oRs("Lastname") & ", " & oRs("Firstname") if not oRs.eof then %> <select name="Students" id="selectStudent" onChange="this.form.action='default.asp';this.form.submit();"> <option value="<%= oRs(0) %>" <% if trim(request.Form("Students")) = trim(oRs(0)) then response.write " selected "end if %>><%= sName %></option> <option value="<%= oRs("StudentID") %>" hidden></option> </select> <% end if %> <% if request.Form("Students") <> "" then strSQL = " SELECT Course FROM Class WHERE StudentID = '" & request.Form("StudentID") & "'" Set oRs = Server.CreateObject("adodb.RecordSet") oRs.Open strSQL, myConn if not oRs.eof then %> <select name="Class" id="selectClass" onChange="this.form.action='default.asp';this.form.submit();"> <% do until oRs.eof %> <option value="<%= oRs(0) %>" <% if trim(request.Form("Class")) = trim(oRs(0)) then response.write " selected "end if %>><%= oRs(0) %></option> <% oRs.MoveNext loop %> </select> <% end if end if %> <% if request.Form("Class") <> "" then strSQL = " SELECT Semester FROM Class WHERE Course = '" & request.Form("Course") & "'" Set oRs = Server.CreateObject("adodb.RecordSet") oRs.Open strSQL, myConn if not oRs.eof then %> <select name="Class" id="selectClass" onChange="this.form.action='default.asp';this.form.submit();"> <% do until oRs.eof %> <option value="<%= oRs(0) %>" <% if trim(request.Form("Class")) = trim(oRs(0)) then response.write " selected "end if %>><%= oRs(0) %></option> <% oRs.MoveNext loop %> </select> <% end if end if %>
Select/Option/Value on change using Classic ASP
