I compare B, I don't know how to use video to solve, I have to write it with me.
Under normal circumstances, this situation is useful to the second-level directory. For the JS currently passed by the website, there is no more than the JS code that is like me like me like my rookie. . A bit for ... A bit array.
Tony said nonsense, cut into the topic.
First, you have to build a table, of course, if you have built a directory in your table, this step can be omitted. But one thing to remind:
This table is the basis for the use of this example (I don't know if it is right.).
Since I use the table is Access, I don't say it, I only list the corresponding field name of this two tables (Database Name: db.mdb):
Table name: Type_tree - Parental class field: type_id (Auto Number) TYPE_NAME (Category Name)
Table Name: S_TYPE - Sub-class field: ID (Auto Number) S_NAME (Submate Name) TYPE_ID (Parent Class ID) - corresponds to the parent class
Now is a database connection:
DIM CONN, ConnStRset Conn = Server.createObject ("AdoDb.Connection") connStr = "provider = microsoft.jet.Oledb.4.0;" Connstr = Connstr & "Data Source =" & Server.MAppath ("db.mdb") Conn.open Connstr or above should not be explained, it is a common code. .
Now enter substantive operation :)
The second-level related menu is generally the following menu, here I don't excera way, use the drop-down menu.
But there is a place here.
Just use it is
Jump menu, this is very important, success or not, is there anything right!
Here is the code of this jump menu!
Buy up to mention:
