About JComboBox in NetBeans (check box)

1. Put options in the reciprocating box (added according to the database)

(1) First, the default Item1234 in attribute->model is emptied

(2) Get the data in the database and put it in.

Selectcourseview scv=NewSelectcourseview (); intSelectindex=-1; Syscoursedao SCD=NewSyscoursedaoimpl (); List<CourseView> courselist =Scd.queryallcourse ();
Get a table that holds the view, and then put in
Add excuses to your DAO package to get all the course names PublicTeascoreframe () {initcomponents ();　　　　　　INITDEP ();    This method must be placed after initcomponents (), initialize the component first, and then put the content. }     Public voidInitdep () { for(Courseview cs:courselist) { This. Comcourseid.additem (Cs.getid ()); Iterate through the entire table and put it in one place}}

2. Get the current contents of the check box

Private voidBtnsearchactionperformed (java.awt.event.ActionEvent evt) {
First, empty the contents of the table and put the DefaultTableModel DTM= (DefaultTableModel) This. Tblteasearchselect.getmodel ();  while(Dtm.getrowcount () >0) {Dtm.removerow (0); }       //1. Get DefaultTableModel//2. Remove content from current table//3. Display data in table by vector object       intSs= Integer.parseint (( This. Comcourseid.getselecteditem ()). ToString ());
//Comcourseid.getselecteditem () obtains an int, but cannot be directly equal, converted to a string and converted to int

Teacherdao TS New
List<SelectCourseView> scvlist=

For
New

3. Select the item that you want to display according to the check box in the table

This is a relatively simple

1  for(inti=0;i< This. Cbdep.getmodel (). GetSize (); i++)   {2     //traverse each item in the drop-down box to find the item that matches the selected item3Department dept= (Department) This. Cbdep.getitemat (i);4         if(Depa.equals (Dept.getdepname ()))5         {6              This. Cbdep.setselectedindex (i);7            }8}

About JComboBox in NetBeans (check box)