SF: in Salesforce, use apex to implement a drop-down list

Apexpage:

<Apex: selectlist value = "{! Optionacc} "size =" 1 "style =" width: 230px ">

<Apex: selectoptions value = "{! Optionacclist} "> </Apex: selectoptions>

<Apex: actionsupport event = "onchange" Action = "{! Searchaccopplist} "rerender =" oppid/>

</Apex: selectlist>

Controller:

Public with sharing class accoppcontentcontroller {

Public String optionacc {Get; set ;}

Public list <selectoption> optionacclist {Get; set ;}

Private list <account> acclist = new list <account> ();

Public accoppcontentcontroller (){

Acclist = [select ID, name

From account order by name limit 10];

Optionacclist = new list <selectoption> ();

If (acclist! = NULL &&! Acclist. isempty ()){

Optionacclist. Add (New selectoption ('', '-- none --'));

For (account ACC: acclist ){

Optionacclist. Add (New selectoption (Acc. ID, ACC. Name ));

}

}

}

}

Drop-down list:

The value in <Apex: selectlist> is bound to a variable of the string type.

The value in <Apex: actionsupport> is bound to a list.

<Apex: actionsupport> bind an event to the control on it and a method.