Hi, I just installed Fantom 2 hours ago. I need to know how to add items to a combo box from code I know that I can add the whole list at once using
x:=Combo{text="pods available"} x.items=Pod.list
But I wanted to do something like :
x:=Combo{text="pods available"} Pod.list.each |pod , int| { x.items.add(pod) }
which compile successfully but generates a runtime error saying "List is readonly":
sys::ReadonlyErr: List is readonly
fan.sys.List.modify (List.java:1295) fan.sys.List.insert (List.java:369) fan.sys.List.add (List.java:347) test::Main.main (Main.fan:30) fan.sys.List.each (List.java:532) test::Main.main (Main.fan:28) java.lang.reflect.Method.invoke (Method.java:597) fan.sys.Method.invoke (Method.java:552) fan.sys.Method$MethodFunc.callList (Method.java:198) fan.sys.Method.callList (Method.java:138) fanx.tools.Fan.callMain (Fan.java:135) fanx.tools.Fan.executeType (Fan.java:102) fanx.tools.Fan.execute (Fan.java:38) fanx.tools.Fan.run (Fan.java:250) fanx.tools.Fan.main (Fan.java:288)
You need to set the list in a single op - not modify it - so something like this:
list := [,] 10.times |i| { list.add(i) } Combo { items=list }
In your case you can simply do:
x := Combo { text="pods available"; items=Pod.list }
Map is useful in these cases as well:
Combo { items = Pod.list.map |p| { "$p.name - $p.version" } }
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tamer Wed 29 Jun 2011
Hi, I just installed Fantom 2 hours ago. I need to know how to add items to a combo box from code I know that I can add the whole list at once using
x:=Combo{text="pods available"} x.items=Pod.list
But I wanted to do something like :
x:=Combo{text="pods available"} Pod.list.each |pod , int| { x.items.add(pod) }
which compile successfully but generates a runtime error saying "List is readonly":
sys::ReadonlyErr: List is readonly
andy Wed 29 Jun 2011
You need to set the list in a single op - not modify it - so something like this:
list := [,] 10.times |i| { list.add(i) } Combo { items=list }In your case you can simply do:
x := Combo { text="pods available"; items=Pod.list }Map is useful in these cases as well:
Combo { items = Pod.list.map |p| { "$p.name - $p.version" } }