c# - Xceed Property Grid : Collection Editor Not Expanding In Proper Manner -

i have used xceed property grid. have used collection editor xceed collections in property grid.

[editor(typeof(customcollectioneditor), typeof(customcollectioneditor))] [serializable] public class variable { //properties in class } 

here custom collection editor has been derived xceed collection editor. nothing has been overwritten. wrapper class.

the xceed website tells following process expand: "the propertygrid supports scenario , allows drill down property’s heirarchy. enable behavior must decorate property expandableobject attribute"

so have used in property as:

[expandableobject] public list<variable> globalvariablelist {   { return _varlist; }   set { _varlist = value; } } 

but count of properties displayed in expanding this. , not property name , value.

i think customcollectioneditor needs on collection not item.