c# - Property Grid -- Editor ellipsis dont show with a dropdown list -


in property grid, have implemented property both stringconverter display list of values , uitypeeditor open form editing.

each work separately. however, when put both of them together, stringconverter , uitypeeditor, dont see ellipsis edit property. ellipsis hidden below arrow of dropdown.

any idea?

code below -- if helps

       [editor(typeof(videodeviceeditor), typeof(uitypeeditor))]     [typeconverter(typeof(videodeviceslist))]     public class videodevices     {      }     public class videodeviceslist : system.componentmodel.stringconverter     {         public override system.componentmodel.typeconverter.standardvaluescollection getstandardvalues(itypedescriptorcontext context)         {             channelpropertyconfiguration inst = (channelpropertyconfiguration)context.instance;             list<string> lgs = new list<string>();              lgs.add("microsoft life cam");             lgs.add("logitech web cam");              return new standardvaluescollection(lgs);         }         public override bool getstandardvaluessupported(itypedescriptorcontext context)         {             return true;         }         public override bool getstandardvaluesexclusive(itypedescriptorcontext context)         {             return true;         }     }      public class videodeviceeditor : uitypeeditor     {         public override uitypeeditoreditstyle geteditstyle(itypedescriptorcontext context)         {             return uitypeeditoreditstyle.modal;         }         public override object editvalue(itypedescriptorcontext context, system.iserviceprovider provider, object value)         {             iwindowsformseditorservice svc = provider.getservice(typeof(iwindowsformseditorservice)) iwindowsformseditorservice;             if (svc != null)             {                 messagebox.show("ok");             }             return value;         }     }


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