private void DeleteMember() { if (lbGroupMember != null && lbGroupDesignerItem != null) { int groupMemberPos = lbGroup.groupMemberList.FindIndex(gmbr => gmbr == lbGroupMember); if (LBEditorHelper.PromptForDelete("Group Member", "", groupMemberPos, false)) { lbGroup.groupMemberList.Remove(lbGroupMember); lbGroupMember = null; if (lbGroupDesignerItem.lbGroupDesigner) { lbGroupDesignerItem.lbGroupDesigner.RefreshWorkspace(); } } } }