code: def rebuild( self ):
          self.setUpdatesEnabled(False)
          self.blockSignals(True)
          for child in self.findChildren(QObject):
              child.setParent(None)
              child.deleteLater()
          schema = self.schema()
          if ( schema ):
              self.setEnabled(True)
              uifile = self.uiFile()
              if ( uifile ):
                  projexui.loadUi('', self, uifile)
                  for widget in self.findChildren(XOrbColumnEdit):
                      columnName = widget.columnName()
                      column     = schema.column(columnName)
                      if ( column ):
                          widget.setColumn(column)
                      else:
                          logger.debug('%s is not a valid column of %s' % \
                                       (columnName, schema.name()))
              else:
                  layout = QFormLayout()
                  layout.setContentsMargins(0, 0, 0, 0)
                  columns = schema.columns()
                  columns.sort(key = lambda x: x.displayName())
                  record = self.record()
                  for column in columns:
                      if ( column.name().startswith('_') ):
                          continue
                      label   = column.displayName()
                      coltype = column.columnType()
                      name    = column.name()
                      widget  = XOrbColumnEdit(self)
                      widget.setObjectName('ui_' + name)
                      widget.setColumnName(name)
                      widget.setColumnType(coltype)
                      widget.setColumn(column)
                      layout.addRow(QLabel(label, self), widget)
                  self.setLayout(layout)
                  self.adjustSize()
                  self.setWindowTitle('Edit %s' % schema.name())
          else:
              self.setEnabled(False)
          self.setUpdatesEnabled(True)
          self.blockSignals(False)