code: def GetValue(self, row, col):
      if self.IsEmptyCell(row, col):
          return None
      s = str(self.v.data[row][col])
      if len(self.column_size) <= col:
          self.column_size += [self.v.max_field_size] * (
              col - len(self.column_size) + 1
          )
      field_size = self.column_size[col]
      if len(s) > field_size:
          half = int(field_size - 3) // 2
          s = s[:half] + "..." + s[-half:]
      return s
  
imports: import wx
  import wx.grid
  from cellprofiler_core.preferences import get_error_color
  from cellprofiler_core.setting import Table
label_desc: Use image node_id 11 for calling the TableController obj's underlying member method code with example usage: obj.GetValue(row, col) and returns: s, None