anchor.diff:  [[components.grid.editing.validation]]
   === Handling Validation Errors
   
  -The input fields are validated when the value is updated. The default
  +The input fields are validated when the save button is clicked. The default
   error handler displays error indicators in the invalid fields, as well as the
   first error in the editor.
   
  
positive.code: [methodname]#setContainerDataSource()#.
  
  For example, if you have a collection of beans, you could wrap them in a Vaadin
  [classname]#BeanContainer# or [classname]#BeanItemContainer#, and bind to a [classname]#Grid# as follows
  
  
  [source, java]
  
negative.code: === Multiple Selection
  
  In the multiple selection mode, a user can select multiple items by clicking on
  the checkboxes in the leftmost column.
  
  [[figure.components.grid.selection.multi]]
  .Multiple Selection in  [classname]#Grid#
  