Xceed Grid for WinForms cells can be validated by comparing them with another cell on the same row. When "Other Cell Value" is selected in the Criterion Type group, the value contained in the cell chosen in the Compared Column Field Name dropdown list is used for the validation.
For details on the Required Field, Case Sensitive, and Trim Left/Right checkboxes, and the Customize Error Messages for this Criterion link, see the Other Options topic.
Validation Level | Criterion Reference Name