Question : How do I use validation in WPF

How do I write this code?

      Text="{Binding Data.Description,
   // This is my question: ValidationRules syntax
    ValidationRules={StaticResource FieldCantBeNull},
    ElementName=window, Mode=OneWay}" />

  FieldCantBeNull is a ValidationRule. How is written if I use two validations in the same TextBox? I want to know write in a single line.

  This format is the Blend format. Is there a way to write the ValidationRule automaticaly in Blend? I found hwo to write a Converter by not a Validator.

  Thanks,

  Marco Castro

Answer : How do I use validation in WPF

Isn't it possible to write this code in a single line? In this format:

Text="{Binding Data.Description,
    ValidationRules={...I don´t know what comes here....},
    ElementName=window, Mode=OneWay}"