} // Цена
public BaseModelValidationResult Validate()
{
var validationResult = new BaseModelValidationResult();
if (string.IsNullOrWhiteSpace(name))
{
validationResult.Append($"Book title cannot be empty");
}
if (string.IsNullOrWhiteSpace(author))
{
validationResult.Append($"Author name cannot be empty");
}
if (string.IsNullOrWhiteSpace(publ))
{
validationResult.Append($"Publisher cannot be empty");
}
if (!(date > 0))
{
validationResult.Append($"Date must be higher than 0");
}
if (!(price > 0))
{
validationResult.Append($"Price must be higher than 0");
}
return(validationResult);
}
public BaseModelValidationResult Validate()
{
var validationResult = new BaseModelValidationResult();
if (string.IsNullOrWhiteSpace(Name))
{
validationResult.Append($"Name cannot be empty");
}
if (string.IsNullOrWhiteSpace(Surname))
{
validationResult.Append($"Surname cannot be empty");
}
if (!(0 < GroupIndex && GroupIndex < 100))
{
validationResult.Append($"GroupIndex {GroupIndex} is out of range (0..100)");
}
if (!string.IsNullOrEmpty(Name) && !char.IsUpper(Name.FirstOrDefault()))
{
validationResult.Append($"Name {Name} should start from capital letter");
}
if (!string.IsNullOrEmpty(Surname) && !char.IsUpper(Surname.FirstOrDefault()))
{
validationResult.Append($"Surname {Surname} should start from capital letter");
}
return(validationResult);
}