/// <summary>
/// Returns validation message for given property and validation attribute.
/// Can be overriden to return custom messages based on <see cref="AttributeValidationResult.ValidationType"/> property.
/// </summary>
/// <param name="propertyValidationResult">Result of validation of property value against all its validation attributes.</param>
/// <param name="attributeValidationResult">Result of validation of property value against single validation attribute.</param>
/// <returns>Validation message.</returns>
public virtual string GetValidationMessage(PropertyValidationResult propertyValidationResult, AttributeValidationResult attributeValidationResult)
{
_ = attributeValidationResult ?? throw new ArgumentNullException(nameof(attributeValidationResult));
return(attributeValidationResult.ValidationResult.ErrorMessage);
}
/// <inheritdoc />
public override string GetValidationMessage(PropertyValidationResult propertyValidationResult, AttributeValidationResult attributeValidationResult)
{
_ = attributeValidationResult ?? throw new ArgumentNullException(nameof(attributeValidationResult));
_ = propertyValidationResult ?? throw new ArgumentNullException(nameof(propertyValidationResult));
var propertyDisplayName = GetPropertyDisplayName(propertyValidationResult);
switch (attributeValidationResult.ValidationType)
{
case ValidationType.Required:
case ValidationType.RequiredNonDefault:
return(string.Format(CultureInfo.CurrentCulture, ValidationMessages.Required, propertyDisplayName));
case ValidationType.StringLength:
var stringLengthAttribute = (StringLengthAttribute)attributeValidationResult.ValidationAttribute;
return(string.Format(CultureInfo.CurrentCulture, ValidationMessages.StringLength, propertyDisplayName, stringLengthAttribute.MinimumLength, stringLengthAttribute.MaximumLength));
default:
return(base.GetValidationMessage(propertyValidationResult, attributeValidationResult));
}
}
