/// <summary>
/// Validates the specified object, returning a collection of validation rules.
/// </summary>
/// <param name="context">The context.</param>
/// <returns></returns>
public override IEnumerable<IValidationFieldResult> Validate(ValidationContext context)
{
var results = new List<IValidationFieldResult>();
var dataErrorInfo = context.ValidationTarget as IDataErrorInfo;
if (dataErrorInfo != null)
{
var fields = "";
foreach (var field in context.FieldNamesToValidate)
{
fields += field + " ";
var message = dataErrorInfo[field];
if ((message ?? string.Empty).Trim().Length > 0)
{
results.Add(new ValidationFieldResult
{
AssociatedProperties = new[] { field },
Category = ValidationCategory.Error,
Message = message
});
}
}
Console.WriteLine("Validating fields: {" + fields.Trim() + "} on source " + context.ValidationTarget.GetType().Name);
}
return results;
}
/// <summary>
/// Validates the specified object, returning a collection of validation rules.
/// </summary>
/// <param name="context">The context.</param>
/// <returns></returns>
public override IEnumerable<IValidationFieldResult> Validate(ValidationContext context)
{
var validatable = context.ValidationTarget as IValidatable;
if (validatable != null)
{
return validatable.Validate().Where(r => r.AssociatedProperties.Intersect(context.FieldNamesToValidate).Count() > 0);
}
return new IValidationFieldResult[0];
}
/// <summary>
/// Determines whether this instance can validate the specified context.
/// </summary>
/// <param name="context">The context.</param>
/// <returns>
/// <c>true</c> if this instance can validate the specified context; otherwise, <c>false</c>.
/// </returns>
public override bool CanValidate(ValidationContext context)
{
return context.ValidationTarget is IValidatable;
}
private ValidationProvider GetFirstAppropriateValidationProvider(ValidationContext context)
{
var result = null as ValidationProvider;
foreach (var item in ValidationProviders)
{
if (!item.CanValidate(context)) continue;
result = item;
break;
}
return result;
}
/// <summary>
/// Validates the specified object, returning a collection of validation rules.
/// </summary>
/// <param name="context">The context.</param>
/// <returns></returns>
public override IEnumerable<IValidationFieldResult> Validate(ValidationContext context)
{
var provider = GetFirstAppropriateValidationProvider(context);
return provider != null ? provider.Validate(context) : new IValidationFieldResult[0];
}
/// <summary>
/// Determines whether this instance can validate the specified context.
/// </summary>
/// <param name="context">The context.</param>
/// <returns>
/// <c>true</c> if this instance can validate the specified context; otherwise, <c>false</c>.
/// </returns>
public override bool CanValidate(ValidationContext context)
{
return GetFirstAppropriateValidationProvider(context) != null;
}
/// <summary>
/// Determines whether this instance can validate the specified context.
/// </summary>
/// <param name="context">The context.</param>
/// <returns>
/// <c>true</c> if this instance can validate the specified context; otherwise, <c>false</c>.
/// </returns>
public override bool CanValidate(ValidationContext context)
{
return context.ValidationTarget is IDataErrorInfo;
}
public abstract IEnumerable<IValidationFieldResult> Validate(ValidationContext context);
public abstract bool CanValidate(ValidationContext context);