public static void Length <TOwnerVM, TTargetVM>(
this PropertyValidatorBuilder <TOwnerVM, TTargetVM, string> builder,
int maximumLength,
string errorMessage,
object details = null
)
where TOwnerVM : IViewModel
where TTargetVM : IViewModel
{
builder.Custom((args) => {
if (args.Value != null && args.Value.Length > maximumLength)
{
args.AddError(errorMessage.FormatWith(maximumLength), details);
}
});
}
public static void RegexValidation <TOwnerVM, TTargetVM>(
this PropertyValidatorBuilder <TOwnerVM, TTargetVM, string> builder,
string regexPattern,
string errorMessage,
object details = null
)
where TOwnerVM : IViewModel
where TTargetVM : IViewModel
{
Regex regex = new Regex(regexPattern);
builder.Custom((args) => {
if (!(String.IsNullOrEmpty(args.Value) || regex.IsMatch(args.Value)))
{
args.AddError(errorMessage, details);
}
});
}
public static void HasValue <TOwnerVM, TTargetVM, TValue>(
this PropertyValidatorBuilder <TOwnerVM, TTargetVM, TValue> builder,
string errorMessage,
object details = null
)
where TOwnerVM : IViewModel
where TTargetVM : IViewModel
{
builder.Custom((args) => {
bool empty =
(args.Value is string && String.IsNullOrWhiteSpace(args.Value as string)) ||
Object.Equals(args.Value, null);
if (empty)
{
args.AddError(errorMessage, details);
}
});
}
public static void Max <TOwnerVM, TTargetVM, TValue>(
this PropertyValidatorBuilder <TOwnerVM, TTargetVM, TValue> builder,
TValue max,
string message = null,
object details = null
)
where TOwnerVM : IViewModel
where TTargetVM : IViewModel
where TValue : IComparable
{
message = message ?? Localized.ValidationMax;
builder.Custom((args) => {
if (max.CompareTo(args.Value) < 0)
{
string msg = message.FormatWith(max); // DO NOT reuse parameter!
args.AddError(msg, details);
}
});
}
public static void Min <TOwnerVM, TTargetVM, TValue>(
this PropertyValidatorBuilder <TOwnerVM, TTargetVM, Nullable <TValue> > builder,
TValue min,
string message = null,
object details = null
)
where TOwnerVM : IViewModel
where TTargetVM : IViewModel
where TValue : struct, IComparable
{
message = message ?? Localized.ValidationMin;
builder.Custom((args) => {
if (args.Value.HasValue &&
min.CompareTo(args.Value) == 1)
{
string msg = message.FormatWith(min); // DO NOT reuse parameter!
args.AddError(msg, details);
}
});
}
public static void Min <TOwnerVM, TTargetVM, TValue>(
this PropertyValidatorBuilder <TOwnerVM, TTargetVM, TValue> builder,
Func <TOwnerVM, TValue> minValueSelector,
string message = null,
object details = null
)
where TOwnerVM : IViewModel
where TTargetVM : IViewModel
where TValue : IComparable
{
message = message ?? Localized.ValidationMin;
builder.Custom((args) => {
var minValue = minValueSelector(args.Owner);
if (minValue.CompareTo(args.Value) == 1)
{
string msg = message.FormatWith(minValue); // DO NOT reuse parameter!
args.AddError(msg, details);
}
});
}