DictionaryValidateGroup
public class DictionaryValidateGroup : IDictionaryValidate, IDataErrorInfo, INotifyPropertyChanged, IDisposable
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
namespace Castle.Components.DictionaryAdapter
{
public class DictionaryValidateGroup : IDictionaryValidate, IDataErrorInfo, INotifyPropertyChanged, IDisposable
{
private readonly object[] groups;
private readonly IDictionaryAdapter adapter;
private readonly string[] propertyNames;
private readonly PropertyChangedEventHandler propertyChanged;
public bool CanValidate {
get {
return adapter.CanValidate;
}
set {
adapter.CanValidate = value;
}
}
public bool IsValid => string.IsNullOrEmpty(Error);
public string Error => string.Join(Environment.NewLine, (from propertyName in propertyNames
select adapter[propertyName] into errors
where !string.IsNullOrEmpty(errors)
select errors).ToArray());
public string this[string columnName] {
get {
if (Array.IndexOf(propertyNames, columnName) >= 0)
return adapter[columnName];
return string.Empty;
}
}
public IEnumerable<IDictionaryValidator> Validators => adapter.Validators;
public event PropertyChangedEventHandler PropertyChanged;
public DictionaryValidateGroup(object[] groups, IDictionaryAdapter adapter)
{
this.groups = groups;
this.adapter = adapter;
propertyNames = (from property in this.adapter.This.Properties.Values
from groupings in property.Annotations.OfType<GroupAttribute>()
where this.groups.Intersect(groupings.Group).Any()
select property.PropertyName).Distinct().ToArray();
if (propertyNames.Length != 0 && adapter.CanNotify) {
propertyChanged = (PropertyChangedEventHandler)Delegate.Combine(propertyChanged, (PropertyChangedEventHandler)delegate(object sender, PropertyChangedEventArgs args) {
if (this.PropertyChanged != null)
this.PropertyChanged(this, args);
});
this.adapter.PropertyChanged += propertyChanged;
}
}
public DictionaryValidateGroup ValidateGroups(params object[] groups)
{
groups = this.groups.Union(groups).ToArray();
return new DictionaryValidateGroup(groups, adapter);
}
public void AddValidator(IDictionaryValidator validator)
{
throw new NotSupportedException();
}
public void Dispose()
{
adapter.PropertyChanged -= propertyChanged;
}
}
}