﻿<?xml version="1.0" encoding="utf-8"?><Type Name="INotifyDataErrorInfo" FullName="System.ComponentModel.INotifyDataErrorInfo"><TypeSignature Language="C#" Value="public interface INotifyDataErrorInfo" /><TypeSignature Language="ILAsm" Value=".class public interface auto ansi abstract INotifyDataErrorInfo" /><AssemblyInfo><AssemblyName>System</AssemblyName><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><Interfaces /><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>This interface enables data entity classes to implement custom validation rules and expose validation results asynchronously. This interface also supports custom error objects, multiple errors per property, cross-property errors, and entity-level errors. Cross-property errors are errors that affect multiple properties. You can associate these errors with one or all of the affected properties, or you can treat them as entity-level errors. Entity-level errors are errors that either affect multiple properties or affect the entire entity without affecting a particular property.</para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Defines members that data entity classes can implement to provide custom synchronous and asynchronous validation support.</para></summary></Docs><Members><Member MemberName="ErrorsChanged"><MemberSignature Language="C#" Value="public event EventHandler&lt;System.ComponentModel.DataErrorsChangedEventArgs&gt; ErrorsChanged;" /><MemberSignature Language="ILAsm" Value=".event class System.EventHandler`1&lt;class System.ComponentModel.DataErrorsChangedEventArgs&gt; ErrorsChanged" /><MemberType>Event</MemberType><AssemblyInfo><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><ReturnValue><ReturnType>System.EventHandler&lt;System.ComponentModel.DataErrorsChangedEventArgs&gt;</ReturnType></ReturnValue><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>The implementing class should raise this event on the user interface thread whenever the <see cref="M:System.ComponentModel.INotifyDataErrorInfo.GetErrors(System.String)" /> return value changes, even if the return value implements <see cref="T:System.Collections.Specialized.INotifyCollectionChanged" />.</para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Occurs when the validation errors have changed for a property or for the entire entity. </para></summary></Docs></Member><Member MemberName="GetErrors"><MemberSignature Language="C#" Value="public System.Collections.IEnumerable GetErrors (string propertyName);" /><MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance class System.Collections.IEnumerable GetErrors(string propertyName) cil managed" /><MemberType>Method</MemberType><AssemblyInfo><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><ReturnValue><ReturnType>System.Collections.IEnumerable</ReturnType></ReturnValue><Parameters><Parameter Name="propertyName" Type="System.String" /></Parameters><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>This method returns an <see cref="T:System.Collections.IEnumerable" /> that can change as asynchronous validation rules finish processing. This enables the binding engine to automatically update the user interface validation feedback when errors are added, removed, or modified. </para><para>The return value can change to a different <see cref="T:System.Collections.IEnumerable" />, or it can reuse a previously returned <see cref="T:System.Collections.IEnumerable" /> and change its contents. Any changes to the return value should raise the <see cref="E:System.ComponentModel.INotifyDataErrorInfo.ErrorsChanged" /> event, even if the return value implements <see cref="T:System.Collections.Specialized.INotifyCollectionChanged" />. </para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Gets the validation errors for a specified property or for the entire entity.</para></summary><returns><attribution license="cc4" from="Microsoft" modified="false" /><para>The validation errors for the property or entity.</para></returns><param name="propertyName"><attribution license="cc4" from="Microsoft" modified="false" />The name of the property to retrieve validation errors for; or null or <see cref="F:System.String.Empty" />, to retrieve entity-level errors.</param></Docs></Member><Member MemberName="HasErrors"><MemberSignature Language="C#" Value="public bool HasErrors { get; }" /><MemberSignature Language="ILAsm" Value=".property instance bool HasErrors" /><MemberType>Property</MemberType><AssemblyInfo><AssemblyVersion>4.0.0.0</AssemblyVersion></AssemblyInfo><ReturnValue><ReturnType>System.Boolean</ReturnType></ReturnValue><Docs><value>To be added.</value><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>This property returns false if there are no known entity-level or property-level validation errors for the entity at the time it is accessed. However, some validation rules may still be running asynchronously as described for the <see cref="M:System.ComponentModel.INotifyDataErrorInfo.GetErrors(System.String)" /> method. </para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Gets a value that indicates whether the entity has validation errors. </para></summary></Docs></Member></Members></Type>