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Building WPF Applications with Self-Tracking Entity Generator - Project Setup

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20 Feb 2012CPOL10 min read 75.2K   4.8K   54  
This article describes the project setup of building a WPF sample application with Self-Tracking Entity Generator for WPF/Silverlight.
//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated from a template.
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;

#if (SILVERLIGHT || WPF)
namespace SchoolSample.EntityModel
{
    public class ValidationResultChangedEventArgs : EventArgs
    {
        public ValidationResultChangedEventArgs(string propertyName, IList<ValidationResult> removedItems, IList<ValidationResult> addedItems)
        {
            PropertyName = propertyName;
            RemovedItems = removedItems ?? new List<ValidationResult>();
            AddedItems = addedItems ?? new List<ValidationResult>();
        }
    
        public string PropertyName { get; private set; }
        public IList<ValidationResult> AddedItems { get; private set; }
        public IList<ValidationResult> RemovedItems { get; private set; }
    }
    
    // An interface that provides an event that fires when validation results changed.
    public interface INotifyValidationResultChanged
    {
        event EventHandler<ValidationResultChangedEventArgs> ValidationResultChanged;
    }
    
    // An interface that provides methods and properties for client side change tracking
    public interface IClientChangeTracking
    {
        // accepts changes made to the entity object
        void AcceptChanges();
        // rejects changes made to the entity object
        void RejectChanges();
        // whether the entity object has any changes
        bool HasChanges { get; }
        // accepts changes made to the entity object and all objects of its object graph
        void AcceptObjectGraphChanges();
        // rejects changes made to the entity object and all objects of its object graph
        void RejectObjectGraphChanges();
        // returns whether the entity object along with its object graph has any changes
        bool ObjectGraphHasChanges();
        // returns the estimate size of the entity object along with its object graph
        long EstimateObjectGraphSize();
        // returns the estimate size of the optimized entity object graph with only objects that have changes
        long EstimateObjectGraphChangeSize();
        // returns an optimized entity object graph with only objects that have changes
        IObjectWithChangeTracker GetObjectGraphChanges();
    }
}
#endif

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Software Developer (Senior)
United States United States
Weidong has been an information system professional since 1990. He has a Master's degree in Computer Science, and is currently a MCSD .NET

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