/// <summary>获取被更改属性列表</summary>
/// <param name="entity">要跟踪的实体</param>
/// <param name="refer">用于参照的实体</param>
/// <param name="param">参数</param>
/// <returns>被更改的集合</returns>
public static List <Change> GetChanges(T entity, T refer, Parameters param = null)
{
var als = FastReflection.FastGetAccessors <T>();
var ls = new List <Change>(als.Count);
foreach (var a in als.Values)
{
if (param.IgnoreVirtual && (a.IsVirtual || (a.DataType.IsGenericType && a.DataType.GetGenericTypeDefinition() == typeof(List <>))))
{
continue;
}
if (!a.CanRade)
{
continue;
}
var v1 = a.GetValue(entity);
var v2 = a.GetValue(refer);
if (!AreEqual(v1, v2))
{
ls.Add(new Change {
Name = a.Name, OldValue = v1, NewValue = v2
});
}
}
return(ls);
}
private void PropertyChangedEventHandler(object sender, PropertyChangedEventArgs e)
{
var als = FastReflection.FastGetAccessors <T>();
foreach (var a in als.Values)
{
if (PARAMS.IgnoreVirtual && (a.IsVirtual || (a.DataType.IsGenericType && a.DataType.GetGenericTypeDefinition() == typeof(List <>))))
{
continue;
}
if (!a.CanRade)
{
continue;
}
if (a.Name == e.PropertyName)
{
var newValue = a.GetValue(sender);
if (dicChange.ContainsKey(a.Name))
{
dicChange.Remove(a.Name);
}
dicChange.Add(a.Name, new Change {
Name = a.Name, NewValue = newValue
});
break;
}
}
}