/// <summary>
/// Sets the <paramref name="field"/> and calls property changed for it and any others given with a <see cref="AlsoNotifyAttribute"/>.
/// </summary>
/// <typeparam name="TValue">Type of the value.</typeparam>
/// <param name="field">Field to set.</param>
/// <param name="newValue">New value of the field.</param>
/// <param name="trackChanges">True if <see cref="BeginEdit"/> should be called if the value changes.</param>
/// <param name="propertyName">Name of the property to notify with.</param>
/// <returns>Returns true if new value was set</returns>
protected bool SetProperty <TValue>(ref TValue field, TValue newValue, bool trackChanges = true, [CallerMemberName] string propertyName = null)
{
if (EqualityComparer <TValue> .Default.Equals(field, newValue))
{
return(false);
}
if (trackChanges)
{
BeginEdit();
}
field = newValue;
RaisePropertyChanged(propertyName);
if (AlsoNotifyMap.TryGetValue(propertyName, out var alsoNotify))
{
foreach (var propName in alsoNotify)
{
RaisePropertyChanged(propName);
}
}
return(true);
}
private void SetupAlsoNotify()
{
var alsoNotifyProperties = Accessor.GetMembers().Where(m => m.IsDefined(typeof(AlsoNotifyAttribute)));
foreach (var propertyInfo in alsoNotifyProperties)
{
var attr = (AlsoNotifyAttribute)propertyInfo.GetAttribute(typeof(AlsoNotifyAttribute), true);
AlsoNotifyMap.Add(propertyInfo.Name, attr.AlsoNotify);
}
}
