protected PropertyExpression(object obj, IEnumerable<PropertyExpressionPart> parts)
{
if (obj == null)
throw new ArgumentNullException("obj");
if (parts == null)
throw new ArgumentNullException("parts");
/*foreach (object item in parts)
{
if (item == null)
{
throw new ArgumentException("An item inside the enumeration was null.", "parts");
}
}*/
if (parts.Cast<object>().Any(item => item == null))
{
throw new ArgumentException(Resources.AnItemWasNull, "parts");
}
_parts = new List<PropertyExpressionPart>(parts);
if (_parts.Count == 0)
throw new ArgumentException(Resources.OnePartRequired, "parts");
_finalPart = _parts.Last();
//whenever the final part's value changes, that means the value of the expression as a whole has changed
_finalPart.ValueChanged += delegate
{
OnValueChanged();
};
//assign the initial object in the potential chain of objects resolved by the expression parts
_parts[0].Object = obj;
}
protected PropertyExpression(object obj, IEnumerable <PropertyExpressionPart> parts)
{
if (obj == null)
{
throw new ArgumentNullException("obj");
}
if (parts == null)
{
throw new ArgumentNullException("parts");
}
/*foreach (object item in parts)
* {
* if (item == null)
* {
* throw new ArgumentException("An item inside the enumeration was null.", "parts");
* }
* }*/
if (parts.Cast <object>().Any(item => item == null))
{
throw new ArgumentException(Resources.AnItemWasNull, "parts");
}
_parts = new List <PropertyExpressionPart>(parts);
if (_parts.Count == 0)
{
throw new ArgumentException(Resources.OnePartRequired, "parts");
}
_finalPart = _parts.Last();
//whenever the final part's value changes, that means the value of the expression as a whole has changed
_finalPart.ValueChanged += delegate
{
OnValueChanged();
};
//assign the initial object in the potential chain of objects resolved by the expression parts
_parts[0].Object = obj;
}
/// <summary>
/// Constructs an instance of <c>PropertyExpressionPart</c>.
/// </summary>
/// <param name="nextPart">The next part in the chain of parts held in the <see cref="PropertyExpression" />.</param>
/// <param name="bindOnValidation">if set to <c>true</c> the bound value should be updated on property validation.</param>
protected PropertyExpressionPart(PropertyExpressionPart nextPart, bool bindOnValidation)
{
_nextPart = nextPart;
_object = new WeakReference(null);
_bindOnValidation = bindOnValidation;
}
/// <summary>
/// Constructs an instance of <c>PropertyExpressionPart</c>.
/// </summary>
/// <param name="nextPart">The next part in the chain of parts held in the <see cref="PropertyExpression" />.</param>
/// <param name="bindOnValidation">if set to <c>true</c> the bound value should be updated on property validation.</param>
protected PropertyExpressionPart(PropertyExpressionPart nextPart, bool bindOnValidation)
{
_nextPart = nextPart;
_object = new WeakReference(null);
_bindOnValidation = bindOnValidation;
}