/// <summary>
/// chain on one of member happends data change ,and all data are available
/// </summary>
/// <param name="pthis"></param>
/// <param name="action"></param>
/// <param name="others"></param>
/// <returns></returns>
public static BaseVar Chain(BaseVar pthis, Action <ChainActionArgs> action, params BaseVar[] others)
{
EventHandler handler = new EventHandler((s, e) =>
{
if (others.Length > 0)
{
bool hasValue = true;
foreach (BaseVar other in others)
{
if (!other.HasValue)
{
hasValue = false;
break;
}
}
if (hasValue && action != null)
{
ChainActionArgs args = new ChainActionArgs();
args.pthis = pthis;
args.others = others;
action(args);
}
}
});
foreach (BaseVar other in others)
{
other.BaseValueChanged += handler;
}
return(pthis);
}
/// <summary>
/// chain on one of member happends data change
/// </summary>
/// <param name="pthis"></param>
/// <param name="action"></param>
/// <param name="others"></param>
/// <returns></returns>
public static BaseVar ChainOr(BaseVar pthis, Action <ChainActionArgs> action, params BaseVar[] others)
{
EventHandler handler = new EventHandler((s, e) =>
{
if (action != null)
{
ChainActionArgs args = new ChainActionArgs();
args.pthis = pthis;
args.others = others;
action(args);
}
});
foreach (BaseVar other in others)
{
other.BaseValueChanged += handler;
}
return(pthis);
}
