protected virtual void OnExisted(DataExistenceContext context)
{
var e = this.Existed;
if (e != null)
{
e(this, new DataExistedEventArgs(context));
}
}
protected virtual bool OnExisting(DataExistenceContext context)
{
var e = this.Existing;
if (e == null)
{
return(false);
}
var args = new DataExistingEventArgs(context);
e(this, args);
return(args.Cancel);
}
protected virtual void OnExisted(DataExistenceContext context)
{
}
public DataExistingEventArgs(DataExistenceContext context) : base(context)
{
_cancel = false;
}