protected override object GetProvidedValue()
{
if (Mode == BindingMode.Default && TreeInfo.IsEmptyBackExpr() &&
Calculator.Operands.Count() == 0)
{
ActualMode = BindingMode.OneWay;
}
if ((ActualMode == BindingMode.TwoWay || ActualMode == BindingMode.OneWayToSource) &&
TreeInfo.IsEmptyBackExpr())
{
if (TreeInfo.IsSimpleExpr())
{
Calculator.Operands.FirstOrDefault().Do(x => x.SetMode(true));
}
else
{
ErrorHandler.Throw(ErrorHelper.Err101_TwoWay(), null);
}
}
if (IsInSetter(TargetProvider) || TargetPropertyType == typeof(BindingBase))
{
return(CreateBinding());
}
return(CreateBinding().ProvideValue(ServiceProvider));
}