不真实的引擎C++数据资产类问题

Question

因此，我正在尝试创建一个自定义数据资产，以便在“虚幻引擎”中使用。我对此非常陌生，我主要关注于艺术，所以这个C++并不接近我的强项，尽管我对OOP有一个大致的理解。无论如何，我的课看起来如下：

USTRUCT()
struct FTrainFormations {

    GENERATED_USTRUCT_BODY()

    UPROPERTY(EditAnywhere)
    FString TrainEntry;

    UPROPERTY(EditAnywhere)
    bool Flipped;

    UPROPERTY(EditAnywhere)
    bool CargoLoaded;

    UPROPERTY(EditAnywhere)
    bool AllowSubstitution;

};

UCLASS(BluePrintType)
class TS2NEW_API UTrainFormation : public UDataAsset
{
    GENERATED_BODY()

public:
    UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Train")
    TArray<FTrainFormations> Formation;

    UPROPERTY(EditAnywhere, Category = "Train", DisplayName = "Train Numbering Overrides")
    TArray<int> TrainNumberingOverrides;

    UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Vehicle Substitution")
    float BlockTrainProbability;

    UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Rail Vehicle Information")
    int CommonnessWeighting;

    UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Rail Vehicle Information")
    bool IsSubstitutableUnit;

    UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Rail Vehicle Information")
    bool IsDrivable;

    UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Browse Information", DisplayName = "Friendly Name")
    FString NameProperty;
};

它有效地创建了这样一个数据类：

​

​

我的问题是-如何将主数组元素从"4成员“更改为第一个字段的值？因此，当我稍后查看数组时，我可以看到数组内部的内容，而不必展开它。我到处都找遍了，却找不到任何东西，但我可能找错了东西。

Answer 1

解决:它实际上是超级容易，只是很难找到答案，因为似乎没有人知道它。

UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Train", meta = (TitleProperty = TrainEntry))
TArray<FTrainFormations> Formation;

本质上，您必须在数组的UPROPERTY上使用元数据说明符"TitleProperty“，并且可以设置静态标题或将其指向将覆盖"# members”的变量。根据上面的问题，这个示例将其赋值为FString TrainEntry的值。

示例