UE Tip: Readable Structure Arrays

Items

4 Array elements

Index [ 0 ]

2 items

Index [ 1 ]

2 items

Index [ 2 ]

2 items

Index [ 3 ]

2 items

Default

Readable

Seeing the number of members in a structure array item isn't overly helpful. Thankfully, when you're dealing with them in C++, there is one easy solution!

When declaring the UPROPERTY for the structure array, you can specify a TitleProperty metadata using the properties from the struct.

For example, using the ItemName property as the TitleProperty will result in the structure displaying that value.

UPROPERTY(EditAnywhere, Meta = (TitleProperty = "ItemName"))
TArray<FItemData> Items;

Using multiple structure properties as values can be achieved by surround the property with curly brackets.

UPROPERTY(EditAnywhere, Meta = (TitleProperty = "{ItemName} {ItemQuality}"))
TArray<FItemData> Items;

Full Example

/** The information of the item. */
USTRUCT(BlueprintType)
struct FItemData
{
    GENERATED_BODY();
 
    /** The name of the item. */
    UPROPERTY(EditAnywhere, BlueprintReadWrite)
    FName ItemName;
 
    /** The description of the item. */
    UPROPERTY(EditAnywhere, BlueprintReadWrite)
    FText ItemDescription;
 
	/** The quality of the item. */
	UPROPERTY(EditAnywhere, BlueprintReadWrite)
	FText ItemQuality;
 
    //..
};
 
/** A Data Asset that holds the array */
UCLASS(ClassGroup=(Custom), meta=(BlueprintSpawnableComponent))
class UInventoryManager : public UActorComponent
{
    GENERATED_BODY()
 
    /** The items contained in the inventory. */
    UPROPERTY(EditAnywhere, Meta = (TitleProperty = "{ItemName} {ItemQuality}"))
    TArray<FItemData> Items;
 
    //..
};