Is is possible to reparent a blueprint dynamically..

Development Programming & Scripting C++
1

Is it possible to re-parent a blueprint when a certain option in the blueprints tab is clicked?

e.g. I got an enum. Is it possible to change the blueprint’s base class when a certain enum type is choosen? The base classes are in c++.

Another related question. Suppose I chose a certain Enum in the blueprints tab, how to make certain options in the details panel visible and hide other options. I had seen a few post regarding it.

2

First thing is not possible. Second option can be possible but you cannot hide/unhide it but instead you can enable/disable them using ***PostEditChangeProperty. ***Here is an example:

TestActor.h

#pragma once

#include "GameFramework/Actor.h"
#include "TestActor.generated.h"


UENUM(BlueprintType)
enum class ETestEnum : uint8
{
    MyOption1,
    MyOption2
};


UCLASS()
class PROPERTYTEST_API ATestActor : public AActor
{
    GENERATED_BODY()
    
public:    
    ATestActor();


    // Boolean property that decides if the float variables should be editable
    UPROPERTY()
    bool bEnableProperty;


    UPROPERTY( EditAnywhere, Category = "Test Actor" )
    ETestEnum MyTestEnum;


    UPROPERTY( EditAnywhere, Category = "Test Actor", meta = (EditCondition = "bEnableProperty") )
    float MyFloat1;


    UPROPERTY( EditAnywhere, Category = "Test Actor", meta = (EditCondition = "bEnableProperty") )
    float MyFloat2;


    UPROPERTY( EditAnywhere, Category = "Test Actor", meta = (EditCondition = "!bEnableProperty") )
    float MyFloat3;


    UPROPERTY( EditAnywhere, Category = "Test Actor", meta = (EditCondition = "!bEnableProperty") )
    float MyFloat4;


#if WITH_EDITOR
    // Called when you change a property
    virtual void PostEditChangeProperty( FPropertyChangedEvent& PropertyChangedEvent ) override;
#endif
};

TestActor.cpp

#include "PropertyTest.h"
#include "TestActor.h"


ATestActor::ATestActor()
{
     
}


#if WITH_EDITOR
void ATestActor::PostEditChangeProperty( FPropertyChangedEvent& PropertyChangedEvent )
{
    switch (MyTestEnum)
    {
        case ETestEnum::MyOption1:
            // Disable editing of variables MyFloat1 and MyFloat2
            bEnableProperty = false;
            break;
        case ETestEnum::MyOption2:
            // Enables editing of variables MyFloat3 and MyFloat4
            bEnableProperty = true;
            break;
        default:
            break;
    }


    Super::PostEditChangeProperty( PropertyChangedEvent );
}
#endif