UPROPERTY(EditAnywhere) bool MyBool Binding Problem

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1

I cannot bind a boolean in my BP widget.

.h
    UPROPERTY(EditAnywhere, BlueprintReadWrite)
    bool MyBool;

When I bind to this variable in the BP Editor, I cannot change its value. It’s always set to true. What am I doing wrong?

I remember seeing someone else posting and answering this same question but I can’t find it.

Thank you for the help.

2

I ended up binding to an ECheckBoxState variable and calling a function in my class when the UI value changed:

.h
UPROPERTY(EditAnywhere, BlueprintReadWrite)
ECheckBoxState MyCheckboxState;
bool MyBoolVar;

UFUNCTION(BlueprintCallable)
virtual void CheckBoxChanged(bool isChecked);


.cpp
void UMyWidget::CheckBoxChanged(bool isChecked)
{
    MyBoolVar = isChecked;
    if (MyBoolVar)
        MyCheckboxState = ECheckBoxState::Checked;
    else
        MyCheckboxState = ECheckBoxState::Unchecked;
}

  1. I wouldn’t expect to have to do this in order to bind variables. I should be able to bind to a boolean, float, enum, FText, FString, int32, uint32 and documentation should clearly state how to do it.

  2. I shouldn’t have to set the checkbox state in the above code but do so just to make sure that the UI and I are on the same page. If my variable is TRUE, I’m making sure that the checkbox state is also TRUE, meaning CHECKED (or as the case may be).

I could rewrite the function to a single line:

void UMyWidget::CheckBoxChanged(bool isChecked)
{
    MyBoolVar = isChecked;
}

Which is kind of silly. Why don’t I just bind to it in the first place?

I suspect that I’m doing something wrong.