The Widget doesn't update in the other widget

[fongcrush (foncrush)]

I dynamically added a child widget via column/row values.
However, widgets that belong to other widgets (such as WBP_InventoryPanel belong to WBP_MainMenu) are not updated when the column/row value were changed, but remain in the state they were in when they were added.

Is there no way?

//UInventoryPanel.h

UPROPERTY(EditDefaultsOnly, Category = "Inventory")
TSubclassOf<UInventoryItemSlot> InventorySlotClass;

UPROPERTY(EditDefaultsOnly, Category = "Inventory")
int32 SlotColumnSize;
	
UPROPERTY(EditDefaultsOnly, Category = "Inventory")
int32 SlotRowSize;

I try it in the editor/initialize method, but it still doesn’t update.

void UInventoryPanel::MakeSlots()
{
	InventoryPanel->ClearChildren();
	InventorySlots.Empty();
		
	for (int Row = 0; Row < SlotRowSize; ++Row)
	{
		for (int Column = 0; Column < SlotColumnSize; ++Column)
		{
			UInventoryItemSlot* ItemSlot = CreateWidget<UInventoryItemSlot>(this, InventorySlotClass);
			InventoryPanel->AddChildToUniformGrid(ItemSlot ,Row, Column);
			InventorySlots.Add(ItemSlot);
		}
	}
}
void UInventoryPanel::NativeOnInitialized()
{
	Super::NativeOnInitialized();
	MakeSlots();
}

void UInventoryPanel::NativePreConstruct()
{
	Super::NativePreConstruct();
	MakeSlots();
}

void UInventoryPanel::NativeConstruct()
{
	Super::NativeConstruct();
	MakeSlots();
}

void UInventoryPanel::SynchronizeProperties()
{
	Super::SynchronizeProperties();
	MakeSlots();
}

void UInventoryPanel::PostEditChangeProperty(struct FPropertyChangedEvent& PropertyChangedEvent)
{
	Super::PostEditChangeProperty(PropertyChangedEvent);
	MakeSlots();
}