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# HideBehind
- **功能描述:** 只在指定的属性为true或不为空的时候本属性才显示
- **使用位置:** UPROPERTY
- **引擎模块:** DetailsPanel
- **元数据类型:** string="abc"
- **限制类型:** Foliage模块中
- **常用程度:** ★
```cpp
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category=Placement, meta=(UIMin = 0, ClampMin = 0, UIMax = 359, ClampMax = 359, HideBehind="AlignToNormal"))
float AlignMaxAngle;
```
只在Foliage里用到其实用EditCondition就可以达到同样的效果了。