59 lines
1.7 KiB
Markdown
59 lines
1.7 KiB
Markdown
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# EditConditionHides
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- **功能描述：** 在已经有EditCondition的情况下，指定该属性在EditCondition不满足的情况下隐藏起来。
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- **使用位置：** UPROPERTY
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- **元数据类型：** bool
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- **关联项：** [EditCondition](../EditCondition/EditCondition.md)
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- **常用程度：** ★★★★★
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在已经有EditCondition的情况下，指定该属性在EditCondition不满足的情况下隐藏起来。
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## 测试代码：
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```cpp
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UCLASS(BlueprintType)
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class INSIDER_API UMyProperty_EditCondition_Test :public UObject
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{
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GENERATED_BODY()
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public:
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Property)
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bool MyBool;
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Property, meta = (EditConditionHides, EditCondition = "MyBool"))
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int32 MyInt_EditCondition_Hides = 123;
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public:
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = PropertyExpression)
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int32 MyFirstInt = 123;
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = PropertyExpression)
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int32 MySecondInt = 123;
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = PropertyExpression, meta = (EditConditionHides, EditCondition = "(MyFirstInt+MySecondInt)==500"))
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int32 MyInt_EditConditionExpression_Hides = 123;
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};
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```
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## 测试效果：
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下面的图中可以明显见到两个属性随着条件的满足显示了出来。
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## 原理：
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其实就是加了个是否显示的判断。
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```cpp
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bool FPropertyNode::IsOnlyVisibleWhenEditConditionMet() const
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{
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static const FName Name_EditConditionHides("EditConditionHides");
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if (Property.IsValid() && Property->HasMetaData(Name_EditConditionHides))
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{
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return HasEditCondition();
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}
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return false;
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}
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```
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