# BNFDef Constructor

## Overloads

| [BNFDef()](https://help.qlik.com/en-US/sense-developer/November2024/Subsystems/NetSDKAPIref/Content/Qlik.Engine.BNFDef.-ctor.htm#Qlik_Engine_BNFDef__ctor) |  |  |
| --- | --- | --- |

[](https://help.qlik.com/en-US/sense-developer/Subsystems/NetSDKAPIref/Content/Qlik.Engine.BNFDef.-ctor.htm) [](https://help.qlik.com/en-US/sense-developer/Subsystems/NetSDKAPIref/Content/Qlik.Engine.BNFDef.-ctor.htm)

## BNFDef()

### Declaration

```

          public BNFDef()
    
  
```