# MetaData.MetaDataValidationEventArgs class

Namespace: [Grasshopper2.Data.Meta](https://developer.rhino3d.com/api/gh2/namespace/grasshopper2.data.meta.md) · Assembly: [Grasshopper2](https://developer.rhino3d.com/api/gh2/assembly/grasshopper2.md)

```cs
public sealed class MetaData.MetaDataValidationEventArgs : EventArgs
```

Event arguments used during meta data validation.

## Constructors

- [MetaData.MetaDataValidationEventArgs](https://developer.rhino3d.com/api/gh2/type/grasshopper2.data.meta.metadata.metadatavalidationeventargs/ctor.md)

## Properties

- [Name](https://developer.rhino3d.com/api/gh2/type/grasshopper2.data.meta.metadata.metadatavalidationeventargs/name.md): Gets the name to evaluate.
- [Value](https://developer.rhino3d.com/api/gh2/type/grasshopper2.data.meta.metadata.metadatavalidationeventargs/value.md): gets the associated value.

## Methods

- [FlagAsInvalid](https://developer.rhino3d.com/api/gh2/type/grasshopper2.data.meta.metadata.metadatavalidationeventargs/flagasinvalid.md): Call this method to flag up this particular name-value pair as invalid.