# StructItemGroupParameterUnion

Location: [gRPC API](https://developer.m-files.com/APIs/gRPC-API/index.md) > [Reference](https://developer.m-files.com/APIs/gRPC-API/Reference/index.md) > [Messages](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/index.md)

HTML version: https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.StructItemGroupParameterUnion/

An union for the group parameter for the export structure item.

- **Full name:** `MFiles.StructItemGroupParameterUnion`
- **Proto file:** [`mfiles/structs.proto`](https://developer.m-files.com/APIs/gRPC-API/downloads/proto/mfiles/structs.proto)

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## Fields

| Field | Type | Number | Description |
|---|---|---|---|
| <a id="f-views_by_selected_user"></a>`views_by_selected_user` | `int32` (oneof data) | 3 | Export structure item represents all view from the given user id within selected type. |
| <a id="f-handlers_of_selected_event_handler_type"></a>`handlers_of_selected_event_handler_type` | [`InternalEventType`](https://developer.m-files.com/APIs/gRPC-API/Reference/Enums/MFiles.InternalEventType/index.md) (oneof data) | 4 | Export structure item represents all event handlers of a given event handler type within selected type. |

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## Used in fields

- [`StructureItemGroup.parameter`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.StructureItemGroup/index.md#f-parameter): If there can be several items in the selected group type (e.g. user id's), the value is defined here.