# GetComponentData

> Gets the value of a component for an entity.

## Definition

* **Type:** Method
* **Namespace:** [Unity.Entities](/engine/7000.0/script-reference/unity/entities.md)
* **Assembly:** UnityEngine.EntitiesModule

## GetComponentData\<T>(Entity)

Gets the value of a component for an entity.

```csharp
public T GetComponentData<T>(Entity entity) where T : unmanaged, IComponentData
```

### Parameters

**** (\[Entity]\(/engine/7000.0/script-reference/unity/entities/entity)): The entity.

### Returns

| Type | Description                                        |
| ---- | -------------------------------------------------- |
| T    | A struct of type T containing the component value. |

## GetComponentData\<T>(SystemHandle)

Gets the value of a component for an entity associated with a system.

```csharp
public T GetComponentData<T>(SystemHandle system) where T : unmanaged, IComponentData
```

### Parameters

**** (\[SystemHandle]\(/engine/7000.0/script-reference/unity/entities/systemhandle)): The system handle.

### Returns

| Type | Description                                        |
| ---- | -------------------------------------------------- |
| T    | A struct of type T containing the component value. |