# Sandbox.Network.GameNetworkSystem.AddHandler

## Overload 1

```csharp
void AddHandler(System.Action`3<T,Connection,System.Guid> handler)
```

### Parameters

- `handler` (`System.Action`3<T,Connection,System.Guid>`)

## Overload 2

```csharp
void AddHandler(System.Func`4<T,Connection,System.Guid,System.Threading.Tasks.Task> handler)
```

### Parameters

- `handler` (`System.Func`4<T,Connection,System.Guid,System.Threading.Tasks.Task>`)

## Overload 3

```csharp
void AddHandler(System.Action<T,Connection> handler)
```

### Parameters

- `handler` (`System.Action<T,Connection>`)

Declared in [Sandbox.Network.GameNetworkSystem](/api/Sandbox.Network.GameNetworkSystem).
Assembly: `Sandbox.Engine`.