1# Streaming — C#
2 
3## Streaming
4 
5```csharp
6using Anthropic.Models.Messages;
7 
8var parameters = new MessageCreateParams
9{
10    Model = Model.ClaudeOpus4_8,
11    MaxTokens = 64000,
12    Messages = [new() { Role = Role.User, Content = "Write a haiku" }]
13};
14 
15await foreach (RawMessageStreamEvent streamEvent in client.Messages.CreateStreaming(parameters))
16{
17    if (streamEvent.TryPickContentBlockDelta(out var delta) &&
18        delta.Delta.TryPickText(out var text))
19    {
20        Console.Write(text.Text);
21    }
22}
23```
24 
25**`RawMessageStreamEvent` TryPick methods** (naming drops the `Message`/`Raw` prefix): `TryPickStart`, `TryPickDelta`, `TryPickStop`, `TryPickContentBlockStart`, `TryPickContentBlockDelta`, `TryPickContentBlockStop`. There is no `TryPickMessageStop` — use `TryPickStop`.
26 
27---
28 
29