AgentView.Wpf 0.2.1

AgentView.Wpf

Native WPF agent-conversation chat view — a WPF sibling of the Blazor package BlazorAgentView. Renders user / assistant / system / tool messages with collapsible tool-call cards, live-updating tool state, markdown (via Markdig), auto-scroll, and a dark theme by default (light theme included).

Usage

<Window xmlns:av="clr-namespace:AgentView.Wpf;assembly=AgentView.Wpf">
    <av:AgentChatView x:Name="Chat" />
</Window>

var messages = new ObservableCollection<ChatMessage>();
Chat.Options = new AgentChatOptions
{
    ShowTimestamps = true,
    EnableMarkdown = true,
    AutoScroll = true,
    ToolCallDisplay = ToolCallDisplayMode.Collapsible,
    Theme = "dark"
};
Chat.Messages = messages;

messages.Add(new ChatMessage { Role = MessageRole.User, Content = "Hi!", Timestamp = DateTimeOffset.Now });

// Tool correlation: append the card while the tool runs, then mutate it when the result arrives —
// the UI updates live.
var call = new ToolCall { ToolName = "Bash", Input = "ls -la", State = ToolState.Running };
var toolMessage = new ChatMessage { Role = MessageRole.Tool };
toolMessage.ToolCalls.Add(call);
messages.Add(toolMessage);
// later:
call.Output = "…";
call.State = ToolState.Success;

Theming

AgentChatOptions.Theme is "dark" (default) or "light". All colors resolve via DynamicResource against the keys in AgentViewResourceKeys — override any of them in your application, window, or directly on the AgentChatView to re-theme:

<Application.Resources>
    <SolidColorBrush x:Key="{x:Static av:AgentViewResourceKeys.AccentBrushKey}" Color="#FF8800" />
</Application.Resources>

The Blazor version's CssVariables dictionary does not carry over — use the resource keys above instead. The light palette ships as Themes/Light.xaml and can also be merged manually.

Notes

• Messages accepts any IEnumerable<ChatMessage>; use an ObservableCollection for streaming.
• Message content is selectable (read-only text boxes / rich text).
• Markdown: headings, emphasis, inline code, fenced code blocks (no syntax highlighting yet), nested lists, links, blockquotes, pipe tables, horizontal rules.
• Markdown rendering never throws: content that Markdig rejects — a long block of pipe-delimited lines keeps one nested inline per | — falls back to plain text for that message instead of reaching the dispatcher as an unhandled exception. Nesting past 64 levels is flattened to text rather than recursed over, and a FenceRenderer that throws falls back to the default code block.
• Build: dotnet build AgentView.slnx · test: dotnet test AgentView.slnx · demo: dotnet run --project samples/AgentView.Wpf.Demo.

License

MIT © 2026 Felix Klakow