Files
agent-framework/dotnet
5aa05ebe29 .NET: Add File Search Sample for Foundry Agents. (#3990)
* .NET: Add File Search sample #3674

* Add FileSearch sample to solution and parent README

- Add FoundryAgents_Step18_FileSearch to agent-framework-dotnet.slnx
- Add FileSearch entry to FoundryAgents samples table in README.md
- Fix README inaccuracy: sample creates one agent, not two

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Refactor FileSearch sample: local functions + DefaultAzureCredential

- Refactor agent creation into switchable local functions
- Use DefaultAzureCredential with WARNING comment (matching other samples)
- Update README to reference DefaultAzureCredential

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix orphaned temp file in FileSearch sample

Use Path.Combine + Path.GetRandomFileName instead of Path.GetTempFileName
to avoid leaving an orphaned temp file on disk.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-02-19 10:36:43 +00:00
..
2026-02-12 15:37:17 +00:00
2025-11-22 04:14:15 +00:00

Get Started with Microsoft Agent Framework for C# Developers

Samples

Quickstart

Basic Agent - .NET

using System;
using Azure.AI.OpenAI;
using Azure.Identity;
using Microsoft.Agents.AI;

var endpoint = Environment.GetEnvironmentVariable("AZURE_OPENAI_ENDPOINT")!;
var deploymentName = Environment.GetEnvironmentVariable("AZURE_OPENAI_DEPLOYMENT_NAME")!;

var agent = new AzureOpenAIClient(new Uri(endpoint), new AzureCliCredential())
    .GetOpenAIResponseClient(deploymentName)
    .AsAIAgent(name: "HaikuBot", instructions: "You are an upbeat assistant that writes beautifully.");

Console.WriteLine(await agent.RunAsync("Write a haiku about Microsoft Agent Framework."));

Examples & Samples

Agent Framework Documentation