# ResourceDependencyDiscoveryOptions

- Kind: `class`
- Package: [Aspire.Hosting](/reference/api/csharp/aspire.hosting.md)
- Version: `13.3.0`
- Namespace: `Aspire.Hosting.ApplicationModel`
- Target framework: `net8.0`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/bd20f904cde09ecb9c9ae5116a6f13614bf2d7c2/src/Aspire.Hosting/ApplicationModel/ResourceDependencyDiscoveryOptions.cs)

Changes how resource dependencies are discovered.

## Definition

```csharp
namespace Aspire.Hosting.ApplicationModel;

public sealed class ResourceDependencyDiscoveryOptions
{
    // ...
}
```

## Constructors

- [ResourceDependencyDiscoveryOptions](/reference/api/csharp/aspire.hosting/resourcedependencydiscoveryoptions/constructors.md#constructor)

## Properties

- [CacheAnnotationCallbackResults](/reference/api/csharp/aspire.hosting/resourcedependencydiscoveryoptions/properties.md#cacheannotationcallbackresults) : `bool` `get; init` -- When true, unresolved values from annotation callbacks will be cached and reused on subsequent evaluations of the same annotation, rather than re-evaluating the callback each time.
- [DiscoveryMode](/reference/api/csharp/aspire.hosting/resourcedependencydiscoveryoptions/properties.md#discoverymode) : [ResourceDependencyDiscoveryMode](/reference/api/csharp/aspire.hosting/resourcedependencydiscoverymode.md) `get; init` -- Sets the mode for discovering resource dependencies. See [ResourceDependencyDiscoveryMode](/reference/api/csharp/aspire.hosting/resourcedependencydiscoverymode.md) for details on the available modes.