# Delegate GetUsersWithIdentitiesAsyncDelegate

OptimaJet.Workflow.Core.Runtime.GetUsersWithIdentitiesAsyncDelegate

Asynchronous delegate used to retrieve [UserIdentity](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/UserIdentity/) associations between user names and application-defined workflow participant identities.

Namespace: [OptimaJet.Workflow.Core.Runtime](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/)

```csharp
public delegate Task<IEnumerable<UserIdentity>> GetUsersWithIdentitiesAsyncDelegate(string userName = null, SortDirection sortDirection = SortDirection.Asc, Paging paging = null)
```

## Parameters

| Name | Type | Description |
| --- | --- | --- |
| `userName` | `System.String` | Optional filter for <a href="https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/UserIdentity/">UserIdentity.UserName</a>. |
| `sortDirection` | `OptimaJet.Workflow.Core.Persistence.SortDirection` | The <a href="https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Persistence/SortDirection/">SortDirection</a> for returned users. |
| `paging` | `OptimaJet.Workflow.Core.Persistence.Paging` | Optional <a href="https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Persistence/Paging/">Paging.PageIndex</a> and <a href="https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Persistence/Paging/">Paging.PageSize</a> values. |

[Previous GetUserByIdentityAsyncDelegate](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/GetUserByIdentityAsyncDelegate/) [Next ICustomActivityProvider](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/ICustomActivityProvider/)