# GetOptionalAsync Method

## Overloads

| [GetOptionalAsync(IEnumerable<NxPage>)](https://help.qlik.com/en-US/sense-developer/May2026/Subsystems/NetSDKAPIref/Content/Qlik.Sense.Client.IAppField.GetOptionalAsync.htm#Qlik_Sense_Client_IAppField_GetOptionalAsync_System_Collections_Generic_IEnumerable_Qlik_Engine_NxPage__) |  | Get Optional data from specific pages asynchronously |
| --- | --- | --- |

[](https://help.qlik.com/en-US/sense-developer/Subsystems/NetSDKAPIref/Content/Qlik.Sense.Client.IAppField.GetOptionalAsync.htm) [](https://help.qlik.com/en-US/sense-developer/Subsystems/NetSDKAPIref/Content/Qlik.Sense.Client.IAppField.GetOptionalAsync.htm)

## GetOptionalAsync(IEnumerable&lt;NxPage&gt;)

Get Optional data from specific pages asynchronously

### Declaration

```

          Task<IEnumerable<NxDataPage>> GetOptionalAsync(IEnumerable<NxPage> pages)
    
  
```

### Parameters

| Type | Name | Description |
| --- | --- | --- |
| System.Collections.Generic.IEnumerable&lt;[NxPage](https://help.qlik.com/en-US/sense-developer/May2026/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxPage.htm)&gt; | pages | the pages to retrieve |

### Returns

| Type | Description |
| --- | --- |
| System.Threading.Tasks.Task&lt;System.Collections.Generic.IEnumerable&lt;[NxDataPage](https://help.qlik.com/en-US/sense-developer/May2026/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxDataPage.htm)&gt;&gt; | a Task that retrieves the data available in the pages requested |