# IteratePagesAsync Method

## Overloads

| [IteratePagesAsync(IEnumerable<NxPage>, Func<IEnumerable<NxPage>, IEnumerable<NxPage>>)](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.DataPager.IteratePagesAsync.htm#Qlik_Engine_DataPager_IteratePagesAsync_System_Collections_Generic_IEnumerable_Qlik_Engine_NxPage__System_Func_System_Collections_Generic_IEnumerable_Qlik_Engine_NxPage__System_Collections_Generic_IEnumerable_Qlik_Engine_NxPage___) |  | Iterates through pages by repeatedly applying the argument transform and returning the data.<br>Application is performed until an iteration moves all pages outside the edge of the table. |
| --- | --- | --- |
| [IteratePagesAsync(AsyncHandle, IEnumerable<NxPage>, Func<IEnumerable<NxPage>, IEnumerable<NxPage>>)](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.DataPager.IteratePagesAsync.htm#Qlik_Engine_DataPager_IteratePagesAsync_Qlik_Engine_AsyncHandle_System_Collections_Generic_IEnumerable_Qlik_Engine_NxPage__System_Func_System_Collections_Generic_IEnumerable_Qlik_Engine_NxPage__System_Collections_Generic_IEnumerable_Qlik_Engine_NxPage___) |  | Iterates through pages by repeatedly applying the argument transform and returning the data.<br>Application is performed until an iteration moves all pages outside the edge of the table. |

[](https://help.qlik.com/en-US/sense-developer/Subsystems/NetSDKAPIref/Content/Qlik.Engine.DataPager.IteratePagesAsync.htm) [](https://help.qlik.com/en-US/sense-developer/Subsystems/NetSDKAPIref/Content/Qlik.Engine.DataPager.IteratePagesAsync.htm)

## IteratePagesAsync(IEnumerable&lt;NxPage&gt;, Func&lt;IEnumerable&lt;NxPage&gt;, IEnumerable&lt;NxPage&gt;&gt;)

Iterates through pages by repeatedly applying the argument transform and returning the data. Application is performed until an iteration moves all pages outside the edge of the table.

### Declaration

```

          public IEnumerable<Task<IEnumerable<NxDataPage>>> IteratePagesAsync(IEnumerable<NxPage> initialPages, Func<IEnumerable<NxPage>, IEnumerable<NxPage>> pageTransform)
    
  
```

### Parameters

| Type | Name | Description |
| --- | --- | --- |
| System.Collections.Generic.IEnumerable&lt;[NxPage](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxPage.htm)&gt; | initialPages | The initial set of pages. |
| System.Func&lt;System.Collections.Generic.IEnumerable&lt;[NxPage](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxPage.htm)&gt;, System.Collections.Generic.IEnumerable&lt;[NxPage](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxPage.htm)&gt;&gt; | pageTransform | The transform to apply during iteration. |

### Returns

| Type | Description |
| --- | --- |
| System.Collections.Generic.IEnumerable&lt;System.Threading.Tasks.Task&lt;System.Collections.Generic.IEnumerable&lt;[NxDataPage](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxDataPage.htm)&gt;&gt;&gt; | The set of iteration result tasks. |

[](https://help.qlik.com/en-US/sense-developer/Subsystems/NetSDKAPIref/Content/Qlik.Engine.DataPager.IteratePagesAsync.htm) [](https://help.qlik.com/en-US/sense-developer/Subsystems/NetSDKAPIref/Content/Qlik.Engine.DataPager.IteratePagesAsync.htm)

## IteratePagesAsync(AsyncHandle, IEnumerable&lt;NxPage&gt;, Func&lt;IEnumerable&lt;NxPage&gt;, IEnumerable&lt;NxPage&gt;&gt;)

Iterates through pages by repeatedly applying the argument transform and returning the data. Application is performed until an iteration moves all pages outside the edge of the table.

### Declaration

```

          public IEnumerable<Task<IEnumerable<NxDataPage>>> IteratePagesAsync(AsyncHandle asyncHandle, IEnumerable<NxPage> initialPages, Func<IEnumerable<NxPage>, IEnumerable<NxPage>> pageTransform)
    
  
```

### Parameters

| Type | Name | Description |
| --- | --- | --- |
| [AsyncHandle](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.AsyncHandle.htm) | asyncHandle | The async handle. |
| System.Collections.Generic.IEnumerable&lt;[NxPage](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxPage.htm)&gt; | initialPages | The initial set of pages. |
| System.Func&lt;System.Collections.Generic.IEnumerable&lt;[NxPage](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxPage.htm)&gt;, System.Collections.Generic.IEnumerable&lt;[NxPage](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxPage.htm)&gt;&gt; | pageTransform | The transform to apply during iteration. |

### Returns

| Type | Description |
| --- | --- |
| System.Collections.Generic.IEnumerable&lt;System.Threading.Tasks.Task&lt;System.Collections.Generic.IEnumerable&lt;[NxDataPage](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxDataPage.htm)&gt;&gt;&gt; | The set of iteration result tasks. |