# Undo Method

## Overloads

| [Undo()](https://help.qlik.com/en-US/sense-developer/May2026/Subsystems/NetSDKAPIref/Content/Qlik.Engine.App.Undo.htm#Qlik_Engine_App_Undo) |  | Undoes the previous operation. |
| --- | --- | --- |

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

## Undo()

Undoes the previous operation.

### Declaration

```

          public bool Undo()
    
  
```

### Returns

| Type | Description |
| --- | --- |
| System.Boolean |  |

### Implements

[IApp.Undo()](https://help.qlik.com/en-US/sense-developer/May2026/Subsystems/NetSDKAPIref/Content/Qlik.Engine.IApp.Undo.htm#Qlik_Engine_IApp_Undo)

### Remarks

The operation is successful if **qSuccess** is set to true.