# Heatmap.Export method

Renders the grid of cells into an off-screen bitmap.

**Namespace:** [`Eremex.AvaloniaUI.Charts`](../index.md)  
**Assembly:** `Eremex.Avalonia.Charts.dll`  
**NuGet Package:** [Eremex.Avalonia.Controls](https://www.nuget.org/packages/Eremex.Avalonia.Controls)

## Declaration

```csharp
public WriteableBitmap? Export()
```

## Returns

| type | description |
| --- | --- |
| `WriteableBitmap?` | A bitmap holding the rendered grid, or `null` if the grid has not been drawn yet. |

## Remarks

Pending data adapter updates are processed before the bitmap is created.

## See Also

* class [Heatmap](../Heatmap.md)
* namespace [Eremex.AvaloniaUI.Charts](../index.md)

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