# Walls

Spread for ASP.NET allows you to customize charts by specifying border, fill effect, and width for walls. Learn more in documentation.

## Content

A wall is the area (or plane) behind, below, or to the side of a chart.
A wall can have a border, fill effect, or width (measured in model units). The wall can be visible or hidden. The axis grids (major and minor) and stripes are painted on the walls. The axis grid lines (major and minor) are painted over the axis stripes.
The following image displays a chart with back, bottom, and side walls.
![Chart with Walls](https://cdn.mescius.io/document-site-files/images/346c9178-0ed8-4fb9-908b-1565b22fb408/artwork/chartwalls.png)
See the following classes for more information on how to set properties for walls:

* [Wall](/spreadnet/api/latest/online-asp/FarPoint.Web.Chart/FarPoint.Web.Chart.Wall.html)
* [XYPlotArea](/spreadnet/api/latest/online-asp/FarPoint.Web.Chart/FarPoint.Web.Chart.XYPlotArea.html)

## Using Code

Use properties in the plot area classes to set options for the walls.

## Example

The following example sets properties for the wall.

```csharp
YPlotArea plotArea = new YPlotArea();
plotArea.BackWall.Visible = true;
```

```vbnet
Dim plotArea As New FarPoint.Web.Chart.YPlotArea()
plotArea.BackWall.Visible = True
```

## Using the Chart Designer

1. Select the **PlotArea Collection** editor.
2. Click the drop-down button on the right side of the **Add** button (lower, left side of dialog) to change the plot type.
3. Set the wall properties as needed.
4. Select **Apply** and **OK** to close the Chart Designer.