# Using an UnBound Data Source

Learn how to use unbound data sources for chart control in C# and Visual Basic with examples.

## Content

You can use the chart in an unbound state without binding it to the data source. In such case, add double values to the chart control without using a datasource.

## Example

The following example demonstrates adding unbound data to the control.

```csharp
BarSeries series = new BarSeries();
series.Values.Add(2.0);
series.Values.Add(4.0);
series.Values.Add(3.0);
series.Values.Add(5.0);
```

```vbnet
Dim series As New BarSeries()
series.Values.Add(2.0)
series.Values.Add(4.0)
series.Values.Add(3.0)
series.Values.Add(5.0)
```

## Using Chart Designer

1. Run the **Chart Designer.**
2. Select the target **Chart Model** from the tree menu on the left.
3. Open the **Plot Area Collection Editor** from **Plot Area** in the **Other** section of the property list on the right.
4. Open the **Series Collection Editor** from Series in the **Data** section.
5. Open the **Value Collection Editor** from Values in the **Data** section.
6. Set the values as required.

> !type=note
> **Note:** For information on starting [Chart Designer](/spreadnet/docs/latest/online-win/overview/spwin-designerguide), refer to Chart Designer in the [SPREAD Designer Guide](/spreadnet/docs/latest/online-win/overview/spwin-designerguide/fpchart-chartdesigner).

## See Also

[Using a Bound Data Source](/spreadnet/docs/latest/online-win/overview/spwin-devguide/fpchart-devguide/fpchart-chartcreate/fpchart-chartdata/fpchart-data-bound)
[Binding with cell range](/spreadnet/docs/latest/online-win/overview/spwin-devguide/fpchart-devguide/fpchart-chartcreate/fpchart-chartdata/spwin-sheet-chartbind)