---
id: "T:cAlgo.API.ChartVerticalLine"
kind: "interface"
namespace: "cAlgo.API"
url: "https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartVerticalLine/"
---

> Documentation index for agents: https://help.ctrader.com/ctrader-algo/llms.txt · machine index: https://help.ctrader.com/ctrader-algo/api.json

# ChartVerticalLine (interface)

Represents the Vertical Line chart object. The line parallel to the Y-axis that can be set on a certain time value on the X-axis.

Environments: Desktop supported · CLI works differently · Cloud works differently.

- CLI: Created and kept with all its properties, but never drawn: the CLI displays no chart.
- Cloud: Created and kept with all its properties, but never drawn: the cloud displays no chart.

## Definition

```csharp
public interface ChartVerticalLine
```

## Examples

C#:

```csharp
using cAlgo.API;

namespace cAlgo
{
    // This sample shows how to draw a vertical line on chart by using Chart.DrawVertical line method
    public partial class ChartVerticalLineSample : Indicator
    {
        protected override void Initialize()
        {
            var verticalLine = Chart.DrawVerticalLine("vertical_line", Chart.LastVisibleBarIndex, Color.Red, 2, LineStyle.DotsRare);

            verticalLine.IsInteractive = true;
        }

        public override void Calculate(int index)
        {
        }
    }
}
```

Python:

```python
import clr
clr.AddReference("cAlgo.API")

from cAlgo.API import *

class Test():
    def initialize(self):
        verticalLine = api.Chart.DrawVerticalLine("vertical_line", api.Chart.LastVisibleBarIndex, Color.Red, 2, LineStyle.DotsRare)
        verticalLine.IsInteractive = True
```

config.json:

```json
{
  "AccessRights": "None",
  "TimeZone": "UTC",
  "IsOverlay": true
}
```

## Properties

- `Color Color {get; set;}` — Gets or sets the line color. [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartVerticalLine/Color/index.md)
- `LineStyle LineStyle {get; set;}` — Gets or sets the line style. [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartVerticalLine/LineStyle/index.md)
- `int Thickness {get; set;}` — Gets or sets the line thickness. [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartVerticalLine/Thickness/index.md)
- `DateTime Time {get; set;}` — Gets or sets the value on the Time line. [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartVerticalLine/Time/index.md)

## Inherited members

- `string Name {get;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/Name/index.md)
- `string Comment {get; set;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/Comment/index.md)
- `ChartObjectType ObjectType {get;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/ObjectType/index.md)
- `bool IsInteractive {get; set;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/IsInteractive/index.md)
- `bool IsLocked {get; set;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/IsLocked/index.md)
- `bool IsHidden {get; set;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/IsHidden/index.md)
- `int ZIndex {get; set;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/ZIndex/index.md)
- `bool IsAlive {get;}` (from ChartObject) [details](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/ChartObject/IsAlive/index.md)