# TrackBar

Namespace: **Wisej.Web**

Assembly: **Wisej.Framework** (3.0.0.0)

* [Control](/api/v3.0/wisej.web/general/control.md)
  * [TrackBar](/api/v3.0/wisej.web/editors/wisej.web.trackbar.md)

Enables the user to choose between a range of values by sliding a small bar along another bar.

{% tabs %}
{% tab title="C#" %}

```csharp
public class TrackBar : Control, ISupportInitialize
```

{% endtab %}

{% tab title="VB.NET" %}

```visual-basic
Public Class TrackBar
    Inherits Control
    Implements ISupportInitialize
```

{% endtab %}
{% endtabs %}

## Constructors

### ![](/files/uCY6T77rh488FWHzpJ6P)TrackBar()

Initializes a new instance of the [TrackBar](/api/v3.0/wisej.web/editors/wisej.web.trackbar.md) class.

## Properties

### ![](/files/uCY6T77rh488FWHzpJ6P)AutoSize

[Boolean](https://docs.microsoft.com/en-us/dotnet/api/system.boolean): Returns or sets whether the height or width of the track bar is being automatically sized.

### ![](/files/uCY6T77rh488FWHzpJ6P)LargeChange

[Int32](https://docs.microsoft.com/en-us/dotnet/api/system.int32): Returns or sets a value to be added to or subtracted from the [Value](#value) property when the scroll box is moved a large distance.

**Throws:**

* [ArgumentException](https://docs.microsoft.com/en-us/dotnet/api/system.argumentexception) The assigned value is less than 0.

### ![](/files/uCY6T77rh488FWHzpJ6P)Maximum

[Int32](https://docs.microsoft.com/en-us/dotnet/api/system.int32): Returns or sets the upper limit of the range this [TrackBar](/api/v3.0/wisej.web/editors/wisej.web.trackbar.md) is working with.

### ![](/files/uCY6T77rh488FWHzpJ6P)Minimum

[Int32](https://docs.microsoft.com/en-us/dotnet/api/system.int32): Returns or sets the lower limit of the range this [TrackBar](/api/v3.0/wisej.web/editors/wisej.web.trackbar.md) is working with.

### ![](/files/uCY6T77rh488FWHzpJ6P)Orientation

[Orientation](/api/v3.0/wisej.web/enumerations/wisej.web.orientation.md): Returns or sets a value indicating the horizontal or vertical orientation of the track bar.

### ![](/files/uCY6T77rh488FWHzpJ6P)ShowValue

[Boolean](https://docs.microsoft.com/en-us/dotnet/api/system.boolean): Returns or sets a flag indicating whether the value is displayed in a bubble control while the user is moving the knob.

The appearance key of the child bubble component is "bubble".

### ![](/files/uCY6T77rh488FWHzpJ6P)SmallChange

[Int32](https://docs.microsoft.com/en-us/dotnet/api/system.int32): Returns or sets the value added to or subtracted from the [Value](#value) property when the scroll box is moved a small distance.

### ![](/files/uCY6T77rh488FWHzpJ6P)TickFrequency

[Int32](https://docs.microsoft.com/en-us/dotnet/api/system.int32): Returns or sets a value that specifies the delta between ticks drawn on the control.

### ![](/files/uCY6T77rh488FWHzpJ6P)TickStyle

[TickStyle](/api/v3.0/wisej.web/enumerations/wisej.web.tickstyle.md): Returns or sets a value indicating how to display the tick marks on the track bar.

### ![](/files/uCY6T77rh488FWHzpJ6P)Value

[Int32](https://docs.microsoft.com/en-us/dotnet/api/system.int32): Returns or sets a numeric value that represents the current position of the scroll box on the track bar.

**Throws:**

* [ArgumentException](https://docs.microsoft.com/en-us/dotnet/api/system.argumentexception) The assigned value is less than the value of [Minimum](#minimum); or the assigned value is greater than the value of [Maximum](#maximum).

## Methods

### ![](/files/uCY6T77rh488FWHzpJ6P)SetRange(minValue, maxValue)

Sets the minimum and maximum values for a [TrackBar](/api/v3.0/wisej.web/editors/wisej.web.trackbar.md).

| Parameter    | Type                                                              | Description                                    |
| ------------ | ----------------------------------------------------------------- | ---------------------------------------------- |
| **minValue** | [Int32](https://docs.microsoft.com/en-us/dotnet/api/system.int32) | The lower limit of the range of the track bar. |
| **maxValue** | [Int32](https://docs.microsoft.com/en-us/dotnet/api/system.int32) | The upper limit of the range of the track bar. |

## Events

### ![](/files/uCY6T77rh488FWHzpJ6P)AutoSizeChanged

[EventHandler](https://docs.microsoft.com/en-us/dotnet/api/system.eventhandler) Fired when the value of the [AutoSize](#autosize) property changes.

### ![](/files/uCY6T77rh488FWHzpJ6P)Scroll

[EventHandler](https://docs.microsoft.com/en-us/dotnet/api/system.eventhandler) Fired when either a mouse or keyboard action moves the scroll box.

### ![](/files/uCY6T77rh488FWHzpJ6P)ValueChanged

[EventHandler](https://docs.microsoft.com/en-us/dotnet/api/system.eventhandler) Fired when the [Value](#value) property of a track bar changes, either by movement of the scroll box or by manipulation in code.

## Implements

| Name                                                                                   | Description                                                                                                                |
| -------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------- |
| [IBindableComponent](/api/v3.0/wisej.web/data-binding/wisej.web.ibindablecomponent.md) | Bindable components implement this interface.                                                                              |
| [IWisejComponent](/api/v3.0/wisej.core/interfaces/wisej.core.iwisejcomponent.md)       | All wisej components implement this interface.                                                                             |
| [IWisejControl](/api/v3.0/wisej.core/interfaces/wisej.core.iwisejcontrol.md)           | All wisej controls derived from the [Control](/api/v3.0/wisej.web/general/control.md) class must implement this interface. |
| [IWisejSerializable](/api/v3.0/wisej.core/interfaces/wisej.core.iwisejserializable.md) | Allows an object to serialize itself.                                                                                      |


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