# SCROLLBAR

## Overview

The `SCROLLBAR` class implements `ISMScrollbar` and `IPrefixedConstantsObject` to provide constants related to scrollbars in a solution model. It includes a `getPrefix` method that returns the prefix `"SM_SCROLLBAR"` for identifying related constants and overrides the `toString` method to provide a descriptive name.

## Constants Summarized

| Type                                                                         | Name                                                                 | Summary                                                                                                           |
| ---------------------------------------------------------------------------- | -------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------- |
| [Number](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/number) | [HORIZONTAL\_SCROLLBAR\_ALWAYS](#horizontal_scrollbar_always)        | Used to set the horizontal scroll bar policy so that horizontal scrollbars are always displayed.                  |
| [Number](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/number) | [HORIZONTAL\_SCROLLBAR\_AS\_NEEDED](#horizontal_scrollbar_as_needed) | Used to set the horizontal scroll bar policy so that horizontal scrollbars are displayed only when needed.        |
| [Number](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/number) | [HORIZONTAL\_SCROLLBAR\_NEVER](#horizontal_scrollbar_never)          | Used to set the horizontal scroll bar policy so that horizontal scrollbars are never displayed.                   |
| [Number](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/number) | [SCROLLBARS\_WHEN\_NEEDED](#scrollbars_when_needed)                  | Used to set the horizontal and vertical scroll bar policy so that both scrollbars are displayed only when needed. |
| [Number](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/number) | [VERTICAL\_SCROLLBAR\_ALWAYS](#vertical_scrollbar_always)            | Used to set the vertical scroll bar policy so that vertical scrollbars are always displayed.                      |
| [Number](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/number) | [VERTICAL\_SCROLLBAR\_AS\_NEEDED](#vertical_scrollbar_as_needed)     | Used to set the vertical scroll bar policy so that vertical scrollbars are displayed only when needed.            |
| [Number](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/number) | [VERTICAL\_SCROLLBAR\_NEVER](#vertical_scrollbar_never)              | Used to set the vertical scroll bar policy so that vertical scrollbars are never displayed.                       |

## Constants Detailed

### HORIZONTAL\_SCROLLBAR\_ALWAYS

Used to set the horizontal scroll bar policy so that horizontal scrollbars are always displayed.

**Type**\
[Number](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/number)

**Sample**

```js
var alwaysScrollbars = form.newField('my_table_text', JSField.TEXT_AREA, 230, 10, 100, 100);
alwaysScrollbars.scrollbars = SM_SCROLLBAR.HORIZONTAL_SCROLLBAR_ALWAYS | SM_SCROLLBAR.VERTICAL_SCROLLBAR_ALWAYS;
```

### HORIZONTAL\_SCROLLBAR\_AS\_NEEDED

Used to set the horizontal scroll bar policy so that horizontal scrollbars are displayed only when needed.

**Type**\
[Number](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/number)

**Sample**

```js
var neededScrollbars = form.newField('my_table_text', JSField.TEXT_AREA, 120, 10, 100, 100);
neededScrollbars.scrollbars = SM_SCROLLBAR.HORIZONTAL_SCROLLBAR_AS_NEEDED | SM_SCROLLBAR.VERTICAL_SCROLLBAR_AS_NEEDED;
```

### HORIZONTAL\_SCROLLBAR\_NEVER

Used to set the horizontal scroll bar policy so that horizontal scrollbars are never displayed.

**Type**\
[Number](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/number)

**Sample**

```js
var noScrollbars = form.newField('my_table_text', JSField.TEXT_AREA, 10, 10, 100, 100);
noScrollbars.scrollbars = SM_SCROLLBAR.HORIZONTAL_SCROLLBAR_NEVER | SM_SCROLLBAR.VERTICAL_SCROLLBAR_NEVER;
```

### SCROLLBARS\_WHEN\_NEEDED

Used to set the horizontal and vertical scroll bar policy so that both scrollbars are displayed only when needed.

**Type**\
[Number](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/number)

**Sample**

```js
var neededScrollbars = form.newField('my_table_text', JSField.TEXT_AREA, 120, 10, 100, 100);
// This is the default option, but if you really want you can set it explicitly.
neededScrollbars.scrollbars = SM_SCROLLBAR.SCROLLBARS_WHEN_NEEDED;
```

### VERTICAL\_SCROLLBAR\_ALWAYS

Used to set the vertical scroll bar policy so that vertical scrollbars are always displayed.

**Type**\
[Number](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/number)

**Sample**

```js
var alwaysScrollbars = form.newField('my_table_text', JSField.TEXT_AREA, 230, 10, 100, 100);
alwaysScrollbars.scrollbars = SM_SCROLLBAR.HORIZONTAL_SCROLLBAR_ALWAYS | SM_SCROLLBAR.VERTICAL_SCROLLBAR_ALWAYS;
```

### VERTICAL\_SCROLLBAR\_AS\_NEEDED

Used to set the vertical scroll bar policy so that vertical scrollbars are displayed only when needed.

**Type**\
[Number](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/number)

**Sample**

```js
var neededScrollbars = form.newField('my_table_text', JSField.TEXT_AREA, 120, 10, 100, 100);
neededScrollbars.scrollbars = SM_SCROLLBAR.HORIZONTAL_SCROLLBAR_AS_NEEDED | SM_SCROLLBAR.VERTICAL_SCROLLBAR_AS_NEEDED;
```

### VERTICAL\_SCROLLBAR\_NEVER

Used to set the vertical scroll bar policy so that vertical scrollbars are never displayed.

**Type**\
[Number](https://docs.servoy.com/reference/servoycore/dev-api/js-lib/number)

**Sample**

```js
var noScrollbars = form.newField('my_table_text', JSField.TEXT_AREA, 10, 10, 100, 100);
noScrollbars.scrollbars = SM_SCROLLBAR.HORIZONTAL_SCROLLBAR_NEVER | SM_SCROLLBAR.VERTICAL_SCROLLBAR_NEVER;
```

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