---
title: "getNumListBoxItems"
canonical: "https://help.vicon.com/space/Shogun17/13536643/getNumListBoxItems"
format: markdown
---
# Description

Gets the number of items in the list box user control that is specified by `userControlID`.

## Functional area

User Window

# Command syntax

## Syntax

|  |
| --- |
| `getNumListBoxItems userControlID` |

### Arguments

| **Name** | **Type** | **Required** | **Comments** |
| --- | --- | --- | --- |
| `userControlId` | int | yes | ID of user control to operate on. |

### Flags

None

## Return value

integer 

> Macro (scroll-pagebreak)

## Examples

```plaintext
// Get the number of List Box User Control items 
int $windowId;
int $controlId;
int $numItems;
 
// First create a User Window to place the Control on
$windowId = `createWindow "MyWindow"`;
 
// Create the User Control on the Window. 
$controlId = `createListBox $windowId`;
 
// Add some items to the List Box.
addListBoxItem $controlId "Item 1";
addListBoxItem $controlId "Item 2";
addListBoxItem $controlId "Item 3";
 
// Get the number of items
$numItems = `getNumListBoxItems $controlId`;
print $numItems;
```

# Additional information

## Related commands

- [addListBoxItem](https://vicon-help.atlassian.net/wiki/spaces/Shogun17/pages/13537673)
- [createListBox](https://vicon-help.atlassian.net/wiki/spaces/Shogun17/pages/13537623)
- [deleteAllListBoxItems](https://vicon-help.atlassian.net/wiki/spaces/Shogun17/pages/13536447)
- [deleteListBoxItem](https://vicon-help.atlassian.net/wiki/spaces/Shogun17/pages/13536409)
- [findListBoxItem](https://vicon-help.atlassian.net/wiki/spaces/Shogun17/pages/13536467)
- [getListBoxItem](https://vicon-help.atlassian.net/wiki/spaces/Shogun17/pages/13536601)
- [getListBoxSelItems](https://vicon-help.atlassian.net/wiki/spaces/Shogun17/pages/13536599)
- [selectListBoxItem](https://vicon-help.atlassian.net/wiki/spaces/Shogun17/pages/13537216)
- [setListBoxHandler](https://vicon-help.atlassian.net/wiki/spaces/Shogun17/pages/13537158)