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url: /flow/guide/scripting-reference/classes/tstringlist.md
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# TStringList

## Declaration

`<custom> : TStringList`

## Description

The TStringList object is useful for storing a list of strings. Some properties of other classes return a TStringList object. You can create your own TStringList objects by declaring them in your map code.

Search for TStringList on Google to get further detailed information about this object.

### Usage

Among other things the following tasks can be achieved by working with a TStringList object

::: details Determine the number of strings in the list
You can return the number of strings currently in the list with MyStringList.Count
:::

::: details Add a string into the list
You can add strings to the list using MyStringList.Add('this is the string to add')
:::

::: details Read a string from the list
You can retrieve string from the list by providing the index of the string ie MyStringList\[i] where i is a number from 0 to MyStringList
:::

::: details Update a string in the list
You can update a string in the list with MyStringList\[i] := 'this is the new string value', where i is the index of the string to update being a number from 0 to MyStringList.Count-1
:::