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# ExtendSelect Method (IListBox)

Selects additional items from the multi-selection list.

This method has multiple overloads.

In this topic:

## ExtendSelect (IListItem[]) Method

Selects additional items from the multi-selection list, by ListItem items.

Note: Supported in LeanFT versions 14.51 and later.

C# Syntax

                void ExtendSelect(
       params IListItem[] items
    )

Parameters

items

The items to add to the selection.

## ExtendSelect(UInt32[]) Method

Selects additional items from the multi-selection list, by item indices.

Note: Supported in LeanFT versions 14.51 and later.

C# Syntax

                void ExtendSelect(
       params uint[] itemIndices
    )

Parameters

itemIndices

The indices of the items to add to the selection.

## ExtendSelect(String[]) Method

Selects additional items from the multi-selection list, by name.

C# Syntax

                void ExtendSelect(
       params string[] items
    )

Parameters

items

The names of the items to add to the selection.