ExpandItem Action (Specific to GWT Tree and JavaFX TreeView Controls)

Applies to TestComplete 15.64, last modified on May 16, 2024
This method is not supported in web tests (including cross-platform web tests) that use XPath expressions and CSS selectors to locate web elements. This method can be only used in tests that locate web objects by using internal identification properties provided by TestComplete.


Depending on the Expand parameter, the ExpandItem action either expands or collapses the specified tree item.


TestObj.ExpandItem(Item, Expand)

TestObj A variable, parameter or expression that specifies a reference to one of the objects listed in the Applies To section
Item [in]    Required    Variant    
Expand [in]    Optional    Boolean Default value: True   
Result None

Applies To

The method is applied to the following objects:

View Mode

This method is available in the Object Browser panel and in other panels and dialogs in both Basic and Advanced view modes.


The method has the following parameters:


Specifies the desired item. You can enter the item’s index (from 0) or its caption. The caption can contain asterisk (*) or question mark (?) wildcards or regular expressions. The asterisk (*) corresponds to a string of any length (including an empty string), the question mark corresponds to any single character (including none). To specify more complicated parts of a caption, use regular expressions.

The caption can be case-sensitive or case-insensitive depending on the value of the Use case-sensitive parameters project setting.


Specifies whether to expand or collapse the tree item.

Result Value



If the specified item was not found, an error message is posted to the test log.

If the Expand parameter corresponds to the item's state (for example, the Expand parameter is True and the control’s item is already expanded), ExpandItem performs no action and posts an informative message to the test log.

See Also

CollapseItem Action (TreeView Controls)

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