You can use the XPath Expression
builder preference page to specify whether you want your XPath expression
automatically evaluated as you type it.
About this task
To access the XPath expression builder preference page, follow
these steps:
Procedure
Click Window > Preferences > XML > XPath Builder. You can also launch it from the XPath expression
wizard by clicking the XPath builder preference page button .
Clear the Evaluate XPath while
typing check box if you do not want your XPath expression
automatically evaluated in the wizard while you are creating it.