phamdacloc Posted May 1, 2013 Share Posted May 1, 2013 Is there a way to check if the DOM property exist before accessing it? I'm getting error when trying to access a class which do not exist. In this example, I have a collection of anchor tags. Some anchor has className while some do not. When I loop, AutoIT throw an error on anchors which do not have className Code with error: Local $oTags = _IETagNameGetCollection($oResult, "A") For $tag in $oTags If $tag.className = "ABC" Then ; Do something EndIf Next I'm looking for something like this (or any other solution) Local $oTags = _IETagNameGetCollection($oResult, "A") For $tag in $oTags If $tag.isProperty(className) AND $tag.className = "ABC" Then ; Do something EndIf Next Thanks. Link to comment Share on other sites More sharing options...
water Posted May 1, 2013 Share Posted May 1, 2013 You could add a COM error handler and set @error if the property does not exist. phamdacloc 1 My UDFs and Tutorials: Spoiler UDFs: Active Directory (NEW 2024-07-28 - Version 1.6.3.0) - Download - General Help & Support - Example Scripts - Wiki ExcelChart (2017-07-21 - Version 0.4.0.1) - Download - General Help & Support - Example Scripts OutlookEX (2021-11-16 - Version 1.7.0.0) - Download - General Help & Support - Example Scripts - Wiki OutlookEX_GUI (2021-04-13 - Version 1.4.0.0) - Download Outlook Tools (2019-07-22 - Version 0.6.0.0) - Download - General Help & Support - Wiki PowerPoint (2021-08-31 - Version 1.5.0.0) - Download - General Help & Support - Example Scripts - Wiki Task Scheduler (2022-07-28 - Version 1.6.0.1) - Download - General Help & Support - Wiki Standard UDFs: Excel - Example Scripts - Wiki Word - Wiki Tutorials: ADO - Wiki WebDriver - Wiki Link to comment Share on other sites More sharing options...
DaleHohm Posted May 1, 2013 Share Posted May 1, 2013 _IEErrorHandlerRegister() makes this easy. Or use the latest beta that makes COM errors non-fatal. Dale phamdacloc 1 Free Internet Tools: DebugBar, AutoIt IE Builder, HTTP UDF, MODIV2, IE Developer Toolbar, IEDocMon, Fiddler, HTML Validator, WGet, curl MSDN docs: InternetExplorer Object, Document Object, Overviews and Tutorials, DHTML Objects, DHTML Events, WinHttpRequest, XmlHttpRequest, Cross-Frame Scripting, Office object model Automate input type=file (Related) Alternative to _IECreateEmbedded? better: _IECreatePseudoEmbedded Better Better? IE.au3 issues with Vista - Workarounds SciTe Debug mode - it's magic: #AutoIt3Wrapper_run_debug_mode=Y Doesn't work needs to be ripped out of the troubleshooting lexicon. It means that what you tried did not produce the results you expected. It begs the questions 1) what did you try?, 2) what did you expect? and 3) what happened instead? Reproducer: a small (the smallest?) piece of stand-alone code that demonstrates your trouble Link to comment Share on other sites More sharing options...
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