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Editorial Team
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Asked: 2026-06-05T23:34:29+00:00

I am getting below exception in runtime, could anybody suggest what is wrong? Microsoft

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I am getting below exception in runtime, could anybody suggest what is wrong?

Microsoft JScript runtime error: Object expected

Exception is coming in very first line:

aspxAddHoverItems('tabMaster',[[['dxtcTabHover_Glass'],[''],['T0','T1','T2','T3'],['','T'],[[''],[''],[''],['']],['Img']],[['dxtcActiveTabHover_Glass'],[''],['AT0','AT1','AT2','AT3'],['','T'],[[''],[''],[''],['']],['Img']]]);

var dxo = new ASPxClientTabControl('tabMaster');
window['tabMaster'] = dxo;
dxo.uniqueID = 'ctl00$tabMaster';
dxo.RegisterServerEventAssigned(['TabClick']);
dxo.emptyHeight = true;
dxo.emptyWidth = true;
dxo.tabCount=4;
dxo.InlineInitialize();
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1 Answer

  1. Editorial Team

    aspxAddHoverItems is simply unrecognized as the error suggests. Be sure to include all necessary references and assemblies in your project.

    This may be just what you need: How to: Manually Register DevExpress Extensions to Start Using Them in an MVC Web Application

    Some additional reading: Google Search: aspxAddHoverItems is not defined

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