javascript - HtmlButton not running client side validation in IE11 -


i having odd issue web form using htmlbutton in asp.net. formatting reasons need use <button> construct fine, works in every other browser tested ie11.

<button id="cmdlogin" runat="server" onserverclick="cmdlogin_onserverclick" class="btn btn-more" validationgroup="login" causesvalidation="true">     login </button>

when place standard asp.net button control, works, client side validation run. difference can see between buttons onclick function asp.net injects:

if (typeof(page_clientvalidate) == 'function') page_clientvalidate('modallogin'); __dopostback('ctl00$scriptsfooterplaceholder$tdf971800010$cmdlogin','')

i know ie11 had issues __dopostback .net 4 on .net 4.51, don't think that. there no javascript errors can see stop (and standard button test guess client side script working) , in every other browser have tested (chrome, ff, safari, ie8, ie9, ie10) working, ie11.

anyone seen sort of issue?

i thought try , hijack click event in ie11 , see if manually force validation. turned out easier going through process code below, "fixes" ie11 issue:

   <script>    var isie11 = !!navigator.useragent.match(/trident.*rv\:11\./);    if (isie11) {        $('.btn').on('click', function (e) {            e.preventdefault();        });    }

the preventdefault it, odd allows client side validation work expected, i.e. gets caught without forcing postback (before client side stuff ignored , forms validated on postback), "fix" not stopping client side validation working.

note: not or advocate sniffing browser , version, in case ie11 has behavior , going more research after project out door. seems bug in ie11 .net , using htmlbutton construct may need patch microsoft.


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