javascript - Need to hide a selected element based on conditions -

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i have drop down menu various options

  • new
  • in progress
  • ordered
  • not ordered
  • completed
  • cancelled

i have form need hide eta row when status new, enable other status. tried:

var progress, ordered, unordered, completed, cancelled, reg, high, user, trimuser, etadate, etarow, etahour, etaminutes;  function initiate() {     //declaring necessary variables     declaration() }  function declaration(){     //declaration of variables status changes     snew = $("option[value='new']");     progress = $("option[value='in progress']");     ordered = $("option[value='ordered']");     unordered = $("option[value='unordered']");     completed = $("option[value='completed']");     cancelled = $("option[value='cancelled']");      //declaring variables priority changes     reg = $('input[value="ctl00"]');     high = $('input[value="ctl01"]');      //declaring current user using spservices      user = $().spservices.spgetcurrentuser({     fieldname: "name",     debug: false     });      //declaring variables eta field manipulation     etarow = $("nobr").filter(function () { return $.trim(this.childnodes[0].nodevalue) === "eta"; }).closest("tr");     etadate = $('input[title="eta"]');     etahour = $("[id$=datetimefielddatehours]");     etaminutes = $("[id$=datetimefielddateminutes]");  }  function hideeta(){     //hide eta options     etarow.hide();      if(snew.not(:checked)){         alert('cp1');         eta.show();     } }

so way tried hiding (because new default), when it's new, show it.

edit: think have solved, how did after @richard if statement , selectors: 

function seteta(){     //hide, display , disable eta based on stages              if(snew.is(":checked")){         etarow.hide();     }else if (progress.is(":checked")){         //do nothing, should showing     }else{         etadate.attr("readonly","true").css('background-color','#f6f6f6');         etahour.attr("disabled","disabled");         etaminutes.attr("disabled","disabled");     } }

2 possibility:

  • display = none
  • remove option

for display method: http://jsfiddle.net/r7glu/1/

// hide option var opt = $('option[value=new]'); opt.css('display','none'); if( opt.parent().val() == 'new' )     opt.next().attr("selected", "selected");  // show option var opt = $('option[value=new]'); opt.css('display','');

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