需要根据条件隐藏选定的图元

Need to hide a selected element based on conditions

本文关键字:图元 隐藏 条件      更新时间:2023-09-26

我有带各种选项的下拉菜单

  • 新建
  • 进行中
  • 已订购
  • 未订购
  • 已完成
  • 已取消

我有一个表单,当状态为新时,我需要隐藏ETA行,然后为任何其他状态启用它。这就是我尝试的:

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 for 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 for priority changes
    reg = $('input[value="ctl00"]');
    high = $('input[value="ctl01"]');
    //Declaring current user using SPServices 
    user = $().SPServices.SPGetCurrentUser({
    fieldName: "Name",
    debug: false
    });
    //Declaring variables for 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();
    }
}

所以我尝试的方法是一开始隐藏它(因为新的是默认的),然后当它不是新的时,显示它。

编辑:我想我已经解决了这个问题,这是在@Richard帮助我的if语句和选择器之后我做的:

function setETA(){
    //Hide, Display and Disable ETA based on stages         
    if(sNew.is(":checked")){
        etaRow.hide();
    }else if (progress.is(":checked")){
        //do nothing, should be already showing
    }else{
        etaDate.attr("readonly","true").css('background-color','#F6F6F6');
        etaHour.attr("disabled","disabled");
        etaMinutes.attr("disabled","disabled");
    }
}

2可能性:

  • 显示=无
  • 删除选项

对于显示方法:http://jsfiddle.net/r7gLU/1/

// Hide the Option
var opt = $('option[value=New]');
opt.css('display','none');
if( opt.parent().val() == 'New' )
    opt.next().attr("selected", "selected");
// Show the Option
var opt = $('option[value=New]');
opt.css('display','');