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[英]how to make the show function in an if else override the hide function permanently?
[英]How to show and hide from function if the data is empty it show the text else it dont?
嗨,我現在遇到了一些問題,如果用戶 select 從 ajax 的下拉列表中選擇一個類型,它會顯示給定的數據,如果用戶 select 不包含該類型的數據,它將如何顯示沒有數據記錄?
當我的 function 被調用時,我隱藏並顯示了一些新的更新,但是當 select 與可回收物品未找到任何修復時顯示為某種類型的錯誤?
$("#recyclable-type").change(function(){
var type = $(this).val();
//show only checkbox having the data-type attribute
if ($(this).val()!="" && $(this).val()!=null) {
// hide all checkbox
$("#checkbox").find("li").hide();
// filters by recyclable type
if($("#checkbox").find("li[data-type='" + type + "']").show()){
toggleRecord("noRecords");
}
} else {
$("#checkbox").find("li").show();
toggleRecord("success");
}
// console.log($(this).find("li[data-type='" + type + "']"));
})
function toggleRecord(state) {
// The 'No Records' section toggles in case there are no records to be found when using the filter functions
if (state=="success") {
// Hides when there's at least one record being displayed
$("#no-recyclable-records").hide();
}else if (state=="noRecords") {
$("#no-recyclable-records").show();
}
}
下面是 html 的片段
.container-body { border: 1px solid black; border-radius: 1px; margin-top: 20px; margin-left: 10px; } fieldset.Field { margin-top: 10px; padding: 0; height: 100%; } ul.checkbox { margin: 0; padding: 0; margin-left: 20px; list-style: none; } ul.checkbox li input { margin-right: .25em; }.container-body ul.checkbox li { float: left; min-width: 350px; } #no-recyclable-records { border: 1px solid rgb(0, 0, 0); padding: 5px; border: hidden; text-align: center; height: 120; justify-content: center; align-items: center;
<div class="container position"> <div class="row"> <label for="recyclable-type" class="col-form-label"> <b>Recyclable Type:</b> </label> <select id="recyclable-type" name="recyclable-type" class=" custom-select col-4"> <option selected value="">All</option> </select> </div> </div> <div class="container-body "> <fieldset class="Field"> <ul id="checkbox" class="checkbox"> </fieldset> </ul> <div id="no-recyclable-records"> <h4>No Recyclable Records Found</h4> </div> </div>
這是我的 ajax 代碼
$.ajax({
url: 'https://ecoexchange.dscloud.me:8090/api/get',
method:"GET",
},
success:function(data,textStatus,xhr) {
// console.log(data);
for (let i = 0;i<data.length;i++) {
$("#recyclable-type").append(
`
<option value = "${data[i]["RecyclableType"]}">${data[i]["RecyclableType"]}</option>
`
);
}
},
error:function(xhr,textStatus,err) {
console.log(err);
}
});
$.ajax( {
url: 'https://ecoexchange.dscloud.me:8090/api/get',
type: 'GET',
dataType: 'json',
headers:{
query: "RecyclableGet(0)",
// Gets the apikey from the sessionStorage
apikey: sessionStorage.getItem("apikey")
},
success: function(data) {
//console.log(data);
var html='';
$.each(data, function(key, value) {
var type = value.RecyclableType
//console.log(type)
html +='<li data-type="'+ type + '"><input type="checkbox" name="recyclable_id[]" value="'+value.RecyclableID+'"><label style="padding-left: 10px;">'+value.Name+'</label><br></li>';
//console.log(value)
});
$('#checkbox').html(html);
}
});
$("#recyclable-type").change(function(){
var type = $(this).val();
//show only checkbox having the data-type attribute
if ($(this).val()!="" && $(this).val()!=null) {
// hide all checkbox
$("#checkbox").find("li").hide();
// filters by recyclable type
$("#checkbox").find("li[data-type='" + type + "']").show();
} else {
$("#checkbox").find("li").show();
}
// console.log($(this).find("li[data-type='" + type + "']"));
})
這是我的 ajax 回復
[
{
"RecyclableID": 1,
"Name": "recyclable",
"RecyclableType": "test recyclable type"
},
{
"RecyclableID": 3,
"Name": "test recyclable 2",
"RecyclableType": "WASTE"
},
{
"RecyclableID": 129,
"Name": "test recyclable 4",
"RecyclableType": "test recyclable type"
},
{
"RecyclableID": 131,
"Name": "test recyclable 6",
"RecyclableType": "test recyclable type"
},
{
"RecyclableID": 132,
"Name": "test recyclable 7",
"RecyclableType": "test recyclable type"
},
{
"RecyclableID": 133,
"Name": "test recyclable 8",
"RecyclableType": "test recyclable type"
},
{
"RecyclableID": 134,
"Name": "test recyclable 34",
"RecyclableType": "WASTE"
},
{
"RecyclableID": 138,
"Name": "recyclable thing",
"RecyclableType": "WASTE"
},
{
"RecyclableID": 139,
"Name": "recyclable thing 2",
"RecyclableType": "Ewaste"
},
{
"RecyclableID": 153,
"Name": "test recyclable 10",
"RecyclableType": "Other"
},
{
"RecyclableID": 154,
"Name": "test recyclable 11",
"RecyclableType": "Ewaste"
},
{
"RecyclableID": 155,
"Name": "test recyclable 123",
"RecyclableType": "test recyclable type 2"
},
{
"RecyclableID": 159,
"Name": "some recyclable name",
"RecyclableType": "CC"
},
{
"RecyclableID": 161,
"Name": "some recyclable name 2",
"RecyclableType": "Ewaste"
},
{
"RecyclableID": 162,
"Name": "recyclable 2",
"RecyclableType": "test recyclable type 2"
},
{
"RecyclableID": 165,
"Name": "test recyclable 15",
"RecyclableType": "WASTE"
},
{
"RecyclableID": 166,
"Name": "test recyclable 18",
"RecyclableType": "testing type"
},
{
"RecyclableID": 167,
"Name": "some recyclable name 23",
"RecyclableType": "Ewaster"
},
{
"RecyclableID": 168,
"Name": "Lorem ipsum dolor sit amet, consectetur",
"RecyclableType": "test recyclable type"
},
{
"RecyclableID": 169,
"Name": "Copper",
"RecyclableType": "WASTE"
},
{
"RecyclableID": 170,
"Name": "Choking Bar",
"RecyclableType": "Ewaste"
},
{
"RecyclableID": 171,
"Name": "Cabinet",
"RecyclableType": "Other"
},
{
"RecyclableID": 172,
"Name": "Cash Box",
"RecyclableType": "WASTE"
},
{
"RecyclableID": 173,
"Name": "Copper Telephone Cable",
"RecyclableType": "Other"
},
{
"RecyclableID": 174,
"Name": "Rope",
"RecyclableType": "CC"
},
{
"RecyclableID": 175,
"Name": "Silver",
"RecyclableType": "test recyclable type"
}
]
因此,如果用戶 select Gold / Metal 我應該看到 No Recyclables Records Found 因為它沒有價值
我怎樣才能為它編寫我的代碼?
你的第一個AJAX在method
下有一個額外的方括號,你正在使用$('#recyclable-type').change(function(){});
兩次有兩種不同的行為,嘗試只使用一種,不要忘記用else if
語句而不是 else 提及所有記錄的情況,這應該可以工作
success: function(data) {
在這里,您必須讀取數據,如果長度為 0,則添加 li,其中沒有找到數據文本,否則執行您的項目列表...
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