function getDataByID(id) {
var sValue = "";
alert("1");
$.ajax({
type: 'GET',
url: 'API url',
data: { id: id },
dataType: "json",
beforeSend: function () {
},
success: function (data) {
console.log(data);
if (data.Data.length > 0) {
sValue = data.Data[0].Name.toString();
alert("2");
}
}
})
alert("3");
return sValue;
}
ajax為非同步, alert顯示方式會是 1 -> 3 ->2
加入async: false 至ajax中, alert 顯示方式即為 1 -> 2 ->3
.......
$ajax{
async: false,
....
Friday, April 27, 2018
javascript 取得 select option 複選值
需求:
有二個Selector selectA & selectB, selectB的值是根據selectA所產生, 且selectA為複選
<div>
<select class="selectpicker" id="city" onchange="getUserSelect()" title="Multiple Selector" data-actions-box="true" data-live-search="true" multiple></select>
</div>
//get user option on selectA
function getUserSelect() {
var selectCity = $('#city').val();
var scity = "";
if (!selectCity) {
alert("No");
} else {
for (var i = 0; i < selectCity.length; i++) {
scity = scity + selectCity[i];
}
}
//call selectB function.
}
有二個Selector selectA & selectB, selectB的值是根據selectA所產生, 且selectA為複選
<div>
<select class="selectpicker" id="city" onchange="getUserSelect()" title="Multiple Selector" data-actions-box="true" data-live-search="true" multiple></select>
</div>
//get user option on selectA
function getUserSelect() {
var selectCity = $('#city').val();
var scity = "";
if (!selectCity) {
alert("No");
} else {
for (var i = 0; i < selectCity.length; i++) {
scity = scity + selectCity[i];
}
}
//call selectB function.
}
Thursday, April 19, 2018
javascript 網址間相互傳值
A網址URL : localhost/test/newOpen.aspx?A=TestingA&B=TestingB&C=TestingC
需求: 取得A網址中Request("C")的值, 並以javascript帶入B網址中
預期 B網址URL : localhost/test/editOpen.aspx?editA=editA&C=TestingC
解法:
前端藏欄位 -> 後端取值 -> 丟回前端, 串回URL
Client端:
<input id="getC" type="hidden" runat="server" />
Server端:
getC.Value=Request("C")
Javascript部份:
window.open("URL?&C=" + document.getElementById('getC').value + "");
Subscribe to:
Posts (Atom)