Ajax - 如何填充隐藏字段？

Question

我是新来的阿贾克斯。我想在服务器上使用responseText填充窗体上的隐藏字段。我能够将HTML中的responseText显示为innerHTML。我只是不确定如何填充表单上的隐藏字段。任何建议将不胜感激！

:)

这里的JS：

function getLocation(locationrouting) 
    { 
    var getLocation= newXMLHttpRequest(); // sending request 
    getLocation.open("GET", "/PP?PAGE=GETLOCATIONNAME&ROUTINGNUM=" + locationrouting, false); 
    getLocation.send(null); // getting location 

    var dv = document.getElementById("location_div"); 
    var verifyUnfound() 

    if (getlocation.responseText === 'LOCATION NOT FOUND') 
    { 
     dv.style.color = "red"; 
    } 
     else 
    { 
     dv.style.color = "black"; 
    } 
    dv.innerHTML = getLocation.responseText; 
    } 

Answer 1

HTML：

<input type="hidden" id="someid" name="somename" value="somevalue"> 

JS：

var hiddenField = document.getElementById('someid'); 
hiddenField.value = <whatever>; 

则可以将功能更改为：

function getLocation(locationrouting) { 
    var getLocation= newXMLHttpRequest(); // sending request 
    getLocation.open("GET", "/PP?PAGE=GETLOCATIONNAME&ROUTINGNUM=" + locationrouting, false); 
    getLocation.send(null); // getting location 

    var dv = document.getElementById("location_div"); 
    var verifyUnfound(); 
    var hiddenField = document.getElementById('someid'); 

    if (getlocation . responseText === 'LOCATION NOT FOUND') { 
     dv.style.color = "red"; 
    } else { 
     dv.style.color = "black"; 
    } 
    dv.innerHTML = getLocation . responseText; 
    hiddenField.value = getLocation . responseText; 
} 

Answer 2

使用jQuery，它会设置值并更轻松地执行AJAX请求。

$("#something").attr("value", myvalue)