如何给id是javascript中的变量值 [英] How to give id is an variable value in javascript
问题描述
我想使用变量值作为id下拉绑定
我尝试过:
< asp:DropDownList ID =drp1runat =serverclass =btn btn-default form-controlonchange =selesectiondrop(this)>
< asp:DropDownList ID =drp2runat =serverclass =btn btn-default form-controlonchange =selesectiondrop(this)>
< script type = text / javascript>
google.setOnLoadCallback(loadsec);
function loadsec(){
// var obj = {};
// obj.sec = $ .trim($([id * = ddlsec])。val());
$ .ajax({
url:webmethod.aspx / Getsection,
//数据:JSON.stringify(obj),
dataType:json,
类型:POST,
contentType:application / json; charset = utf-8,
成功:函数(r){
var dr =drp;
for(vari = 0 ; i< 2; i ++)
{
drp = drp + i;
}
var ddlsection = $([id * = drp]);
ddlsection.empty()。append('< option selected =selectedvalue =0>选择< / option>' );
$ .each(rd,function(){
ddlsection.append($(< option>< / option>)。val(this ['Value'])。html(这['Text']));
});
},
错误:功能(XMLHttpRequest,textStatus,errorThrown){
alert('得到错误');
}
});
}
< / script>
.trim(
( [id * = ddlsec])。val());
.ajax({
url:webmethod.aspx / Getsection,
// data:JSON.stringify(obj),>
dataType:json,
类型:POST,
contentType:application / json; charset = utf-8,
成功:函数(r){
var dr =drp;
for(vari = 0 ; i< 2; i ++)
{
drp = drp + i;
}
var ddlsection =
i want to use variable value as an id dropdown bind
What I have tried:
<asp:DropDownList ID="drp1" runat="server" class="btn btn-default form-control" onchange="selesectiondrop(this)">
<asp:DropDownList ID="drp2" runat="server" class="btn btn-default form-control" onchange="selesectiondrop(this)">
<script type="text/javascript">
google.setOnLoadCallback(loadsec);
function loadsec() {
// var obj = {};
// obj.sec = $.trim($("[id*=ddlsec]").val());
$.ajax({
url: "webmethod.aspx/Getsection",
// data: JSON.stringify(obj),
dataType: "json",
type: "POST",
contentType: "application/json; charset=utf-8",
success: function(r) {
var dr="drp";
for(vari=0;i<2;i++)
{
drp=drp+i;
}
var ddlsection = $("[id*=drp]");
ddlsection.empty().append('<option selected="selected" value="0">Select</option>');
$.each(r.d, function() {
ddlsection.append($("<option></option>").val(this['Value']).html(this['Text']));
});
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
alert('Got an Error ');
}
});
}
</script>
.trim(
("[id*=ddlsec]").val());
.ajax({
url: "webmethod.aspx/Getsection",
// data: JSON.stringify(obj),
dataType: "json",
type: "POST",
contentType: "application/json; charset=utf-8",
success: function(r) {
var dr="drp";
for(vari=0;i<2;i++)
{
drp=drp+i;
}
var ddlsection =
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