如何在asp.net中从数据库填充关于Dropdownlist的选定值的jQuery自动完成文本框。我想根据下拉列表选择在自动完成中显示值。当我在下拉列表中选择值时,我的代码可以& #39; t调用网络服务我不知道我哪里做错了如何在dropdown selectindexchange事件中调用服务
var ddl = document.getElementById('<%=cmbSourceCode.ClientID %>');
$(function () {
$("[id$=txtCode]").autocomplete({
source: function (request, response) {
$.ajax({
url: '<%=ResolveUrl("xCreate_grn.aspx/GetSourceCode") %>',
data: "{ 'prefix': '" + request.term + "','code':'"+ddl.SelectedIndex+ "'}",
dataType: "json",
type: "POST",
contentType: "application/json; charset=utf-8",
success: function (data) {
response($.map(data.d, function (item) {
return {
label: item.split('-')[0],
val: item.split('-')[1]
}
}))
},
error: function (response) {
alert(response.responseText);
},
failure: function (response) {
alert(response.responseText);
}
});
},
minLength: 4,
focus:function(event,ui){
event.preventDefault();
this.value = ui.item.label;
}
});
});
答案 0 :(得分:0)
我解决了我的问题,我错误地传递了选定的下拉值,所以我的函数在我的代码中使用之后现在无法正常工作
$("[id$=txtCode]").autocomplete({
source: function (request, response) {
$.ajax({
url: '<%=ResolveUrl("xCreate_grn.aspx/GetSourceCode") %>',
data: "{ 'prefix': '" + request.term + "','code':'"+
$('select[id=cmbSourceCode]').val() + "'}",
dataType: "json",
type: "POST",
contentType: "application/json; charset=utf-8",
success: function (data) {
response($.map(data.d, function (item) {
return {
label: item.split('~')[0],
val: item.split('~')[1]
}
}))
},
error: function (response) {
alert(response.responseText);
},
failure: function (response) {
alert(response.responseText);
}
});
},
minLength: 4,
focus:function(event,ui){
event.preventDefault();
this.value = ui.item.label;
}
}
});
});