我在应用程序中使用谷歌地图。方案是，当用户单击文本框时，将出现一个模式窗口，其中谷歌地图必须与搜索框一起显示。请注意它没有模态工作正常。但是当我使用bootstrap模式时，现在谷歌地图显示正常，但搜索框
1）搜索框自动完成功能不起作用。 （但没有模态工作）
2）当用户取消模型窗口并重新打开它时，SearchBox消失，出现javascript错误＆＃34;无法读取属性＆＃39;值＆＃39;新T6中的null（places_impl.js：10）＆＃34;
以下是我的完整代码。任何人都可以诊断出这个问题吗？
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="GoogleMap.aspx.cs" Inherits="WingtipToys.GoogleMap" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Places Searchbox</title>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<!-- Latest compiled JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<style>
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
#description {
font-family: Roboto;
font-size: 15px;
font-weight: 300;
}
#infowindow-content .title {
font-weight: bold;
}
#infowindow-content {
display: none;
}
#map #infowindow-content {
display: inline;
}
.pac-card {
margin: 10px 10px 0 0;
border-radius: 2px 0 0 2px;
box-sizing: border-box;
-moz-box-sizing: border-box;
outline: none;
box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
background-color: #fff;
font-family: Roboto;
}
#pac-container {
padding-bottom: 12px;
margin-right: 12px;
}
.pac-controls {
display: inline-block;
padding: 5px 11px;
}
.pac-controls label {
font-family: Roboto;
font-size: 13px;
font-weight: 300;
}
#pac-input {
background-color: #fff;
font-family: Roboto;
font-size: 15px;
font-weight: 300;
margin-left: 12px;
padding: 0 11px 0 13px;
text-overflow: ellipsis;
width: 400px;
}
#pac-input:focus {
border-color: #4d90fe;
}
#title {
color: #fff;
background-color: #4d90fe;
font-size: 25px;
font-weight: 500;
padding: 6px 12px;
}
#target {
width: 345px;
}
</style>
</head>
<body>
<form id="Form1" runat="server">
<label>Position</label>
<div class="input-group firearms-popup footableModel" data-toggle="modal" data-target="#position-model">
<asp:TextBox ID="Position" runat="server" CssClass="form-control" ></asp:TextBox>
<div class="input-group-addon">
<i class="fa fa-location-arrow"></i>
</div>
</div>
<!-- Position model -->
<div class="modal fade" id="position-model" TabIndex="-1" role="dialog">
<!-- Model 1 -->
<div class="modal-dialog firearms-model-width eservices-model-box-data css-fade" role="document">
<div class="modal-content eservices-model-box-content">
<div class="modal-header eservices-model-box-header">
<div class="col-md-12">
<button type="button" class="close eservices-model-box-closed" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
<h4 class="modal-title eservices-model-box-data-title">SelectPosition</h4>
</div>
</div>
<div class="modal-body eservices-model-box-body">
<div class="row m-zero hide-label map-model">
<input id="pac-input" class="controls" type="text" placeholder="Search Box">
<!-- <div id="gooleMapCordinates" style="width: 100%; height: 300px;"></div> -->
<div id="map" style="width: 100%; height: 300px;"></div>
<script>
function LoadMap() {
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 12,
center: { lat: 25.248158, lng: 55.371863 },
mapTypeId: google.maps.MapTypeId.ROADMAP
});
google.maps.event.addListener(map, "click", function (event) {
var lat = event.latLng.lat();
var lng = event.latLng.lng();
// populate yor box/field with lat, lng
$("#selectedLocation").text(lat + ";" + lng);
});
// Create the search box and link it to the UI element.
var input = document.getElementById('pac-input');
var searchBox = new google.maps.places.SearchBox(input);
map.controls[google.maps.ControlPosition.TOP_LEFT].push(input);
// Bias the SearchBox results towards current map's viewport.
map.addListener('bounds_changed', function () {
searchBox.setBounds(map.getBounds());
});
var markers = [];
// Listen for the event fired when the user selects a prediction and retrieve
// more details for that place.
searchBox.addListener('places_changed', function () {
var places = searchBox.getPlaces();
if (places.length == 0) {
return;
}
// Clear out the old markers.
markers.forEach(function (marker) {
marker.setMap(null);
});
markers = [];
// For each place, get the icon, name and location.
var bounds = new google.maps.LatLngBounds();
places.forEach(function (place) {
if (!place.geometry) {
console.log("Returned place contains no geometry");
return;
}
var icon = {
url: place.icon,
size: new google.maps.Size(71, 71),
origin: new google.maps.Point(0, 0),
anchor: new google.maps.Point(17, 34),
scaledSize: new google.maps.Size(25, 25)
};
// Create a marker for each place.
markers.push(new google.maps.Marker({
map: map,
icon: icon,
title: place.name,
position: place.geometry.location
}));
if (place.geometry.viewport) {
// Only geocodes have viewport.
bounds.union(place.geometry.viewport);
} else {
bounds.extend(place.geometry.location);
}
});
map.fitBounds(bounds);
});
}
function setCordinates() {
var positionTextbox = $("#<%= Position.ClientID %>");
positionTextbox.val($("#selectedLocation").text());
reValidate(positionTextbox);
}
</script>
<script src='https://maps.googleapis.com/maps/api/js?language="en"&key=MyGoogleKey&libraries=places' async defer>
</script>
</div>
</div>
<div class="modal-footer eservices-model-box-footer">
<div class="col-sm-7">
<strong id="selectedLocation"></strong>
</div>
<div class="col-sm-5">
<button type="button" class="btn eservices-model-box-data-btn btn-grey" data-dismiss="modal">Cancel</button>
<button type="button" class="btn eservices-model-box-data-btn btn-green" data-dismiss="modal" onclick="javascript: setCordinates();">AddPosition</button>
</div>
</div>
</div>
</div>
<!--/ Model 1 -->
</div>
<!--/ Position model -->
</form>
<script>
$(document).ready(function () {
$("#position-model").on("shown.bs.modal", function () {
LoadMap();
});
});
</script>
</body>
</html>
以下是我们重新打开模态窗口时出现的完整javascript错误。
Uncaught TypeError: Cannot read property 'value' of null
at new T6 (places_impl.js:10)
at Object.g7.j (places_impl.js:31)
at ix.<anonymous> (js?language="en"&key=AIzaSyA1lkktOc_Efhalgu55QcoZGXNTxbXxhUg&libraries=places:141)
at Object._.G (js?language="en"&key=AIzaSyA1lkktOc_Efhalgu55QcoZGXNTxbXxhUg&libraries=places:46)
at new ix (js?language="en"&key=AIzaSyA1lkktOc_Efhalgu55QcoZGXNTxbXxhUg&libraries=places:141)
at LoadMap (GoogleMap.aspx:161)
at HTMLDivElement.<anonymous> (GoogleMap.aspx:255)
at HTMLDivElement.dispatch (jquery.min.js:3)
at HTMLDivElement.q.handle (jquery.min.js:3)
at Object.trigger (jquery.min.js:4)
答案 0 :(得分：5)
我所做的是在打开模态时触发init函数（这将有助于在不需要时加载地图）。 搜索框自动完成可能正常，将pac-container类的z-index设置为一个非常高的值。 style属性应该是这样的：
.pac-container { z-index: 100000 !important; }
它会将您的下拉列表放在前面。