Question

您好我从数据库获取客户位置以在谷歌地图中显示它代码工作正常但问题是如果最后一个客户位置列等于null，则地图不会加载并且剂量显示任何引脚

＆＃13;

<script type="text/javascript">
    var markerArray = [];
    window.onload = function () {

        var t = self.setTimeout(function () {

            var size = $('.LocationLabel').length;
            for (i = 0; i < size; i++) {
                var markers = { locationLatitude: "", locationLongitude: "", Cust_Name: "", Address: "" };
                var Location = $('.LocationLabel').eq(i).text();
                var CustName = $('.Cust_NameLabel').eq(i).text();
                var Address = $('.AddressLabel').eq(i).text();
                markers.locationLatitude = Location.split(',')[0];
                markers.locationLongitude = Location.split(',')[1];
                markers.Cust_Name = CustName;
                markers.Address = Address;
                markerArray.push(markers);

            }

            var mapOptions = {
                center: new google.maps.LatLng(markers.locationLatitude, markers.locationLongitude),
                zoom: 12,
                mapTypeId: google.maps.MapTypeId.ROADMAP
            };
            var infoWindow = new google.maps.InfoWindow();
            var map = new google.maps.Map(document.getElementById("dvMap"), mapOptions);
            for (i = 0; i < markerArray.length; i++) {
                var data = markerArray[i]
                var myLatlng = new google.maps.LatLng(data.locationLatitude, data.locationLongitude);
                var marker = new google.maps.Marker({
                    position: myLatlng,
                    map: map,
                    title: data.Cust_Name
                });
                (function (marker, data) {
                    google.maps.event.addListener(marker, "click", function (e) {
                        infoWindow.setContent(data.Address);
                        infoWindow.open(map, marker);
                    });
                })(marker, data);
            }
        }, 2000);
    }
</script>

＆＃13;

  <asp:Label ID="lbl_Location" CssClass="LocationLabel" runat="server" Text='<%#DataBinder.Eval(Container.DataItem, "Location")%>' />
            <asp:Label ID="lbl_CustName" CssClass="Cust_NameLabel" runat="server" Text='<%#DataBinder.Eval(Container.DataItem, "Cust_Name")%>' />
    <asp:Label ID="lbl_Address" CssClass="AddressLabel" runat="server" Text='<%#DataBinder.Eval(Container.DataItem, "Address")%>' />

markers data-source

if (!this.IsPostBack)
{
DataTable dt = this.GetData("select * from Customer");
rptMarkers.DataSource = dt;
rptMarkers.DataBind();
}

在地图问题上显示数据库中的位置

0 个答案: