Question

关于什么是错，有些失落了。我在C＃中有一个列表，试图在cshtml文件中的foreach循环中进行迭代。我的循环代码是：

debugger;
@foreach(CheckInWeb.Models.Geo.cGeoPoint item in ViewBag.Geometries)
{
    <text>
    var wkt = @item.Geometry;
    var feature = wktReader.readFeature(wkt);
    feature.getGeometry().transform('EPSG:4326', 'EPSG:3857');       
    feature.setStyle(new ol.style.Style({
        image: new ol.style.Icon({
            anchor: [0.5, 46], anchorXUnits: 'fraction', anchorYUnits: 'pixels', opacity: 1.0, scale: 0.5, src: '@Url.Content("~/images/Icons/marker.png")'
        })
    }));
    featureCollection.push(feature);
    </text>
}

浏览器中显示的行为var wkt = @item.Geometry;，浏览器控制台窗口中的错误为：Uncaught SyntaxError: missing ) after argument list

浏览器中呈现的脚本如下：

debugger;

    var wkt = POINT (69.059 34.5411);
    var feature = wktReader.readFeature(wkt);
    feature.getGeometry().transform('EPSG:4326', 'EPSG:3857');       
    feature.setStyle(new ol.style.Style({
        image: new ol.style.Icon({
            anchor: [0.5, 46], anchorXUnits: 'fraction', anchorYUnits: 'pixels', opacity: 1.0, scale: 0.5, src: '/images/Icons/marker.png'
        })
    }));
    featureCollection.push(feature);

由于@item.Geometry是一个字符串，因此我尝试将输入的变量包装在单引号和双引号中，并且保持不变。

有什么想法吗？

Answer 1

****最终解决方案*****

正如Stephen所建议的那样，首先转换为数组确实确实使它更容易：

var geometried = @Html.Raw(Json.Serialize(ViewBag.Geometries));
for (var i = 0; i < geometried.length; i++) {
    var feature = wktReader.readFeature(geometried[i].geometry);
    feature.getGeometry().transform('EPSG:4326', 'EPSG:3857');
    feature.setStyle(new ol.style.Style({
        image: new ol.style.Icon({
            anchor: [0.5, 46], anchorXUnits: 'fraction', anchorYUnits: 'pixels', opacity: 0.75, scale: 0.25, src: '@Url.Content("~/images/Icons/marker.png")'
        })
    }));
    featureCollection.push(feature);
}

OpenLayers和处理WKT几何的问题-ASP.NET MVC Core 2.1

1 个答案: