private void request_Completed(object sender, RequestEventArgs e)
{
JsonObject jsonObject = (JsonObject)JsonObject.Parse(e.Result);
BufferResultSet result = BufferResultSet.FromJson(jsonObject);
LastResult = result;
BufferQueryEventArgs args = new BufferQueryEventArgs(result, e.Result, e.UserState);
OnProcessCompleted(args);
}
/// <summary>${iServer2_BufferQueryEventArgs_constructor_None_D}</summary>
public BufferQueryEventArgs(BufferResultSet resultSet, string originResult, object userToken)
: base(userToken)
{
BufferResultSet = resultSet;
OriginBufferResult = originResult;
}
internal static BufferResultSet FromJson(JsonObject jsonObject)
{
if (jsonObject == null)
{
return null;
}
BufferResultSet result = new BufferResultSet();
result.ResultSet = ResultSet.FromJson((JsonObject)jsonObject["resultSet"]);
ServerGeometry serverGeometry = ServerGeometry.FromJson((JsonObject)jsonObject["bufferGeometry"]);
if (serverGeometry != null)
{
result.BufferRegion = serverGeometry.ToGeoRegion();
}
return result;
}
// showResult 函数将查询结果在DataGrid控件和地图中显示
private void ShowResult(BufferResultSet result)
{
//显示或隐藏相关控件
DataStackPanel.Visibility = Visibility.Visible;
SchoolScroll.Visibility = Visibility.Collapsed;
dgSchool.Visibility = Visibility.Collapsed;
ResidentialScroll.Visibility = Visibility.Collapsed;
dgResidential.Visibility = Visibility.Collapsed;
dgRoad.Visibility = Visibility.Collapsed;
RoadScroll.Visibility = Visibility.Collapsed;
//结果为空
if (result == null || result.BufferRegion == null || result.ResultSet == null)
{
MessageBox.Show("No Result!");
return;
}
//遍历全部结果记录集
foreach (RecordSet item in result.ResultSet.RecordSets)
{
//获取“School@changchun”图层上查询的结果并进行显示
if (item.LayerName == SchoolLayerName)
{
SchoolScroll.Visibility = Visibility.Visible;
dgSchool.Visibility = Visibility.Visible;
List<SchoolData> listSchool = new List<SchoolData>();
//将记录集中的每条记录转换成矢量要素，对其进行遍历，并将矢量要素在地图和DataGrid控件中显示
foreach (Feature feature in item.ToFeatureSet())
{
featuresLayer.Features.Add(feature);
listSchool.Add(new SchoolData
{
SmID = feature.Attributes["SmID"].ToString(),
SmUserID = feature.Attributes["SmUserID"].ToString(),
name = feature.Attributes["name"].ToString(),
X = feature.Attributes["X"].ToString(),
Y = feature.Attributes["Y"].ToString(),
SmX = feature.Attributes["SmX"].ToString(),
SmY = feature.Attributes["SmY"].ToString()
});
}
dgSchool.ItemsSource = listSchool;
}
//获取"Railway@changchun"图层上查询的结果并进行显示
if (item.LayerName == RailLayerName)
{
RoadScroll.Visibility = Visibility.Visible;
dgRoad.Visibility = Visibility.Visible;
List<RoadData> listData = new List<RoadData>();
//将记录集中的每条记录转换成矢量要素，对其进行遍历，并将矢量要素在地图和DataGrid控件中显示
foreach (Feature feature in item.ToFeatureSet())
{
featuresLayer.Features.Add(feature);
listData.Add(new RoadData
{
SmID = feature.Attributes["SmID"].ToString(),
SmUserID = feature.Attributes["SmUserID"].ToString(),
Name = feature.Attributes["Name"].ToString(),
SmLength = feature.Attributes["SmLength"].ToString(),
});
}
dgRoad.ItemsSource = listData;
}
//获取"ResidentialArea@changchun"图层上查询的结果并进行显示
if (item.LayerName == ResidentialLayerName)
{
ResidentialScroll.Visibility = Visibility.Visible;
dgResidential.Visibility = Visibility.Visible;
List<ResidentialData> listResidential = new List<ResidentialData>();
//将记录集中的每条记录转换成矢量要素，对其进行遍历，并将矢量要素在地图和DataGrid控件中显示
foreach (Feature feature in item.ToFeatureSet())
{
featuresLayer.Features.Add(feature);
listResidential.Add(new ResidentialData
{
SmID = feature.Attributes["SmID"].ToString(),
SmUserID = feature.Attributes["SmUserID"].ToString(),
SmArea = feature.Attributes["SmArea"].ToString(),
SmPerimeter = feature.Attributes["SmPerimeter"].ToString(),
ClassID = feature.Attributes["ClassID"].ToString(),
});
}
dgResidential.ItemsSource = listResidential;
}
}
featuresLayer.AddFeature(new Feature
{
Geometry = result.BufferRegion,
Style = new PredefinedFillStyle
{
Fill = new SolidColorBrush
{
Color = Colors.Yellow,
Opacity = 0.5,
},
},
});
}
