ArcGIS API for Silverlight如何调用GP服务、渲染

    调GP服务，并对缓冲的结果进行渲染，将渲染的结果用listbox进行绑定，选定某结果进行zoomto,先看代码好了

    GP服务（对地图上特定地块缓冲附近的地快）是在点击button事件下发生的。

   

这是该GP服务的相关属性

关于怎么调这个GP服务，请看代码：

              //调GP
               FeatureSet fs = new FeatureSet();
                fs.Features.Add(blocks[0].Graphic);
                Geoprocessor geoprocessorTask = new Geoprocessor("GP服务地址");
                List<GPParameter> parameters = new List<GPParameter>();
                parameters.Add(new GPFeatureRecordSetLayer("Input_Features", fs));
                geoprocessorTask.OutputSpatialReference = this.Map.SpatialReference;
                geoprocessorTask.StatusUpdated += new EventHandler<JobInfoEventArgs>(geoprocessorTask_StatusUpdated);
                geoprocessorTask.SubmitJobAsync(parameters);
                geoprocessorTask.JobCompleted += (o, e1) =>
                {
                    List<Graphic> bufferGraphics = new List<Graphic>();
                    geoprocessorTask.GetResultDataCompleted += (s1, ev1) =>
                    {
                        GraphicsLayer layer = new GraphicsLayer();
                        layer.ClearGraphics();
                        //layer.Renderer = LayoutRoot.Resources["MyUniqueValueRenderer"] as IRenderer;
                        switch (ev1.Parameter.Name)
                        {
                            case "BufferNzy":
                                GPFeatureRecordSetLayer bufferNZY = ev1.Parameter as GPFeatureRecordSetLayer;
                                geoprocessorTask.GetResultDataAsync(e1.JobInfo.JobId, "BufferGd");
                                foreach (Graphic g1 in bufferNZY.FeatureSet.Features)
                                {
                                    //渲染
                                          g1.Symbol = LayoutRoot.Resources["BufferNzySymbol"] as Symbol;
                                    layer.Graphics.Add(g1);
                                    string d = bufferNZY.FeatureSet.ToJson();
                                    MessageBox.Show(d);
                                }
                                bufferGraphics.AddRange(bufferNZY.FeatureSet.Features);
                                break;
                            case "BufferGd":
                                GPFeatureRecordSetLayer bufferGD = ev1.Parameter as GPFeatureRecordSetLayer;
                                foreach (Graphic g2 in bufferGD.FeatureSet.Features)
                                {
                                     //渲染
                                           g2.Symbol = LayoutRoot.Resources["BufferNzySymbol"] as Symbol;
                                     layer.Graphics.Add(g2);
                                }
                                bufferGraphics.AddRange(bufferGD.FeatureSet.Features);
                                this.BufferList.ItemsSource = null;
                                this.BufferList.ItemsSource = bufferGraphics;
                                break;
                        }
                        Map.Layers.Add(layer);
                    };
                    geoprocessorTask.GetResultDataAsync(e1.JobInfo.JobId, "BufferNzy");
                };

 

 

前台代码：

            <esri:SimpleFillSymbol x:Key="BufferNzySymbol" Fill="#66FFFF00" BorderBrush="Yellow"  BorderThickness="2"  />
            <esri:SimpleFillSymbol x:Key="BufferGdSymbol" Fill="#66FF0000" BorderBrush="Red"  BorderThickness="2"  />

                      <sdk:TabItem Header="缓冲区列表" 
                              ToolTipService.ToolTip="缓冲区列表"
                              x:Name="BufferTabItem" Template="{StaticResource BlockTabHeaderControlTemplate}">
                        <Grid>
                            <Grid.RowDefinitions>
                                <RowDefinition Height="Auto" />
                                <RowDefinition Height="2" />
                                <RowDefinition Height="*" x:Name="BufferGrid"/>
                                <RowDefinition Height="1" />
                            </Grid.RowDefinitions>
                            <TextBlock Text="缓冲区列表"
                           Margin="5"
                           FontSize="14" />
                            <Rectangle Grid.Row="1"
                           Fill="{StaticResource BackstageAccentLineBrush}" />
                            <ListBox x:Name="BufferList" Grid.Row="2" SelectionChanged="BufferList_SelectionChanged">
                                <ListBox.ItemTemplate>
                                    <DataTemplate>
                                        <TextBlock  MouseLeftButtonDown="TextBlock_MouseLeftButtonDown" Text="{Binding Attributes[DK_XH]}" VerticalAlignment="Center" HorizontalAlignment="Left"/>
                                    </DataTemplate>
                                </ListBox.ItemTemplate>
                            </ListBox>
                        </Grid>
                    </sdk:TabItem>

最后的效果就是：