WebGIS作业

WebGIS课程设计作业

姓名：甄真

班级：2011010班

专业：地理信息系统

指导老师：张俊峰许德合

实验步骤：

1.代码实现：

using System;

using System.Collections.Generic;

using System.Linq;

using ;

using System.Windows;

using System.Windows.Browser;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Markup;

using System.Windows.Shapes;

using ponentModel;

using ESRI.ArcGIS.Client;

using System.Windows.Controls.Primitives;

using ESRI.ArcGIS.Client.Tasks;

using ESRI.ArcGIS.Client.Symbols;

using ESRI.ArcGIS.Client.Behaviors;

using ESRI.ArcGIS.Client.Geometry;

namespace ESRIStandardMapApplication1

{

public partial class MainPage : UserControl

{

public MainPage()

{

InitializeComponent();

}

属性查询：

#region//属º?性?查¨¥询¡¤

private void QueryButton_Click(object sender, RoutedEventArgs e) {

QueryTask queryTask = new

QueryTask("http://zhen-pc/ArcGIS/rest/services/test/MapServer/0");

queryTask.ExecuteCompleted += QueryTask_ExecuteCompleted;

queryTask.Failed += QueryTask_Failed;

ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query(); query.Text = StateNameTextBox.Text;

query.OutFields.Add("*");

queryTask.ExecuteAsync(query);

}

void QueryTask_ExecuteCompleted(object sender,

ESRI.ArcGIS.Client.Tasks.QueryEventArgs args)//在¨²查¨¥询¡¤完ª¨º成¨¥后¨®触䣤发

¤¡é的Ì?事º?件t

{

FeatureSet featureSet = args.FeatureSet;

if (featureSet != null && featureSet.Features.Count > 0)

{

List resultList = new List();

foreach (Graphic feature in featureSet.Features)

{

resultList.Add(new QueryResultData()

{

Id = feature.Attributes["Id"].ToString(),

FID = feature.Attributes["FID"].ToString(),

Area = feature.Attributes["Area"].ToString(),

Name = feature.Attributes["Name"].ToString(),

}

);

}

QueryDetailsDataGrid.ItemsSource = resultList;

}

else

{

MessageBox.Show("No features returned from query");

}

}

private void QueryTask_Failed(object sender, TaskFailedEventArgs args)//在¨²查¨¥询¡¤失º¡ì败㨹

{

MessageBox.Show("Query execute error: " + args.Error);

}

public class QueryResultData

{

public string Id { get; set; }

public string FID { get; set; }

public string Area { get; set; }

public string Name { get; set; }

}

#endregion

书签管理：

private void FeatureLayer_MouseLeftButtonUp(object sender, GraphicMouseButtonEventArgs e) {

e.Graphic.Selected = !e.Graphic.Selected;

e.Graphic.Selected = true;

//获?取¨?选?择?要©a素?

if (e.Graphic.Selected == true)

{

//控?件t数ºy据Y源¡ä绑㨮定¡§

//IdentifyDetailsDataGrid.ItemsSource = e.Graphic.Attributes;

}

//将?该?要©a素?平?移©?至¨¢屏¨¢幕?中D心?

Map.PanTo(e.Graphic.Geometry);

}

打开属性表：

#region //属º?性?表À¨ª

private void btnAttributeMenu_Click(object sender, RoutedEventArgs e)

{

string url = "http://zhen-pc/ArcGIS/rest/services/test/MapServer/0";

QueryTask queryTask = new QueryTask(url);

queryTask.ExecuteCompleted += TableQueryTask_ExecuteCompleted;

queryTask.Failed += TableQueryTask_Failed;

ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query(); query.Where = "1=1";

query.OutFields.Add("*");

queryTask.ExecuteAsync(query);

}

void TableQueryTask_ExecuteCompleted(object sender,

ESRI.ArcGIS.Client.Tasks.QueryEventArgs args)

{

FeatureSet featureSet = args.FeatureSet;