From cb2d49e0d279277fcaf6d919e3e0c29aaa8be424 Mon Sep 17 00:00:00 2001
From: PeterZhong <mail@peterzhong1219.site>
Date: Thu, 5 Dec 2024 23:57:27 +0800
Subject: [PATCH] Query UI

---
 .../.idea/indexLayout.xml                     |  10 +
 GisDevelop_Exp/AttributeQuery.xaml            |  28 +++
 GisDevelop_Exp/AttributeQuery.xaml.cs         | 190 ++++++++++++++++++
 .../ExtentLocationQueryResultsWindow.xaml     |  16 ++
 .../ExtentLocationQueryResultsWindow.xaml.cs  | 100 +++++++++
 GisDevelop_Exp/GisDevelop_Exp.csproj          |  15 ++
 .../LocationQueryResultsWindow.xaml           |  17 ++
 .../LocationQueryResultsWindow.xaml.cs        |  97 +++++++++
 GisDevelop_Exp/MainWindow.xaml                |   4 +-
 GisDevelop_Exp/MainWindow.xaml.cs             |  98 ++++++++-
 GisDevelop_Exp/QueryResult.cs                 |  28 +++
 GisDevelop_Exp/QueryResultWindow.xaml         |  14 ++
 GisDevelop_Exp/QueryResultWindow.xaml.cs      |  69 +++++++
 13 files changed, 677 insertions(+), 9 deletions(-)
 create mode 100644 .idea/.idea.GisDevelop_Exp/.idea/indexLayout.xml
 create mode 100644 GisDevelop_Exp/AttributeQuery.xaml
 create mode 100644 GisDevelop_Exp/AttributeQuery.xaml.cs
 create mode 100644 GisDevelop_Exp/ExtentLocationQueryResultsWindow.xaml
 create mode 100644 GisDevelop_Exp/ExtentLocationQueryResultsWindow.xaml.cs
 create mode 100644 GisDevelop_Exp/LocationQueryResultsWindow.xaml
 create mode 100644 GisDevelop_Exp/LocationQueryResultsWindow.xaml.cs
 create mode 100644 GisDevelop_Exp/QueryResult.cs
 create mode 100644 GisDevelop_Exp/QueryResultWindow.xaml
 create mode 100644 GisDevelop_Exp/QueryResultWindow.xaml.cs

diff --git a/.idea/.idea.GisDevelop_Exp/.idea/indexLayout.xml b/.idea/.idea.GisDevelop_Exp/.idea/indexLayout.xml
new file mode 100644
index 0000000..c9bbc2f
--- /dev/null
+++ b/.idea/.idea.GisDevelop_Exp/.idea/indexLayout.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="UserContentModel">
+    <attachedFolders>
+      <Path>../../GisDevelop</Path>
+    </attachedFolders>
+    <explicitIncludes />
+    <explicitExcludes />
+  </component>
+</project>
\ No newline at end of file
diff --git a/GisDevelop_Exp/AttributeQuery.xaml b/GisDevelop_Exp/AttributeQuery.xaml
new file mode 100644
index 0000000..d5c96d8
--- /dev/null
+++ b/GisDevelop_Exp/AttributeQuery.xaml
@@ -0,0 +1,28 @@
+<Window x:Class="GisDevelop_Exp.AttributeQuery"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:GisDevelop_Exp"
+        mc:Ignorable="d"
+        Title="按属性查询" Height="323" Width="422"
+        Loaded="AttributeQuery_OnLoaded">
+    <Canvas Margin="0,0,370,0">
+        <Label Content="选择图层" Canvas.Left="50" Canvas.Top="36"/>
+        <ComboBox x:Name="comboBoxLayers" Canvas.Left="121" Canvas.Top="40" Width="243" HorizontalAlignment="Left" VerticalAlignment="Center" SelectionChanged="ComboBoxLayers_OnSelectionChanged"/>
+        <ListBox x:Name="listBoxFields" Height="108" Width="123" d:ItemsSource="{d:SampleData ItemCount=5}" HorizontalAlignment="Left" Canvas.Top="84" VerticalAlignment="Center" Canvas.Left="36" SelectionChanged="ListBoxFields_OnSelectionChanged" MouseDoubleClick="ListBoxFields_OnMouseDoubleClick"/>
+        <ListBox x:Name="listBoxFieldValue" Height="108" Width="124" d:ItemsSource="{d:SampleData ItemCount=5}" Canvas.Top="84" Canvas.Left="276" HorizontalAlignment="Left" VerticalAlignment="Center" MouseDoubleClick="ListBoxFieldValue_OnMouseDoubleClick"/>
+        <Button x:Name="buttonEqual" Content="=" Canvas.Left="179" Canvas.Top="105" HorizontalAlignment="Left" VerticalAlignment="Top" Width="21" Height="22" MouseDoubleClick="OperatorButtonClick"/>
+        <Button x:Name="buttonNotEqual" Content="&lt;&gt;" Canvas.Left="200" Canvas.Top="105" Width="21" Height="22" HorizontalAlignment="Left" VerticalAlignment="Top" MouseDoubleClick="OperatorButtonClick"/>
+        <Button x:Name="buttonLike" Content="Like" Canvas.Left="221" Canvas.Top="105" Width="30" Height="22" HorizontalAlignment="Left" VerticalAlignment="Top" MouseDoubleClick="OperatorButtonClick"/>
+        <Button x:Name="buttonLessThan" Content="&lt;" Canvas.Left="179" Canvas.Top="127" Width="21" Height="22" HorizontalAlignment="Left" VerticalAlignment="Top" MouseDoubleClick="OperatorButtonClick"/>
+        <Button x:Name="buttonLessEqual" Content="&lt;=" Canvas.Left="200" Canvas.Top="127" Width="21" Height="22" HorizontalAlignment="Left" VerticalAlignment="Top" MouseDoubleClick="OperatorButtonClick"/>
+        <Button x:Name="buttonAnd" Content="And" Canvas.Left="221" Canvas.Top="127" Width="30" Height="22" HorizontalAlignment="Left" VerticalAlignment="Top" MouseDoubleClick="OperatorButtonClick"/>
+        <Button x:Name="buttonGreaterThan" Content="&gt;" Canvas.Left="179" Canvas.Top="149" Width="21" Height="22" HorizontalAlignment="Left" VerticalAlignment="Top" MouseDoubleClick="OperatorButtonClick"/>
+        <Button x:Name="buttonGreaterEqual" Content="&gt;=" Canvas.Left="200" Canvas.Top="149" Width="21" Height="22" HorizontalAlignment="Left" VerticalAlignment="Top" MouseDoubleClick="OperatorButtonClick"/>
+        <Button x:Name="buttonOr" Content="Or" Canvas.Left="221" Canvas.Top="149" Width="30" Height="22" HorizontalAlignment="Left" VerticalAlignment="Top" MouseDoubleClick="OperatorButtonClick"/>
+        <TextBox x:Name="textBoxWhere" Canvas.Left="36" TextWrapping="Wrap" Text="TextBox" Canvas.Top="212" Width="364" HorizontalAlignment="Left" VerticalAlignment="Center" Height="29"/>
+        <Button Content="确认" Canvas.Left="36" Canvas.Top="262" RenderTransformOrigin="-0.278,-0.098" HorizontalAlignment="Left" VerticalAlignment="Center" Width="72" Click="ButtonBase_OK_OnClick"/>
+        <Button Content="取消" Canvas.Left="328" Canvas.Top="262" RenderTransformOrigin="-0.278,-0.098" Width="72" HorizontalAlignment="Left" VerticalAlignment="Center" Click="ButtonBase_Cancel_OnClick"/>
+    </Canvas>
+</Window>
diff --git a/GisDevelop_Exp/AttributeQuery.xaml.cs b/GisDevelop_Exp/AttributeQuery.xaml.cs
new file mode 100644
index 0000000..533ce1d
--- /dev/null
+++ b/GisDevelop_Exp/AttributeQuery.xaml.cs
@@ -0,0 +1,190 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+using Esri.ArcGISRuntime.Data;
+
+namespace GisDevelop_Exp
+{
+    /// <summary>
+    /// Interaction logic for AttributeQuery.xaml
+    /// </summary>
+    public partial class AttributeQuery : Window
+    {
+        private List<FeatureTable> _tables;// 表集合
+        private String sqlString; //查询语句的where子句
+        private FeatureTable selectedTable;// 当前所选要素表对象
+        
+        public AttributeQuery()
+        {
+            InitializeComponent(); 
+            Tables = new List<FeatureTable>();//初始化表集合
+            sqlString = string.Empty;//初始化字符串
+            selectedTable = null; 
+            listBoxFields.Items.Clear();//清空字段组合框的内容
+            listBoxFieldValue.Items.Clear();//清空字段值组合框的内容
+            textBoxWhere.Text = string.Empty;//清空文本框
+        }
+        
+        public List<FeatureTable> Tables 
+        { 
+            get { return _tables; } 
+            set { _tables = value; } 
+        } 
+        public string SqlString 
+        { 
+            get { return sqlString; }
+            set { sqlString = value; } 
+        }
+
+
+        private void AttributeQuery_OnLoaded(object sender, RoutedEventArgs e)
+        {
+            if(Tables .Count > 0)//表集合不为空
+            { 
+                foreach (FeatureTable tb in Tables)// 遍历表，将表名加入组合框
+                { 
+                    comboBoxLayers.Items.Add(tb.TableName); 
+                } 
+            }
+        }
+
+        private void ComboBoxLayers_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            if (comboBoxLayers.SelectedIndex > -1)//选项有效
+            { 
+                selectedTable = Tables.ElementAt(comboBoxLayers.SelectedIndex);//根据索引取得表对象
+                if(selectedTable !=null) 
+                { 
+                    listBoxFields.Items.Clear();//清空字段组合框内容
+                    foreach (Field fld in selectedTable.Fields)//遍历表字段集合，将字段名加入组合框
+                    { 
+                        listBoxFields.Items.Add(fld.Name); 
+                    } 
+                } 
+            }
+        }
+
+
+        private async void ListBoxFields_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            if (selectedTable !=null && listBoxFields.SelectedIndex > -1)//选项有效
+            { 
+                Field selectedField = 
+                    selectedTable.Fields.ElementAt(listBoxFields.SelectedIndex);//取得索引的字段
+                FeatureQueryResult result = await selectedTable.QueryFeaturesAsync(new
+                    QueryParameters());//构建查询参数对象在表对象上进行查询
+                if (result == null) return; 
+                listBoxFieldValue.Items.Clear();//清空字段值列表框内容
+                foreach (Feature ft in result)//遍历查询结果
+                { 
+                    string strValue = ft.GetAttributeValue(selectedField).ToString();//取得当前字段值
+                    if (!listBoxFieldValue.Items.Contains(strValue))//检查该值是否已存在
+                    { 
+                        listBoxFieldValue.Items.Add(strValue);//加入字段值列表框
+                    } 
+                } 
+            }
+        }
+        
+        private void ListBoxFields_OnMouseDoubleClick(object sender, MouseButtonEventArgs e)
+        {
+            if (listBoxFields.SelectedIndex > -1)//选择项有效
+            { 
+                string strSelField = listBoxFields.SelectedItem.ToString(); 
+                textBoxWhere.Text = string.Concat(textBoxWhere.Text ," ", strSelField); //将所选项填入文本框中
+            }
+        }
+
+
+        private void ListBoxFieldValue_OnMouseDoubleClick(object sender, MouseButtonEventArgs e)
+        {
+            if (listBoxFieldValue.SelectedIndex > -1)//所选项有效
+            { 
+                string strSelValue = listBoxFieldValue.SelectedItem.ToString();
+                if(textBoxWhere.Text.EndsWith("and") || textBoxWhere.Text.EndsWith("or"))//如果文本框字符串结尾为and和or则返回
+                { 
+                    return; 
+                }
+                else
+                {
+                    int idx = textBoxWhere.Text.LastIndexOf("'"); //查找最后一个'符号
+                    int idx2 = textBoxWhere.Text.LastIndexOf("%"); //如果为模糊查询，则插入值在%号前面
+                    if (idx2 > 0)
+                        idx = idx2;
+                    if (idx > 0)
+                    {
+                        textBoxWhere.Text = textBoxWhere.Text.Insert(idx, strSelValue); //在文本框字符串中插入字段值
+                    }
+                }
+            }
+        }
+        
+        private void OperatorButtonClick(object sender, RoutedEventArgs e) 
+        { 
+            Button btn = (Button)sender;//获取button按钮对象
+            switch (btn.Name)//根据button对象的名称来判断当前按下的按钮
+            { 
+                case "buttonEqual"://等于
+                    textBoxWhere.Text = string.Concat(textBoxWhere.Text, " ", "= ''");
+                    break; 
+                case "buttonNotEqual"://不等
+                    textBoxWhere.Text = string.Concat(textBoxWhere.Text, " ", "<> ''");
+                    break; 
+                case "buttonLike"://模糊谓词like
+                    textBoxWhere.Text = string.Concat(textBoxWhere.Text, " ", "like '%%'");
+                    break; 
+                case "buttonLessThan"://小于
+                    textBoxWhere.Text = string.Concat(textBoxWhere.Text, " ", "< ''");
+                    break; 
+                case "buttonLessEqual"://小于等于
+                    textBoxWhere.Text = string.Concat(textBoxWhere.Text, " ", "<= ''");
+                    break; 
+                case "buttonAnd"://与谓词and
+                    textBoxWhere.Text = string.Concat(textBoxWhere.Text, " ", "and");
+                    break; 
+                case "buttonGreaterThan"://大于
+                    textBoxWhere.Text = string.Concat(textBoxWhere.Text, " ", "> ''");
+                    break; 
+                case "buttonGreaterEqual"://大于等于
+                    textBoxWhere.Text = string.Concat(textBoxWhere.Text, " ", ">= ''");
+                    break; 
+                case "buttonOr"://或谓词or
+                    textBoxWhere.Text = string.Concat(textBoxWhere.Text, " ", "or");
+                    break; 
+            } 
+        }
+
+        private async void ButtonBase_OK_OnClick(object sender, RoutedEventArgs e)
+        {
+            this.DialogResult = true;//设置窗体对话框退出时的结果为true
+            if (selectedTable != null)//当前选择的表对象存在
+            { 
+                QueryParameters qParams = new QueryParameters();//创建查询参数对象
+                qParams.WhereClause = textBoxWhere.Text.Trim();//获取文本框中的字符串作为查询参数对象的where子句
+                FeatureQueryResult result =await selectedTable.QueryFeaturesAsync(qParams);//在表上进行查询
+                if(result != null)//查询结果不为空
+                { 
+                    QueryResultWindow qsw = new QueryResultWindow();//构造查询结果窗体对象
+                    qsw.FeatureQuerySet = result;//设置查询结果对象引用
+                    qsw.ShowDialog(); //以对话框形式显示窗体
+                } 
+            }
+        }
+
+
+        private void ButtonBase_Cancel_OnClick(object sender, RoutedEventArgs e)
+        {
+            this.DialogResult = false;
+        }
+    }
+}
diff --git a/GisDevelop_Exp/ExtentLocationQueryResultsWindow.xaml b/GisDevelop_Exp/ExtentLocationQueryResultsWindow.xaml
new file mode 100644
index 0000000..91cf60c
--- /dev/null
+++ b/GisDevelop_Exp/ExtentLocationQueryResultsWindow.xaml
@@ -0,0 +1,16 @@
+<Window x:Class="GisDevelop_Exp.ExtentLocationQueryResultsWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:GisDevelop_Exp"
+        mc:Ignorable="d"
+        Title="拉框选择结果窗口" Height="450" Width="316"
+        Activated="LocationQueryResultsWindow_OnActivated">
+    <Canvas>
+        <ComboBox x:Name="comboBoxLayer" Canvas.Left="10" Canvas.Top="10" Width="164" HorizontalAlignment="Left" VerticalAlignment="Center" SelectionChanged="ComboBoxLayer_OnSelectionChanged"/>
+        <ComboBox x:Name="comboBoxRecord" Canvas.Left="174" Canvas.Top="10" Width="132" HorizontalAlignment="Left" VerticalAlignment="Center" SelectionChanged="ComboBoxRecord_OnSelectionChanged"/>
+        <DataGrid x:Name="dataGridContent" Height="377" Width="286" d:ItemsSource="{d:SampleData ItemCount=5}" HorizontalAlignment="Center" Canvas.Top="37" VerticalAlignment="Top" Canvas.Left="20"/>
+    </Canvas>
+
+</Window>
diff --git a/GisDevelop_Exp/ExtentLocationQueryResultsWindow.xaml.cs b/GisDevelop_Exp/ExtentLocationQueryResultsWindow.xaml.cs
new file mode 100644
index 0000000..a671fe6
--- /dev/null
+++ b/GisDevelop_Exp/ExtentLocationQueryResultsWindow.xaml.cs
@@ -0,0 +1,100 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+using Esri.ArcGISRuntime.Data;
+
+namespace GisDevelop_Exp
+{
+    /// <summary>
+    /// Interaction logic for LocationQueryResultsWindow.xaml
+    /// </summary>
+    public partial class ExtentLocationQueryResultsWindow : Window
+    {
+        public List<QueryResult> resultCollection;//地图识别操作结果集合
+        private bool isClosed;//窗体关闭标记
+        private QueryResult curSelLayer;//当前选择的图层
+
+        public List<QueryResult> ResultCollection
+        {
+            get => resultCollection;
+            set => resultCollection = value ?? throw new ArgumentNullException(nameof(value));
+        }
+
+        public bool IsClosed 
+        { 
+            get { return isClosed; } 
+        }
+        
+        public ExtentLocationQueryResultsWindow()
+        {
+            InitializeComponent();
+        }
+
+        private void LocationQueryResultsWindow_OnActivated(object? sender, EventArgs e)
+        {
+            if(resultCollection!=null)//查询结果集不为空
+            { 
+                comboBoxLayer.Items.Clear();//清空图层组合框的内容
+                foreach (QueryResult result in resultCollection)
+                {
+                    comboBoxLayer.Items.Add(result.Name);
+                }
+
+                QueryResult firstQueryResult = resultCollection.First();//获取第一个集合中第一个图层
+                curSelLayer = firstQueryResult;
+                List<IDictionary<string, object>> selFeatures = firstQueryResult.Attributes;//获取图层中所有要素
+                comboBoxRecord.Items.Clear();//清空记录组合框的内容
+                for(int i = 1; i <= selFeatures.Count; i++)
+                { 
+                    comboBoxRecord.Items.Add(i);//遍历要素集合，为记录组合框添加项
+                } 
+                IDictionary<string, object> firstAttribute = selFeatures.First();//取得要素集合中第一个要素
+                dataGridContent.AutoGenerateColumns = true;//数据格网对象自动生成列
+                dataGridContent.ItemsSource = firstAttribute;//设置数据格网中项的数据源
+                comboBoxLayer.SelectedIndex = 0;
+                comboBoxRecord.SelectedIndex = 0;
+            }
+        }
+
+        private void LocationQueryResultsWindow_OnClosed(object? sender, EventArgs e)
+        {
+            isClosed = true;
+        }
+        
+        private void ComboBoxLayer_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            if(comboBoxLayer.SelectedIndex>-1)//索引有效
+            { 
+                curSelLayer = resultCollection[comboBoxLayer.SelectedIndex];//取得索引对应的要素图层
+                comboBoxRecord.Items.Clear();//清空记录组合框的 内容
+                for(int i = 1; i <= curSelLayer.Attributes.Count; i++) 
+                { 
+                    comboBoxRecord.Items.Add(i);//遍历图层记录数，为记录组合框添加项
+                } 
+                IDictionary<string,object> curAttribute = curSelLayer.Attributes.First();//取得记录集中的第一个要素
+                dataGridContent.ItemsSource = curAttribute;//设置数据格网对象中项的数据源
+                comboBoxRecord.SelectedIndex = 0;
+            }
+        }
+
+        private void ComboBoxRecord_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            if(curSelLayer !=null && comboBoxRecord.SelectedIndex > -1)//当前图层不为空，所选记录索引有效
+            { 
+                IDictionary<string,object> curAttribute =
+                    curSelLayer.Attributes[comboBoxRecord.SelectedIndex];//获取索引所在要素
+                dataGridContent.ItemsSource = curAttribute;//设置数据格网对象中项的数据源
+            }
+        }
+    }
+}
diff --git a/GisDevelop_Exp/GisDevelop_Exp.csproj b/GisDevelop_Exp/GisDevelop_Exp.csproj
index 61b8517..a4d043f 100644
--- a/GisDevelop_Exp/GisDevelop_Exp.csproj
+++ b/GisDevelop_Exp/GisDevelop_Exp.csproj
@@ -16,4 +16,19 @@
     </PackageReference>
   </ItemGroup>
 
+  <ItemGroup>
+    <Page Update="ExtentLocationQueryResultsWindow.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <XamlRuntime>Wpf</XamlRuntime>
+      <SubType>Designer</SubType>
+    </Page>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Compile Update="ExtentLocationQueryResultsWindow.xaml.cs">
+      <SubType>Code</SubType>
+      <DependentUpon>ExtentLocationQueryResultsWindow.xaml</DependentUpon>
+    </Compile>
+  </ItemGroup>
+
 </Project>
diff --git a/GisDevelop_Exp/LocationQueryResultsWindow.xaml b/GisDevelop_Exp/LocationQueryResultsWindow.xaml
new file mode 100644
index 0000000..dd4a428
--- /dev/null
+++ b/GisDevelop_Exp/LocationQueryResultsWindow.xaml
@@ -0,0 +1,17 @@
+<Window x:Class="GisDevelop_Exp.LocationQueryResultsWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:GisDevelop_Exp"
+        mc:Ignorable="d"
+        Title="LocationQueryResultsWindow" Height="450" Width="316"
+        Activated="LocationQueryResultsWindow_OnActivated"
+        Closed="LocationQueryResultsWindow_OnClosed">
+    <Canvas>
+        <ComboBox x:Name="comboBoxLayer" Canvas.Left="10" Canvas.Top="10" Width="164" HorizontalAlignment="Left" VerticalAlignment="Center" SelectionChanged="ComboBoxLayer_OnSelectionChanged"/>
+        <ComboBox x:Name="comboBoxRecord" Canvas.Left="174" Canvas.Top="10" Width="132" HorizontalAlignment="Left" VerticalAlignment="Center" SelectionChanged="ComboBoxRecord_OnSelectionChanged"/>
+        <DataGrid x:Name="dataGridContent" Height="377" Width="286" d:ItemsSource="{d:SampleData ItemCount=5}" HorizontalAlignment="Center" Canvas.Top="37" VerticalAlignment="Top" Canvas.Left="20"/>
+    </Canvas>
+
+</Window>
diff --git a/GisDevelop_Exp/LocationQueryResultsWindow.xaml.cs b/GisDevelop_Exp/LocationQueryResultsWindow.xaml.cs
new file mode 100644
index 0000000..f6b5916
--- /dev/null
+++ b/GisDevelop_Exp/LocationQueryResultsWindow.xaml.cs
@@ -0,0 +1,97 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+using Esri.ArcGISRuntime.Data;
+
+namespace GisDevelop_Exp
+{
+    /// <summary>
+    /// Interaction logic for LocationQueryResultsWindow.xaml
+    /// </summary>
+    public partial class LocationQueryResultsWindow : Window
+    {
+        private IReadOnlyList<IdentifyLayerResult> resultCollection;//地图识别操作结果集合
+        private bool isClosed;//窗体关闭标记
+        private IdentifyLayerResult curSelLayer;//当前选择的图层
+        public IReadOnlyList<IdentifyLayerResult> ResultCollection 
+        { 
+            get { return resultCollection; } 
+            set { resultCollection = value; } 
+        } 
+        public bool IsClosed 
+        { 
+            get { return isClosed; } 
+        }
+        
+        public LocationQueryResultsWindow()
+        {
+            InitializeComponent();
+        }
+
+        private void LocationQueryResultsWindow_OnActivated(object? sender, EventArgs e)
+        {
+            if(resultCollection!=null)//查询结果集不为空
+            { 
+                comboBoxLayer.Items.Clear();//清空图层组合框的内容
+                foreach (IdentifyLayerResult result in resultCollection)//遍历集合
+                { 
+                    comboBoxLayer.Items.Add(result.LayerContent.Name);//添加图层名到图层组合框
+                } 
+                IdentifyLayerResult firstLayerResult = resultCollection.First();//获取第一个集合中第一个图层
+                IReadOnlyList<GeoElement> selFeatures = firstLayerResult.GeoElements;//获取图层中所有要素
+                comboBoxRecord.Items.Clear();//清空记录组合框的内容
+                for(int i = 1; i <= selFeatures.Count; i++)
+                { 
+                    comboBoxRecord.Items.Add(i);//遍历要素集合，为记录组合框添加项
+                } 
+                Feature ft = (Feature)selFeatures.First();//取得要素集合中第一个要素
+                dataGridContent.AutoGenerateColumns = true;//数据格网对象自动生成列
+                dataGridContent.ItemsSource = ft.Attributes;//设置数据格网中项的数据源
+                comboBoxLayer.SelectedIndex = 0;
+                comboBoxRecord.SelectedIndex = 0;
+            }
+        }
+
+        private void LocationQueryResultsWindow_OnClosed(object? sender, EventArgs e)
+        {
+            isClosed = true;
+        }
+
+
+        private void ComboBoxLayer_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            if(comboBoxLayer.SelectedIndex>-1)//索引有效
+            { 
+                curSelLayer = resultCollection[comboBoxLayer.SelectedIndex];//取得索引对应的要素图层
+                comboBoxRecord.Items.Clear();//清空记录组合框的 内容
+                for(int i = 1; i <= curSelLayer.GeoElements.Count; i++) 
+                { 
+                    comboBoxRecord.Items.Add(i);//遍历图层记录数，为记录组合框添加项
+                } 
+                Feature ft = (Feature ) curSelLayer.GeoElements.First();//取得记录集中的第一个要素
+                dataGridContent.ItemsSource = ft.Attributes;//设置数据格网对象中项的数据源
+                comboBoxRecord.SelectedIndex = 0;
+            }
+        }
+
+        private void ComboBoxRecord_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            if(curSelLayer !=null && comboBoxRecord.SelectedIndex > -1)//当前图层不为空，所选记录索引有效
+            { 
+                Feature ft = (Feature ) 
+                    curSelLayer.GeoElements[comboBoxRecord.SelectedIndex];//获取索引所在要素
+                dataGridContent.ItemsSource = ft.Attributes;//设置数据格网对象中项的数据源
+            }
+        }
+    }
+}
diff --git a/GisDevelop_Exp/MainWindow.xaml b/GisDevelop_Exp/MainWindow.xaml
index 9eb98cf..07de407 100644
--- a/GisDevelop_Exp/MainWindow.xaml
+++ b/GisDevelop_Exp/MainWindow.xaml
@@ -58,7 +58,7 @@
                 <MenuItem x:Name="Menu_Attribute_Query" Header="按属性查询" Click="Menu_Attribute_Query_OnClick"></MenuItem>
                 <MenuItem Header="按位置查询">
                     <MenuItem x:Name="Menu_Query_Point" Header="点击选择" Click="Menu_Query_Point_OnClick"></MenuItem>
-                    <MenuItem x:Name="Menu_Query_Envelope" Header="拉框选择"></MenuItem>
+                    <MenuItem x:Name="Menu_Query_Envelope" Header="拉框选择" Click="Menu_Query_Envelope_OnClick"></MenuItem>
                 </MenuItem>
                 <Separator></Separator>
                 <MenuItem x:Name="Menu_Clear_Selection" Header="清除选择"></MenuItem>
@@ -67,7 +67,7 @@
         <esri:MapView x:Name="MainMapView" Map="{Binding Map, Source={StaticResource MapViewModel}}" Margin="0,19,0,0"
                       ViewpointChanged="MainMapView_OnViewpointChanged" GeoViewTapped="MainMapView_OnGeoViewTapped"
                       MouseLeftButtonDown="MainMapView_OnMouseLeftButtonDown"
-                      MouseRightButtonDown="MainMapView_OnMouseRightButtonDown" />
+                      MouseRightButtonDown="MainMapView_OnMouseRightButtonDown"/>
         <ListBox x:Name="LayerListBox" Width="143" SelectedIndex="0" RenderTransformOrigin="0.451,1.105"
                  Margin="0,56,0,13" HorizontalAlignment="Left" PreviewMouseMove="LayerListBox_OnPreviewMouseMove"
                  Drop="LayerListBox_OnDrop" PreviewMouseRightButtonDown="LayerListBox_OnPreviewMouseRightButtonDown"
diff --git a/GisDevelop_Exp/MainWindow.xaml.cs b/GisDevelop_Exp/MainWindow.xaml.cs
index acecc9d..7b16f4f 100644
--- a/GisDevelop_Exp/MainWindow.xaml.cs
+++ b/GisDevelop_Exp/MainWindow.xaml.cs
@@ -44,7 +44,10 @@ enum CURRENTOPERATION
     Cal_Intersect,
     Cal_Intersection,
     Cal_Gene,
-    Cal_Buff
+    Cal_Buff,
+    AttributeQuery,
+    ClickQuery,
+    ExtentQuery
 }
 
 namespace GisDevelop_Exp
@@ -80,7 +83,9 @@ namespace GisDevelop_Exp
         
         private int selByGeometryType = 0;
         
-        LocationQueryResultsWindow locationQueryResultsWindow ;
+        LocationQueryResultsWindow locationQueryResultsWindow;
+
+        private MapPoint _startLocation;
 
         private readonly Dictionary<string, Basemap> _basemapOptions = new Dictionary<string, Basemap>()
         {
@@ -161,14 +166,12 @@ namespace GisDevelop_Exp
                 for (int i = 0; i < fileDialog.FileNames.Length; i++)
                 {
                     String filePath = fileDialog.FileNames.GetValue(i).ToString();
-
                     ShapefileFeatureTable openedFeature = await ShapefileFeatureTable.OpenAsync(filePath);
                     FeatureLayer opendFeatureLayer = new FeatureLayer(openedFeature);
                     MainMapView.Map.OperationalLayers.Add(opendFeatureLayer);
                     await MainMapView.SetViewpointGeometryAsync(openedFeature.Extent);
                 }
             }
-
             AddLayerNameToList();
         }
 
@@ -1008,7 +1011,7 @@ namespace GisDevelop_Exp
                 }
             }
             
-            if(selByGeometryType == 1)//检查是否为按照位置查询中的点选
+            if(m_CurOper == CURRENTOPERATION.ClickQuery)//检查是否为按照位置查询中的点选
             { 
                 IInputElement ie = (IInputElement)sender;//转换事件宿主对象为IInputElement对象
                 IReadOnlyList< IdentifyLayerResult> results =await
@@ -1029,6 +1032,81 @@ namespace GisDevelop_Exp
                     locationQueryResultsWindow.Activate();//使子窗体处于激活状态
                 } 
             }
+            else if (m_CurOper == CURRENTOPERATION.ExtentQuery)
+            {
+                if (_startLocation == null)
+                {
+                    MainMapView.GraphicsOverlays.Clear();
+                    this._startLocation = location;
+                }
+                else
+                {
+                    MapPoint _curLocation = location;
+                    List<MapPoint> extentPoints = new List<MapPoint>();
+                    extentPoints.Add(new MapPoint(_startLocation.X, _startLocation.Y));
+                    extentPoints.Add(new MapPoint(_startLocation.X, location.Y));
+                    extentPoints.Add(new MapPoint(location.X, location.Y));
+                    extentPoints.Add(new MapPoint(location.X, _startLocation.Y));
+                    Polygon polygon = new Polygon(extentPoints);
+                    Color lineColor = Color.FromArgb(255, 255, 0, 0);
+                    SimpleLineSymbol lineSymbol =
+                        new Esri.ArcGISRuntime.Symbology.SimpleLineSymbol(SimpleLineSymbolStyle.Dash, lineColor, 2.0);
+                    Color fillColor = Color.FromArgb(0, 0, 0, 0);
+                    SimpleFillSymbol fillSymbol = new SimpleFillSymbol(SimpleFillSymbolStyle.Solid, fillColor, lineSymbol);
+                    Graphic polygonGraphic = new Graphic(polygon, fillSymbol);
+                    MainMapView.GraphicsOverlays.Add(new GraphicsOverlay());
+                    MainMapView.GraphicsOverlays[0].Graphics.Add(polygonGraphic);
+                    
+                    Envelope selEnv = new Envelope(this._startLocation.X, this._startLocation.Y, location.X,
+                        location.Y, MainMapView.SpatialReference);
+                    QueryParameters pQueryPara = new QueryParameters();
+                    pQueryPara.Geometry = selEnv;
+                    pQueryPara.SpatialRelationship = SpatialRelationship.Intersects;
+                    // _featureLayer = MainMapView.Map.OperationalLayers[0] as FeatureLayer;
+                    List<QueryResult> queryResults = new List<QueryResult>();
+                    foreach (FeatureLayer featureLayer in MainMapView.Map.OperationalLayers)
+                    {
+                        await featureLayer.SelectFeaturesAsync(pQueryPara,
+                            Esri.ArcGISRuntime.Mapping.SelectionMode.New);
+
+                        FeatureQueryResult pQueryResult = await featureLayer.GetSelectedFeaturesAsync();
+
+                        List<Feature> pListFeatures = pQueryResult.ToList();
+                        if (pListFeatures.Count <= 0)
+                        {
+                            return;
+                        }
+
+                        EnvelopeBuilder pEnvBuilder = new EnvelopeBuilder(featureLayer.SpatialReference);
+                        for (int i = 0; i < pListFeatures.Count; i++)
+                        {
+                            pEnvBuilder.UnionOf(pListFeatures[i].Geometry.Extent);
+                        }
+
+                        await MainMapView.SetViewpointGeometryAsync(pEnvBuilder.ToGeometry(), 50);
+                        Feature pFeature;
+                        string sInfo = "";
+                        IReadOnlyList<Field> pFields = pQueryResult.Fields;
+                        string featureLayerName = featureLayer.Name;
+                        List<IDictionary<string, object>> attributes = new List<IDictionary<string, object>>();
+                        for (int i = 0; i < pListFeatures.Count; i++)
+                        {
+                            pFeature = pListFeatures[i];
+                            IDictionary<string, object> FeatureAttri = pFeature.Attributes;
+                            string featureName = pFeature.FeatureTable.Layer.Name;
+                            attributes.Add(FeatureAttri);
+                        }
+                        queryResults.Add(new QueryResult(featureLayerName, attributes));
+                    }
+                    
+                    ExtentLocationQueryResultsWindow resultsWindow = new ExtentLocationQueryResultsWindow();
+                    resultsWindow.resultCollection = queryResults;
+                    resultsWindow.Show();
+                    resultsWindow.Activate();
+                    MainMapView.GraphicsOverlays.Clear();
+                    _startLocation = null;
+                }
+            }
         }
 
         private void Menu_Layers_Options_OnClick(object sender, RoutedEventArgs e)
@@ -1559,8 +1637,14 @@ namespace GisDevelop_Exp
         private void Menu_Query_Point_OnClick(object sender, RoutedEventArgs e)
         {
             selByGeometryType = 1;//设置其值为1
+            m_CurOper = CURRENTOPERATION.ClickQuery;
+        }
+
+
+        private void Menu_Query_Envelope_OnClick(object sender, RoutedEventArgs e)
+        {
+            selByGeometryType = 2;//设置其值为2
+            m_CurOper = CURRENTOPERATION.ExtentQuery;
         }
-        
-        
     }
 }
\ No newline at end of file
diff --git a/GisDevelop_Exp/QueryResult.cs b/GisDevelop_Exp/QueryResult.cs
new file mode 100644
index 0000000..6682a72
--- /dev/null
+++ b/GisDevelop_Exp/QueryResult.cs
@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+
+namespace GisDevelop_Exp;
+
+public class QueryResult
+{
+    private string name;
+    private List<IDictionary<string, object>> attributes;
+
+    public QueryResult(string name, List<IDictionary<string, object>> Attributes)
+    {
+        this.name = name;
+        this.attributes = Attributes;
+    }
+
+    public string Name
+    {
+        get => name;
+        set => name = value ?? throw new ArgumentNullException(nameof(value));
+    }
+
+    public List<IDictionary<string, object>> Attributes
+    {
+        get => attributes;
+        set => attributes = value ?? throw new ArgumentNullException(nameof(value));
+    }
+}
\ No newline at end of file
diff --git a/GisDevelop_Exp/QueryResultWindow.xaml b/GisDevelop_Exp/QueryResultWindow.xaml
new file mode 100644
index 0000000..dbd1507
--- /dev/null
+++ b/GisDevelop_Exp/QueryResultWindow.xaml
@@ -0,0 +1,14 @@
+<Window x:Class="GisDevelop_Exp.QueryResultWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:GisDevelop_Exp"
+        mc:Ignorable="d"
+        Title="QueryResultWindow" Height="450" Width="319"
+        Loaded="QueryResultWindow_OnLoaded">
+    <Canvas>
+        <ComboBox x:Name="comboBoxSelectionCount" Canvas.Left="23" Canvas.Top="21" Width="273" HorizontalAlignment="Left" VerticalAlignment="Center" SelectionChanged="ComboBoxSelectionCount_OnSelectionChanged"/>
+        <DataGrid x:Name="dataGridResult" Height="356" Width="276" d:ItemsSource="{d:SampleData ItemCount=5}" HorizontalAlignment="Center" Canvas.Top="58" VerticalAlignment="Top" Canvas.Left="20"/>
+    </Canvas>
+</Window>
diff --git a/GisDevelop_Exp/QueryResultWindow.xaml.cs b/GisDevelop_Exp/QueryResultWindow.xaml.cs
new file mode 100644
index 0000000..ee30ae8
--- /dev/null
+++ b/GisDevelop_Exp/QueryResultWindow.xaml.cs
@@ -0,0 +1,69 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+using Esri.ArcGISRuntime.Data;
+using Esri.ArcGISRuntime.Mapping;
+
+namespace GisDevelop_Exp
+{
+    /// <summary>
+    /// Interaction logic for QueryResultWindow.xaml
+    /// </summary>
+    public partial class QueryResultWindow : Window
+    {
+        public QueryResultWindow()
+        {
+            InitializeComponent();
+        }
+        
+        private FeatureQueryResult featureQuerySet; //查询结果集合
+        public FeatureQueryResult FeatureQuerySet 
+        { 
+            get { return featureQuerySet; } 
+            set { featureQuerySet = value; } 
+        }
+
+        private void QueryResultWindow_OnLoaded(object sender, RoutedEventArgs e)
+        {
+            if (featureQuerySet != null)//结果不为空
+            { 
+                dataGridResult.AutoGenerateColumns = true;//数据格网控件自动生成列
+                for(int i=1;i<= featureQuerySet.Count();i++) 
+                { 
+                    comboBoxSelectionCount.Items.Add(i);//按照查询结果集中要素的数目为组合框添加项
+                } 
+                Feature ft = featureQuerySet.First();//取得查询结果集合中第一个要素
+                dataGridResult.ItemsSource = ft.Attributes;//设置数据格网对象中项的数据源
+                // ft.FeatureTable.FeatureLayer.SelectFeature(ft);
+                comboBoxSelectionCount.SelectedIndex = 0;
+                ((FeatureLayer)ft.FeatureTable.Layer).SelectFeature(ft);
+            }
+        }
+
+
+        private void ComboBoxSelectionCount_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            if (featureQuerySet != null)//查询结果集不为空
+            { 
+                int idx = comboBoxSelectionCount.SelectedIndex;//获得选择项的索引
+                if (idx > -1)
+                { 
+                    Feature ft = featureQuerySet.ElementAt(idx);//获取索引所在的要素对象
+                    dataGridResult.ItemsSource = ft.Attributes;//设置数据格网对象中项的数据源
+                    // ft.FeatureTable.FeatureLayer.ClearSelection();//清空图层中的原有的选择
+                    // ft.FeatureTable.FeatureLayer.SelectFeature(ft);//在图层中重新选择当前所选要素
+                } 
+            }
+        }
+    }
+}