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Query UI

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PeterZhong 2024-12-05 23:57:27 +08:00
parent b5a8793281
commit cb2d49e0d2
13 changed files with 677 additions and 9 deletions
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10
.idea/.idea.GisDevelop_Exp/.idea/indexLayout.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="UserContentModel">
<attachedFolders>
<Path>../../GisDevelop</Path>
</attachedFolders>
<explicitIncludes />
<explicitExcludes />
</component>
</project>

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GisDevelop_Exp/AttributeQuery.xaml Normal file
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<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>

190
GisDevelop_Exp/AttributeQuery.xaml.cs Normal file
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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;
}
}
}

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GisDevelop_Exp/ExtentLocationQueryResultsWindow.xaml Normal file
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<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>

100
GisDevelop_Exp/ExtentLocationQueryResultsWindow.xaml.cs Normal file
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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
}
}
}
}

15
GisDevelop_Exp/GisDevelop_Exp.csproj
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@ -16,4 +16,19 @@
</PackageReference> </PackageReference>
</ItemGroup> </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> </Project>

17
GisDevelop_Exp/LocationQueryResultsWindow.xaml Normal file
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@ -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>

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GisDevelop_Exp/LocationQueryResultsWindow.xaml.cs Normal file
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@ -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
}
}
}
}

2
GisDevelop_Exp/MainWindow.xaml
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@ -58,7 +58,7 @@
<MenuItem x:Name="Menu_Attribute_Query" Header="按属性查询" Click="Menu_Attribute_Query_OnClick"></MenuItem> <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 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_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> </MenuItem>
<Separator></Separator> <Separator></Separator>
<MenuItem x:Name="Menu_Clear_Selection" Header="清除选择"></MenuItem> <MenuItem x:Name="Menu_Clear_Selection" Header="清除选择"></MenuItem>

92
GisDevelop_Exp/MainWindow.xaml.cs
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@ -44,7 +44,10 @@ enum CURRENTOPERATION
Cal_Intersect, Cal_Intersect,
Cal_Intersection, Cal_Intersection,
Cal_Gene, Cal_Gene,
Cal_Buff Cal_Buff,
AttributeQuery,
ClickQuery,
ExtentQuery
} }
namespace GisDevelop_Exp namespace GisDevelop_Exp
@ -82,6 +85,8 @@ namespace GisDevelop_Exp
LocationQueryResultsWindow locationQueryResultsWindow; LocationQueryResultsWindow locationQueryResultsWindow;
private MapPoint _startLocation;
private readonly Dictionary<string, Basemap> _basemapOptions = new Dictionary<string, Basemap>() private readonly Dictionary<string, Basemap> _basemapOptions = new Dictionary<string, Basemap>()
{ {
{ "Streets (Raster)", new Basemap(BasemapStyle.OSMStreets) }, { "Streets (Raster)", new Basemap(BasemapStyle.OSMStreets) },
@ -161,14 +166,12 @@ namespace GisDevelop_Exp
for (int i = 0; i < fileDialog.FileNames.Length; i++) for (int i = 0; i < fileDialog.FileNames.Length; i++)
{ {
String filePath = fileDialog.FileNames.GetValue(i).ToString(); String filePath = fileDialog.FileNames.GetValue(i).ToString();
ShapefileFeatureTable openedFeature = await ShapefileFeatureTable.OpenAsync(filePath); ShapefileFeatureTable openedFeature = await ShapefileFeatureTable.OpenAsync(filePath);
FeatureLayer opendFeatureLayer = new FeatureLayer(openedFeature); FeatureLayer opendFeatureLayer = new FeatureLayer(openedFeature);
MainMapView.Map.OperationalLayers.Add(opendFeatureLayer); MainMapView.Map.OperationalLayers.Add(opendFeatureLayer);
await MainMapView.SetViewpointGeometryAsync(openedFeature.Extent); await MainMapView.SetViewpointGeometryAsync(openedFeature.Extent);
} }
} }
AddLayerNameToList(); 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 IInputElement ie = (IInputElement)sender;//转换事件宿主对象为IInputElement对象
IReadOnlyList< IdentifyLayerResult> results =await IReadOnlyList< IdentifyLayerResult> results =await
@ -1029,6 +1032,81 @@ namespace GisDevelop_Exp
locationQueryResultsWindow.Activate();//使子窗体处于激活状态 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) 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) private void Menu_Query_Point_OnClick(object sender, RoutedEventArgs e)
{ {
selByGeometryType = 1;//设置其值为1 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;
}
} }
} }

28
GisDevelop_Exp/QueryResult.cs Normal file
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@ -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));
}
}

14
GisDevelop_Exp/QueryResultWindow.xaml Normal file
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@ -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>

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@ -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
}
}
}
}
}