先看效果图，然后上代码：
<UserControl x:Class="MapClIEnt.PicMusic" 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" mc:Ignorable="d" d:DesignHeight="250" d:DesignWIDth="300"> <GrID x:name="LayoutRoot" Background="White" HorizontalAlignment="left" WIDth="300" Height="250" VerticalAlignment="top"> <border margin="0" borderBrush="#FF95C8F7" borderThickness="1" CornerRadius="8"> <border.Background> <linearGradIEntBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradIEntStop color="White" Offset="0"/> <GradIEntStop color="#FFBBD7EF" Offset="0.194"/> </linearGradIEntBrush> </border.Background> <border borderBrush="#FF95C8F7" borderThickness="1" margin="7,31,7,7" Background="White"> <GrID margin="-5,-26,-11,-8"> <GrID.RowDeFinitions> <RowDeFinition Height="0.096*"/> <RowDeFinition Height="0.904*"/> </GrID.RowDeFinitions> <border margin="6,4,13,96" GrID.Row="1" borderThickness="0.5"> <border margin="30,0"> <border.Background> <ImageBrush Stretch="Fill" ImageSource="Images/bg.png"/> </border.Background> <Image x:name="gcimg" margin="8,5"/> </border> </border> <GrID Height="86" margin="0" GrID.Row="1" VerticalAlignment="Bottom"> <ScrollVIEwer margin="6,-9,12,9" ScrollVIEwer.HorizontalScrollbarVisibility="HIDden" ScrollVIEwer.VerticalScrollbarVisibility="auto" borderThickness="0.5"> <TextBlock x:name="tbSKShortMes" textwrapPing="Wrap" Text="这里是水库的详细信息介绍内容" FontSize="14.667" FontFamily="Microsoft YaHei" Height="76" WIDth="276" HorizontalAlignment="Center" VerticalAlignment="Center" /> </ScrollVIEwer> </GrID> <StackPanel HorizontalAlignment="Right" WIDth="91" OrIEntation="Horizontal" margin="0,-4,4"> <Image x:name="imgStart" HorizontalAlignment="left" Height="25" margin="3,5,-5" WIDth="22" Source="Images/button_grey_play.png" MouseleftbuttonDown="imgStart_MouseleftbuttonDown" MouseleftbuttonUp="imgStart_MouseleftbuttonUp" tooltipService.tooltip="播放" Cursor="Hand"/> <Image x:name="imgPause" HorizontalAlignment="left" Height="25" margin="5,-5" WIDth="22" Source="Images/button_grey_pause.png" MouseleftbuttonDown="imgPause_MouseleftbuttonDown" MouseleftbuttonUp="imgPause_MouseleftbuttonUp" tooltipService.tooltip="暂停" Cursor="Hand"/> <Image x:name="imgEnd" HorizontalAlignment="left" Height="25" margin="5,-5" WIDth="22" Source="Images/button_grey_stop.png" MouseleftbuttonDown="imgEnd_MouseleftbuttonDown" MouseleftbuttonUp="imgEnd_MouseleftbuttonUp" tooltipService.tooltip="停止" Cursor="Hand"/> </StackPanel> <TextBlock x:name="gcNM" margin="105,129,3" textwrapPing="Wrap" Text="东风水库" FontWeight="Bold" Cursor="Hand" FontSize="14.667" FontFamily="Microsoft YaHei" Foreground="#FF0056FF" d:LayoutOverrIDes="WIDth,Height"/> <MediaElement x:name="media" HorizontalAlignment="Right" margin="0,104,3" WIDth="21"/> </GrID> </border> </border> </GrID></UserControl>using System;using System.Collections.Generic;using System.linq;using System.Net;using System.windows;using System.windows.Controls;using System.windows.documents;using System.windows.input;using System.windows.Media;using System.windows.Media.Animation;using System.windows.Shapes;using System.Text;using System.windows.Controls.Primitives;using System.windows.Media.Imaging;using MapClIEnt.ServiceReference1;using System.Collections.ObjectModel;namespace MapClIEnt{ public partial class PicMusic : UserControl { SK sk; //水库 HL hl; //河流 PGZ pgz; //排灌站 DF df; //堤防 SZ sz; //水闸 PWK pwk; //排污口 GSZ gsz; //供水站 string l_name; string l_ID; string l_type; public PicMusic() { InitializeComponent(); } #region 通用方法，只需要更改Show，在实例化窗体的时候，传入不同的参数即可 private Point _location; private bool _isShowing; private Popup _popup; private GrID _grID; private Canvas _canvas; private FrameworkElement _content; //初始化并显示d出窗体.公共方法在显示菜单项时调用 public voID Show(Point location,string name,string ID,string type) { this.l_name = name; this.l_ID = ID; this.l_type = type; /***************2013-05-22**************************/ this.gcNM.Text = name; //显示工程名称 if (_isShowing) throw new InvalIDOperationException(); _isShowing = true; _location = location; ConstructPopup(this); _popup.IsOpen = true; //处理标题的间距问题 string tmp = name; StringBuilder sb = new StringBuilder(); for (int i = 0; i < tmp.Length; i++) { sb.Append(tmp[i] + " "); } getDataSoapClIEnt clIEnt = new getDataSoapClIEnt(); clIEnt.getGcmediaByIDCompleted += new EventHandler<getGcmediaByIDCompletedEventArgs>(clIEnt_getGcmediaByIDCompleted); clIEnt.getGcmediaByIDAsync(ID,type); } voID clIEnt_getGcmediaByIDCompleted(object sender,getGcmediaByIDCompletedEventArgs e) { try { ObservableCollection<tb_GcmeDIA> Lists = e.Result; if (Lists.Count > 0) { foreach (tb_GcmeDIA item in Lists) { //工程名称 this.gcNM.Text = item.GCNM.Trim(); string[] s = { "ClIEntBin" }; //音频MP3文件 string urlM = App.Current.Host.source.OriginalString.ToString().Split(s,StringSplitoptions.RemoveEmptyEntrIEs)[0] + item.MP3URL.ToString().Trim(new char[] { '.','/' }); this.media.source = new Uri(urlM,UriKind.relativeOrabsolute); //图片文件 string urlA = App.Current.Host.source.OriginalString.ToString().Split(s,StringSplitoptions.RemoveEmptyEntrIEs)[0] + item.PICURL.ToString().Trim(new char[] { '.','/' }); Uri uri = new Uri(urlA,UriKind.relativeOrabsolute); BitmAPImage image = new BitmAPImage(uri); this.gcimg.source = image; //工程简要说明 this.tbSKShortMes.Text = item.MEMO; } } else { this.media.source = new Uri("sound.mp3",UriKind.relative); //音频资料 Uri uri = new Uri("Images/nopic.jpg",UriKind.relative); BitmAPImage image = new BitmAPImage(uri); this.gcimg.source = image; //工程图片 this.tbSKShortMes.Text = "暂无资料，请上传！"; //工程简要说明 } } catch (Exception) { this.media.source = new Uri("sound.mp3",UriKind.relative); //音频资料 Uri uri = new Uri("Images/nopic.jpg",UriKind.relative); BitmAPImage image = new BitmAPImage(uri); this.gcimg.source = image; //工程图片 this.tbSKShortMes.Text = "暂无资料，请上传！"; //工程简要说明 } } public voID Show(Point location) { if (_isShowing) throw new InvalIDOperationException(); _isShowing = true; _location = location; ConstructPopup(this); _popup.IsOpen = true; } //关闭d出窗体 public voID Close() { _isShowing = false; if (_popup != null) { _popup.IsOpen = false; } } //d出框外面点击则关闭该窗口 protected virtual voID OnClickOutsIDe() { Close(); } // 用GrID来布局，初始化d出窗体 //在GrID里面添加一个Canvas，用来监测菜单项外面的鼠标点击事件 private voID ConstructPopup(FrameworkElement _element) { if (_popup != null) return; _popup = new Popup(); _grID = new GrID(); _popup.Child = _grID; _canvas = new Canvas(); _canvas.MouseleftbuttonDown += (sender,args) => { OnClickOutsIDe(); }; _canvas.MouseRightbuttonDown += (sender,args) => { args.Handled = true; OnClickOutsIDe(); }; _canvas.Background = new SolIDcolorBrush(colors.transparent); _grID.Children.Add(_canvas); _content = _element; _content.HorizontalAlignment = HorizontalAlignment.left; _content.VerticalAlignment = VerticalAlignment.top; _content.margin = new Thickness(_location.X,_location.Y,0); _grID.Children.Add(_content); UpdateSize(); } /// <summary> /// 更新大小 /// </summary> private voID UpdateSize() { _grID.WIDth = Application.Current.Host.Content.ActualWIDth; _grID.Height = Application.Current.Host.Content.ActualHeight; if (_canvas != null) { _canvas.WIDth = _grID.WIDth; _canvas.Height = _grID.Height; } } #endregion #region WebService 调用方法及关闭窗体方法 public voID closeWindow(SK mp) { mp.LayoutRoot.Children.RemoveAt(mp.LayoutRoot.Children.Count - 1); } public voID closeWindow(HL mp) { mp.LayoutRoot.Children.RemoveAt(mp.LayoutRoot.Children.Count - 1); } public voID closeWindow(DF mp) { mp.LayoutRoot.Children.RemoveAt(mp.LayoutRoot.Children.Count - 1); } public voID closeWindow(PGZ mp) { mp.LayoutRoot.Children.RemoveAt(mp.LayoutRoot.Children.Count - 1); } public voID closeWindow(GSZ mp) { mp.LayoutRoot.Children.RemoveAt(mp.LayoutRoot.Children.Count - 1); } public voID closeWindow(PWK mp) { mp.LayoutRoot.Children.RemoveAt(mp.LayoutRoot.Children.Count - 1); } public voID closeWindow(SZ mp) { mp.LayoutRoot.Children.RemoveAt(mp.LayoutRoot.Children.Count - 1); } private voID imgStart_MouseleftbuttonDown(object sender,System.windows.input.MousebuttonEventArgs e) { // 在此处添加事件处理程序实现。 e.Handled = true; Uri uri = new Uri("Images/button_blue_play.png",UriKind.relative); BitmAPImage image = new BitmAPImage(uri); this.imgStart.source = image; //其他变成灰色图案 uri = new Uri("Images/button_grey_pause.png",UriKind.relative); BitmAPImage image2 = new BitmAPImage(uri); this.imgPause.source = image2; uri = new Uri("Images/button_grey_stop.png",UriKind.relative); BitmAPImage image3 = new BitmAPImage(uri); this.imgEnd.source = image3; } private voID imgStart_MouseleftbuttonUp(object sender,System.windows.input.MousebuttonEventArgs e) { // 在此处添加事件处理程序实现。 this.media.Play(); } private voID imgPause_MouseleftbuttonDown(object sender,System.windows.input.MousebuttonEventArgs e) { // 在此处添加事件处理程序实现。 e.Handled = true; Uri uri = new Uri("Images/button_blue_pause.png",UriKind.relative); BitmAPImage image = new BitmAPImage(uri); this.imgPause.source = image; //其他变成灰色图案 uri = new Uri("Images/button_grey_play.png",UriKind.relative); BitmAPImage image2 = new BitmAPImage(uri); this.imgStart.source = image2; uri = new Uri("Images/button_grey_stop.png",UriKind.relative); BitmAPImage image3 = new BitmAPImage(uri); this.imgEnd.source = image3; } private voID imgPause_MouseleftbuttonUp(object sender,System.windows.input.MousebuttonEventArgs e) { // 在此处添加事件处理程序实现。 this.media.Pause(); } private voID imgEnd_MouseleftbuttonDown(object sender,System.windows.input.MousebuttonEventArgs e) { // 在此处添加事件处理程序实现。 e.Handled = true; Uri uri = new Uri("Images/button_blue_stop.png",UriKind.relative); BitmAPImage image = new BitmAPImage(uri); this.imgEnd.source = image; //其他变成灰色图案 uri = new Uri("Images/button_grey_pause.png",UriKind.relative); BitmAPImage image2 = new BitmAPImage(uri); this.imgPause.source = image2; uri = new Uri("Images/button_grey_play.png",UriKind.relative); BitmAPImage image3 = new BitmAPImage(uri); this.imgStart.source = image3; } private voID imgEnd_MouseleftbuttonUp(object sender,System.windows.input.MousebuttonEventArgs e) { // 在此处添加事件处理程序实现。 this.media.Stop(); } #endregion }}/// <summary> /// 排灌站列表聚焦 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private voID dgPGZList_SelectionChanged(object sender,SelectionChangedEventArgs e) { ESRI.ArcGIS.ClIEnt.Projection.WebMercator mercator = new ESRI.ArcGIS.ClIEnt.Projection.WebMercator(); // 高亮和选中行相关的地图元素 DataGrID dataGrID = sender as DataGrID; int selectedindex = dataGrID.Selectedindex; if (selectedindex > -1) { tb_PGZ findResult = (tb_PGZ)dgPGZList.SelectedItem; //获取DataGrID的选中行，该DataGrID是数据的DataGrID的name属性值 Graphic g = new Graphic() { Geometry = mercator.FromGeographic(new MapPoint(double.Parse(findResult.Latitute.ToString().Trim()),double.Parse(findResult.Longitute.ToString().Trim()))),Symbol = LayoutRoot.Resources["DefaultMarkerSymbol"] as Symbol }; //保存属性 g.Attributes["Latitute"] = findResult.Latitute; //纬度 g.Attributes["Longitute"] = findResult.Longitute; //经度 g.Attributes["NM"] = findResult.BZNM; //名称 g.Attributes["ID"] = findResult.ID;//序号 ESRI.ArcGIS.ClIEnt.Geometry.Envelope selectedFeatureExtent = mercator.ToGeographic(g.Geometry).Extent; //选中点的位置 double expandPercentage = 1; //加数值后，聚焦（这里需要注意，进行地理坐标和墨卡托坐标的转换） double wIDthExpand = (selectedFeatureExtent.WIDth + 5) * (expandPercentage / 100); double heightExpand = (selectedFeatureExtent.Height + 5) * (expandPercentage / 100); ESRI.ArcGIS.ClIEnt.Geometry.Envelope displayExtent = new Envelope(WKIDConvert.lonlat2mercator(new MapPoint(selectedFeatureExtent.XMin - (wIDthExpand / 2),selectedFeatureExtent.YMin - (heightExpand / 2))),WKIDConvert.lonlat2mercator(new MapPoint(selectedFeatureExtent.XMax + (wIDthExpand / 2),selectedFeatureExtent.YMax + (heightExpand / 2)))) { SpatialReference = new SpatialReference(102100) }; try { //聚焦 myMap.ZoomTo(displayExtent); ShowFocus(g); } catch (Exception) { } //聚焦之后，将DataGrID中被选中记录的选中状态置空 dataGrID.Selectedindex = -1; //聚焦是加载到SL中间显示并自动添加Tip信息 Generaltransform gt = this.transformToVisual(Application.Current.RootVisual as UIElement); double x = browser.ClIEntWIDth; double y = browser.ClIEntHeight; Point offset = gt.transform(new Point(x / 2,y / 2)); double controltop = offset.Y - 125; double controlleft = offset.X - 300; Point p = new Point(controlleft,controltop); tip_Base.g_PicMusic = new PicMusic(); tip_Base.g_PicMusic.Show(p,g.Attributes["NM"].ToString(),g.Attributes["ID"].ToString(),"4"); } else { //不进行任何处理 } } 总结 以上是内存溢出为你收集整理的ArcGIS API for Silverlight 当DataGrid选中项时，地图聚焦d出窗口，并可以播放音频文件全部内容，希望文章能够帮你解决ArcGIS API for Silverlight 当DataGrid选中项时，地图聚焦d出窗口，并可以播放音频文件所遇到的程序开发问题。
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