WPF系列

一、ListView绑定数据源XML

 //前端代码
 1 <Window x:Class="ListView读取XML数据.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow"
 Height="350" Width="525">
     <Window.Resources>
<XmlDataProvider x:Key="Student" Source="Book.xml">
         </XmlDataProvider>
     </Window.Resources>
     <Grid>
         <ListView ItemsSource="{Binding Source={StaticResource Student},XPath=/Person/Information}">
         </ListView>
     </Grid>
 </Window>

 //XML文件
 1 <?xml version="1.0" encoding="utf-8" ?>
 <Person>
     <Information>
       <Name>张三</Name>
       <Age>22</Age>
       <Sex>男</Sex>
     </Information>
     <Information>
       <Name>李四</Name>
       <Age>25</Age>
       <Sex>男</Sex>
     </Information>
 </Person>

//效果截图

二、保存数据到XML

             XmlDocument xml = new XmlDocument();
             string str_path = @"J:\WPF\test\XMLData.xml";
             XmlNode root = null;
             if (File.Exists(str_path))
             {
                 xml.Load(str_path);
                 root = xml.SelectSingleNode("Person");
             }

             XmlNodeList nodelist = xml.SelectNodes("/Person/Student/Infor");
             XmlElement inf,adr, stu, info, UN, IP, DB;
             bool bl_exist = true;
             foreach (XmlNode node in nodelist)
             {
                 if (node.ChildNodes[].InnerText == (ServerName.Text + ".").ToString() &&
                     node.ChildNodes[].InnerText == (UserName.Text + ".").ToString() &&
                     node.ChildNodes[].InnerText ==DataName.Text)
                 {
                     bl_exist = false;
                     break;
                 }
             }
             if (bl_exist)
             {
                 stu = xml.CreateElement("Student"); //创建元素
                 info = xml.CreateElement("Infor");
                 UN = xml.CreateElement("UserName");
                 IP = xml.CreateElement("IP");
                 DB = xml.CreateElement("DataBaseName");

                 inf = xml.CreateElement("Information");
                 adr = xml.CreateElement("Address");
                 adr.InnerText = (UserName.Text + "." + ServerName.Text + "." + DataName.Text).ToString();
                 root.AppendChild(inf);
                 inf.AppendChild(adr);

                 UN.InnerText = (UserName.Text + ".").ToString();
                 IP.InnerText = (ServerName.Text + ".").ToString();
                 DB.InnerText = DataName.Text;
                 stu.AppendChild(info);
                 info.AppendChild(UN);
                 info.AppendChild(IP);
                 info.AppendChild(DB);
                 root.AppendChild(stu);
                 MessageBox.Show("数据保存成功");
             }
             xml.Save(str_path);   

三、页面切换出现淡入淡出效果和图表控件页面重新加载动画

1、把Window窗口改为NavigationWindow导航切换窗口，添加源文件Market.xaml
<NavigationWindow x:Class="MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="1080" Width="3840" WindowState="Maximized"  Source="Market.xaml" WindowStyle="None" ShowsNavigationUI="False" ResizeMode="NoResize" Navigating="NavigationWindow_Navigating"
        MouseLeftButtonDown="NavigationWindow_MouseLeftButtonDown">
</NavigationWindow>

2、下一个页面切换的时候用以下代码就可实现：
NavigationService.Navigate(new Uri("Power.xaml", UriKind.Relative));

3、淡入淡出效果

        private void NavigationWindow_Navigating(object sender, NavigatingCancelEventArgs e)
        {
            if (Content != null && !_allowDirectNavigation)
            {
                e.Cancel = true;
                _navArgs = e;
                this.IsHitTestVisible = false;
                DoubleAnimation da = new DoubleAnimation(0.3d, new Duration(TimeSpan.FromMilliseconds()));
                da.Completed += FadeOutCompleted;
                this.BeginAnimation(OpacityProperty, da);
            }
            _allowDirectNavigation = false;
        }
        private void FadeOutCompleted(object sender, EventArgs e)
        {
            (sender as AnimationClock).Completed -= FadeOutCompleted;

            this.IsHitTestVisible = true;

            _allowDirectNavigation = true;
            switch (_navArgs.NavigationMode)
            {
                case NavigationMode.New:
                    if (_navArgs.Uri == null)
                    {
                        NavigationService.Navigate(_navArgs.Content);
                    }
                    else
                    {
                        NavigationService.Navigate(_navArgs.Uri);
                    }
                    break;
                case NavigationMode.Back:
                    NavigationService.GoBack();
                    break;

                case NavigationMode.Forward:
                    NavigationService.GoForward();
                    break;
                case NavigationMode.Refresh:
                    NavigationService.Refresh();
                    break;
            }

            Dispatcher.BeginInvoke(DispatcherPriority.Loaded,
                (ThreadStart)delegate()
                {
                    DoubleAnimation da = new DoubleAnimation(1.0d, new Duration(TimeSpan.FromMilliseconds()));
                    this.BeginAnimation(OpacityProperty, da);
                });
        }
        private bool _allowDirectNavigation = false;
        private  NavigatingCancelEventArgs _navArgs = null;