wpf学习笔记（3）《都是自己根据网络资源学习记录的仅供参考》

我们写个前台的小例子来看下吧。。。在Window元素下增加下面两行代码：用来设置是否修改窗体的大小ResizeMode="CanMinimize"用来设置窗体显示的大小是否是内容大小SizeToContent="WidthAndHeight"在窗体的xaml中加入

   < StackPanel >      < Button HorizontalAlignment = " Center "  Margin = " 24 " >       Just a Button     </ Button >      < Ellipse Width = " 200 "              Height = " 100 "              Margin = " 24 "              Stroke = " Red "              StrokeThickness = " 10 " />      < ListBox Width = " 100 "              Height = " 100 "              Margin = " 24 " >        < ListBoxItem > Sunday </ ListBoxItem >        < ListBoxItem > Monday </ ListBoxItem >        < ListBoxItem > Tuesday </ ListBoxItem >      </ ListBox >    </ StackPanel >

  运行可以看到一个按钮、一个圆圈、一个列表框。

我们把代码修改成下面：

< Window  x:Class ="FullWPFWCFWWF.Window1"     xmlns ="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x ="http://schemas.microsoft.com/winfx/2006/xaml"     Title ="FullWPFWCFWWF"     SizeToContent ="WidthAndHeight"     ResizeMode ="CanMinimize"  Height ="400"  Width ="260" >    < StackPanel >      < Button  HorizontalAlignment ="Center"  Margin ="24"  Click ="ButtonOnClick" >       Just a Button     </ Button >      < Ellipse  Name ="elips"              Width ="200"              Height ="100"              Margin ="24"              Stroke ="Red"              StrokeThickness ="10" />      < ListBox  Name ="lstbox"              Width ="100"              Height ="100"              Margin ="24"  SelectionChanged ="ListBoxOnSelection" >      </ ListBox >    </ StackPanel > </ Window >

这里可以看到我们给按钮增加了个Click事件。来看看后台代码：

 

using  System; using  System.Collections.Generic; using  System.Text; 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  System.ServiceModel; namespace  FullWPFWCFWWF ... {    /**//// <summary>    /// Interaction logic for Window1.xaml    /// </summary>    public partial class Window1 : System.Windows.Window    ...{        public Window1()        ...{            InitializeComponent();            foreach (System.Reflection.PropertyInfo prop in typeof(Brushes).GetProperties())            ...{                lstbox.Items.Add(prop.Name);            }            Title = "MyNewWindow";        }        void ButtonOnClick(object sender, RoutedEventArgs args)        ...{            Button btn = sender as Button;            MessageBox.Show(btn.Content);        }        void ListBoxOnSelection(object sender,SelectionChangedEventArgs e)         ...{            ListBox lstbox = sender as ListBox;            string strItem = lstbox.SelectedItem as string;            System.Reflection.PropertyInfo prop = typeof(Brushes).GetProperty(strItem);            elips.Fill = (Brush)prop.GetValue(null,null);        }    }} 运行看看结果？ ｏｋ就写到这里了．