WPF简易记事本示例：探索XAML与功能设计

Window x:Class="test7.wndMain"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="WPF实例--TextReader" Height="513" Width="602" 
     Closing="Window_Closing" Loaded="Window_Loaded" Name="Window"
     WindowStartupLocation="CenterScreen">
            <Grid Name="grid1" ShowGridLines="False" Background="DarkGoldenrod">
                <Grid.RowDefinitions>
                    <RowDefinition Height="30" />
                    <RowDefinition Height="416*" />
                    <RowDefinition Height="29" />
                </Grid.RowDefinitions>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="200" />
                    <ColumnDefinition Width="417*" />
                </Grid.ColumnDefinitions>
                <Menu Grid.ColumnSpan="2" Name="menu1" FontSize="15" Background="DarkKhaki">
                    <MenuItem Header="开始" Name="miStart" Background="DarkKhaki">
                        <MenuItem Header="关于" Name="miAbout" Click="miAbout_Click" Background="LightCoral" />
                        <Separator />
                        <MenuItem Header="退出" Name="MiExit" Click="MiExit_Click" Background ="LightCoral" />
                    </MenuItem>
                </Menu>
                <TreeView Grid.Row="1" Margin="0,9" Name="tvDic" 
                  SelectedItemChanged="tvDic_SelectedItemChanged" 
                  MouseDoubleClick="tvDic_MouseDoubleClick"/>
                <GridSplitter Grid.Column="1" Margin="6,0,0,0" Name="gridSplitter1" 
                      MinWidth="2" HorizontalAlignment="Left" Width="2" Grid.Row="1" 
                      Background="Beige" />