WPF视频教程系列笔记

 

 

 

 

视频二：XAML基础

                        1.顶级元素 <Window></Window>,<Page></Page>,<Application></Application>

                        2. 名称空间 很重要。 默认名称空间：xmlns="" ；   另外名称空间：  xmlns:x=""   ； x是名称空间前缀 

                            x:Class="WpfApplication1.MainWindow" 是继续自Window类。

                        3. 简单属性：

                             实例1:简单属性

                             <Grid Name="Grid1"></Grid>

                             this.Title=this.Grid1.Name;

                             实例2：复杂属性,属性元素的方法

                             <Grid >

                             <Grid.Name>Grid1</Grid.Name>

                             <Button></Button>

                              </Grid>

                         4. 渐变的颜色

                              <Grid  Name="Grid1">

                                      <Grid.Background>

                                            <LinearGradientBrush>

                                              <LinearGradientBrush.GradientStops>

                                                 <GradientStop Offset="0.00" Color="Red"/>                                             

                                                 <GradientStop Offset="0.50" Color="Indigo"/>

                                                 <GradientStop Offset="1.00" Color="Violet"/>                                            

                                              </LinearGradientBrush.GradientStops>

                                              </LinearGradientBrush>

                                       </Grid.Background>

                               </Grid>

                           5. 附加的属性

                               <Button Content="Button1" HorizontalAlignment="Left" Margin="215,60,0,0" VerticalAlignment="Top" Width="75"/>
                              <Button Content="Button2" Grid.Row="1"  HorizontalAlignment="Left" Margin="215,38,0,0" VerticalAlignment="Top" Width="75"/>
                             <Button Content="Button3" Grid.Row="2" HorizontalAlignment="Left" Margin="215,47,0,0" VerticalAlignment="Top" Width="75" />

                            其中：Grid.Row 默认从0开始，默认不写， 这是一个附加属性。

                            6.特殊字符

                                特殊字符串‘<’使用 ‘&lt’代替 ,特殊字符串‘>’使用 ‘&gt’代替

                                空格字符：xml:space="preserve" 添加属性，可以完整显示空格。

                                <TextBox HorizontalAlignment="Left" Height="23" TextWrapping="Wrap" VerticalAlignment="Top" Width="465" xml:space="preserve">where this is "         "...</TextBox>

                            7. XAML事件

                               <Button Content="Button1" HorizontalAlignment="Left" Margin="215,60,0,0" VerticalAlignment="Top" Width="75" Click="Button_Click"/>

                                按钮的单击事件

 

 

 

视频三：只使用代码创建WPF应用程序（缺点，慢；优点，自由。）

                          补充知识点：使用partial关键字的类是可以互相补充的类。 关键WPF有三种方式：a.仅使用代码创建；b.仅使用页面创建;c.两者结合，相互补充。

                         

using System.Windows;
using System.Windows.Controls;
using System.Windows.Markup;

namespace _2014_10_09_WPF
{
    class Window1:Window
    {
        private Button button1;

        public Window1()
        {
            InitializeComponent();
        }
        private void InitializeComponent()
        {
             //设置窗体
            this.Width = 285;
            this.Height = 250;
            this.Left = this.Top = 100;
            this.Title = "Code_Only Window";
            //创建停靠面板对象
            DockPanel panel = new DockPanel();
            //创建按钮对象
            button1 = new Button();
            button1.Content = "Please click me.";
            button1.Margin = new Thickness(30);
            //事件
            button1.Click+=button1_Click;

            ////添加控件
            IAddChild container = panel;
            container.AddChild(button1);
            container = this;
            container.AddChild(panel);
        }
        private void button1_Click(object sender,RoutedEventArgs e)
        {
            button1.Content = "Thank you.";
        }
    }
}

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