wpf 随记

 （1）<Window.Resources> 

   <local:Human x:Key="human" Child="ABC"/>   //类

  </Window.Resources>

 

（2）获得Silverlight对象宿主的方法：Silverlight对象当前宿主的URL是

string url= App.Current.Host.Source.ToString();

（3）

x:Code标记可以将原本呆在后置代码文件里的C#代码搬到XAML文件中。x:Code的内容必须使用<![CDATA[…]]>进行转义。

<Window x:Class="MyFirstWpfApplication.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="300" Width="300"> 
    <Grid>
       <StackPanel>
                     <Button Content="按钮" Click="Button_Click"/>
        </StackPanel>
        <x:Code> 
            <![CDATA[
                private void Button_Click(object sender, RoutedEventArgs e)
                {
                    MessageBox.Show("x:Code hello!!!");
                }
            ]]>
        </x:Code>
    </Grid>
</Window>

（4）：   给image添加提示信息 

<Image Source="hudie.jpg"  Width="110" Height="110"
            Tag="My　Home" Canvas.Left="30" Canvas.Top="20"  
            MouseEnter="Image_BlurEffect_MouseEnter" MouseLeave="Image_BlurEffect_MouseLeave"   Cursor="Hand">
            <Image.ToolTip >　
                 My Home
            </Image.ToolTip>

（5）：动画添加背景音乐

 <MediaElement x:Name="audio1_mp3" HorizontalAlignment="Right" Margin="0,0,161,161" VerticalAlignment="Bottom" Width="0" Height="0" Stretch="Fill"/>

 <Storyboard x:Key="Storyboard1">
   <MediaTimeline BeginTime="00:00:00" RepeatBehavior="Forever" Source="audio1.mp3" Storyboard.TargetName="audio1_mp3" d:DesignTimeNaturalDuration="236.416"/>

</Storyboard>

 

 （6）：wpf 多值绑定

接下来看一下WPF中如何进行多值绑定

1.不需要转换的值

<Window
    x:Class="WpfApplicationSample.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">
    <Grid>
        <!--WPF 单值绑定-->
        <TextBlock
            Text="{Binding Title}"></TextBlock>

        <!--WPF 多值绑定,结合StringFormat-->
        <TextBlock>
            <TextBlock.Text>
                <MultiBinding
                    StringFormat=" {0}-{1}">
                    <Binding
                        Path="Title"></Binding>
                    <Binding
                        Path="Time"></Binding>
                </MultiBinding>
            </TextBlock.Text>

        </TextBlock>
    </Grid>
</Window>

 

2转换

<Window
    x:Class="WpfApplicationSample.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"
    xmlns:local="clr-namespace:WpfApplicationSample">

    <Window.Resources>
        <local:MultiValueConverterSample
            x:Key="cv"></local:MultiValueConverterSample>
    </Window.Resources>
    <Grid>
        <!--WPF 单值绑定-->
        <TextBlock
            Text="{Binding Title}"></TextBlock>

        <!--WPF 多值绑定,结合StringFormat-->
        <TextBlock>
            <TextBlock.Text>
                <MultiBinding
                    StringFormat=" {0}-{1}">
                    <Binding
                        Path="Title"></Binding>
                    <Binding
                        Path="Time"></Binding>
                </MultiBinding>
            </TextBlock.Text>

        </TextBlock>

        <!--WPF 多值绑定，结合Converter-->

        <TextBlock>
            <TextBlock.Text>
                <MultiBinding
                    Converter="{StaticResource cv}">
                    <Binding
                        Path="Title"></Binding>
                    <Binding
                        Path="Time"></Binding>
                </MultiBinding>
            </TextBlock.Text>
        </TextBlock>

    </Grid>
</Window>

看起来很好理解，对吧？这是WPF中为我们默认就提供的功能，确实很方便。

但是，这个特性（多值绑定）却没有在Silverlight中实现。

 

（7）：按钮圆角修改模板

<!--圆角button-->
    <Style TargetType="Button">
        <Setter Property="FontSize" Value="15"/>
        <Setter Property="Margin" Value="4"/>
        <Setter Property="FontWeight" Value="Black"/>
        <Setter Property="Foreground" Value="WhiteSmoke"/>
        <Setter Property="BorderThickness" Value="0"/>
        <Setter Property="Background" Value="#FFFF4300"/>
        <Setter Property="Width" Value="100"/>
        <Setter Property="Height" Value="35"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type Button}">
                    <Border BorderBrush="{TemplateBinding Control.BorderBrush}" BorderThickness="0" CornerRadius="16" Name="PART_Background">
                        <Border.Background>
                            <LinearGradientBrush EndPoint="0,1" StartPoint="0,0">
                                <GradientStop Color="White" Offset="0.0" />
                                <GradientStop Color="#FFFF4300" Offset="0.5" />
                                <GradientStop Color="White" Offset="0.0" />
                            </LinearGradientBrush>
                        </Border.Background>
                        <ContentPresenter Content="{TemplateBinding ContentControl.Content}" HorizontalAlignment="Center" VerticalAlignment="Center" />
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

（8）：

带超链接的TEXTBLOCK

<TextBlock>
    <Hyperlink 
        Click="ForgetPassword">
        忘记密码
    </Hyperlink>
</TextBlock>

 （9）:

后台打开网页

 private void OpenWeb(object sender, RoutedEventArgs e)
{
    System.Diagnostics.Process.Start("http://www.cnblogs.com/submarine");
}