silverlight之布局控件

传统布局(canvas, grid, stackpanel)

http://www.cnblogs.com/Terrylee/archive/2008/03/07/Silverlight2-step-by-step-part3.html

silverlight3新增的布局

http://space.itpub.net/12639172/viewspace-590777

<UserControl
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    x:Class="Silverlight1.ColorChange"
    d:DesignWidth="640" d:DesignHeight="480">

    <Grid x:Name="LayoutRoot">
        <Grid.RowDefinitions>
            <RowDefinition></RowDefinition>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="300"></ColumnDefinition>
            <ColumnDefinition Width="200"></ColumnDefinition>
        </Grid.ColumnDefinitions>

        <StackPanel Margin="20" Grid.Column="0">
            <TextBlock Text="red"></TextBlock><Slider Name="sliRed" Maximum="255" Value="255"></Slider>
            <TextBlock Text="blue"></TextBlock><Slider Name="sliblue" Maximum="255" Value="255"></Slider>
            <TextBlock Text="green"></TextBlock><Slider Name="sligreen" Maximum="255" Value="255"></Slider>
            <TextBlock Text="alpha"></TextBlock><Slider Name="slialpha" Maximum="255" Value="255"></Slider>
        </StackPanel>
        <StackPanel Grid.Column="1">
            <Rectangle x:Name="rect_Color" Height="80" Fill="Blue" Margin="20">
            </Rectangle>
            <TextBlock FontSize="12"><Run Text="Color"/></TextBlock>
            <TextBox x:Name="HexColor" Width="160" Height="30" Text="#FF6600" Margin="10,5" FontSize="11"/>
        </StackPanel>
    </Grid>
</UserControl>
<!--
margin属性 左上右下
Name相当于asp.net的ID
 -->

public ColorChange()
        {
            // 为初始化变量所必需
            InitializeComponent();
            changeColor((byte)slialpha.Value, (byte)sliRed.Value, (byte)sliblue.Value, (byte)sligreen.Value);
            slialpha.ValueChanged += new RoutedPropertyChangedEventHandler<double>(sliRed_ValueChanged);
            sliRed.ValueChanged += new RoutedPropertyChangedEventHandler<double>(sliRed_ValueChanged);
            sliblue.ValueChanged += new RoutedPropertyChangedEventHandler<double>(sliRed_ValueChanged);
            sligreen.ValueChanged += new RoutedPropertyChangedEventHandler<double>(sliRed_ValueChanged);
        }

        void sliRed_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        {
            changeColor((byte)slialpha.Value, (byte)sliRed.Value, (byte)sliblue.Value, (byte)sligreen.Value);
        }

        private void changeColor(byte alpha, byte red,byte blue,byte green) {
            Color color = Color.FromArgb(alpha, red, green, blue);

            rect_Color.Fill = new SolidColorBrush(color);
            HexColor.Text = color.ToString();
        }