Silverlight自学笔记布局基础

布局

Canvas	绝对布局	通过控件的Canvas.Top 和Canvas.Left 定义位置
StackPanel	流布局
Grid	类似Html的Table

Canvas

<Canvas Background="Green">
            <Button Width="100" Height="30" Content="Button1"></Button>
            <Button Width="100" Height="30" Content="Button2" Canvas.Top="40" Canvas.Left="10"></Button>
</Canvas>

如图

StackPanel

<StackPanel VerticalAlignment="Center" Orientation="Horizontal" Background="Yellow">
            <Button Width="100" Height="30" Background="Green" Content="Button1" Margin="10"></Button>
            <Button Width="100" Height="30" Background="Green" Content="Button2"></Button>
            <Button Background="Green" Content="Button3"></Button>
        </StackPanel>

几个属性:

VerticalAlignment="Center" Orientation="Horizontal"   HorizontalAlignment="Center". 若不设置任何属性. 那么将铺满整个上级容器

<StackPanel Width="500" Height="300" Orientation="Vertical" Background="Gray"  HorizontalAlignment="Center">
            <Button Content="Button1" Width="100"></Button>
            <StackPanel  Orientation="Horizontal" HorizontalAlignment="Center">
                <Button Content="Button2" Width="100"></Button>
                <Button Content="Button3" Width="100"></Button>
                <Button Content="Button4" Width="100"></Button>
            </StackPanel>
            <Button Content="Button5" Width="100"></Button>
        </StackPanel>

效果图

Grid

效果和HtmlTable一样. 可是写法不一样.下面展示一个三行三列的表格

<Grid x:Name="LayoutRoot" ShowGridLines="True"><!--显示边框 -->
        <Grid.RowDefinitions>
            <RowDefinition Height="2*" />*号. 表示把面板高度分为4份.第一行占两份(即50%),剩余两行为面板高度的25%
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="150" />
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="150" />
        </Grid.ColumnDefinitions>
    </Grid>

下面我们在第一行第一列添加一个Button. Button在Grid中, 通过智能感知, 能发现多了一些属性比如说Grid.Row等,通过他们确定该Button在表格中的位置.比如

<Button Grid.Column="2" Grid.Row="1"   Content="Button2" Height="20"  HorizontalAlignment="Left"></Button>

如同在单元格里面添加按钮一样,我们还可以添加表中表. 在上面的button下面加上如下代码

<Grid ShowGridLines="True" Grid.Column="1" Grid.Row="1">
            <Grid.ColumnDefinitions>
                <ColumnDefinition></ColumnDefinition>
                <ColumnDefinition></ColumnDefinition>
            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
                <RowDefinition></RowDefinition>
                <RowDefinition></RowDefinition>
            </Grid.RowDefinitions>
            <Button Content="表括?中D表括?按恪?钮￥" Width="100" Height="30" ></Button>
        </Grid>

WrapPanel

会自动换行或者换列的Stackpanel布局

DockPanel

停靠在上右下左中的最规矩的布局