WPF布局（Layout）

StackPanel

特点：子元素一行或者一列排列

<StackPanel Background="#ECE9D8">
   <TextBlock Margin="3">Look for:</TextBlock>
   <ComboBox  Margin="3"/>
   <TextBlock Margin="3">Filtered by:</TextBlock>
   <ComboBox  Margin="3"/>
   <Button    Margin="3,5">Search</Button>
   <CheckBox  Margin="3">Search in titles only</CheckBox>
   <CheckBox  Margin="3">Match related words</CheckBox>
   <CheckBox  Margin="3">Search in previous results</CheckBox>
   <CheckBox  Margin="3">Highlight search hits (in topics)</CheckBox>
< /StackPanel>

WrapPanel

特点：和StackPanel类似，元素一行或一列排列，不同的是，如果行或列的剩余空间不够，会自动排列到下一行或下一列

<WrapPanel Background="Beige">
   <Button>One</Button>
   <Button>Two</Button>
   <Button>Three</Button>
   <Button>Four</Button>
   <Button>Five</Button>
   <Button>Six</Button>
   <Button>Seven</Button>
   <Button>Eight</Button>
< /WrapPanel>