WPF笔记(1.4 布局)——Hello，WPF！

Example  1 - 25 . A sample usage of the Grid panel
< Window  >
   < Grid >
     < Grid.RowDefinitions >
       < RowDefinition  />
       < RowDefinition  />
       < RowDefinition  />
     </ Grid.RowDefinitions >
     < Grid.ColumnDefinitions >
       < ColumnDefinition  />
       < ColumnDefinition  />
       < ColumnDefinition  />
     </ Grid.ColumnDefinitions >
     < Button Grid.Row = " 0 "  Grid.Column = " 0 "  Grid.ColumnSpan = " 2 " > A </ Button >
     < Button Grid.Row = " 0 "  Grid.Column = " 2 " > C </ Button >
     < Button Grid.Row = " 1 "  Grid.Column = " 0 "  Grid.RowSpan = " 2 " > D </ Button >
     < Button Grid.Row = " 1 "  Grid.Column = " 1 " > E </ Button >
     < Button Grid.Row = " 1 "  Grid.Column = " 2 " > F </ Button >
     < Button Grid.Row = " 2 "  Grid.Column = " 1 " > H </ Button >
     < Button Grid.Row = " 2 "  Grid.Column = " 2 " > I </ Button >
   </ Grid >
</ Window >

Example  1 - 26 . Arranging an image and text  in  a grid
< Button Width = " 100 "  Height = " 100 " >
   < Button.Content >
     < Grid >
       < Grid.RowDefinitions >
         < RowDefinition  />
         < RowDefinition  />
       </ Grid.RowDefinitions >
       < Image Grid.Row = " 0 "  Source = " tom.png "   />
       < TextBlock
        Grid.Row = " 1 "
        HorizontalAlignment = " Center " > Tom </ TextBlock >
     </ Grid >
   </ Button.Content >
</ Button >