Silverlight
Local
External
Grid
<Grid>
<Grid.ColumnDefinitions>
<!-- Minimum width of elements in this column -->
<ColumnDefinition Width="auto"/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<!-- Minimum hight of elements in this column -->
<RowDefinition Height="auto"/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
</Grid>