有人知道用于使用生成单元格对Grid列进行大小调整的算法吗？(WPF)

<Grid>
    <Grid.ColumnDefinitions>
       <ColumnDefinition Width="*" />
       <ColumnDefinition Width="2*" />
       <ColumnDefinition Width="*" />
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
        <RowDefinition Height="Auto" />
        <RowDefinition Height="*" />
    </Grid.RowDefinitions>
    <TextBlock Grid.Column="0" Grid.Row="0" Text="Column 1" />
    <TextBlock Grid.Column="1" Grid.Row="0" Text="Column 2" />
    <TextBlock Grid.Column="2" Grid.Row="0" Text="Column 3" />
    <TextBlock Grid.Column="0" Grid.Row="1" Text="Row 2, Column 1" />
    <TextBlock Grid.Column="1" Grid.Row="1" Text="Row 2, Column 2" />
    <TextBlock Grid.Column="2" Grid.Row="1" Text="Row 2, Column 3" />
</Grid>

<Grid>
    <Grid.ColumnDefinitions>
       <ColumnDefinition Width="*" />
       <ColumnDefinition Width="Auto" />
       <ColumnDefinition Width="*" />
    </Grid.ColumnDefinitions>
    <GridSplitter Grid.Column="1" Width="5" HorizontalAlignment="Stretch" />
    <TextBlock Grid.Column="0" Text="Column 1" />
    <TextBlock Grid.Column="2" Text="Column 3" />
</Grid>