如何使用相对宽度值创建动态ColumnDefinition？

Question

我找到了这样的代码来动态创建一个Grid和一些列:

Grid grd = new Grid();
ColumnDefinition c = new ColumnDefinition(); 
c.Width = new GridLength(50, GridUnitType.Pixel); 
. . .
grd.ColumnDefinitions.Add(c);

但是我想创建具有相对宽度的列,这些列对应于xaml中使用的"*":

<Grid.ColumnDefinitions>
    <ColumnDefinition Width="*" />
    <ColumnDefinition Width="*" />
    <ColumnDefinition Width="*" />
    <ColumnDefinition Width="4*" />
    <ColumnDefinition Width="*" />
    <ColumnDefinition Width="3*" />
    <ColumnDefinition Width="*" />
    <ColumnDefinition Width="*" />
  </Grid.ColumnDefinitions>

如何动态使用这些相对宽度值/比率？

Answer 1

好的,我在发布问题后想出来了:

. . .
ColumnDefinition c1 = new ColumnDefinition();
c1.Width = new GridLength(1, GridUnitType.Star);
ColumnDefinition c2 = new ColumnDefinition();
c2.Width = new GridLength(4, GridUnitType.Star);
ColumnDefinition c3 = new ColumnDefinition();
c3.Width = new GridLength(1, GridUnitType.Star);
ColumnDefinition c4 = new ColumnDefinition();
c4.Width = new GridLength(3, GridUnitType.Star);
ColumnDefinition c5 = new ColumnDefinition();
c5.Width = new GridLength(1, GridUnitType.Star);
. . .
grd.ColumnDefinitions.Add(c1);
. . .