WPF ListView Star（“*”）大小

Question

I would like to fill the remaining area of a WPF ListView with a certain column.

I have been googling around and found the following solution:

<GridViewColumn Header="Error" DisplayMemberBinding="{Binding ErrorDescription}" 
   Width="{Binding RelativeSource={RelativeSource FindAncestor, 
   AncestorType={x:Type ListView}}, Converter={StaticResource WidtConvert}} />

And the converter:

public object Convert(object value, Type targetType, object parameter,
                      System.Globalization.CultureInfo culture)
{
  ListView l = value as ListView;
  GridView g = l.View as GridView;
  double total = 0;
  for (int i = 0; i < g.Columns.Count - 1; i++)
  {
    total += g.Columns[i].ActualWidth;
  }
  return (l.ActualWidth - total);
}

But the problem is that at the time that the converter is called, all columns including the ListView.ActualWidth is 0.

I do not want to use any code behind for example on the Listview_SizeChanged etc.

Answer 1

您可以将转换器从代码绑定到ListView控件的Loaded事件上的Width属性。在这种情况下，转换器将在控件完全加载并且实际宽度转移到转换器后被触发。