GridSplitter Not present - wpf

Question

I use this in code behind to test how to add a grid splitter programmatically. (I know, don't use code behind - But this is one of those rare cases I need to. (I think))
public partial class ContainerView : Window, IContainerView
{
[ImportingConstructor]
public ContainerView()
{
InitializeComponent();
SetUp();
}
public void SetUp()
{
_grid = new Grid();
//Single column/single row
_grid.ColumnDefinitions.Add(new ColumnDefinition());
_grid.ColumnDefinitions.Add(new ColumnDefinition());
_grid.ColumnDefinitions.Add(new ColumnDefinition());
_grid.RowDefinitions.Add(new RowDefinition());
_grid.RowDefinitions.Add(new RowDefinition());
var button1 = new Button();
button1.Content = "Btn 1";
button1.Margin = new Thickness(5);
Grid.SetRow(button1, 0);
Grid.SetColumn(button1, 0);
var button2 = new Button();
button2.Content = "Btn 2";
button2.Margin = new Thickness(5);
Grid.SetRow(button2, 1);
Grid.SetColumn(button2, 2);
_grid.Children.Add(button1);
_grid.Children.Add(button2);
var splitterV = new GridSplitter();
Grid.SetRowSpan(splitterV, _grid.RowDefinitions.Count);
splitterV.VerticalAlignment = VerticalAlignment.Stretch;
splitterV.HorizontalAlignment = HorizontalAlignment.Right;
splitterV.ShowsPreview = true;
splitterV.Background = Brushes.Black;
Width = 5;
_grid.Children.Add(splitterV);
Grid.SetColumn(splitterV, 1);
Content = _grid;
}
I can see the two buttons, but the middle column is empty. The GridSplitter is not shown. What am I doing wrong?

Answer 1

You are absolutely correct but you are setting Window's width instead of GridSpitter's width & also you have to give it's ResizeBehaviour.
Instead of this :
Width = 5;
Set GridSpitter's Width & It's ResizeBehavior as :
splitterV.ResizeBehavior = GridResizeBehavior.PreviousAndNext;
splitterV.Width = 5;