WPF DataGrid - get row number which mouse cursor is on

Question

I am looking to get the row number of which the mouse cursor is on in a DataGrid (So basically on a MouseEnter event) so I can get the DataGridRow item of which the ItemSour

Answer 1

If you access the DataGridRow object that your mouse is over, then you can find its row index using the DataGridRow.GetIndex method:

private void Event(object sender, MouseEventArgs e)
{
    HitTestResult hitTestResult = 
        VisualTreeHelper.HitTest(m_DataGrid, e.GetPosition(m_DataGrid));
    DataGridRow dataGridRow = hitTestResult.VisualHit.GetParentOfType();
    int index = dataGridRow.GetIndex();
}

The GetParentOfType method is actually an extension method that I use:

public static T GetParentOfType(this DependencyObject element) where T : DependencyObject
{
    Type type = typeof(T);
    if (element == null) return null;
    DependencyObject parent = VisualTreeHelper.GetParent(element);
    if (parent == null && ((FrameworkElement)element).Parent is DependencyObject) parent = ((FrameworkElement)element).Parent;
    if (parent == null) return null;
    else if (parent.GetType() == type || parent.GetType().IsSubclassOf(type)) return parent as T;
    return GetParentOfType(parent);
}