Where is the WPF Numeric UpDown control?

I made my own;

the xaml

<Grid  Height="23" Margin="152,63,11,0" VerticalAlignment="Top">
    <TextBox x:Name="txtNum" x:FieldModifier="private" Text="0" TextChanged="txtNum_TextChanged" Margin="3,2,13,3" />
    <Button x:Name="cmdUp" x:FieldModifier="private" FontSize="10" Padding="0,-4,0,0" Content="▲" Width="10" Click="cmdUp_Click" Margin="33,2,1,13" />
    <Button x:Name="cmdDown" x:FieldModifier="private" FontSize="10" Padding="0,-4,0,0" Content="▼" Width="10" Click="cmdDown_Click" Margin="33,12,1,3" />
</Grid>

and the code behind

private int _numValue = 0;

public int NumValue
{
    get {  return _numValue; }
    set
    {
        _numValue = value;
        txtNum.Text = value.ToString();
    }
}

public NumberUpDown()
{
    InitializeComponent();
    txtNum.Text = _numValue.ToString();
}

private void cmdUp_Click(object sender, RoutedEventArgs e)
{
    NumValue++;
}

private void cmdDown_Click(object sender, RoutedEventArgs e)
{
    NumValue--;
}

private void txtNum_TextChanged(object sender, TextChangedEventArgs e)
{
    if (txtNum == null)
    {
        return;
    }

    if (!int.TryParse(txtNum.Text, out _numValue))
        txtNum.Text = _numValue.ToString();
}

Simply use the IntegerUpDown control in the Extended.Wpf.Toolkit You can use it like this:

1. Add to your XAML the following namespace:

   xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"

2. In your XAML where you want the control use:

   <xctk:IntegerUpDown Name="myUpDownControl" />