RadControls for WPF

RadNumericUpDown inherits several common events that can be used to improve the functionality of the control.

Here is a brief list of all events exposed by RadNumericUpDown.

• BindingValidationError - Inherited from System.Windows.FrameworkElement
• GotFocus - Inherited from System.Windows.UIElement
• KeyDown - Inherited from System.Windows.UIElement
• KeyUp - Inherited from System.Windows.UIElement
• LayoutUpdated - Inherited from System.Windows.FrameworkElement
• Loaded - Inherited from System.Windows.FrameworkElement
• LostFocus - Inherited from System.Windows.UIElement)
• MouseEnter - Inherited from System.Windows.UIElement
• MouseLeave - Inherited from System.Windows.UIElement
• MouseLeftButtonDown - Inherited from System.Windows.UIElement
• MouseLeftButtonUp - Inherited from System.Windows.UIElement
• MouseMove - Inherited from System.Windows.UIElement
• SizeChanged - Inherited from System.Windows.FrameworkElement
• ValueChanged - Inherited from System.Windows.Controls.Primitives.RangeBase

Here is an example of how to use the ValueChanged event that is raised whenever the value of RadNumericUpDown is changed:

CopyC#

public void Events()
        {
            RadNumericUpDown numeric = new RadNumericUpDown();
            numeric.ValueChanged += new RoutedPropertyChangedEventHandler<double>(OnNumericValueChanged);
            numeric.Value = 10;
        }
        private void OnNumericValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        {
             RadWindow.Alert(String.Format("New value: {0}, Old value: {1}", e.NewValue, e.OldValue));
        }

CopyVB.NET

Private Sub Events()
        Dim numeric As RadNumericUpDown = New RadNumericUpDown
        AddHandler numeric.ValueChanged, AddressOf OnNumericValueChanged
        numeric.Value = 10;
    End Sub
    Private Sub OnNumericValueChanged(ByVal sender As Object, ByVal e As RoutedPropertyChangedEventArgs(Of double))
        RadWindow.Alert(String.Format("New value: {0}, Old value: {1}", e.NewValue, e.OldValue))
    End Sub