CreepingLineAnimation.CreepingLineAnimationCompleted Event

Occurs when the creeping line animation is completed in the digital gauge control.

Namespace: DevExpress.Xpf.Gauges

Assembly: DevExpress.Xpf.Gauges.v20.2.dll

NuGet Packages: DevExpress.WindowsDesktop.Wpf.Gauges, DevExpress.Wpf.Gauges

Declaration

C#

public event CreepingLineAnimationCompletedEventHandler CreepingLineAnimationCompleted

VB.NET

Public Event CreepingLineAnimationCompleted As CreepingLineAnimationCompletedEventHandler

Event Data

The CreepingLineAnimationCompleted event's data class is EventArgs.

Remarks

Use the CreepingLineAnimationCompleted event to perform any action after the creeping line animation is completed. For example, it allows you to demonstrate numerous animation effects sequentially.

Example

The following sample demonstrates how to use creeping line and blinking animation effects to imitate an advertising indicator board.

To accomplish this task, it is necessary to create a CreepingLineAnimation object and assign it to the SymbolViewBase.Animation property. Then, handle the CreepingLineAnimationCompleted event and assign a new BlinkingAnimation object to the SymbolViewBase.Animation property.

Note that in this example, the two texts have a different number of symbols: the first (“Do you want to learn more?”) - 26, the second (“www.devexpress.com”) - 18 characters.

To prevent animation of space symbols in the second text and demonstrate the creeping line animation for the entire text, the DigitalGaugeControl.SymbolCount, CreepingLineAnimation.StartSpaces and CreepingLineAnimation.AdditionalSpaces properties are set to the values that correspond to the required number of characters.

View Example

MainWindow.xaml.vb

Imports Microsoft.VisualBasic
Imports System
Imports System.Windows
Imports DevExpress.Xpf.Gauges

Namespace WpfApplication1

    Partial Public Class MainWindow
        Inherits Window
        Public Sub New()
            InitializeComponent()
        End Sub

        Private Sub OnCreepingLineAnimationCompleted(ByVal sender As Object, ByVal e As EventArgs)
            Dim blinking As New BlinkingAnimation()
            matrix.Animation = blinking
            digitalGaugeControl1.Text = "www.devexpress.com"
        End Sub

    End Class
End Namespace

MainWindow.xaml

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:dxga="http://schemas.devexpress.com/winfx/2008/xaml/gauges"
        Title="MainWindow" Height="350" Width="900" >
    <Grid>
        <dxga:DigitalGaugeControl Name="digitalGaugeControl1" 
                                  Text="Do you want to learn more?" 
                                  SymbolCount="18" VerticalAlignment="Center">
            <dxga:DigitalGaugeControl.Layers>
                <dxga:DigitalGaugeLayer />
            </dxga:DigitalGaugeControl.Layers>
            <dxga:DigitalGaugeControl.SymbolView>
                <dxga:MatrixView8x14 x:Name="matrix" >
                    <dxga:MatrixView8x14.Animation>
                        <dxga:CreepingLineAnimation RefreshTime="00:00:00.3"
                              StartSpaces="18" AdditionalSpaces="26" 
                              CreepingLineAnimationCompleted="OnCreepingLineAnimationCompleted"/>
                    </dxga:MatrixView8x14.Animation>
                </dxga:MatrixView8x14>
            </dxga:DigitalGaugeControl.SymbolView>
        </dxga:DigitalGaugeControl>
    </Grid>
</Window>

MainWindow.xaml.cs

using System;
using System.Windows;
using DevExpress.Xpf.Gauges;

namespace WpfApplication1 {

    public partial class MainWindow : Window {
        public MainWindow() {
            InitializeComponent();
        }

        private void OnCreepingLineAnimationCompleted(object sender, EventArgs e) {
            BlinkingAnimation blinking = new BlinkingAnimation();
            matrix.Animation = blinking;
            digitalGaugeControl1.Text = "www.devexpress.com";
        }

    }
}