Use animation to change window size in WPF

问题:

I am looking a way to animate the resizing of a window, lets say that I have a window with Height=300 and Width=300, I have 2 buttons, when I click the first button the window size must change to Height=600 and Width=600 and when I click the other button the window size must back to the original size, well I can do this simply changing the Height and Width properties, but I would like to use something like Storyboard - DoubleAnimation to give the impression that the window size is changing gradually.

I haven't used Storyboard - DoubleAnimation so if anyone can give me some tips I would appreciate it.

回答1:

You cannot animate two properties in parallel Below code can help you animate the Height and Width of Window named myWindow

<Button Content="Click">
       <Button.Triggers>
           <EventTrigger  RoutedEvent="Button.Click">
               <EventTrigger.Actions>
                     <BeginStoryboard >
                           <Storyboard  RepeatBehavior="Forever" AutoReverse="False">
                               <DoubleAnimation  Storyboard.TargetName="myWindow"
                                      Storyboard.TargetProperty = "(Window.Height)"
                                        To="300" Duration="0:0:5"/>
                                <Storyboard  RepeatBehavior="Forever" AutoReverse="False">

                                    <DoubleAnimation  Storyboard.TargetName="myWindow"
                                      Storyboard.TargetProperty = "(Window.Width)"
                                        To="300" Duration="0:0:5"/>
                                </Storyboard>
                            </Storyboard>
                        </BeginStoryboard>

                    </EventTrigger.Actions>
                </EventTrigger>
            </Button.Triggers>
        </Button>