# Timeline does not allow mod of same object twice?

**URL:** <https://forums.fusetools.com/t/timeline-does-not-allow-mod-of-same-object-twice/3984>\
**Category:** How-to Discussions\
**Created:** [October 20, 2016, 7:27pm UTC](https://forums.fusetools.com/t/timeline-does-not-allow-mod-of-same-object-twice/3984 "2016-10-20T19:27:52Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![ted.ekeroth](https://avatars.discourse-cdn.com/v4/letter/t/a5b964/32.png) [@ted.ekeroth](https://forums.fusetools.com/u/ted.ekeroth)\
**Post date:** [October 20, 2016, 7:27pm UTC](https://forums.fusetools.com/t/timeline-does-not-allow-mod-of-same-object-twice/3984/1 "2016-10-20T19:27:52Z")

</div>

Hey,  
I have this code

```auto

 	<Timeline ux:Name="timeline">
 		<Move Target="sp1" Y="-400" Duration="0" />
    	<Change tvWelcome.Opacity="1" Duration="0.8" Delay="1.5"/>
    	<Move Target="sp1" Y="400" Duration="1" Delay="0.5" Easing="BounceOut" />
    	<Change tvWelcome.Opacity="0" Duration="0.2" Delay="3"/>
    </Timeline>

```

But, for some reason the tvWelcome text does not fade to opacity=0, but it does fade in (0–\>1) in the second line of the timeline.

What am I missing?

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<div class="post-metadata">

**Author:** ![Remi\_Pedersen](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/remi_pedersen/32/432_2.png) [@Remi\_Pedersen](https://forums.fusetools.com/u/Remi_Pedersen)\
**Post date:** [October 21, 2016, 11:38am UTC](https://forums.fusetools.com/t/timeline-does-not-allow-mod-of-same-object-twice/3984/2 "2016-10-21T11:38:42Z")

</div>

You’ll need to use multiple keyframes on the same change operator in order to do this. You can see how in the examples [here](https://www.fusetools.com/docs/fuse/triggers/timeline) and [here](https://www.fusetools.com/docs/fuse/animations/keyframe)

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<div class="post-metadata">

**Author:** ![ted.ekeroth](https://avatars.discourse-cdn.com/v4/letter/t/a5b964/32.png) [@ted.ekeroth](https://forums.fusetools.com/u/ted.ekeroth)\
**Post date:** [October 21, 2016, 11:45am UTC](https://forums.fusetools.com/t/timeline-does-not-allow-mod-of-same-object-twice/3984/3 "2016-10-21T11:45:30Z")

</div>

Thanks for that. I think that it might be a good idea to update that in the docs and stuff, to make it clearer, cause its not obvious that keyframes is required for such operations =)

I will try it out shortly =)

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<div class="post-metadata">

**Author:** ![Remi\_Pedersen](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/remi_pedersen/32/432_2.png) [@Remi\_Pedersen](https://forums.fusetools.com/u/Remi_Pedersen)\
**Post date:** [October 21, 2016, 12:01pm UTC](https://forums.fusetools.com/t/timeline-does-not-allow-mod-of-same-object-twice/3984/4 "2016-10-21T12:01:26Z")

</div>

I’ll make sure the docs are updated. 🙂

FYI: What happens in the case you described is that each animator works until the end of the parent timeline. In other words: they animate to the end of their duration and then **hold that value**. This means that multiple animators on the same target will give unexpected results.

---

<div class="post-metadata">

**Author:** ![ted.ekeroth](https://avatars.discourse-cdn.com/v4/letter/t/a5b964/32.png) [@ted.ekeroth](https://forums.fusetools.com/u/ted.ekeroth)\
**Post date:** [October 21, 2016, 12:10pm UTC](https://forums.fusetools.com/t/timeline-does-not-allow-mod-of-same-object-twice/3984/5 "2016-10-21T12:10:33Z")

</div>

Thanks for your input, appreciated =)

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<div class="post-metadata">

**Author:** ![ted.ekeroth](https://avatars.discourse-cdn.com/v4/letter/t/a5b964/32.png) [@ted.ekeroth](https://forums.fusetools.com/u/ted.ekeroth)\
**Post date:** [October 21, 2016, 7:41pm UTC](https://forums.fusetools.com/t/timeline-does-not-allow-mod-of-same-object-twice/3984/6 "2016-10-21T19:41:23Z")

</div>

Actually, that didnt work as expected either. My code:

```auto

<Page ux:Class="SplashScreen">
	
	<StackPanel ux:Name="sp1" X="50%" Y="25%" Anchor="50%,50%">
    	<AlfaPro ux:Name="alfaProIcon" />
    	<TextView ux:Name="tvWelcome" Value="Welcome to Alfa Pro" Alignment="Center" Opacity="0" TextColor="#fff" />
	</StackPanel>

 	<Timeline ux:Name="timeline">
 		<Move Target="sp1" Y="-400" Duration="0" />
 		<Change Target="tvWelcome.Opacity" Delay="1.5">
 			<Keyframe Value="1" Time="0.8" />
 			<Keyframe Value="1" Time="1.8" />
 			<Keyframe Value="0" Time="1.8" />
 		</Change>
    	<Move Target="sp1" Y="400" Duration="1" Delay="0.5" Easing="BounceOut" />
    </Timeline>

	<WhileActive>
	    <Change timeline.TargetProgress="1" />
    </WhileActive >

      
</Page>

```

As you can see, I change the opacity of the text to 1 in 0.8 seconds, then I want to wait for 1.8 seconds with opactity 1, then face to opacity 0 in 1.8 seconds.

However, it stops at full opacity. If I remove the second (middle) keyframe, it works (from 0–\>1 and then immediately from 1–\>0), but now, it seems to stop at the second one.

What am I missing?

---

<div class="post-metadata">

**Author:** ![ted.ekeroth](https://avatars.discourse-cdn.com/v4/letter/t/a5b964/32.png) [@ted.ekeroth](https://forums.fusetools.com/u/ted.ekeroth)\
**Post date:** [October 21, 2016, 8:09pm UTC](https://forums.fusetools.com/t/timeline-does-not-allow-mod-of-same-object-twice/3984/7 "2016-10-21T20:09:13Z")

</div>

Right, so using TimeDelta instead of Time does the trick, but that is not very clear in the docs.

From [https://www.fusetools.com/docs/fuse/animations/keyframe](https://www.fusetools.com/docs/fuse/animations/keyframe) I read:

 ![file](https://s3.us-east-2.amazonaws.com/fuse-legacy-forum-assets/E6Qq2rapw9HD-image-1477080335383.png)

I think maybe it should be reiterated that its absolute times; I missed that from 10 to 15 it takes 0.5 seconds, when I first read it I thought “they have a mis-print here”, but you didnt =)