WPF Animate Grid.VisibilityProperty in code

Question

What animation class would allow me to change the Visibility (not opacity) of a Grid object with a Storyboard instance in code (not XAML)?

So that I can set the to, from, and duration properties before adding it to the storyboard.

[ObjectAnimationUsingKeyFrames](https://msdn.microsoft.com/en-us/library/system.windows.media.animation.objectanimationusingkeyframes(v=vs.110).aspx) — Clemens, Oct 20 '16 at 16:01

score 0 · Answer 1 · edited May 23 '17 at 12:00

0

You can use an ObjectAnimationUsingKeyFrames with some DiscreteObjectKeyFrame.

You can find an example here. The only work to do is translating that to C# code. (Which shouldn't be a huge problem.)

edited May 23 '17 at 12:00

Community

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answered Oct 20 '16 at 16:02

haindl

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score 0 · Accepted Answer · answered Oct 20 '16 at 18:38

This is the code necessary to animate the visibility.

    DiscreteObjectKeyFrame dk;

    ObjectAnimationUsingKeyFrames ok;

    ok = new ObjectAnimationUsingKeyFrames();
    dk = new DiscreteObjectKeyFrame();

    Storyboard.SetTarget(ok, myGrid);
    Storyboard.SetTargetProperty(ok, new PropertyPath(Grid.VisibilityProperty));
    dk.KeyTime = TimeSpan.FromSeconds(0.1);
    dk.Value = Visibility.Hidden;
    ok.KeyFrames.Add(dk);

    sb.Children.Add(ok);

WPF Animate Grid.VisibilityProperty in code

2 Answers2