CODEWITHSUNDEEP
c#wpfanimation
Martin Heralecký
Martin Heralecký

Reputation: 5779

Change DoubleAnimation From property

I have defined Storyboard with DoubleAnimation in it and I need to change From value in code-behind before starting the animation. How can I do it?

This doesn't work - I get an exception Object reference not set to an instance of an object.

<Storyboard x:Key="SB_showhide" Duration="0:0:1">
    <DoubleAnimation x:Name="move" Storyboard.TargetProperty="(Window.Left)" From="0" To="500" />
</Storyboard>

((DoubleAnimation)FindName("move")).From = 200;
BeginStoryboard((Storyboard)FindResource("SB_showhide"));

Upvotes: 1

Views: 953

Answers (1)

Clemens
Clemens

Reputation: 128061

This should work:

var storyboard = (Storyboard)Resources["SB_showhide"];
var move = (DoubleAnimation)storyboard.Children[0];
move.From = 200;

Upvotes: 5

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