[不是问题] WPF按钮可见性在一段时间后发生变化 [英] [Not a question] WPF button visibility change after certain time of period

问题描述

我是wpf的新手。我有代码，我想在某段时间内显示按钮，然后改变他的可见性。



这是我的代码

故事板sb = 新故事板（）; 
 ObjectAnimationUsingKeyFrames objAn =  new  ObjectAnimationUsingKeyFrames（）; 
 objAn.BeginTime = TimeSpan.FromSeconds（ 0 ）; 
 Storyboard.SetTarget（objAn，dock）; 
 Storyboard.SetTargetProperty（objAn， new  PropertyPath（UIElement.VisibilityProperty））; 
 DiscreteObjectKeyFrame objd =  new  DiscreteObjectKeyFrame（Visibility.Visible，KeyTime.FromTimeSpan（TimeSpan.FromSeconds（ 0 ）））; 
 objAn.KeyFrames.Add（objd）; 
 DiscreteObjectKeyFrame objd1 =  new  DiscreteObjectKeyFrame（Visibility.Hidden，KeyTime.FromTimeSpan（TimeSpan.FromSeconds（ 2 ）））; 
 objAn.KeyFrames.Add（objd1）; 
 sb.Children.Add（objAn）; 
 sb.BeginAnimation（UIElement.VisibilityProperty，objAn）; 
 

dock 是我的按钮名称



等待回复。

解决方案

它更容易控制xaml代码中的动画，其中你的故事板在那里撒谎而不是创建故事板代码隐藏。 。

Hi,
I am new in wpf. I have code in which I want to show button for certain time of period and then change his visibilty.

Here is my code

Storyboard sb = new Storyboard();
           ObjectAnimationUsingKeyFrames objAn = new ObjectAnimationUsingKeyFrames();
           objAn.BeginTime = TimeSpan.FromSeconds(0);
           Storyboard.SetTarget(objAn, dock);
           Storyboard.SetTargetProperty(objAn, new PropertyPath(UIElement.VisibilityProperty));
           DiscreteObjectKeyFrame objd = new DiscreteObjectKeyFrame(Visibility.Visible, KeyTime.FromTimeSpan(TimeSpan.FromSeconds(0)));
           objAn.KeyFrames.Add(objd);
           DiscreteObjectKeyFrame objd1 = new DiscreteObjectKeyFrame(Visibility.Hidden, KeyTime.FromTimeSpan(TimeSpan.FromSeconds(2)));
           objAn.KeyFrames.Add(objd1);
           sb.Children.Add(objAn);
           sb.BeginAnimation(UIElement.VisibilityProperty, objAn);

dock is my button name

Waiting for reply.

解决方案

its easier to control animation in xaml code where your storyboard lied there rather than creating storyboard in codebehind. . .

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