WPF加载动画(WPF Loading animation)

WPF加载动画(WPF Loading animation)

我有一个ListView ，其中包含许多要在搜索中加载的项目。 我想为用户提供更丰富的用户界面，以便在加载时， 我会显示一个旋转圆圈（从AJAX等待中获知） 。

我意识到我必须进入Threads或其他东西，但是因为我以前从未在WPF中做过这些，所以我确信在WPF（或简单的BackgroundWorker）中有比Threads更好的东西。

无论如何，关键是在加载时显示该动画。 任何想法？ 谢谢！

I Have a ListView with many Items that is to be loaded in search. And I'd like to provide user the richer user interface so that when loading, I'd display a rotating circle (known from AJAX waiting).

I realize that I'll have to go into Threads or something, but as I've never done this before in WPF, I'm sure there is something better than Threads in WPF (or a simpe BackgroundWorker).

Anyways, the point is to display that animation while loading. Any idea? Thanks!

最满意答案

好的，我现在有了一个有效的解决方案。

我有一个包含该动画的UserControl 。 它位于我的XAML代码中的某个位置，如下所示： <customControls:LoadingAnimation x:Name="LoadingAnimation" /> 。 通过调用neede加载此控件

LoadingAnimation.Show();

现在当我点击一个Button来完成耗时的工作时，在我调用BeginInvoke（）之前，我加载了这个动画。

然后，当努力工作完成后，我调用LoadingAnimation.Hide(). 很简单！ 我为其他人添加代码：

private void SearchClick(object sender, RoutedEventArgs e) { LoadingAnimation.Show(); new StringDelegate(DoSearch).BeginInvoke("TextToSearch", null, null); } private void DoSearch(string searchText) { object result = /* Do the time consuming work */ Dispatcher.BeginInvoke(DispatcherPriority.Normal, new ResultDelagate(UpdateUserInterface), result); } private void UpdateUserInterface(object result) { LoadingAnimation.Hide(); DataContext = result as /* what you want */; }

OK I've got a working solution now.

I have a UserControl that contains that animation. It is located somewhere in my XAML code like this: <customControls:LoadingAnimation x:Name="LoadingAnimation" />. This control is loaded when neede by calling

LoadingAnimation.Show();

Now when I click on a Button to do the time-consuming work, before I call BeginInvoke() I load that animation.

Then when the hard work is finished I call LoadingAnimation.Hide(). Very simple! I add code for the others:

private void SearchClick(object sender, RoutedEventArgs e) { LoadingAnimation.Show(); new StringDelegate(DoSearch).BeginInvoke("TextToSearch", null, null); } private void DoSearch(string searchText) { object result = /* Do the time consuming work */ Dispatcher.BeginInvoke(DispatcherPriority.Normal, new ResultDelagate(UpdateUserInterface), result); } private void UpdateUserInterface(object result) { LoadingAnimation.Hide(); DataContext = result as /* what you want */; }