如何在WPF活动处理程序中使用async调用
我在WPF中使用异步调用的WPF中有这个活动处理程序。
private void Button_Click(object sender, RoutedEventArgs e)
{
var folderStructure = restApiProvider.GetFolderStructure();
}
这是getFolderStructure（）的实现：
public async Task<IList<string>> GetFolderStructure()
{
var request = new RestRequest(string.Empty, Method.Get);
var cancellationTokenSource = new CancellationTokenSource();
var response = await client.GetAsync(request, cancellationTokenSource.Token);
return JsonConvert.DeserializeObject<IList<string>>(response.Content);
}
我需要从getFolderStructure（）中获取数据以继续在应用程序中，但这是我获得的输出：
如果我添加foldersstructure.wait（）;呼叫无法完成，并且整个应用程序都会被卡住。但是，如果我更改var foldersstructure = restapiprovider.getFolderStructure（）; restapiprovider.getFolderStructure（）; 呼叫立即完成并且固定不发生。
我想念什么？
I have this event handler in WPF with async call.
private void Button_Click(object sender, RoutedEventArgs e)
{
var folderStructure = restApiProvider.GetFolderStructure();
}
Here is the implementation of GetFolderStructure():
public async Task<IList<string>> GetFolderStructure()
{
var request = new RestRequest(string.Empty, Method.Get);
var cancellationTokenSource = new CancellationTokenSource();
var response = await client.GetAsync(request, cancellationTokenSource.Token);
return JsonConvert.DeserializeObject<IList<string>>(response.Content);
}
I need to get the data from GetFolderStructure() in order to continue in the app but this is the output I get:
If I add folderStructure.Wait(); the call doesn't complete itself and the whole app get stuck. However if I change var folderStructure = restApiProvider.GetFolderStructure(); to restApiProvider.GetFolderStructure(); the call is completed immediately and stuck doesn't occure.
What am I missing?
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使调用方法异步并等待结果：
Make the calling method async and await the result: