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private void tv_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
{
var dv = (tv.SelectedItem as TreeViewItem).Header;
HttpClient client = new HttpClient();
client.BaseAddress = new Uri("http://localhost:19976/");
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
#region 注释这段代码就可以正确执行
HttpResponseMessage response = client.GetAsync("api/Department").Result;
response.EnsureSuccessStatusCode();
if (response.IsSuccessStatusCode)
{
var ds = response.Content.ReadAsAsync<IEnumerable<string>>();
}
#endregion
}
private async void tv_SelectedIemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
{
var dv = (tv.SelectedItem as TreeViewItem).Header;
HttpClient client = new HttpClient();
client.BaseAddress = new Uri("http://localhost:19976/");
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
#region 注释这段代码就可以正确执行
HttpResponseMessage response = await client.GetAsync("api/Department");
response.EnsureSuccessStatusCode();
if (response.IsSuccessStatusCode)
{
var ds = await response.Content.ReadAsAsync<IEnumerable<string>>();
}
#endregion
}
这样试试……
private async void tv_SelectedIemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
{
var dv = (tv.SelectedItem as TreeViewItem).Header;
//Thread thread = new Thread(NewMethod);
//thread.Starmrt();
await NewMethod();
}
private async Task NewMethod()
{
HttpClient client = new HttpClient();
client.BaseAddress = new Uri("http://localhost:19976/");
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
#region 注释这段代码就可以正确执行
HttpResponseMessage response = client.GetAsync("api/Department").Result;
response.EnsureSuccessStatusCode();
if (response.IsSuccessStatusCode)
{
var ds = await response.Content.ReadAsAsync<IEnumerable<string>>();
}
#endregion
}
这样问题依旧。