protected override void OnNavigatedFrom(NavigationEventArgs e)
{
if (e.NavigationMode == NavigationMode.Back)
{
timestamp = "0";
topicId = "";
selectType = Grobal.all;
genderType = Sex.index;
obslist = null;
Topic_gg.Visibility = Visibility.Collapsed;
obsListView.Items.Clear();
}
}
private async Task LoadData()
{
LoadProgress.IsActive = true;
LoadMenu();
try
{
var postdata = Class.HttpPostUntil.GetBasicPostData();
postdata.Add(new KeyValuePair <string, string>("timestamp", timestamp));
postdata.Add(new KeyValuePair <string, string>("selectType", ((int)selectType).ToString()));
postdata.Add(new KeyValuePair <string, string>("genderType", ((int)genderType).ToString()));
postdata.Add(new KeyValuePair <string, string>("topicId", topicinfo.topicIdInt));
var json = await Class.HttpPostUntil.HttpPost(Class.Data.Urls.Playground.getMessageByTopicId, new Windows.Web.Http.HttpFormUrlEncodedContent(postdata));
if (json != null)
{
json = Windows.Data.Json.JsonObject.Parse(json)["data"].GetObject().ToString();
obslist = Class.Data.Json.DataContractJsonDeSerialize <Class.Model.Playground.Topic>(json);
if (obslist.gg_BO != null)
{
Topic_gg.DataContext = obslist.gg_BO;
Topic_gg.Visibility = Visibility.Visible;
}
if (obslist.messageBOs != null && obslist.messageBOs.Count > 0)
{
if (obslist.messageBOs[0].studentBO == null)
{
obslist.messageBOs.RemoveAt(0);
}
}
if (obslist.basicBOs != null)
{
obsListView.Items.Clear();
foreach (var item in obslist.basicBOs)
{
obsListView.Items.Add(item);
}
obsListView.SelectionMode = ListViewSelectionMode.Single;
obsListView.SelectionChanged += ObsListView_SelectionChanged;
timestamp = obslist.basicBOs[obslist.basicBOs.Count - 1].issueTime.ToString();
}
}
}
catch (Exception)
{
Class.Tools.ShowMsgAtFrame("网络有异常");
}
LoadProgress.IsActive = false;
}
private async void FollowTopic(object sender, RoutedEventArgs e)
{
var btn = sender as Button;
var data = btn.DataContext as Class.Model.Playground.Main.TopicItem;
if (data.isFollow == 0)
{
var result = await Class.Until.Friday.Playground.FollowTopic(data.topicIdInt);
if (result)
{
Class.Tools.ShowMsgAtFrame("已关注:" + data.nameStr);
timestamp = "0";
topicId = "";
selectType = Grobal.all;
genderType = Sex.index;
obslist = null;
Topic_gg.Visibility = Visibility.Collapsed;
obsListView.Items.Clear();
await LoadData();
}
else
{
Class.Tools.ShowMsgAtFrame("操作失败");
}
}
else
{
var result = await Class.Until.Friday.Playground.UnFollowTopic(data.topicIdInt);
if (result)
{
Class.Tools.ShowMsgAtFrame("已取消关注:" + data.nameStr);
//await LoadTopicList();
}
else
{
Class.Tools.ShowMsgAtFrame("操作失败");
}
}
}
