在示例中,您可以看到我在按钮单击时执行批量请求。之后,我需要使用回调中提供的信息,但不要冻结WebForms页面。我认为回调本身就是异步的,但显然我错了,因为在回调没有被处理之前,页面一直处于冻结状态。
batchRequest.Queue<Google.Apis.Calendar.v3.Data.Event>(
addRequest,
(content, error, i, message) => // callback
{
using (dbContext)
{
Event eventToUpdate = dbContextNewInstance.Events.FirstOrDefault(x => x.Id == dbObj.Id);
if (eventToUpdate != null)
{
eventToUpdate.GoogleCalendarMappingId = content.Id;
dbContextNewInstance.SubmitChanges();
}
}
});
batchRequest.ExecuteAsync();
*更新: 我做了这个实现,它的工作!到目前为止,我担心一切都是正确的方式,没有线程或数据库连接没有管理,伙计们?
batchRequest.Queue<Google.Apis.Calendar.v3.Data.Event>(
addRequest,
(content, error, i, message) => // callback
{
idsToMap[dbObj.Id] = content.Id; // A dictionary for my dbObj Id and the Id I receive from the remote API in the CALLBACK
});
Thread batchThread = new Thread(() => SubmitBatchRequest(batchRequest, idsToMap, connectionString));
batchThread.Start();
使用Thread的方法:
private static void SubmitBatchRequest(BatchRequest batchRequest, Dictionary<Guid, string> ids, string connectionString)
{
Thread.CurrentThread.IsBackground = true;
batchRequest.ExecuteAsync().GetAwaiter().GetResult(); // Send the batch request asynchronous
using (DataContext db = new DataContext(connectionString))
{
foreach (Guid dbObjId in ids.Keys)
{
Event eventToUpdate = db.Events.FirstOrDefault(x => x.Id == dbObjId);
if (eventToUpdate != null)
{
eventToUpdate.GoogleCalendarMappingId = ids[dbObjId];
}
}
// Thread.Sleep(50000);
db.SubmitChanges();
}
}