[英]C# How to make sure one async method executes after another async method
[英]Calling one method after another while using Async in one of the method in C#
执行objMy_HelloWorldCompleted
之后,我需要调用CallServiceCompleted()
方法。 当前,在执行objMy_HelloWorldCompleted
之前,将调用CallServiceCompleted。
protected void btnCheck_Click(object sender, EventArgs e) {
Task taskA = Task.Factory.StartNew(() => CallServices());
taskA.Wait();
//CallServices();
if(taskA.IsCompleted ) {
CallServiceCompleted();
}
}
private void CallServiceCompleted() {
lblServicesCompleted.Text = "Work Completed";
}
private void CallServices() {
myITSSEVR.myserv objMy = new myITSSEVR.myserv();
string s = "New Line";
objMy.HelloWorldCompleted += objMy_HelloWorldCompleted;
objMy.HelloWorldAsync(s);
}
void objMy_HelloWorldCompleted(object sender, myITSSEVR.HelloWorldCompletedEventArgs e) {
string s2 = (string)e.UserState;
lblName.Text = e.Result.ToString();
}
有Page.RegisterAsyncTask处理点击事件:
protected void btnAsyncPostBack_Click(object sender, EventArgs e) {
RegisterAsyncTask(new PageAsyncTask(MyMethodAsync));
}
private async Task MyMethodAsync(object sender, EventArgs e, CancellationToken cancellationToken) {
var sum = await GetSumAsync();
lblMessage.Text = string.Format("Sum = {0}", sum);
}
链接到论坛主题。
还有关于StackOverflow的类似问题
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