本文整理匯總了C#中AsyncResult.Cancel方法的典型用法代碼示例。如果您正苦於以下問題：C# AsyncResult.Cancel方法的具體用法？C# AsyncResult.Cancel怎麽用？C# AsyncResult.Cancel使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類AsyncResult的用法示例。
在下文中一共展示了AsyncResult.Cancel方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: ScanTableCancelAsync
public void ScanTableCancelAsync()
{
if (!HasAsyncTableScanner) {
return;
}
for (var r = 0; r < 5; ++r) {
var c = 0;
using (var asyncResult = new AsyncResult(
(ctx, cells) =>
{
foreach (var cell in cells) {
if (c == CountA) {
return AsyncCallbackResult.Abort;
}
++c;
}
return AsyncCallbackResult.Continue;
})) {
table.BeginScan(asyncResult);
asyncResult.Join();
Assert.IsNull(asyncResult.Error, asyncResult.Error != null ? asyncResult.Error.ToString() : string.Empty);
Assert.IsTrue(asyncResult.IsCompleted);
Assert.IsTrue(asyncResult.IsCancelled);
Assert.AreEqual(CountA, c);
// The official Hypertable version does not support re-using of the future object using the thrift API
if (!IsThrift) {
c = 0;
table.BeginScan(
asyncResult,
(ctx, cells) =>
{
c += cells.Count;
return AsyncCallbackResult.Continue;
});
Assert.IsFalse(asyncResult.IsCompleted);
Assert.IsFalse(asyncResult.IsCancelled);
asyncResult.Join();
Assert.IsNull(asyncResult.Error, asyncResult.Error != null ? asyncResult.Error.ToString() : string.Empty);
Assert.IsTrue(asyncResult.IsCompleted);
Assert.IsFalse(asyncResult.IsCancelled);
Assert.AreEqual(CountA + CountB + CountC, c);
}
}
using (var asyncResult = new AsyncResult(delegate { return AsyncCallbackResult.Continue; })) {
table.BeginScan(asyncResult);
Thread.Sleep(500);
asyncResult.Cancel();
Assert.IsTrue(asyncResult.IsCancelled);
// The official Hypertable version does not support re-using of the future object using the thrift API
if (!IsThrift) {
c = 0;
table.BeginScan(
asyncResult,
(ctx, cells) =>
{
c += cells.Count;
return AsyncCallbackResult.Continue;
});
Assert.IsFalse(asyncResult.IsCancelled);
asyncResult.Join();
Assert.IsNull(asyncResult.Error, asyncResult.Error != null ? asyncResult.Error.ToString() : string.Empty);
Assert.IsTrue(asyncResult.IsCompleted);
Assert.IsFalse(asyncResult.IsCancelled);
Assert.AreEqual(CountA + CountB + CountC, c);
}
}
}
}