本文整理汇总了C#中AsyncResult.Cancel方法的典型用法代码示例。如果您正苦于以下问题：C# AsyncResult.Cancel方法的具体用法？C# AsyncResult.Cancel怎么用？C# AsyncResult.Cancel使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类AsyncResult的用法示例。
在下文中一共展示了AsyncResult.Cancel方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
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);
}
}
}
}