本文整理匯總了C#中System.Exception.Select方法的典型用法代碼示例。如果您正苦於以下問題：C# Exception.Select方法的具體用法？C# Exception.Select怎麽用？C# Exception.Select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System.Exception的用法示例。
在下文中一共展示了Exception.Select方法的2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: RunFromResult
public static void RunFromResult()
{
// Test FromResult with value type
{
var results = new[] { -1, 0, 1, 1, 42, Int32.MaxValue, Int32.MinValue, 42, -42 }; // includes duplicate values to ensure that tasks from these aren't the same object
Task<int>[] tasks = new Task<int>[results.Length];
for (int i = 0; i < results.Length; i++)
tasks[i] = Task.FromResult(results[i]);
// Make sure they've all completed
for (int i = 0; i < tasks.Length; i++)
Assert.True(tasks[i].IsCompleted, "TaskRtTests.RunFromResult: > FAILED: Task " + i + " should have already completed (value)");
// Make sure they all completed successfully
for (int i = 0; i < tasks.Length; i++)
Assert.True(tasks[i].Status == TaskStatus.RanToCompletion, "TaskRtTests.RunFromResult: > FAILED: Task " + i + " should have already completed successfully (value)");
// Make sure no two are the same instance
for (int i = 0; i < tasks.Length; i++)
{
for (int j = i + 1; j < tasks.Length; j++)
{
Assert.False(tasks[i] == tasks[j], "TaskRtTests.RunFromResult: > FAILED: " + i + " and " + j + " created tasks should not be equal (value)");
}
}
// Make sure they all have the correct results
for (int i = 0; i < tasks.Length; i++)
Assert.True(tasks[i].Result == results[i], "TaskRtTests.RunFromResult: > FAILED: Task " + i + " had the result " + tasks[i].Result + " but should have had " + results[i] + " (value)");
}
// Test FromResult with reference type
{
var results = new[] { new object(), null, new object(), null, new object() }; // includes duplicate values to ensure that tasks from these aren't the same object
Task<Object>[] tasks = new Task<Object>[results.Length];
for (int i = 0; i < results.Length; i++)
tasks[i] = Task.FromResult(results[i]);
// Make sure they've all completed
for (int i = 0; i < tasks.Length; i++)
Assert.True(tasks[i].IsCompleted, "TaskRtTests.RunFromResult: > FAILED: Task " + i + " should have already completed (ref)");
// Make sure they all completed successfully
for (int i = 0; i < tasks.Length; i++)
Assert.True(tasks[i].Status == TaskStatus.RanToCompletion, "TaskRtTests.RunFromResult: > FAILED: Task " + i + " should have already completed successfully (ref)");
// Make sure no two are the same instance
for (int i = 0; i < tasks.Length; i++)
{
for (int j = i + 1; j < tasks.Length; j++)
{
Assert.False(tasks[i] == tasks[j], "TaskRtTests.RunFromResult: > FAILED: " + i + " and " + j + " created tasks should not be equal (ref)");
}
}
// Make sure they all have the correct results
for (int i = 0; i < tasks.Length; i++)
Assert.True(tasks[i].Result == results[i], "TaskRtTests.RunFromResult: > FAILED: Task " + i + " had the wrong result (ref)");
}
// Test FromException
{
var exceptions = new Exception[] { new InvalidOperationException(), new OperationCanceledException(), new Exception(), new Exception() }; // includes duplicate values to ensure that tasks from these aren't the same object
var tasks = exceptions.Select(e => Task.FromException<int>(e)).ToArray();
// Make sure they've all completed
for (int i = 0; i < tasks.Length; i++)
Assert.True(tasks[i].IsCompleted, "Task " + i + " should have already completed");
// Make sure they all completed with an error
for (int i = 0; i < tasks.Length; i++)
Assert.True(tasks[i].Status == TaskStatus.Faulted, " > FAILED: Task " + i + " should have already faulted");
// Make sure no two are the same instance
for (int i = 0; i < tasks.Length; i++)
{
for (int j = i + 1; j < tasks.Length; j++)
{
Assert.True(tasks[i] != tasks[j], " > FAILED: " + i + " and " + j + " created tasks should not be equal");
}
}
// Make sure they all have the correct exceptions
for (int i = 0; i < tasks.Length; i++)
{
Assert.NotNull(tasks[i].Exception);
Assert.Equal(1, tasks[i].Exception.InnerExceptions.Count);
Assert.Equal(exceptions[i], tasks[i].Exception.InnerException);
}
// Make sure we handle invalid exceptions correctly
Assert.Throws<ArgumentNullException>(() => { Task.FromException<int>(null); });
// Make sure we throw from waiting on a faulted task
Assert.Throws<AggregateException>(() => { var result = Task.FromException<object>(new InvalidOperationException()).Result; });
// Make sure faulted tasks are actually faulted. We have little choice for this test but to use reflection,
// as the harness will crash by throwing from the unobserved event if a task goes unhandled (everywhere
// other than here it's a bad thing for an exception to go unobserved)
var faultedTask = Task.FromException<object>(new InvalidOperationException("uh oh"));
//.........這裏部分代碼省略.........
示例2: FailureInfo
internal FailureInfo(string rpFilename, Exception[] rpExceptions)
{
Filename = rpFilename;
ExceptionContent = rpExceptions.Select(r => r.ToString()).Join(Environment.NewLine);
}