本文整理汇总了C#中History.Undo方法的典型用法代码示例。如果您正苦于以下问题：C# History.Undo方法的具体用法？C# History.Undo怎么用？C# History.Undo使用的例子？那么恭喜您, 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History的用法示例。
在下文中一共展示了History.Undo方法的4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: ShouldCorrectlyUndo
public void ShouldCorrectlyUndo()
{
var history = new History();
var element = new Ball() { X = 0, Y = 0 };
var change = new TranslationChange(element, 5, 5);
history.AddAndDo(change);
history.Undo();
Assert.IsFalse(history.CanUndo());
Assert.IsTrue(history.CanRedo());
Assert.AreEqual(0, element.X, 0.1);
Assert.AreEqual(0, element.Y, 0.1);
}示例2: ShouldRaiseEvents
public void ShouldRaiseEvents()
{
var eventsRaised = 0;
var history = new History();
var element = new Ball() { X = 0, Y = 0 };
var change = new TranslationChange(element, 5, 5);
// Bind closure expression
history.Change += () =>
{
eventsRaised++;
};
// Act
history.AddAndDo(change);
history.Undo();
history.Redo();
Assert.AreEqual(3, eventsRaised);
}示例3: Test
private static void Test()
{
int numberOfOperations = 20;
Random random = new Random(DateTime.UtcNow.Millisecond);
History<string> applicationHistory = new History<string>(null);
string operationName = string.Empty;
Console.WriteLine("Enter the number of random operations you'd like to add to the history:");
if (!int.TryParse(Console.ReadLine(), out numberOfOperations))
{
numberOfOperations = 20;
}
Console.WriteLine("Testing with {0} random operation{1}...", numberOfOperations, numberOfOperations == 1 ? string.Empty : "s");
for (int i = 0; i < numberOfOperations; i++)
{
operationName = GetOperation(random.Next());
applicationHistory.AddItemToHistory(operationName);
Console.WriteLine("Adding operation {0} to history...", operationName);
}
for (int i = 0; i < numberOfOperations; i++)
{
string op = applicationHistory.Undo();
Console.WriteLine("Undoing operation {0} from history...", op);
}
for (int i = 0; i < numberOfOperations; i++)
{
string op = applicationHistory.Redo();
Console.WriteLine("Redoing operation {0} from history...", op);
}
Console.WriteLine("");
Console.WriteLine("");
Console.WriteLine("");
}示例4: Interactive
private static void Interactive()
{
History<string> appHistory = new History<string>();
bool interactiveMode = true;
string input = string.Empty;
Console.WriteLine("");
while (interactiveMode)
{
Console.Write("hist> ");
input = Console.ReadLine();
switch (input.ToLower())
{
case "exit":
interactiveMode = false;
Console.WriteLine("hist> Exiting hist program... Thanks for playing!");
Console.WriteLine("");
Console.WriteLine("");
Console.WriteLine("");
break;
case "help":
Console.WriteLine("hist> Commands:");
Console.WriteLine("hist> exit - exit the hist program");
Console.WriteLine("hist> help - display this help text");
Console.WriteLine("hist> add - add input to the application history at the next prompt");
Console.WriteLine("hist> undo - undo the last input from the application history");
Console.WriteLine("hist> redo - redo the last input from the application history");
break;
case "add":
Console.WriteLine("hist> Enter text to add to history:");
Console.Write("hist> ");
input = Console.ReadLine();
Console.WriteLine("hist> Adding {0} to history...", input);
appHistory.AddItemToHistory(input);
break;
case "undo":
string undo = appHistory.Undo();
if (undo != null)
{
Console.WriteLine("hist> Undo {0} from application...", undo);
}
else
{
Console.WriteLine("hist> Nothing to undo...");
}
break;
case "redo":
string redo = appHistory.Redo();
if (redo != null)
{
Console.WriteLine("hist> Redo {0} to application...", redo);
}
else
{
Console.WriteLine("hist> Nothing to redo...");
}
break;
default:
Console.Beep();
Console.WriteLine("hist> Command not recognized... Please try again.");
break;
}
}
}