Question

为了保持简洁，我可以这样做：

UIRvWindow AppWin = new UIRvWindow();

UITestControl path = new UITestControl();

path = AppWin.UnderlyingClass1.UnderLyingClass2;

IEnumerable<WpfButton> collection = path.GetChildren().OfType<WpfButton>();

foreach(WpfButton button in collection)
{
    System.Diagnostics.Trace.WriteLine(button.FriendlyName + " - " + button.DisplayText + " - " + button.Name + " - " + button.AutomationId);
}

这很好，但我希望能够做到这一点：

UIRvWindow AppWin = new UIRvWindow();

UITestControl path = new UITestControl();

string x = "AppWin.UnderlyingClass1.UnderLyingClass2"; 

path = x;

IEnumerable<WpfButton> collection = path.GetChildren().OfType<WpfButton>();

foreach(WpfButton button in collection)
{
    System.Diagnostics.Trace.WriteLine(button.FriendlyName + " - " + button.DisplayText + " - " + button.Name + " - " + button.AutomationId);
}

基本上，我有一个字符串列表，我想逐个运行它们。有没有办法做到这一点？

Answer 1

反射是一种实现动态调用的方法。假设您有一个类型名称列表作为字符串，那么您可以执行以下操作：

List<string> classes = new List<string> { "WindowsFormsApplication1.MyClass1", "WindowsFormsApplication1.MyClass2" };
foreach (var typeName in classes)
{
     Type type = Type.GetType(typeName);
     var instance = Activator.CreateInstance(type);

     var result = (type.GetMethod("GetChildren").Invoke(instance, null) as IEnumerable<object>).OfType<WpfButton>();

}

如果您的所有类都继承自其中包含虚拟GetChildren()方法的基类，那么您可以减少一点反射，如下所示：

foreach (var typeName in classes)
{
     Type type = Type.GetType(typeName);
     var instance = Activator.CreateInstance(type);

     IEnumerable<WpfButton> myButtons = null;
     if(instance is MyBase) //MyBase is base class having virtual GetChildren() and this base class is derived by MyClass1, MyClass2...
     {
          myButtons = (instance as MyBase).GetChildren().OfType<WpfButton>();
     }
}

如果您计划使用太多类型的PS反射可能会出现性能问题，请谨慎使用并正确设计目标。希望这能帮到你......

将字符串转换为UITestControl

1 个答案: