如何格式化字符串

Question

在我的应用中，我正在确定网络发生变化。我有一些我正在使用的示例代码，但我想以某种方式格式化结果字符串

string change = string.Empty;
        switch (e.NotificationType)
        {
            case NetworkNotificationType.InterfaceConnected:
                change = "Connected to ";
                break;
            case NetworkNotificationType.InterfaceDisconnected:
                change = "Disconnected from ";
                break;
            case NetworkNotificationType.CharacteristicUpdate:
                change = "Characteristics changed for ";
                break;
            default:
                change = "Unknown change with ";
                break;
        }

        string changeInformation = String.Format(" {0} {1} {2} ({3})",
                    DateTime.Now.ToString(), change, e.NetworkInterface.InterfaceName,
                    e.NetworkInterface.InterfaceType.ToString());

        // We are making UI updates, so make sure these happen on the UI thread.
        Dispatcher.BeginInvoke(() =>
        {
            Changes.Add(changeInformation); //Changes contains the changeInformation
        });

目前结果似乎是

但这根本没有很好的格式化，并且往往会混乱。我希望能够对其进行格式化，以便DateTime.Now.ToString()位于第一行，然后change位于下一行，然后是e.NetworkInterface.InterfaceName和e.NetworkInterface.InterfaceType.ToString()。我怎么能这样做？

Answer 1

使用明确的\r\n或更好的Environment.NewLine，例如

String.Format(" {0}{1}{2}{3}{4}({5})",
                DateTime.Now, Environment.NewLine, 
                change, Environment.NewLine, 
                e.NetworkInterface.InterfaceName,
                e.NetworkInterface.InterfaceType);

另请注意，您在参数中不需要裸体.ToString() - 这隐含在String.Format()

中

Answer 2

我认为你必须添加新行

string changeInformation = String.Format(" {0} {1} {2} {3} ({4})",
                    DateTime.Now.ToString(), Environment.NewLine, change, e.NetworkInterface.InterfaceName,
                    e.NetworkInterface.InterfaceType.ToString());