使用WPF窗口模拟控制台 [英] Emulating a console with a WPF window
问题描述
首先，免责声明，你要见证的是我第一次编码近20年。我是新来的C＃和WPF，试图让我的头WPF是一个挑战。
在过去的一个月，我一直在一个宠物项目控制台应用程序，它已经表现良好。
我想仿效一个控制台（只是基本的outpu功能）通过在WPF窗口中使用包裹在滚动器内的WPF文本块。您可以看到原来的控制台应用程序在操作这里，以更好地了解控制台输出的种类我试图模拟。但我有一个主要的问题与基本的函数调用，我认为这是因为我不完全明白WPF / C＃如何工作。
应用程序在代码中通过Main（）代码：
类程序
{
public static ConsoleWindow MainConsole = new ConsoleWindow（）;
[STAThread]
static void Main（string [] args）
{
Application MyApplication = new Application（）;
MyApplication.Run（MainConsole）;
//以下代码不工作，它在Textblock中没有输出
MainConsole.WriteLine（Crystal Console）;
MainConsole.WriteLine（Version：+ Properties.Settings.Default.BuildVersion）;
MainConsole.WriteLine（Current Time：+ DateTime.Now）;
MainConsole.WriteLine（Last Login：+ Properties.Settings.Default.dateLastLogin）;
}
}
问题是调用的方法似乎对文本块的内容有任何影响。
虽然我将提供很多信息，以防万一需要，问题本身很简单： 当在同一窗口中从文本框控件获取内容时，为什么Textblock更新正常，但在Main（）中调用相同的方法时不会显示任何更新
为了测试的目的，窗口有几个Textboxes在窗口中调用.WriteLine方法，THAT工作，所以我知道.WriteLine代码没有问题，你可以看到这里：
public void WriteLine（string Message = null，string Sender = null）
{
_Console .AddElement（new ConsoleElement（Sender，Message +\\\
））;
_Console.DisplayContent（ConsoleTextBlock）;
ConsoleScroller.ScrollToEnd（）;
}
下面是控制台本身的代码， ConsoleElement本质上只是一个对象，它包含要在Textblock中显示的消息以及每个消息的格式。
class ConsoleStream
{
IList< ConsoleElement> ConsoleElements = new List< ConsoleElement>（）;
public void AddElement（ConsoleElement NewElement）
{
if（NewElement.Sender == null）//发件人是系统不是用户。
{
NewElement.Content =+ NewElement.Content;
NewElement.Font = new FontFamily（Arial）;
NewElement.FontSize = 12;
}
ConsoleElements.Add（NewElement）;
}
public void ClearElements（）
{
ConsoleElements.Clear（）;
}
public void DisplayContent（textBlock sender）
{
sender.Text = null;
foreach（ConsoleElements中的ConsoleElement消息）
{
//如果消息是状态更新，即没有发送者，则将其格式化为系统消息。
if（Message.Sender！= null）
{
sender.Inlines.Add（new Run（Message.Sender +：）{Foreground = Message.SenderColour，FontFamily = Message。 Font，FontSize = Message.FontSize}）;
}
//如果消息有一个发送者，它是用户或AI。将其格式化为用户消息。
if（Message.Sender！= null）sender.Inlines.Add（new Run（Message.Content）{Foreground = Message.ContentColour，FontFamily = Message.Font，FontSize = Message.FontSize}）;
else sender.Inlines.Add（new Run（Message.Content）{Foreground = Message.SystemColour，FontFamily = Message.Font，FontSize = Message.FontSize}）;
}
}
}
MyApplication.Run（MainConsole）;
将代码移动到ConsoleWindow的load（或init）方法中
Firstly, a disclaimer, what you're about to witness is my first bit of coding for almost 20 years. I'm new to C# and WPF, trying to get my head WPF is more than a challenge.
For the past month I've been working on a pet project console application, which has been performing well. I'm now trying to take it another step further by adding a modern GUI to the project.
I'd like to emulate a console (just the basic outpu functionality) by using a WPF textblock wrapped inside a scroller in a WPF window. You can see the original console application in action here to get a better idea of the kind of console output I'm trying to emulate. But I'm having a major problem with basic function calls, and I assume it's because I don't fully understand how WPF/C# work under the hood.
The Application starts in code via Main() like so:
class Program
{
public static ConsoleWindow MainConsole = new ConsoleWindow();
[STAThread]
static void Main(string[] args)
{
Application MyApplication = new Application();
MyApplication.Run(MainConsole);
// The following code does not work, it produces no output in the Textblock
MainConsole.WriteLine("Crystal Console");
MainConsole.WriteLine("Version: " + Properties.Settings.Default.BuildVersion);
MainConsole.WriteLine("Current Time: " + DateTime.Now);
MainConsole.WriteLine("Last Login: " + Properties.Settings.Default.dateLastLogin);
}
}
The problem is that the methods called don't seem to have any affect on the content of the textblock.
Although I'm about to give a lot of information just in case it's needed, the question itself is quite simple: Why does the Textblock update fine when taking content from a textbox control on the same window, but doesn't show any updates when the same method is called in Main() ?
For testing purposes the window has a few Textboxes that call the .WriteLine method inside the window, and THAT works, so I know there isn't a problem with the .WriteLine code, which you can see here:
public void WriteLine(string Message = null, string Sender = null)
{
_Console.AddElement(new ConsoleElement(Sender, Message + "\n"));
_Console.DisplayContent(ConsoleTextBlock);
ConsoleScroller.ScrollToEnd();
}
Here is the code for the console itself in case it's needed, the class "ConsoleElement" is essentially just a object that contains the messages to be displayed in the Textblock as well as the formatting for each one.
class ConsoleStream
{
IList<ConsoleElement> ConsoleElements = new List<ConsoleElement>();
public void AddElement(ConsoleElement NewElement)
{
if (NewElement.Sender == null) // Sender is System not user.
{
NewElement.Content = " " + NewElement.Content;
NewElement.Font = new FontFamily("Arial");
NewElement.FontSize = 12;
}
ConsoleElements.Add(NewElement);
}
public void ClearElements()
{
ConsoleElements.Clear();
}
public void DisplayContent(TextBlock sender)
{
sender.Text = null;
foreach (ConsoleElement Message in ConsoleElements)
{
//If message is a status update, i.e. has no sender, format it as a system message.
if (Message.Sender != null)
{
sender.Inlines.Add(new Run(Message.Sender + ": ") { Foreground = Message.SenderColour, FontFamily = Message.Font, FontSize = Message.FontSize });
}
//if message has a sender it's either the user or the AI. Format it as a user message.
if (Message.Sender != null) sender.Inlines.Add(new Run(Message.Content) { Foreground = Message.ContentColour, FontFamily = Message.Font, FontSize = Message.FontSize });
else sender.Inlines.Add(new Run(Message.Content) { Foreground = Message.SystemColour, FontFamily = Message.Font, FontSize = Message.FontSize });
}
}
}
MyApplication.Run(MainConsole); takes control of the thread, the code after it doesn't execute until after you close the window.
Move the code to the load (or init) method of your ConsoleWindow
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