使用GalaSoft MvvmLight消息传递类，如何将字符附加到现有消息的末尾？ [英] Using the GalaSoft MvvmLight messaging class, how can I append characters to the end of an existing message?

问题描述

Using the GalaSoft MvvmLight messaging class, how can I append characters (more dots, for example) to the end of an existing message that is displaying on the GUI, rather than over-writing the message each time?

For example, I have a particular class (MyMessage) that I created:


<pre lang="c#">public class MyMessage : MessageBase
{
    public enum FeedbackStateEnum { Starting, Completed, Skipped }
    public string StatusMsg { get; private set; }

    public MyMessage(object sender, string statusMsg)
        : base(sender)
    {
        StatusMsg = statusMsg;
    }

    public override string ToString()
    {
        return base.ToString() + "(" + StatusMsg + ")";
    }
}

我有另一个基类，我在其中注册了消息对象：

I have another base class in which I register the message object:

// Handle any broadcast messages so that they can be resent to the client
    Messenger.Default.Register<MyMessage>(this, MyMessageMethod);

private void MyMessageMethod(MyMessage obj)
{
    DisplayMessage("Status:  " + obj.StatusMsg);
}

我不想每次都覆盖此消息，而是想附加一个。到现有消息的末尾。现在我有以下行在GUI上显示消息。

Rather than over-writing this message each time, I wanted to append a " ." to the end of the existing message. Right now I have the following line that displays the message on the GUI.

Messenger.Default.Send(new MyMessage(this, "Processing Data . ."));

每个通过循环的时间，我想添加另一个。消息。我似乎找不到办法做到这一点。



谢谢，蕾妮

Each time through the loop, I want to add another " ." to the message. I can't seem to find a way to do that.

Thanks, Renee

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