让C＃尊重\\ n从Web服务返回一个字符串？

Question

I have a messaging system that is a .NET 2 ASMX web service, very basic system. I push messages and would like to have newline symbols in the message so it's formatted on the receiving end. For example, I'd like to send a string such as: "Hello\\n\\nMy Name Is..." and have it have two line breaks. When the receiver reads the text it's actually outputting the \\n's in the text. How can I get the \\n's to be interpreted as if I was writing it in C#? Or \\t etc.

Thank you.

Answer 1

You should compose the message using Environment.NewLine to insert the character(s) used to represent a newline on your system.

See here for references

However using Environment.NewLine has some problems.
For example, your message should be written in this way

string msg = "Hello" + Environment.NewLine + Environment.NewLine + "My Name Is...";

a bit cumbersome to use from a programmer point of view.

Then you could write an extension method for the string class which takes your message and insert at the place of a placeholder the Environment.NewLine chars.

This example use the | (pipe) character as placeholder for the newline pos.

public static string InsertLineBreaks(this string inMsg)
{
    Strinbuilder sb = new StringBuilder(inMsg);
    sb.Replace("|", Environment.NewLine);
    return sb.ToString();
}

and you can call this extension in this way

string msg = "Hello||My Name Is...".InsertLineBreaks();

Answer 2

The web service is likely sending the message back with carriage returns listed as "%0D". What I have done in my programs is use:

str.Replace("%0D", Environment.NewLine);

That seems to work for me.

I'm sure you could also use:

str.Replace("%0D", "\n");

Answer 3

You have to replace the \\n with something that is interpreted as a new line by the browser, ie <br/> . I suppose you're using it as an HTML string.

Besides you need to get sure that it isn't HtmlEncoded, ie, that your <br/> isn't converted into <br/> . This shouldn't happend if you're using JSON serialization. but will happen if you serialize it as XML and isn't properly decoded in client side.

Answer 4

用这个：

string returnString = "Hello" + Environment.NewLine+ "My Name Is..";