Parse a list to a string
Maybe I'm being too clever, but I have a method that goes through a enumerable List(Collections) and returns it as an ........... enumerable List(Sparkles).
I wanted to enclose the first 开发者_如何学Golist(Collections) in a class that handles validation and various other duties, otherwise I'd handle directly with the Collections.
I'm pretty sure that sounds more difficult that I should of made it. So the class returns a list(Sparkles) through a method called getSparkles().
I thought I was do a foreach right:
string msg;
List<string> layoutListNames = new List<string>();
foreach (string name in layoutList.getLayout());
{
msg = "\n" + name;
}
The compiler, however, disagrees with me.
Give me a hint. I would like to learn.
Edit: Sorry. getLayout() returns a List<>. And I removed the semicolon. Oh /facepalm.
I wrote this in a constructor to test a class and forgot to change the name of the constructor to match the class name. Thanks for the incredibly fast responses.
Whats wrong is the ';' behind foreach (string name in layoutList.getLayout()) ;
Remove that, and the compiler agrees..
Suggestion for making it better:
string msg = string.Join("\n", layoutListNames);
For one thing: You need to remove the ;
after the foreach
. Otherwise this will be an empty loop statement and in the following block name
will not be declared.
and try it again...
static void Main(string[] args)
{
string msg = null;
List<string> layoutListNames = new List<string>() { "test1","test2"};
foreach (string name in layoutListNames)
{
if (msg != null) msg += "\n";
msg += name;
}
Console.WriteLine("at 1:" + msg);
msg = string.Join("\n", layoutListNames.ToArray());
Console.WriteLine("at 2:" + msg);
Console.Read();
}
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