我怎么能砍包含URL字符串，并将其添加到阵列 [英] How can I cut a string that contains a url and add it to array

问题描述

我建立做一个自定义的痕迹，我想每个LinkBut​​ton的独特commandArgument网址。

I am building doing a custom breadcrumb and I want to each LinkButton unique commandArgument url.

我有一个通用的字符串变量是一个URL。每个子网站的名称可以是不同的，并且尽可能长的hierchy没有限制。

I have a generic string variable that is a url. The name of each subweb can be different and as long as possible the hierchy is not limited.

字符串变量可能是这样的：

the String variable could look like this:

http://site/org/content/Change/Book/process/item

我想这样做是为了分割字符串变量，它，所以它看起来像这样添加到一个数组：

what I would like to do is to split the string variable and add it to a array so it looks like this:

http://site/org
http://site/org/content/
http://site/org/content/Change/
http://site/org/content/Change/Book/
http://site/org/content/Change/Book/process/
http://site/org/content/Change/Book/process/item

我曾尝试以下code：

I have tried following code:

 private void AddBreadCrumb(SPWeb web)
    {
     var webUrl = web.Url;
     var linkList = new List<string>(webUrl.Split('/'));
     // etc..
    }

但它不喜欢做我想做的事情。

But it doesnt do like I want it to do.

任何形式的帮助是appriacted

Any kind of help is appriacted

推荐答案

您可以使用扩展方法对于有的 LINQ ：

You can use an extension method for that and some LINQ:

public static IEnumerable<string> ParseUrl(this string source)
{
    if(!Uri.IsWellFormedUriString(source, UriKind.Absolute)) 
         throw new ArgumentException("The URI Format is invalid");

    var index = source.IndexOf("//");
    var indices = source.Select((x, idx) => new {x, idx})
                .Where(p => p.x == '/' && p.idx > index + 1)
                .Select(p => p.idx);

    // Skip the first index because we don't want http://site
    foreach (var idx in indices.Skip(1))
    {
       yield return source.Substring(0,idx);
    }
    yield return source;
}

下面是用法：

string url = "http://site/org/content/Change/Book/process/item";
var parts = url.ParseUrl();

在结果 LINQPad ：

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