将字符串添加到列表 <string> 用剃刀

Question

I need to add an array of strings in TempData["scripts"], but first I need to see if the string already exist... If it exist don't add it... else add it to the array.

This is what I have so far... It add the strings to the array... but I need to check the Tempdata first so it doesn't take duplicates...

@{
        var scripts = (List<string>)TempData["scripts"];
        scripts.Add("../Scripts/test.js");
        scripts.Add("../Scripts/testv.js");
        scripts.Add("../Scripts/testh.js");
    }

Answer 1

@{
        var scripts = (List<string>)TempData["scripts"];
        if(scripts.Contains("../Scripts/test.js") == false)
        {
             scripts.Add("../Scripts/test.js");
        }
        //repeat with the others
    }

Answer 2

Edit to reflect your answer

Assuming TempData["scripts"] is an IEnumerable<string> , you can do this more simply:

var scripts = (HashSet<string>)TempData["scripts"];
string[] path = {
    "../Scripts/jquery-flot/jquery.flot.js",
    "../Scripts/jquery-flot/jquery.flot.time.min.js",
    "../Scripts/jquery-flot/jquery.flot.selection.min.js",
    "../Scripts/jquery-flot/jquery.flot.animator.min.js",
    "../Scripts/jquery-sparkline/jquery-sparkline.js"
};

foreach (var item in path)
    scripts.Add(item);

There's no need to check for duplicates this way.

Answer 3

I wanted to be able to pass the path as an argument so I don't have to repeat it twice every time

 @{
        var scripts = (List<string>)TempData["scripts"];
        string[] path = {
            "../Scripts/jquery-flot/jquery.flot.js",
            "../Scripts/jquery-flot/jquery.flot.time.min.js",
            "../Scripts/jquery-flot/jquery.flot.selection.min.js",
            "../Scripts/jquery-flot/jquery.flot.animator.min.js",
            "../Scripts/jquery-sparkline/jquery-sparkline.js"
        };
        foreach (var item in path)
        {
            if (scripts.Contains(item) == false) { scripts.Add(item); }
        }
    }