CODEWITHSUNDEEP
c#.netstring.net-4.0.net-3.5
ChevCast
ChevCast

Reputation: 59173

string.Join throws an exception

I am converting a working .NET 3.5 application to .NET 4.0 and after changing the target framework I'm getting an error I've never seen before.

Member 'string.Join(string, params string[])' cannot be accessed with an instance reference; qualify it with a type name instead.

Here is the code:

/// <summary>
/// 
/// </summary>
/// <returns>command arguments as single line</returns>
public virtual string ToLine()
{
    List<string> argumentsList = new List<string>();
    CollectArguments(argumentsList);
    String args = null;
    foreach (string s in argumentsList)
        args = args.Join(" ", s);

    return ComandName().Join(" ", args);            
}

Obviously something changed from 3.5 to 4.0 but I'm having a hard time figuring out how I should modify this code to get it to compile.

Upvotes: 3

Views: 990

Answers (2)

ionden
ionden

Reputation: 12776

    public virtual string ToLine()
    {
        List<string> argumentsList = new List<string>();
        CollectArguments(argumentsList);
        String args = null;
        args = string.Join(" ", argumentsList);
        return string.Join(" ", ComandName(), args);
    }

Upvotes: 2

Brian Rasmussen
Brian Rasmussen

Reputation: 116401

Join is a static method on String, so call it using the type instead of an instance like this 

args = string.Join(" ", s);

Upvotes: 7

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