Question

I’m working in .NET (C# 4.0); How do I write an expression that matches on an text that contains a ‘?’ or a space ‘\S’?

GlennTest    (should not match)
Glenn?Test   (should match) 
Glenn Test   (should match) 
Glenn? Test  (should match) 
Glenn ?Test  (should match) 
?Glenn Test  (should match) 

I am able to write expressions to find one, but combining them is giving me trouble.

CLARIFICATION:
I am clarifying my question because neither of the responses thus far worked.

I am writing an MVC app with the following RegExp Attribute on one of the properties, which appears to work as designed (doesnt allow spaces).

    [DataMember(Name="Job Code")]
    [Required(ErrorMessage="Job Code is required.")]
    [RegularExpression(@"^\S*$", ErrorMessage = "Spaces are not allowed in the Job Code")]
    public string JobCode { get; set; }

That said, I want to extend this capability to disallow ‘?’ question marks as well.

I also want the ability to test this in code, not on a MVC View using code like this:

public static bool IsValidCode(string code, out string message)
{
    message = "";
    const string NO_QMS_REG_EXP = @"^\?*$";
    const string NO_SPACES_REG_EXP = @"^\S*$";

    var expr1 = new Regex(NO_QMS_REG_EXP);
    var expr2 = new Regex(NO_SPACES_REG_EXP);
    if (expr1.IsMatch(code))
    {
        message = "Code cannot contain a question mark";
        return false;
    }
    if (expr2.IsMatch(code))
    {
        message = "Code cannot contain a space";
        return false;
    }
    // TODO: One expression that validates both simulatenously??
    return true;
}

MVC3 question: Can I programmatically execute the properties Regex Attrib validation?

Answer 1

You could also try

^[^?\s]*$

This matches any string that contains neither spaces nor question marks.