How can I match custom PropertyGrid BrowsableAttributes entries?
<p>I have a class(KeywordProperties) with this code :</p>

<pre><code>public class KeywordProperties
    {
        [DisplayMode("0-1,0-2,0-3,1-1,1-2,1-3,1-6,1-9,1-10,1-11,1-12,2-1,2-2,2-3,2-9,2-10,2-12,3-1,3-2,3-3,3-10,3-12,4-13,5,6")]
        public string Onvaan { get; set; }

        [DisplayMode("0-1,0-2,0-3,1-1,1-2,1-3,1-6,1-9,1-10,1-11,1-12,2-1,2-2,2-3,2-9,2-10,2-12,3-1,3-2,3-3,3-10,3-12,4-13,5,6")]
        public string MozooKolli { get; set; }

        [DisplayMode("0-10,1-10,3-10,3-12,5,6")]
        public string EsmeDars { get; set; }

        [DisplayMode("0-1,1-1,2-1,2-2,3-1,6")]       
        public string Sokhanraan { get; set; }

        [DisplayMode("0-10,1-2,2-1,2-10,3-10,6")]
        public string Modares { get; set; }
}
</code></pre>

<p>And I have another for check attributes :</p>

<pre><code>[AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
public class DisplayModeAttribute : Attribute
{
    private readonly string mode;
    public DisplayModeAttribute(string mode)
    {
        this.mode = mode ?? "";
    }
    public override bool Match(object obj)
    {
        var other = obj as DisplayModeAttribute;
        if (other == null) return false;

        if (other.mode == mode) return true;

        // allow for a comma-separated match, in either direction
        if (mode.IndexOf(',') &gt;= 0)
        {
            string[] tokens = mode.Split(',');
            if (Array.IndexOf(tokens, other.mode) &gt;= 0) return true;
        }
        else if (other.mode.IndexOf(',') &gt;= 0)
        {
            string[] tokens = other.mode.Split(',');
            if (Array.IndexOf(tokens, mode) &gt;= 0) return true;
        }
        return false;
    }
}
</code></pre>

<p>I want display properties in propertygrid with this code :</p>

<pre><code>String Code = "":
KeywordProperties Kp = new KeywordProperties();
propertygrid1.SelectedObject = Kp;
propertygrid1.BrowsableAttributes = new AttributeCollection(new DisplayModeAttribute(Code));
</code></pre>

<p>When Code vlue is "0-1" or "5" or ...(single value), I can see my properties.
But, when use "0-1,1-2" for Code, I can't see any thing in my properygrid. </p>

<p>How can I see these data :</p>

<p>1- All properties that have code <strong>0-1 and</strong> code <strong>1-2</strong> : </p>

<p>result is :<strong>Onvaan,MozooKolli</strong></p>

<p>2- All properties that have code <strong>0-1 or</strong> code <strong>1-2</strong> : </p>

<p>result is : <strong>Onvaan,MozooKolli,Sokhanraan,Modares</strong></p>
