Hi,
I am working on an ASP.NET application where I need to create a unique
key in a page. When a customer clicks on the button "Generate Key" I
need to create a key which should be unique in the database. I am
plannig to create in the format MMDDYYHHMMSS.

I have written a class that generates the key:

public class GenUniqueID
{
    private static readonly GenUniqueID instUnique=new GenUniqueID();

    private StringBuilder strUnique=new StringBuilder("");

    private GenUniqueID()
    {
        DateTime dtID=DateTime.Now;
        strUnique.Append(dtID.Month);
        strUnique.Append(dtID.Day);
        strUnique.Append((dtID.Year.ToString()).Substring(2,2));
        strUnique.Append(dtID.Hour);
        strUnique.Append(dtID.Minute);
        strUnique.Append(dtID.Second);
    }

    public static GenUniqueID Instance
    {
        return instUnique;
    }

    public static string UniqueID
    {
        get
        {
            return strUnique.ToString();
        }
    }
}

I'll call this method from my aspx page :

GenUniqueID key=GenUniqueID.Instance();
string strKey=key.UniqueID;

Will this guarantee a UNIQUE key even if two or more users from
different locations will click on "Generate Key" at the same time???

Thanks,
Ashish.