///<summary>Adds an item to the list.</summary>
///<param name="Username">The username to add.</param>
///<param name="PassHash">The hashed password to add.</param>
///<exception cref="ArgumentNullException">Either Username or Password is null.</exception>
public void AddHash(string Username, string PassHash)
{
if (Username == null || PassHash == null)
{
throw new ArgumentNullException();
}
if (Listing.ContainsKey(Username))
{
Listing[Username] = PassHash;
}
else
{
Listing.Add(Username, PassHash);
}
}
///<summary>Checks whether a user/passhash combination is present in the collection or not.</summary>
///<param name="Username">The username to search for.</param>
///<param name="PassHash">The corresponding password hash to search for.</param>
///<returns>True when the user/passhash combination is present in the collection, false otherwise.</returns>
public bool IsHashPresent(string Username, string PassHash)
{
return(Listing.ContainsKey(Username) && Listing[Username].Equals(PassHash));
}
///<summary>Checks whether a username is present in the collection or not.</summary>
///<param name="Username">The username to search for.</param>
///<returns>True when the username is present in the collection, false otherwise.</returns>
public bool IsUserPresent(string Username)
{
return(Listing.ContainsKey(Username));
}