public override string ToString() { if (!string.IsNullOrEmpty(_fixedValue)) { return(_fixedValue); } if (string.IsNullOrEmpty(Prefix)) { return(string.Empty); } string name = Name; if (string.IsNullOrEmpty(name)) { name = Suffix; } string size = "bg_32"; if (Sizes != null && Sizes.Length > 0) { size = Sizes.Min().ToString(); } else if (Prefix.Contains("/img/user")) { size = "64x64"; } return(string.Format("{0}{1}{2}", Prefix, size, name)); }