Data binding for more than one property in a class

Question

I'am looking for a implementation of INotifyPropertyChanged for several dozen properties in one data class Class1. I want TwoWay binding to TextBox control per one property. I found this implementation of INotifyPropertyChanged, but I would have to modify Class1 and create fields that are exposed by properties.

Need solution for two main problems:

1. I want to do bidning without modyfing Class1 - it should only store data.
2. Fix the problem with creating fields that are exposed by properties as in linked solution.

Example class Class1:

    {
        public string Property1 { get; set; }
        public string Property2 { get; set; }
        public string Property3 { get; set; }
        public string Property4 { get; set; }
        public string Property5 { get; set; }
        public int Property6 { get; set; }
        public int Property7 { get; set; }
        public int Property8 { get; set; }
        public int Property9 { get; set; }
        public short Property10 { get; set; }
        public short Property11 { get; set; }
        public short Property12 { get; set; }
        public long Property13 { get; set; }
        public long Property14 { get; set; }
        public long Property15 { get; set; }
        public string Property16 { get; set; }
        public string Property17 { get; set; }
        public string Property18 { get; set; }
        public string Property19 { get; set; }
        public string Property20 { get; set; }
        public string Property21 { get; set; }
        public string Property22 { get; set; }
    }