How to fix errors in switch operator
===

I have a class named config with two string fields named key paramValue and parameterPath.

When I apply the ChooseType method of the class, the method has to return one variable paramValue in different types (Int or bool or String).

I implemented it as follow:



    class ConfigValue
    {
        public string parameterPath;
        private string paramValue;

        public ConfigValue(string ParameterPath="empty",string ParamValue="empty")
        {
            this.parameterPath = ParameterPath;
            this.paramValue = ParameterPath;
        }

        public enum RetType { RetInt=1, RetBool, RetString };

        

        public  T ChooseType<T>(RetType how)
        {
            
            {
               
                switch(how)
                 {
                    case RetType.RetInt:

                         return int.Parse(string this.paramValue);
                            break;

                    case RetType.RetBool:
                        
                        return  Boolean.Parse(string this.paramValue);
                            break;

                    case RetType.RetString:
                            
                           return this.paramValue;
                          break;
                 }

             }
        }

    }

But,I get error in switch operator in the next rows:
   
     return int.Parse(string this.paramValue);
--Error--Only assignment, call, increment, decrement, and new object expressions can be used as a statement.

     return  Boolean.Parse(string this.paramValue);
-- Error-- Invalid expression term 'string'.

     return this.paramValue;
--Error-- Cannot implicitly convert type 'string' to 'T'.

     
Please,any idea why do I get these errors and how can i fix the code?
        
   
     








