How To Get Different Responses From One Class

This tutorial is about getting different responses in one class using a generic class.

We can implement that by using a generic class. So first, we have to use the namespace.

using System.Collections.Generic

After adding the namespace, we must create a generic class and pass a type parameter in angle brackets after the class name.  

public class Response < T > {
    public HttpStatusCode ResponseCode {
        get;
        set;
    }
    public string ResponseMessage {
        get;
        set;
    }
    public string ResponseDesc {
        get;
        set;
    }
    public bool IsSuccess {
        get;
        set;
    }
    public T Result {
        get;
        set;
    }
    public Response() {
        this.ResponseCode = HttpStatusCode.OK;
        this.ResponseMessage = ResponseCommon.GetEnumName(HttpStatusCode.OK);
        this.ResponseDesc = ResponseCommon.GetEnumName(ResultDescription.Success);
        this.IsSuccess = true;
    }
}

We can use that class just by passing the parameter data type. For example, I created a class Response<T>, then we have to pass just like this Response<int>, Response<string>, and Response<AnyClass>

The following shows how to use Response<T> in the WebAPI or any other method. You can see the below snippet.

public Response < List < User >> GetUserList() {
    Response < List < Users >> ResponseFinal = new Response < List < Users >> ();
    List < Users > UsersList = new List < Users > ();
    try {
        UsersList = new DAL_User().GetUserList();
        if (UsersList.Count > 0) {
            ResponseFinal.Result = UsersList;
        } else {
            ResponseFinal.IsSuccess = false;
            ResponseFinal.ResponseCode = HttpStatusCode.BadRequest;
            ResponseFinal.ResponseMessage = ResponseCommon.GetEnumName(ResultDescription.Failed);
            ResponseFinal.ResponseDesc = ResponseCommon.GetEnumName(ResultDescription.Failed);
            ResponseFinal.Result = UsersList;
        }
    } catch (Exception ex) {
        ResponseFinal.IsSuccess = false;
        ResponseFinal.ResponseCode = HttpStatusCode.ExpectationFailed;
        ResponseFinal.ResponseMessage = ResponseCommon.GetEnumName(ResultDescription.Exception_Found);
        ResponseFinal.ResponseDesc = ex.Message;
        ResponseFinal.Result = UsersList;
    }
    return ResponseFinal;
}