I have the REST API which returns the JSON response like

```
[{
    "AccountID": "adm",
    "CounterSeq": "024",
    "Year": "17"
}]

```

I need to retrieve the response

```
 var response_EndPoint = await client_EndPoint.GetAsync(EndPoint_URL);
 var projectName = await response_EndPoint.Content.ReadAsAsync<APIResponseModel[]>();

```

The model class looks like

```
public class APIResponseModel
{
    public string AccountID { get; set; }
    public string CounterSeq { get; set; }
    public string Year { get; set; }
}

```

I need to construct the String which should be like "adm-024-17". How can I convert the response in the string?