Question

I have a class with a set of properties as given below.

class CustomerInfo
{
    public string Address { get; set; }
    public string FirstName{ get; set; }
    public string LastName{ get; set; }
    public string PostCode{ get; set; }
    public string Title{ get; set; }
    public string Email{ get; set; }
}

I have a method called getinfo(string Fields) which take string field names as parameters like below “FirstName, LastName, Title” based on the parameter fields my method should return only the list with

<CustomerInfo>
<FirstName></FirstName>
<LastName></LastName>
<Title></Title>
</CustomerInfo>

How can I do this in c#?

Public List<CustomerInfo>  getinfo(string Fields)
{
List<CustomerInfo>  list = new List<CustomerInfo> ();
…….
return list;
}

Please do the needful.

Answer 1

You could do something with refletion like this. I haven’t tried to compile this, but it should be pretty close.

List<CustomerInfo>  inList = new List<CustomerInfo> ();
List<CustomerInfo>  outList = new List<CustomerInfo> ();

string[] properties = string.split(',');
foreach(var info in inList)
{
    CustomerInfo filteredInfo = new CustomerInfo();
    foreach(var property in properties)
    {  
       var pi = typeof(CustomerInfo).GetProperty(property);
       pi.SetValue(filteredInfo, pi.GetValue(info, null), null);
    }
    outList.Add(filteredInfo);
}

return outList;