Get Object value by string path [duplicate]

Question

I have this string
Member.User.Name

and this instance:

Root root = new Root();
root.Member.User.Name = "user name";

How do I extract the value from root of the member Member.User.Name

for example:

string res = GetDeepPropertyValue(root, "Member.User.Name");

res will be "user name"

Thanks

Answer 1

Try this:

public object GetDeepPropertyValue(object instance, string path){
  var pp = path.Split('.');
  Type t = instance.GetType();
  foreach(var prop in pp){
    PropertyInfo propInfo = t.GetProperty(prop);
    if(propInfo != null){
      instance = propInfo.GetValue(instance, null);
      t = propInfo.PropertyType;
    }else throw new ArgumentException("Properties path is not correct");
  }
  return instance;
}
string res = GetDeepPropertyValue(root, "Member.User.Name").ToString();

NOTE: We don't need recursive solution for this because the number of loops is known beforehand. Using foreach would be more efficient if possible. We use recursion only when the implementation becomes complicated with for - foreach.