C# Reflection on Nested Properties of a Class

I wanted to know how can I get the Value of Property in C#, but this property is of another Type.

public class Customer
{
   public string Name {get; set;}
   public string Lastname {get; set;}
   public CustomerAddress Address {get; set;}
}

So I'm able to get the property values of Name and LastName but I quite don't get how to get the value of CustomerAddress.City.

This is what I have until now.

public object GetPropertyValue(object obj, string property)
{
   if (string.IsNullOrEmpty(property))
   return new object { };

   PropertyInfo propertyInfo = obj.GetType().GetProperty(property);
   return propertyInfo.GetValue开发者_高级运维(obj, null);
} 

Then is use this method in a LINQ statement.

var cells = (from m in model
                         select new
                         {
                             i = GetPropertyValue(m, key),
                             cell = from c in columns
                                select reflection.GetPropertyValue(m, c)
                     }).ToArray();

So I get no value for the CustomerAddress.

Any help will be deeply appreciated.

**** UPDATE ****

Here how I managed to do it.

public object GetNestedPropertyValue(object obj, string property)
        {
            if (string.IsNullOrEmpty(property)) 
                return string.Empty;

            var propertyNames = property.Split('.');

            foreach (var p in propertyNames)
            {
                if (obj == null)
                    return string.Empty;

                Type type = obj.GetType();
                PropertyInfo info = type.GetProperty(p);
                if (info == null)
                    return string.Empty;

                obj = info.GetValue(obj, null);

            }

            return obj;
        }

First off, if you want to get the value of CustomerAddress.City, you will never get it. CustomerAddress is the type, not the property name. You want to get Address.City.

That said, your GetPropertyValue is not set up to do what you want.

Try splitting the name by the dots:

var propertyNames = property.split('.');

Now, you have a list of the property names {"Address", "City"}

Then, you can loop through these property names, one by one, calling GetPropertyValue recursively.

That should do it :)

@Michael -> the inverted part;-)

public static void SetNestedPropertyValue(object obj, string property,object value)
        {
            if (obj == null)
                throw new ArgumentNullException("obj");

            if (string.IsNullOrEmpty(property))
                throw new ArgumentNullException("property");

            var propertyNames = property.Split('.');

            foreach (var p in propertyNames)
            {

                Type type = obj.GetType();
                PropertyInfo info = type.GetProperty(p);
                if (info != null)
                {
                    info.SetValue(obj, value);
                    return;
                }

            }

            throw new KeyNotFoundException("Nested property could not be found.");
        }