Getting Nested Object Property Value Using Reflection

Question

I have the following two classes:

public class Address
{
    public string AddressLine1 { get; set; }
    public string AddressLine2 { get; set; }
    public         


        

Answer 1

A Modified version of above to get the multilevel nested properties

private static System.Reflection.PropertyInfo GetProperty(object t, string PropertName, out object Value)
        {
            Value = "";
            var v = t.GetType().GetProperties();
            if (t.GetType().GetProperties().Count(p => p.Name == PropertName.Split('.')[0]) == 0)
                //throw new ArgumentNullException(string.Format("Property {0}, is not exists in object {1}", PropertName, t.ToString()));
                return null;
            if (PropertName.Split('.').Length == 1)
            {
                var Value1 = t.GetType().GetProperty(PropertName).GetValue(t, null);
                Value = Value1;//.ToString();
                return t.GetType().GetProperty(PropertName);
            }
            else
            {
                //return GetProperty(t.GetType().GetProperty(PropertName.Split('.')[0]).GetValue(t, null), PropertName.Split('.')[1], out Value);
                return GetProperty(t.GetType().GetProperty(PropertName.Split('.')[0]).GetValue(t, null), PropertName.Substring(PropertName.IndexOf('.') + 1, PropertName.Length - PropertName.IndexOf('.') - 1), out Value);
            }
        }

Answer 2

Recursive method, in one line...

object GetPropertyValue(object obj, string propertyName)
{
    return propertyName.Contains(".") ? GetPropertyValue(obj.GetType().GetProperty(propertyName.Split(".").First()).GetValue(obj), string.Join(".", propertyName.Split(".").Skip(1))) : obj != null ? obj.GetType().GetProperty(propertyName).GetValue(obj) : null;
}

Answer 3

I have a problem with struct type in static class, So I must use this method GetNestedType, this is example code if you know property name, If you want to getAll you can use GetNestedTypes

ExpandoObject in this example just use for dynamic add property and value

private void ExtractValuesFromAppconstants(string keyName)
        {
            Type type = typeof(YourClass);
            var examination = type.GetNestedType(keyName);
            if (examination != null)
            {    
                var innerTypes = examination.GetNestedTypes();
                foreach (var innerType in innerTypes)
                {
                    Console.Writeline($"{innerType.Name}")
                }
            }
        }

Answer 4

Get Nest properties e.g., Developer.Project.Name

private static System.Reflection.PropertyInfo GetProperty(object t, string PropertName)
            {
                if (t.GetType().GetProperties().Count(p => p.Name == PropertName.Split('.')[0]) == 0)
                    throw new ArgumentNullException(string.Format("Property {0}, is not exists in object {1}", PropertName, t.ToString()));
                if (PropertName.Split('.').Length == 1)
                    return t.GetType().GetProperty(PropertName);
                else
                    return GetProperty(t.GetType().GetProperty(PropertName.Split('.')[0]).GetValue(t, null), PropertName.Split('.')[1]);
            }

Answer 5

This will work for level 1 and level 2 object properties e.g. Firstname and Address.AddressLine1

public object GetPropertyValue(object obj, string propertyName)
{
    object targetObject = obj;
    string targetPropertyName = propertyName;

    if (propertyName.Contains('.'))
    {
        string[] split = propertyName.Split('.');
        targetObject = obj.GetType().GetProperty(split[0]).GetValue(obj, null);
        targetPropertyName = split[1];
    }

    return targetObject.GetType().GetProperty(targetPropertyName).GetValue(targetObject, null);
}