Generic way to set property values with .NET

You can iterate over your object graph and set property values with reflection:

object obj; // your object

Type t = obj.GetType();
foreach (var propInfo in t.GetProperties())
{
    propInfo.SetValue(obj, value, null);
}

If you can ensure that your class properties have getters you can iterate your object graph recursive:

public static void setValsRecursive(object obj, object value)
{
    Type t = obj.GetType();
    foreach (var propInfo in t.GetProperties())
    {
        if (propInfo.PropertyType.IsClass)
        {
            object propVal = propInfo.GetValue(obj, null);
            setValsRecursive(propVal, value);
        }
        propInfo.SetValue(obj, value, null);
    }
}   

This is a dumb function that sets every property to the same value ...

You can use PropertyInfo to dynamically set values in a generic way.