Iterate through Object's own Strings & Trim each

Question

I have multiple large objects which each have about 60 strings. I have to trim all those strings, and I\'d like to do so without having to go this.mystring = this.mystring.T

Answer 1

Not necessary to make IEnumerable check in the props-loop and if actual instance is a IEnumerable, props are ignored. Fix for IEnumerable part:

private void TrimWhitespace(object instance)
{
    if (instance != null)
    {
        if (instance is IEnumerable)
        {
            foreach (var item in (IEnumerable)instance)
            {
                TrimWhitespace(item);
            }
        }

        var props = instance.GetType()
                .GetProperties(BindingFlags.Instance | BindingFlags.Public)
            // Ignore indexers
                .Where(prop => prop.GetIndexParameters().Length == 0)
            // Must be both readable and writable
                .Where(prop => prop.CanWrite && prop.CanRead);

        foreach (PropertyInfo prop in props)
        {
            if (prop.GetValue(instance, null) is string)
            {
                string value = (string)prop.GetValue(instance, null);
                if (value != null)
                {
                    value = value.Trim();
                    prop.SetValue(instance, value, null);
                }
            }
            else 
                TrimWhitespace(prop.GetValue(instance, null));
        }
    }
}