Challenge #2 - Solution - BindObjectProperties Last

BindingExtensions.cs

public static string BindObjectProperties(this string str, object obj)
{
    if (obj == null) return str;
    foreach (var item in ExtractParams(str))
    {
        str = str.Replace("{" + item + "}", obj.GetPropValue(item)?.ToString());
    }
    return str;
}