c# - How to check all properties of an object whether null or empty?

Question

I have an object lets call it ObjectA

and that object has 10 properties and those are all strings.

 var myObject = new {Property1="",Property2="",Property3="",Property4="",...}

is there anyway to check to see whether all these properties are null or empty?

So any built-in method that would return true or false?

If any single of them is not null or empty then the return would be false. If all of them are empty it should return true.

The idea is I do not want to write 10 if statement to control if those properties are empty or null.

Thanks

Answer 1

You can do it using Reflection

bool IsAnyNullOrEmpty(object myObject)
{
    foreach(PropertyInfo pi in myObject.GetType().GetProperties())
    {
        if(pi.PropertyType == typeof(string))
        {
            string value = (string)pi.GetValue(myObject);
            if(string.IsNullOrEmpty(value))
            {
                return true;
            }
        }
    }
    return false;
}

Matthew Watson suggested an alternative using LINQ:

return myObject.GetType().GetProperties()
    .Where(pi => pi.PropertyType == typeof(string))
    .Select(pi => (string)pi.GetValue(myObject))
    .Any(value => string.IsNullOrEmpty(value));