C#: How to get all public (both get and set) string properties of a type

Question

I am trying to make a method that will go through a list of generic objects and replace all their properties of type string which is either null or

Answer 1

If you don't specify any binding flags you will get the public, instance properties -- which is what you want. But then you will need to check if the PropertyType on the PropertyInfo object is of type String. Unless you know in advance, you'll also need to check whether the property is readable/writable as @Fredrik indicates.

using System.Linq;

public static void ReplaceEmptyStrings(List list, string replacement)
{
    var properties = typeof(T).GetProperties()
                              .Where( p => p.PropertyType == typeof(string) );
    foreach(var p in properties)
    {
        foreach(var item in list)
        {
            if(string.IsNullOrEmpty((string) p.GetValue(item, null)))
                p.SetValue(item, replacement, null);
        }
    }
}