C#: How to get all public (both get and set) string properties of a type
- by Svish
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 empty with a replacement.
How is a good way to do this?
I have this kind of... shell... so far:
public static void ReplaceEmptyStrings<T>(List<T> list, string replacement)
{
var properties = typeof(T).GetProperties( -- What BindingFlags? -- );
foreach(var p in properties)
{
foreach(var item in list)
{
if(string.IsNullOrEmpty((string) p.GetValue(item, null)))
p.SetValue(item, replacement, null);
}
}
}
So, how do I find all the properties of a type that are:
Of type string
Has public get
Has public set
?
I made this test class:
class TestSubject
{
public string Public;
private string Private;
public string PublicPublic { get; set; }
public string PublicPrivate { get; private set; }
public string PrivatePublic { private get; set; }
private string PrivatePrivate { get; set; }
}
The following does not work:
var properties = typeof(TestSubject)
.GetProperties(BindingFlags.Instance|BindingFlags.Public)
.Where(ø => ø.CanRead && ø.CanWrite)
.Where(ø => ø.PropertyType == typeof(string));
If I print out the Name of those properties I get there, I get:
PublicPublic
PublicPrivate
PrivatePublic
In other words, I get two properties too much.
Note: This could probably be done in a better way... using nested foreach and reflection and all here... but if you have any great alternative ideas, please let me know cause I want to learn!
