Is there a way to set multiple enum values in a configuration section?
Like you do in .net object.Filter = Filter.Update | Filter.Create;
<wacther filter="update, created"/>
Is something like that supported?
Is there a way to set multiple enum values in a configuration section?
Like you do in .net object.Filter = Filter.Update | Filter.Create;
<wacther filter="update, created"/>
Is something like that supported?
The easiest way is to use FlagsAttribute. But if you have already had the enum with the set of values, then you can use this code:
public static IEnumerable<T> GetEnumValues<T>(string enumValues)
{
return string.IsNullOrEmpty(enumValues)
? Enumerable.Empty<T>()
: enumValues.Split(',').Select(e => System.Enum.Parse(typeof(T), e.Trim(), true)).Cast<T>();
}
[ConfigurationProperty("filter")]
public string Filter => GetEnumValues<FilterEnum>((string) this["filter"]);
It just works out of the box:
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
var section = (MySection)ConfigurationManager.GetSection("mySection");
Console.WriteLine(section.Enum);
}
}
public class MySection : ConfigurationSection
{
[ConfigurationProperty("enum")]
public MyEnum Enum
{
get { return (MyEnum)this["enum"]; }
set { this["enum"] = value; }
}
}
[Flags]
public enum MyEnum
{
None = 0,
Foo = 1,
Bar = 2,
Baz = 4
}
}
<configSections>
<section name="mySection" type="ConsoleApplication1.MySection, ConsoleApplication1"/>
</configSections>
<mySection enum="Foo, Bar"/>
Prints: Foo, Bar
Define a flag enum:
Assume you have a string of enum from your config file:
So you can get the result: