Plateforme Level Extreme
Abonnement
Profil corporatif
Produits & Services
Support
Légal
English
Handling DB Nulls
Message
Information générale
Forum:
ASP.NET
Catégorie:
Conception classe
Divers
Thread ID:
01440804
Message ID:
01440889
Vues:
36
>>Kevin,
>>
>>I'm sure I've posted my GetNonNull set of static methods here a gazillion times. <g> Here it is again in the form of a link to my blog post about it:
>>
>>http://geek-goddess-bonnie.blogspot.com/2009/11/getting-non-null-data.html
>>
>>~~Bonnie
>>
>
>Bonnie,
>
>Is it fair to say that all types - except string - will be value types ?
>
>If so - consider this for the next update of the blog
>
>
>	public static class ExtensionMethods
>	{
>		//______________________________________________________________________
>		public static T GetNonNull<T>(this  T? value) where T : struct
>		{
>			return value == null ? default(T) : (T)value;
>		}
>		//______________________________________________________________________
>		public static string GetNonNull(this string value)
>		{
>			return value == null ? "" : value;
>		}
>		//______________________________________________________________________
>	}
>
>
>// test
>public class test2
>	{
>		
>
>		//______________________________________________________________________
>		public static void Main( string[] args )
>		{
>			int? i = null;
>			bool? b = null;
>			string x = null;
>			DateTime? dt = null;
>
>			Console.WriteLine("i: {0}", i.GetNonNull());
>			Console.WriteLine("b: {0}", b.GetNonNull());
>			Console.WriteLine("x: {0}", x.GetNonNull());
>			Console.WriteLine("dt: {0}", dt.GetNonNull());
>
>			Console.ReadLine();
>		}
>	}
>
>
Ok, I created a static class called ExtensionMethods in my MiscFunctions solution. I referenced it in this project and added the using statement. When I type this:
_ProjectName = ds.Tables[0].Rows[0]["ProjectName"].ToString();
I don't see GetNonNull in intellisense.

What am I doing wrong?
Everything makes sense in someone's mind
public class SystemCrasher :ICrashable
In addition, an integer field is not for irrational people
Précédent
Suivant
Répondre
Fil
Voir

Click here to load this message in the networking platform