Attribute.IsDefined : Attributes « Reflection « C# / C Sharp






Attribute.IsDefined

  
    using System;
    using System.Reflection;
    
    [assembly: AssemblyDescription("A sample description")]

    public class DemoClass
    {
        static void Main(string[] args)
        {
            Type clsType = typeof(DemoClass);
            Assembly assy = clsType.Assembly;
            String assyName = assy.GetName().Name;
            bool isdef = Attribute.IsDefined(assy, typeof(AssemblyDescriptionAttribute));
            if (isdef)
            {
                Console.WriteLine("The AssemblyDescription attribute is defined for assembly {0}.", assyName);
                AssemblyDescriptionAttribute adAttr = (AssemblyDescriptionAttribute)Attribute.GetCustomAttribute(assy, typeof(AssemblyDescriptionAttribute));
                if (adAttr != null)
                    Console.WriteLine("The description is \"{0}\".", 
                        adAttr.Description);
            }
        }
    }

   
    
  








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