Why is my GetFields(BindingFlags.Instance | BindingFlags.Public) not working? (Sample working code included)
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From: sloan on 11 Jun 2010 09:52 My code in see the NonPublic members, but not the Public ones. Full sample code below. FieldInfo[] publicFieldInfos = t.GetFields(BindingFlags.Instance | BindingFlags.Public); is returning nothing. Note, I'm trying to get at the properties on the abstract class as well as the 1 concrete class. (And read the attributes as well). I'm going bonkers on this one....the msdn example works with the 2 flags (BindingFlags.Instance | BindingFlags.Public).....but my mini inheritance example below is not. THANKS in advance. private void RunTest1() { try { textBox1.Text = string.Empty; Type t = typeof(MyInheritedClass); //Look at the BindingFlags *** NonPublic *** int fieldCount = 0; while (null != t) { fieldCount += t.GetFields(BindingFlags.Instance | BindingFlags.NonPublic).Length; FieldInfo[] nonPublicFieldInfos = t.GetFields(BindingFlags.Instance | BindingFlags.NonPublic); foreach (FieldInfo field in nonPublicFieldInfos) { if (null != field) { Console.WriteLine(field.Name); } } t = t.BaseType; } Console.WriteLine("\n\r------------------\n\r"); //Look at the BindingFlags *** Public *** t = typeof(MyInheritedClass); FieldInfo[] publicFieldInfos = t.GetFields(BindingFlags.Instance | BindingFlags.Public); foreach (FieldInfo field in publicFieldInfos) { if (null != field) { Console.WriteLine(field.Name); object[] attributes = field.GetCustomAttributes(t, true); if (attributes != null && attributes.Length > 0) { foreach (Attribute att in attributes) { Console.WriteLine(att.GetType().Name); } } } } } catch (Exception ex) { ReportException(ex); } } private void ReportException(Exception ex) { Exception innerException = ex; while (innerException != null) { Console.WriteLine(innerException.Message + System.Environment.NewLine + innerException.StackTrace + System.Environment.NewLine + System.Environment.NewLine); innerException = innerException.InnerException; } } public abstract class MySuperType { public MySuperType(string st) { this.STString = st; } public string STString { get; set; } public abstract string MyAbstractString {get;set;} } public class MyInheritedClass : MySuperType { public MyInheritedClass(string ic) : base(ic) { this.ICString = ic; } [Description("This is an important property"),Category("HowImportant")] public string ICString { get; set; } private string _oldSchoolPropertyString = string.Empty; public string OldSchoolPropertyString { get { return _oldSchoolPropertyString; } set { _oldSchoolPropertyString = value; } } [Description("This is a not so importarnt property"), Category("HowImportant")] public override string MyAbstractString { get; set; } }
From: sloan on 11 Jun 2010 12:45
I forgot these newsgroups are being abandoned. The answer is "Use .GetProperties" instead. Someone at stackoverflow answered it for me. "sloan" <sloan(a)ipass.net> wrote in message news:e08cS1WCLHA.4604(a)TK2MSFTNGP05.phx.gbl... > > > My code in see the NonPublic members, but not the Public ones. > > > > Full sample code below. > > FieldInfo[] publicFieldInfos = t.GetFields(BindingFlags.Instance | > BindingFlags.Public); > > is returning nothing. > > Note, I'm trying to get at the properties on the abstract class as well as > the 1 concrete class. > > (And read the attributes as well). > > > > I'm going bonkers on this one....the msdn example works with the 2 flags > (BindingFlags.Instance | BindingFlags.Public).....but my mini inheritance > example below is not. > > THANKS in advance. > > > > > > > > > > private void RunTest1() > > { > > try > > { > > textBox1.Text = string.Empty; > > Type t = typeof(MyInheritedClass); > > > //Look at the BindingFlags *** NonPublic *** > > int fieldCount = 0; > > while (null != t) > > { > > fieldCount += t.GetFields(BindingFlags.Instance | > BindingFlags.NonPublic).Length; > > FieldInfo[] nonPublicFieldInfos = t.GetFields(BindingFlags.Instance | > BindingFlags.NonPublic); > > foreach (FieldInfo field in nonPublicFieldInfos) > > { > > if (null != field) > > { > > Console.WriteLine(field.Name); > > > > } > > } > > t = t.BaseType; > > } > > > > Console.WriteLine("\n\r------------------\n\r"); > > > > > > //Look at the BindingFlags *** Public *** > > t = typeof(MyInheritedClass); > > FieldInfo[] publicFieldInfos = t.GetFields(BindingFlags.Instance | > BindingFlags.Public); > > foreach (FieldInfo field in publicFieldInfos) > > { > > if (null != field) > > { > > Console.WriteLine(field.Name); > > > > object[] attributes = field.GetCustomAttributes(t, true); > > if (attributes != null && attributes.Length > 0) > > { > > foreach (Attribute att in attributes) > > { > > Console.WriteLine(att.GetType().Name); > > > > } > > } > > } > > } > > } > > catch (Exception ex) > > { > > ReportException(ex); > > } > > } > > private void ReportException(Exception ex) > > { > > > > Exception innerException = ex; > > while (innerException != null) > > { > > Console.WriteLine(innerException.Message + System.Environment.NewLine + > innerException.StackTrace + System.Environment.NewLine + > System.Environment.NewLine); > > > > innerException = innerException.InnerException; > > } > > } > > > public abstract class MySuperType > > { > > public MySuperType(string st) > > { > > this.STString = st; > > } > > public string STString > > { > > get; > > set; > > } > > public abstract string MyAbstractString {get;set;} > > } > > public class MyInheritedClass : MySuperType > > { > > public MyInheritedClass(string ic) > > : base(ic) > > { > > this.ICString = ic; > > } > > [Description("This is an important property"),Category("HowImportant")] > > public string ICString > > { > > get; > > set; > > } > > > private string _oldSchoolPropertyString = string.Empty; > > public string OldSchoolPropertyString > > { > > get { return _oldSchoolPropertyString; } > > set { _oldSchoolPropertyString = value; } > > } > > > [Description("This is a not so importarnt property"), > Category("HowImportant")] > > public override string MyAbstractString > > { > > get; set; > > } > > > } > > |