How to iterate through each property of a custom vb.net object? - asp.net

Question

How can I go through each of the properties in my custom object? It is not a collection object, but is there something like this for non-collection objects?
For Each entry as String in myObject
' Do stuff here...
Next
There are string, integer and boolean properties in my object.

Answer 1

By using reflection you can do that. In C# it looks like that;
PropertyInfo[] propertyInfo = myobject.GetType().GetProperties();
Added a VB.Net translation:
Dim info() As PropertyInfo = myobject.GetType().GetProperties()

Answer 2

You can use System.Reflection namespace to query information about the object type.
For Each p As System.Reflection.PropertyInfo In obj.GetType().GetProperties()
If p.CanRead Then
Console.WriteLine("{0}: {1}", p.Name, p.GetValue(obj, Nothing))
End If
Next
Please note that it is not suggested to use this approach instead of collections in your code. Reflection is a performance intensive thing and should be used wisely.

Answer 3

System.Reflection is "heavy-weight", i always implement a lighter method first..
//C#
if (item is IEnumerable) {
foreach (object o in item as IEnumerable) {
//do function
}
} else {
foreach (System.Reflection.PropertyInfo p in obj.GetType().GetProperties()) {
if (p.CanRead) {
Console.WriteLine("{0}: {1}", p.Name, p.GetValue(obj, null)); //possible function
}
}
}
'VB.Net
If TypeOf item Is IEnumerable Then
For Each o As Object In TryCast(item, IEnumerable)
'Do Function
Next
Else
For Each p As System.Reflection.PropertyInfo In obj.GetType().GetProperties()
If p.CanRead Then
Console.WriteLine("{0}: {1}", p.Name, p.GetValue(obj, Nothing)) 'possible function
End If
Next
End If

Answer 4

You can use reflection... With Reflection you can examine every member of a class (a Type), proeprties, methods, contructors, fields, etc..
using System.Reflection;
Type type = job.GetType();
foreach ( MemberInfo memInfo in type.GetMembers() )
if (memInfo is PropertyInfo)
{
// Do Something
}