Module.FindTypes Method (TypeFilter, Object)
Returns an array of classes accepted by the given filter and filter criteria.
Assembly: mscorlib (in mscorlib.dll)
Public Overridable Function FindTypes ( filter As TypeFilter, filterCriteria As Object ) As Type()
Parameters
- filter
-
Type:
System.Reflection.TypeFilter
The delegate used to filter the classes.
- filterCriteria
-
Type:
System.Object
An Object used to filter the classes.
Return Value
Type: System.Type()An array of type Type containing classes that were accepted by the filter.
| Exception | Condition |
|---|---|
| ReflectionTypeLoadException | One or more classes in a module could not be loaded. |
ReflectionTypeLoadException is a special class load exception. The ReflectionTypeLoadException.Types property contains the array of classes that were defined in the module and were loaded. This array may contain some null values. The ReflectionTypeLoadException.LoaderExceptions property is an array of exceptions that represent the exceptions that were thrown by the class loader. The holes in the class array line up with the exceptions.
The delegate given by filter is called for each class in the module, passing along the Type object representing the class as well as the given filterCriteria. If filter returns a particular class, that class will be included in the returned array. If filter returns null, all classes are returned and filterCriteria is ignored.
FindTypes cannot be used to look up parameterized types such as arrays.
The following example demonstrates the FindTypes method.
Imports System.Reflection Namespace ReflectionModule_Examples Class MyMainClass Shared Sub Main() Dim moduleArray() As [Module] moduleArray = GetType(MyMainClass).Assembly.GetModules(False) ' In a simple project with only one module, the module at index ' 0 will be the module containing these classes. Dim myModule As [Module] = moduleArray(0) Dim tArray() As Type tArray = myModule.FindTypes([Module].FilterTypeName, "My*") Dim t As Type For Each t In tArray Console.WriteLine("Found a module beginning with My*: {0}", t.Name) Next t End Sub 'Main End Class 'MyMainClass Class MySecondClass End Class 'MySecondClass ' This class does not fit the filter criteria My*. Class YourClass End Class 'YourClass End Namespace 'ReflectionModule_Examples
Available since 1.1