Is Method Exists

Checks whether a method with the specified name exists in the given object.

Returns False if containingObject is Nothing or if methodName is null or empty.
Uses reflection to check both public and non-public, instance and static methods.
Returns True if a method with the exact name is found; otherwise, False.

    Public Function IsMethodExists(containingObject As Object, methodName As String) As Boolean
    
        If containingObject Is Nothing OrElse String.IsNullOrEmpty(methodName) Then Return False
        
        Dim type As Type = containingObject.GetType()
        Dim method As MethodInfo = type.GetMethod(methodName, 
                                                  BindingFlags.Public Or 
                                                  BindingFlags.NonPublic Or 
                                                  BindingFlags.Instance Or 
                                                  BindingFlags.Static)                                                
        Return method IsNot Nothing
    End Function

    Public Function IsMethodExists(containingObject As Object, methodName As String) As Boolean
    
        If containingObject Is Nothing OrElse String.IsNullOrEmpty(methodName) Then Return False
        
        Dim type As Type = containingObject.GetType()
        Dim method As MethodInfo = type.GetMethod(methodName, 
                                                  BindingFlags.Public Or 
                                                  BindingFlags.NonPublic Or 
                                                  BindingFlags.Instance Or 
                                                  BindingFlags.Static)                                                
        Return method IsNot Nothing
    End Function

Posted by ipercube